Problem:
Range Count Query
数列
a_1,a_2,..,a_N
が与えられます。
クエリでは、値が
l
以上
r
以下の項の個数を答えてください。
入力
N Q
a_1 a_2...a_N
l_1 r_1
l_2 r_2
:
l_q r_q
出力
ans_1
ans_2
:
ans_q
i
行目には、
i
番目のクエリに対する答え、すなわち
l_i \leq a_j \leq r_i
なる
j
の個数を出力せよ。
制約
1 \leq N,Q \leq 10^5
1 \leq a_i \leq 10^9
1 \leq l_i \leq r_i \leq 10^9
入力例
6 3
8 6 9 1 2 1
2 8
1 7
3 5
出力例
3
4
0

Submitted solutions:

code_snippet: #include<bits/stdc++.h>


using namespace std;
//make -f ../makefile SRC=
/*
*/


//------------------------------------------------------------------------------
bool DEBUG = false;
const int INF = 1000000000;

const int MAX_N = 100000;
static int vect[MAX_N];
//------------------------------------------------------------------------------
void test()
{
}

// search value <= v
int query(int N, int v)
{
    auto it1 = lower_bound(vect, vect+N, v);
    if (it1 == vect+N) return N;
    else if (*it1 > v) return distance(vect, it1);

    auto it2 = lower_bound(vect, vect+N, v+1);
    return distance(vect, it2);
}

int query(int N, int v1, int v2)
{
    return query(N, v2) -  query(N, v1-1);
}
//------------------------------------------------------------------------------
int main()
{
    //test(); return 0;
    //DEBUG = true;
    //--------------------------------------------------------------------------
    int N, Q, v1, v2, num;
    num = scanf("%d %d ", &N, &Q);
    for (int i=0; i<N; ++i) num = scanf("%d ", &vect[i]);
    sort(vect, vect+N);

    for (int q=0; q<Q; ++q)
    {
        num = scanf("%d %d ", &v1, &v2);
        printf("%d\n", query(N, v1, v2));
    }

    //--------------------------------------------------------------------------
    return 0;
}
//------------------------------------------------------------------------------
accuracy: 1
time_ms: 40
memory_kb: 3956
final_rank: 5

code_snippet: #line 1 "a.cpp"
#define PROBLEM ""
#line 2 "/home/kuhaku/home/github/algo/lib/template/template.hpp"
#pragma GCC target("sse4.2,avx2,bmi2")
#pragma GCC optimize("O3")
#pragma GCC optimize("unroll-loops")
#include <bits/stdc++.h>
template <class T, class U>
constexpr bool chmax(T &a, const U &b) {
    return a < (T)b ? a = (T)b, true : false;
}
template <class T, class U>
constexpr bool chmin(T &a, const U &b) {
    return (T)b < a ? a = (T)b, true : false;
}
constexpr std::int64_t INF = 1000000000000000003;
constexpr int Inf = 1000000003;
constexpr double EPS = 1e-7;
constexpr double PI = M_PI;
#line 3 "/home/kuhaku/home/github/algo/lib/template/macro.hpp"
#define FOR(i, m, n) for (int i = (m); i < int(n); ++i)
#define FORR(i, m, n) for (int i = (m)-1; i >= int(n); --i)
#define FORL(i, m, n) for (int64_t i = (m); i < int64_t(n); ++i)
#define rep(i, n) FOR (i, 0, n)
#define repn(i, n) FOR (i, 1, n + 1)
#define repr(i, n) FORR (i, n, 0)
#define repnr(i, n) FORR (i, n + 1, 1)
#define all(s) (s).begin(), (s).end()
#line 3 "/home/kuhaku/home/github/algo/lib/template/sonic.hpp"
struct Sonic {
    Sonic() {
        std::ios::sync_with_stdio(false);
        std::cin.tie(nullptr);
        std::cout << std::fixed << std::setprecision(20);
    }

    constexpr void operator()() const {}
} sonic;
#line 5 "/home/kuhaku/home/github/algo/lib/template/atcoder.hpp"
using namespace std;
using ll = std::int64_t;
using ld = long double;
template <class T, class U>
std::istream &operator>>(std::istream &is, std::pair<T, U> &p) {
    return is >> p.first >> p.second;
}
template <class T>
std::istream &operator>>(std::istream &is, std::vector<T> &v) {
    for (T &i : v) is >> i;
    return is;
}
template <class T, class U>
std::ostream &operator<<(std::ostream &os, const std::pair<T, U> &p) {
    return os << '(' << p.first << ',' << p.second << ')';
}
template <class T>
std::ostream &operator<<(std::ostream &os, const std::vector<T> &v) {
    for (auto it = v.begin(); it != v.end(); ++it) {
        os << (it == v.begin() ? "" : " ") << *it;
    }
    return os;
}
template <class Head, class... Tail>
void co(Head &&head, Tail &&...tail) {
    if constexpr (sizeof...(tail) == 0) std::cout << head << '\n';
    else std::cout << head << ' ', co(std::forward<Tail>(tail)...);
}
template <class Head, class... Tail>
void ce(Head &&head, Tail &&...tail) {
    if constexpr (sizeof...(tail) == 0) std::cerr << head << '\n';
    else std::cerr << head << ' ', ce(std::forward<Tail>(tail)...);
}
template <typename T, typename... Args>
auto make_vector(T x, int arg, Args... args) {
    if constexpr (sizeof...(args) == 0) return std::vector<T>(arg, x);
    else return std::vector(arg, make_vector<T>(x, args...));
}
void Yes(bool is_correct = true) {
    std::cout << (is_correct ? "Yes" : "No") << '\n';
}
void No(bool is_not_correct = true) {
    Yes(!is_not_correct);
}
void YES(bool is_correct = true) {
    std::cout << (is_correct ? "YES" : "NO") << '\n';
}
void NO(bool is_not_correct = true) {
    YES(!is_not_correct);
}
void Takahashi(bool is_correct = true) {
    std::cout << (is_correct ? "Takahashi" : "Aoki") << '\n';
}
void Aoki(bool is_not_correct = true) {
    Takahashi(!is_not_correct);
}
#line 3 "a.cpp"

int main(void) {
    int n, q;
    cin >> n >> q;
    vector<int> a(n);
    cin >> a;
    sort(all(a));

    while (q--) {
        int l, r;
        cin >> l >> r;
        co(upper_bound(all(a), r) - lower_bound(all(a), l));
    }

    return 0;
}
accuracy: 1
time_ms: 40
memory_kb: 3600
final_rank: 2

code_snippet: #include<bits/stdc++.h>
using namespace std;
int main(){
    int n, q, a, l, r;
    vector<int> v;
    cin >> n >> q;
    for(int i=0;i<n;i++){
        cin >> a;
        v.push_back(a);
    }
    sort(v.begin(), v.end());
    for(int i=0;i<q;i++){
        cin >> l >> r;
        cout << upper_bound(v.begin(), v.end(), r)-lower_bound(v.begin(), v.end(), l) << endl;
    }
    return(0);
}
accuracy: 1
time_ms: 190
memory_kb: 3396
final_rank: 13

code_snippet: #include<bits/stdc++.h>
using namespace std;
int main(){
    int n, q, a, l, r;
    vector<int> v;
    cin >> n >> q;
    v.push_back(0);
    for(int i=1;i<=n;i++){
        cin >> a;
        v.push_back(a);
    }
    sort(v.begin(), v.end());
    for(int i=0;i<q;i++){
        cin >> l >> r;
        cout << upper_bound(v.begin(), v.end(), r)-lower_bound(v.begin(), v.end(), l) << endl;
    }
    return(0);
}
accuracy: 1
time_ms: 190
memory_kb: 3416
final_rank: 14

code_snippet: #pragma region Macros

// #pragma GCC target("avx,avx2,fma")
// #pragma GCC optimize("O3,unroll-loops")

#include <bits/extc++.h>
// #include <immintrin.h>
// #include <atcoder/all>
// using namespace atcoder;
using namespace std;
using namespace __gnu_pbds;

// #include <boost/multiprecision/cpp_dec_float.hpp>
// #include <boost/multiprecision/cpp_int.hpp>
// namespace mp = boost::multiprecision;
// using Bint = mp::cpp_int;
// using Bdouble = mp::number<mp::cpp_dec_float<256>>;

#define TO_STRING(var) # var
#define pb emplace_back
#define int ll
#define endl '\n'
#define sqrt __builtin_sqrtl

using ll = long long;
using ld = long double;
const ld PI = acos(-1);
const ld EPS = 1e-10;
const int INF = 1 << 30;
const ll INFL = 1LL << 61;
const int MOD = 998244353;
// const int MOD = 1000000007;

const vector<int> dx = {0, 1, -1, 0, 1, 1, -1, -1}; // → ↓ ← ↑ ↘ ↙ ↖ ↗
const vector<int> dy = {1, 0, 0, -1, 1, -1, -1, 1};

struct Edge {
    int from, to;
    int cost;
    Edge(int to, int cost) : from(-1), to(to), cost(cost) {}
    Edge(int from, int to, int cost) : from(from), to(to), cost(cost) {}
    Edge &operator=(const int &x) {
        to = x;
        return *this;
    }
};

__attribute__((constructor))
void constructor() {
    ios::sync_with_stdio(false);
    cin.tie(nullptr);
    cout << fixed << setprecision(12);
}

struct custom_hash {
    static uint64_t splitmix64(uint64_t x) {
        x += 0x9e3779b97f4a7c15;
        x = (x ^ (x >> 30)) * 0xbf58476d1ce4e5b9;
        x = (x ^ (x >> 27)) * 0x94d049bb133111eb;
        return x ^ (x >> 31);
    }

    size_t operator()(uint64_t x) const {
        static const uint64_t FIXED_RANDOM = chrono::steady_clock::now().time_since_epoch().count();
        return splitmix64(x + FIXED_RANDOM);
    }
};

int POW(int x, int n) {
    __int128_t ret = 1;
    // if (ret >= INFL) return INFL;
    if (n < 0) { cout << "error" << endl; return 0; }
    else if (x == 1 or n == 0) ret = 1;
    else if (x == -1 && n % 2 == 0) ret = 1; 
    else if (x == -1) ret = -1; 
    else if (n % 2 == 0) ret = POW(x * x, n / 2);
    else ret = x * POW(x, n - 1);

    if (ret > 8e18) ret = 0;
    return ret;
}
int floor(int x, int y) { return (x > 0 ? x / y : (x - y + 1) / y); }
int ceil(int x, int y) { return (x > 0 ? (x + y - 1) / y : x / y); }
ll per(int x, int y) {
    if (y == 0) {
        cout << "error" << endl;
        return INFL;
    }
    if (x >= 0 && y > 0) return x / y;
    if (x >= 0 && y < 0) return x / y - (x % y < 0);
    if (x < 0 && y < 0) return x / y + (x % y < 0);
    // if (x < 0 && y > 0) 
    return x / y - (x % y < 0);
}
ll mod(int x, int y) {
    if (y == 0) {
        cout << "error" << endl;
        return INFL;
    }
    if (x >= 0 && y > 0) return x % y;
    if (x >= 0 && y < 0) return x % y;
    if (x < 0 && y < 0) {
        __int128_t ret = x % y;
        ret += (__int128_t)abs(y) * INFL;
        ret %= abs(y);
        return ret;
    }
    // if (x < 0 && y > 0) {
        __int128_t ret = x % y;
        ret += (__int128_t)abs(y) * INFL;
        ret %= abs(y);
        return ret;
    // }
}

template <class T> bool chmax(T &a, const T& b) {
    if (a < b) { a = b; return true; }
    return false;
}
template <class T> bool chmin(T &a, const T& b) {
    if (a > b) { a = b; return true; }
    return false;
}

int countl_zero(int N) { return __builtin_clzll(N); }
int countl_one(int N) {
    int ret = 0; while (N % 2) { N /= 2; ret++; }
    return ret;
}
int countr_zero(int N) { return __builtin_ctzll(N); }
int countr_one(int N) {
    int ret = 0, k = 63 - __builtin_clzll(N);
    while (k != -1 && (N & (1LL << k))) { k--; ret++; }
    return ret;
}
int popcount(int N) { return __builtin_popcountll(N); }
int unpopcount(int N) { return 64 - __builtin_clzll(N) - __builtin_popcountll(N); }

int top_bit(int N) { return 63 - __builtin_clzll(N);} // 2^kの位
int bot_bit(int N) { return __builtin_ctz(N);} // 2^kの位
int MSB(int N) { return 1 << (63 - __builtin_clzll(N)); } // mask

int bit_width(int N) { return 64 - __builtin_clzll(N); } // 桁数
int ceil_log2(int N) { return 63 - __builtin_clzll(N); }
int bit_floor(int N) { return 1 << (63 - __builtin_clzll(N)); }
int floor_log2(int N) { return 64 - __builtin_clzll(N-1); }
int bit_ceil(int N) { return 1 << (64 - __builtin_clzll(N-1)) - (N==1); }

class UnionFind {
public:
	UnionFind() = default;
    UnionFind(int N) : par(N), sz(N, 1) {
        iota(par.begin(), par.end(), 0);
    }

	int root(int x) {
		if (par[x] == x) return x;
		return (par[x] = root(par[x]));
	}

	bool unite(int x, int y) {
		int rx = root(x);
		int ry = root(y);

        if (rx == ry) return false;
		if (sz[rx] < sz[ry]) swap(rx, ry);

		sz[rx] += sz[ry];
		par[ry] = rx;

        return true;
	}

	bool issame(int x, int y) { return (root(x) == root(y)); }
	int size(int x) { return sz[root(x)]; }

    vector<vector<int>> groups(int N) {
        vector<vector<int>> G(N);
        for (int x = 0; x < N; x++) {
            G[root(x)].push_back(x);
        }
		G.erase(
            remove_if(G.begin(), G.end(),
                [&](const vector<int>& V) { return V.empty(); }),
                    G.end());
        return G;
    }

private:
	vector<int> par;
	vector<int> sz;
};

template<int mod> class Modint{
public:
    int val = 0;
    Modint(int x = 0) { while (x < 0) x += mod; val = x % mod; }
    Modint(const Modint &r) { val = r.val; }

    Modint operator -() { return Modint(-val); } // 単項
    Modint operator +(const Modint &r) { return Modint(*this) += r; }
    Modint operator +(const int &q) { Modint r(q); return Modint(*this) += r; }
    Modint operator -(const Modint &r) { return Modint(*this) -= r; }
    Modint operator -(const int &q) { Modint r(q); return Modint(*this) -= r; }
    Modint operator *(const Modint &r) { return Modint(*this) *= r; }
    Modint operator *(const int &q) { Modint r(q); return Modint(*this) *= r; }
    Modint operator /(const Modint &r) { return Modint(*this) /= r; }
    Modint operator /(const int &q) { Modint r(q); return Modint(*this) /= r; }
    
    Modint& operator ++() { val++; if (val >= mod) val -= mod; return *this; } // 前置
    Modint operator ++(signed) { ++*this; return *this; } // 後置
    Modint& operator --() { val--; if (val < 0) val += mod; return *this; }
    Modint operator --(signed) { --*this; return *this; }
    Modint &operator +=(const Modint &r) { val += r.val; if (val >= mod) val -= mod; return *this; }
    Modint &operator +=(const int &q) { Modint r(q); val += r.val; if (val >= mod) val -= mod; return *this; }
    Modint &operator -=(const Modint &r) { if (val < r.val) val += mod; val -= r.val; return *this; }
    Modint &operator -=(const int &q) { Modint r(q);  if (val < r.val) val += mod; val -= r.val; return *this; }
    Modint &operator *=(const Modint &r) { val = val * r.val % mod; return *this; }
    Modint &operator *=(const int &q) { Modint r(q); val = val * r.val % mod; return *this; }
    Modint &operator /=(const Modint &r) {
        int a = r.val, b = mod, u = 1, v = 0;
        while (b) {int t = a / b; a -= t * b; swap(a, b); u -= t * v; swap(u, v);}
        val = val * u % mod; if (val < 0) val += mod;
        return *this;
    }
    Modint &operator /=(const int &q) {
        Modint r(q); int a = r.val, b = mod, u = 1, v = 0;
        while (b) {int t = a / b; a -= t * b; swap(a, b); u -= t * v; swap(u, v);}
        val = val * u % mod; if (val < 0) val += mod;
        return *this;
    }

    bool operator ==(const Modint& r) { return this -> val == r.val; }
    bool operator <(const Modint& r) { return this -> val < r.val; }
    bool operator !=(const Modint& r) { return this -> val != r.val; }
};

using mint = Modint<MOD>;

istream &operator >>(istream &is, mint& x) {
    int t; is >> t;
    x = t;
    return (is);
}
ostream &operator <<(ostream &os, const mint& x) {
    return os << x.val;
}
mint modpow(const mint &x, int n) {
    if (n == 0) return 1;
    mint t = modpow(x, n / 2);
    t = t * t;
    if (n & 1) t = t * x;
    return t;
}

int modpow(__int128_t x, int n, int mod) {
    __int128_t ret = 1;
    while (n > 0) {
        if (n % 2 == 1) ret = ret * x % mod;
        x = x * x % mod;
        n /= 2;
    }
    return ret;
}

int modinv(__int128_t x, int mod) {
    if (x == 1) return 1;
    return mod - modinv(mod % x, mod) * (mod / x) % mod;
}

ostream &operator <<(ostream &os, __int128_t value) {
    ostream::sentry s(os);
    if (s) {
        __uint128_t tmp = value < 0 ? -value : value;
        char buffer[128];
        char *d = end(buffer);

        do {
            --d; *d = "0123456789"[tmp % 10];
            tmp /= 10;
        } while (tmp != 0);

        if (value < 0) { d--; *d = '-'; }

        int len = end(buffer) - d;
        if (os.rdbuf()->sputn(d, len) != len) {
            os.setstate(ios_base::badbit);
        }
    }
    return os;
}

vector<mint> fac, finv, Inv;
void COMinit(int N) {
    fac.resize(N + 1);
    finv.resize(N + 1);
    Inv.resize(N + 1);
    fac[0] = fac[1] = 1;
    finv[0] = finv[1] = 1;
    Inv[1] = 1;
    for (int i = 2; i <= N; i++) {
        fac[i] = fac[i-1] * mint(i);
        Inv[i] = -Inv[MOD % i] * mint(MOD / i);
        finv[i] = finv[i - 1] * Inv[i];
    }
}

mint COM(int N, int K) {
    if (N < K) return 0;
    if (N < 0 or K < 0) return 0;
    return fac[N] * finv[K] * finv[N - K];
}

#pragma endregion

struct DynamicBIT {
    int N;            // 配列の要素数(数列の要素数+1)
    gp_hash_table<int, int> bit;  // データの格納先(0-indexed)
    explicit DynamicBIT() = default;
    explicit DynamicBIT(int size) { N = size + 1; }

    void add(int i, int x) {
        i++;
        while (i < N) {
            bit[i] += x;
            i += (i & -i);
        }
    }

    int sum(int i) {
        if (i < 0) return 0;
        int ret = 0;
        while (i > 0) {
            auto it = bit.find(i);
            if (it != bit.end()) ret += it->second;
            i -= (i & -i);
        }
        return ret;
    }

    int sum(int l, int r) { return sum(r) - sum(l); }
    int get(int i) {
        int l = i, r = i + 1;
        return sum(r) - sum(l);
    }
};

signed main() {
    int N, Q;
    cin >> N >> Q;
    tree<pair<int, int>, null_type,less<pair<int, int>>, rb_tree_tag, tree_order_statistics_node_update> tr;
    for (int i = 0; i < N; i++) {
        int a;
        cin >> a;
        tr.insert(make_pair(a, i));
    }

    for (int q = 0; q < Q; q++) {
        int l, r;
        cin >> l >> r;
        int cnt1 = tr.order_of_key(make_pair(l, -1));
        int cnt2 = tr.order_of_key(make_pair(r + 1, -1));
        cout << cnt2 - cnt1 << endl;
    }
}
accuracy: 1
time_ms: 80
memory_kb: 9724
final_rank: 8

code_snippet: #pragma region Macros

// #pragma GCC target("avx,avx2,fma")
// #pragma GCC optimize("O3,unroll-loops")

#include <bits/extc++.h>
// #include <immintrin.h>
// #include <atcoder/all>
// using namespace atcoder;
using namespace std;
using namespace __gnu_pbds;

// #include <boost/multiprecision/cpp_dec_float.hpp>
// #include <boost/multiprecision/cpp_int.hpp>
// namespace mp = boost::multiprecision;
// using Bint = mp::cpp_int;
// using Bdouble = mp::number<mp::cpp_dec_float<256>>;

#define TO_STRING(var) # var
#define pb emplace_back
#define int ll
#define endl '\n'
#define sqrt __builtin_sqrtl

using ll = long long;
using ld = long double;
const ld PI = acos(-1);
const ld EPS = 1e-10;
const int INF = 1 << 30;
const ll INFL = 1LL << 61;
const int MOD = 998244353;
// const int MOD = 1000000007;

const vector<int> dx = {0, 1, -1, 0, 1, 1, -1, -1}; // → ↓ ← ↑ ↘ ↙ ↖ ↗
const vector<int> dy = {1, 0, 0, -1, 1, -1, -1, 1};

struct Edge {
    int from, to;
    int cost;
    Edge(int to, int cost) : from(-1), to(to), cost(cost) {}
    Edge(int from, int to, int cost) : from(from), to(to), cost(cost) {}
    Edge &operator=(const int &x) {
        to = x;
        return *this;
    }
};

__attribute__((constructor))
void constructor() {
    ios::sync_with_stdio(false);
    cin.tie(nullptr);
    cout << fixed << setprecision(12);
}

struct custom_hash {
    static uint64_t splitmix64(uint64_t x) {
        x += 0x9e3779b97f4a7c15;
        x = (x ^ (x >> 30)) * 0xbf58476d1ce4e5b9;
        x = (x ^ (x >> 27)) * 0x94d049bb133111eb;
        return x ^ (x >> 31);
    }

    size_t operator()(uint64_t x) const {
        static const uint64_t FIXED_RANDOM = chrono::steady_clock::now().time_since_epoch().count();
        return splitmix64(x + FIXED_RANDOM);
    }
};

int POW(int x, int n) {
    __int128_t ret = 1;
    // if (ret >= INFL) return INFL;
    if (n < 0) { cout << "error" << endl; return 0; }
    else if (x == 1 or n == 0) ret = 1;
    else if (x == -1 && n % 2 == 0) ret = 1; 
    else if (x == -1) ret = -1; 
    else if (n % 2 == 0) ret = POW(x * x, n / 2);
    else ret = x * POW(x, n - 1);

    if (ret > 8e18) ret = 0;
    return ret;
}
int floor(int x, int y) { return (x > 0 ? x / y : (x - y + 1) / y); }
int ceil(int x, int y) { return (x > 0 ? (x + y - 1) / y : x / y); }
ll per(int x, int y) {
    if (y == 0) {
        cout << "error" << endl;
        return INFL;
    }
    if (x >= 0 && y > 0) return x / y;
    if (x >= 0 && y < 0) return x / y - (x % y < 0);
    if (x < 0 && y < 0) return x / y + (x % y < 0);
    // if (x < 0 && y > 0) 
    return x / y - (x % y < 0);
}
ll mod(int x, int y) {
    if (y == 0) {
        cout << "error" << endl;
        return INFL;
    }
    if (x >= 0 && y > 0) return x % y;
    if (x >= 0 && y < 0) return x % y;
    if (x < 0 && y < 0) {
        __int128_t ret = x % y;
        ret += (__int128_t)abs(y) * INFL;
        ret %= abs(y);
        return ret;
    }
    // if (x < 0 && y > 0) {
        __int128_t ret = x % y;
        ret += (__int128_t)abs(y) * INFL;
        ret %= abs(y);
        return ret;
    // }
}

template <class T> bool chmax(T &a, const T& b) {
    if (a < b) { a = b; return true; }
    return false;
}
template <class T> bool chmin(T &a, const T& b) {
    if (a > b) { a = b; return true; }
    return false;
}

int countl_zero(int N) { return __builtin_clzll(N); }
int countl_one(int N) {
    int ret = 0; while (N % 2) { N /= 2; ret++; }
    return ret;
}
int countr_zero(int N) { return __builtin_ctzll(N); }
int countr_one(int N) {
    int ret = 0, k = 63 - __builtin_clzll(N);
    while (k != -1 && (N & (1LL << k))) { k--; ret++; }
    return ret;
}
int popcount(int N) { return __builtin_popcountll(N); }
int unpopcount(int N) { return 64 - __builtin_clzll(N) - __builtin_popcountll(N); }

int top_bit(int N) { return 63 - __builtin_clzll(N);} // 2^kの位
int bot_bit(int N) { return __builtin_ctz(N);} // 2^kの位
int MSB(int N) { return 1 << (63 - __builtin_clzll(N)); } // mask

int bit_width(int N) { return 64 - __builtin_clzll(N); } // 桁数
int ceil_log2(int N) { return 63 - __builtin_clzll(N); }
int bit_floor(int N) { return 1 << (63 - __builtin_clzll(N)); }
int floor_log2(int N) { return 64 - __builtin_clzll(N-1); }
int bit_ceil(int N) { return 1 << (64 - __builtin_clzll(N-1)) - (N==1); }

class UnionFind {
public:
	UnionFind() = default;
    UnionFind(int N) : par(N), sz(N, 1) {
        iota(par.begin(), par.end(), 0);
    }

	int root(int x) {
		if (par[x] == x) return x;
		return (par[x] = root(par[x]));
	}

	bool unite(int x, int y) {
		int rx = root(x);
		int ry = root(y);

        if (rx == ry) return false;
		if (sz[rx] < sz[ry]) swap(rx, ry);

		sz[rx] += sz[ry];
		par[ry] = rx;

        return true;
	}

	bool issame(int x, int y) { return (root(x) == root(y)); }
	int size(int x) { return sz[root(x)]; }

    vector<vector<int>> groups(int N) {
        vector<vector<int>> G(N);
        for (int x = 0; x < N; x++) {
            G[root(x)].push_back(x);
        }
		G.erase(
            remove_if(G.begin(), G.end(),
                [&](const vector<int>& V) { return V.empty(); }),
                    G.end());
        return G;
    }

private:
	vector<int> par;
	vector<int> sz;
};

template<int mod> class Modint{
public:
    int val = 0;
    Modint(int x = 0) { while (x < 0) x += mod; val = x % mod; }
    Modint(const Modint &r) { val = r.val; }

    Modint operator -() { return Modint(-val); } // 単項
    Modint operator +(const Modint &r) { return Modint(*this) += r; }
    Modint operator +(const int &q) { Modint r(q); return Modint(*this) += r; }
    Modint operator -(const Modint &r) { return Modint(*this) -= r; }
    Modint operator -(const int &q) { Modint r(q); return Modint(*this) -= r; }
    Modint operator *(const Modint &r) { return Modint(*this) *= r; }
    Modint operator *(const int &q) { Modint r(q); return Modint(*this) *= r; }
    Modint operator /(const Modint &r) { return Modint(*this) /= r; }
    Modint operator /(const int &q) { Modint r(q); return Modint(*this) /= r; }
    
    Modint& operator ++() { val++; if (val >= mod) val -= mod; return *this; } // 前置
    Modint operator ++(signed) { ++*this; return *this; } // 後置
    Modint& operator --() { val--; if (val < 0) val += mod; return *this; }
    Modint operator --(signed) { --*this; return *this; }
    Modint &operator +=(const Modint &r) { val += r.val; if (val >= mod) val -= mod; return *this; }
    Modint &operator +=(const int &q) { Modint r(q); val += r.val; if (val >= mod) val -= mod; return *this; }
    Modint &operator -=(const Modint &r) { if (val < r.val) val += mod; val -= r.val; return *this; }
    Modint &operator -=(const int &q) { Modint r(q);  if (val < r.val) val += mod; val -= r.val; return *this; }
    Modint &operator *=(const Modint &r) { val = val * r.val % mod; return *this; }
    Modint &operator *=(const int &q) { Modint r(q); val = val * r.val % mod; return *this; }
    Modint &operator /=(const Modint &r) {
        int a = r.val, b = mod, u = 1, v = 0;
        while (b) {int t = a / b; a -= t * b; swap(a, b); u -= t * v; swap(u, v);}
        val = val * u % mod; if (val < 0) val += mod;
        return *this;
    }
    Modint &operator /=(const int &q) {
        Modint r(q); int a = r.val, b = mod, u = 1, v = 0;
        while (b) {int t = a / b; a -= t * b; swap(a, b); u -= t * v; swap(u, v);}
        val = val * u % mod; if (val < 0) val += mod;
        return *this;
    }

    bool operator ==(const Modint& r) { return this -> val == r.val; }
    bool operator <(const Modint& r) { return this -> val < r.val; }
    bool operator !=(const Modint& r) { return this -> val != r.val; }
};

using mint = Modint<MOD>;

istream &operator >>(istream &is, mint& x) {
    int t; is >> t;
    x = t;
    return (is);
}
ostream &operator <<(ostream &os, const mint& x) {
    return os << x.val;
}
mint modpow(const mint &x, int n) {
    if (n == 0) return 1;
    mint t = modpow(x, n / 2);
    t = t * t;
    if (n & 1) t = t * x;
    return t;
}

int modpow(__int128_t x, int n, int mod) {
    __int128_t ret = 1;
    while (n > 0) {
        if (n % 2 == 1) ret = ret * x % mod;
        x = x * x % mod;
        n /= 2;
    }
    return ret;
}

int modinv(__int128_t x, int mod) {
    if (x == 1) return 1;
    return mod - modinv(mod % x, mod) * (mod / x) % mod;
}

ostream &operator <<(ostream &os, __int128_t value) {
    ostream::sentry s(os);
    if (s) {
        __uint128_t tmp = value < 0 ? -value : value;
        char buffer[128];
        char *d = end(buffer);

        do {
            --d; *d = "0123456789"[tmp % 10];
            tmp /= 10;
        } while (tmp != 0);

        if (value < 0) { d--; *d = '-'; }

        int len = end(buffer) - d;
        if (os.rdbuf()->sputn(d, len) != len) {
            os.setstate(ios_base::badbit);
        }
    }
    return os;
}

vector<mint> fac, finv, Inv;
void COMinit(int N) {
    fac.resize(N + 1);
    finv.resize(N + 1);
    Inv.resize(N + 1);
    fac[0] = fac[1] = 1;
    finv[0] = finv[1] = 1;
    Inv[1] = 1;
    for (int i = 2; i <= N; i++) {
        fac[i] = fac[i-1] * mint(i);
        Inv[i] = -Inv[MOD % i] * mint(MOD / i);
        finv[i] = finv[i - 1] * Inv[i];
    }
}

mint COM(int N, int K) {
    if (N < K) return 0;
    if (N < 0 or K < 0) return 0;
    return fac[N] * finv[K] * finv[N - K];
}

#pragma endregion

struct DynamicBIT {
    int N;            // 配列の要素数(数列の要素数+1)
    gp_hash_table<int, int> bit;  // データの格納先(0-indexed)
    explicit DynamicBIT() = default;
    explicit DynamicBIT(int size) { N = size + 1; }

    void add(int i, int x) {
        i++;
        while (i < N) {
            bit[i] += x;
            i += (i & -i);
        }
    }

    int sum(int i) {
        if (i < 0) return 0;
        int ret = 0;
        while (i > 0) {
            auto it = bit.find(i);
            if (it != bit.end()) ret += it->second;
            i -= (i & -i);
        }
        return ret;
    }

    int sum(int l, int r) { return sum(r) - sum(l); }
    int get(int i) {
        int l = i, r = i + 1;
        return sum(r) - sum(l);
    }
};

signed main() {
    int N, Q;
    cin >> N >> Q;
    DynamicBIT bit(1e9+1);
    for (int i = 0; i < N; i++) {
        int a;
        cin >> a;
        bit.add(a, 1);
    }

    for (int q = 0; q < Q; q++) {
        int l, r;
        cin >> l >> r;
        cout << bit.sum(l, r + 1) << endl;
    }
}
accuracy: 1
time_ms: 900
memory_kb: 77048
final_rank: 18

code_snippet: #include <iostream>
#include <map>
using namespace std;

map<long long int,int> ms;
int main() {
	int n,m;
	cin>>n>>m;
	for(int i=0;i<n;i++){
		long long int x;
		cin>>x;
		if(ms.find(x)!=ms.end()){
			ms[x]+=1;
		}else{
			ms[x]=1;
		}
	}
	int c=0;
	for(map<long long int,int>::iterator it=ms.begin();it!=ms.end();it++){
		c+=(*it).second;
		ms[(*it).first]=c;
	}
	ms[0]=0;
	for(int i=0;i<m;i++){
		long long int l,r;
		cin>>l>>r;
		map<long long int,int>::iterator itl,itr;
		itr=ms.upper_bound(r);
		itr--;
		itl=ms.lower_bound(l);
		if(itl==ms.end()){
			cout<<"0"<<endl;
		}else{
			itl--;
			cout<<(*itr).second-(*itl).second<<endl;
		}
	}
	
	return 0;
}
accuracy: 1
time_ms: 240
memory_kb: 9348
final_rank: 17

code_snippet: #ifdef LOCAL
    #define _GLIBCXX_DEBUG
    #define __clock__
#else
    #pragma GCC optimize("Ofast")
#endif
#include<bits/stdc++.h>
using namespace std;
using ll = long long;
using VI = vector<ll>;
using VV = vector<VI>;
using VS = vector<string>;
using PII = pair<ll, ll>;

// #define INT128 // 必要なら有効化してください
#ifdef INT128
  using LL = __int128;
#endif

// tourist set
template <typename A, typename B>
string to_string(pair<A, B> p);

template <typename A, typename B, typename C>
string to_string(tuple<A, B, C> p);

template <typename A, typename B, typename C, typename D>
string to_string(tuple<A, B, C, D> p);

string to_string(const string& s) {
  return '"' + s + '"';
}

string to_string(const char* s) {
  return to_string((string) s);
}

string to_string(bool b) {
  return (b ? "true" : "false");
}

string to_string(char c){
  string s = {c};
  return s;
}

// LL
#ifdef INT128
// input
istream& operator>>(istream& is, LL& v)
{
    string s;
    is >> s;
    v = 0;
    for (int i = 0; i < (int)s.size(); i++) {
        if (isdigit(s[i])) { v = v * 10 + s[i] - '0'; }
    }
    if (s[0] == '-') { v *= -1; }
    return is;
}
std::ostream &operator<<(std::ostream &dest, LL value) {
  std::ostream::sentry s(dest);
  if (s) {
    LL tmp = value < 0 ? -value : value;
    char buffer[128];
    char *d = std::end(buffer);
    do {
      --d;
      *d = "0123456789"[tmp % 10];
      tmp /= 10;
    } while (tmp != 0);
    if (value < 0) {
      --d;
      *d = '-';
    }
    int len = std::end(buffer) - d;
    if (dest.rdbuf()->sputn(d, len) != len) {
      dest.setstate(std::ios_base::badbit);
    }
  }
  return dest;
}
string to_string(LL v){
  stringstream ss;
  ss << v;
  return ss.str();
}
#endif // LL

string to_string(vector<bool> v) {
  bool first = true;
  string res = "{";
  for (int i = 0; i < static_cast<int>(v.size()); i++) {
    if (!first) {
      res += ", ";
    }
    first = false;
    res += to_string(v[i]);
  }
  res += "}";
  return res;
}

template <size_t N>
string to_string(bitset<N> v) {
  string res = "";
  for (size_t i = 0; i < N; i++) {
    res += static_cast<char>('0' + v[i]);
  }
  return res;
}

template <typename A>
string to_string(A v) {
  bool first = true;
  string res = "{";
  for (const auto &x : v) {
    if (!first) {
      res += ", ";
    }
    first = false;
    res += to_string(x);
  }
  res += "}";
  return res;
}

template <typename A, typename B>
string to_string(pair<A, B> p) {
  return "(" + to_string(p.first) + ", " + to_string(p.second) + ")";
}

template <typename A, typename B, typename C>
string to_string(tuple<A, B, C> p) {
  return "(" + to_string(get<0>(p)) + ", " + to_string(get<1>(p)) + ", " + to_string(get<2>(p)) + ")";
}

template <typename A, typename B, typename C, typename D>
string to_string(tuple<A, B, C, D> p) {
  return "(" + to_string(get<0>(p)) + ", " + to_string(get<1>(p)) + ", " + to_string(get<2>(p)) + ", " + to_string(get<3>(p)) + ")";
}

void debug_out() { cerr << '\n'; }

template <typename Head, typename... Tail>
void debug_out(Head H, Tail... T) {
  cerr << " " << to_string(H);
  debug_out(T...);
}

#ifdef LOCAL
#define debug(...) cerr << "[" << #__VA_ARGS__ << "]:", debug_out(__VA_ARGS__)
#else
#define debug(...) 42
#endif
// tourist set end

template<class T>bool chmax(T &a, const T &b) { if (a<b) { a=b; return 1; } return 0; }
template<class T>bool chmin(T &a, const T &b) { if (b<a) { a=b; return 1; } return 0; }

#define FOR(i,a,b) for(ll i=(a);i<(b);++i)
#define rep(i,b) FOR(i, 0, b)
#define ALL(v) (v).begin(), (v).end()
#define p(s) cout<<(s)<<'\n'
#define p2(s, t) cout << (s) << " " << (t) << '\n'
#define SZ(x) ((int)(x).size())
#define SORT(A) sort(ALL(A))
#define RSORT(A) sort(ALL(A), greater<ll>())
#define MP make_pair
#define p_yes() p("Yes")
#define p_no() p("No")
#define p_possible() p("Possible")
#define p_impossible() p("Impossible")
void yes(){p_yes(); exit(0);}
void no(){p_no(); exit(0);}
void possible(){p_possible(); exit(0);}
void impossible(){p_impossible(); exit(0);}

ll SUM(VI& V){
  return accumulate(ALL(V), 0LL);
}

ll MIN(VI& V){return *min_element(ALL(V));}
ll MAX(VI& V){return *max_element(ALL(V));}

void print_vector(VI& V, ll offset=0){
  ll n = V.size();
  rep(i, n){
    if(i) cout << ' ';
    cout << V[i]+offset;
  }
  cout << endl;
}

ll gcd(ll a,ll b){
    if(b == 0) return a;
    return gcd(b,a%b);
}

ll lcm(ll a,ll b){
    ll g = gcd(a,b);
    return a / g * b;
}

// long double
using ld = long double;
// #define EPS (1e-14)
constexpr ld EPS = 1e-14;
// #define equals(a,b) (fabs((a)-(b)) < EPS)
constexpr bool equals(ld a, ld b){return fabs((a)-(b)) < EPS;}

// 小さい順に取り出すpriority queue
using inverse_priority_queue = priority_queue<ll, vector<ll>, greater<ll> >;

int popcount(ll t){
    return __builtin_popcountll(t);
}

const ll mod = 1e9 + 7;
// const ll mod = 998244353;
const ll inf = 4e18; // LLONG_MAX = 9223372036854775807 (atcoder, codeforces)
const double PI = acos(-1);

// [a/b] (繰り上げ)
ll ceil_div(ll a, ll b){
  return (a+b-1)/b;
}

ll ll_pow(ll a, ll n){
    ll ans = 1;
    FOR(i, 0, n){
        ans *= a;
    }
    return ans;
}
// modなし

// snuke's mint
// auto mod int
// https://youtu.be/L8grWxBlIZ4?t=9858
// https://youtu.be/ERZuLAxZffQ?t=4807 : optimize
// https://youtu.be/8uowVvQ_-Mo?t=1329 : division
// const int mod = 1000000007;
struct mint {
  ll x; // using ll = long long;
  mint(ll x=0):x((x%mod+mod)%mod){}
  mint operator-() const { return mint(-x);}
  mint& operator+=(const mint a) {
    if ((x += a.x) >= mod) x -= mod;
    return *this;
  }
  mint& operator-=(const mint a) {
    if ((x += mod-a.x) >= mod) x -= mod;
    return *this;
  }
  mint& operator*=(const mint a) {
    (x *= a.x) %= mod;
    return *this;
  }
  mint operator+(const mint a) const {
    mint res(*this);
    return res+=a;
  }
  mint operator-(const mint a) const {
    mint res(*this);
    return res-=a;
  }
  mint operator*(const mint a) const {
    mint res(*this);
    return res*=a;
  }
  mint pow(ll t) const {
    if (!t) return 1;
    mint a = pow(t>>1);
    a *= a;
    if (t&1) a *= *this;
    return a;
  }

  // for prime mod
  mint inv() const {
    return pow(mod-2);
  }
  mint& operator/=(const mint a) {
    return (*this) *= a.inv();
  }
  mint operator/(const mint a) const {
    mint res(*this);
    return res/=a;
  }
};

// ※双方向
// N : 頂点数
// M : 辺数
// return vector<vector<ll>>
VV load_graph(ll N, ll M){
  VV G(N);
  rep(i,M){
    ll a,b;cin>>a>>b;
    a--;b--;
    G[a].push_back(b);
    G[b].push_back(a);
  }
  return G;
}
VV load_tree(ll N){
  return load_graph(N, N-1);
}

VI loadV(ll N){
  VI A(N);
  rep(i,N)cin>>A[i];
  return A;
}

//#include <atcoder/dsu>
//using namespace atcoder; // 忘れがち

int main(){
    cin.tie(0);
    ios::sync_with_stdio(false);

    // input
    ll N,Q;
    cin>>N>>Q;
    
    VI A = loadV(N);
    SORT(A);

    while(Q--){
      ll l,r;cin>>l>>r;
      auto it = lower_bound(ALL(A),l);
      auto it2 = upper_bound(ALL(A),r);
      ll num = it2-it;
      p(num);
    }

    return 0;
}
accuracy: 1
time_ms: 40
memory_kb: 3748
final_rank: 4

code_snippet: #include <bits/stdc++.h>
using namespace std;

struct iofast_t {
    iofast_t() {
        ios::sync_with_stdio(false);
        cin.tie(nullptr);
    }
} iofast;

struct uns_t {} uns;
template <typename Element, typename Head, typename ...Args>
auto vec(Element init, Head arg, Args ...args) {
    if constexpr (sizeof...(Args) == 0) return std::vector(arg, init);
    else return std::vector(arg, vec(init, args...));
}
template <typename Element, typename Head, typename ...Args>
auto vec(uns_t, Head arg, Args ...args) {
    return vec(Element(), arg, args...);
}

template <typename T, typename Compare = less<T>>
T &chmin(T &l, T r, Compare &&f = less<T>()) { return l = min(l, r, f); }
template <typename T, typename Compare = less<T>>
T &chmax(T &l, T r, Compare &&f = less<T>()) { return l = max(l, r, f); }

int main() {
    int n, q; cin >> n >> q;
    auto a = vec<int>(uns, n);
    for (auto &e : a) cin >> e;
    sort(begin(a), end(a));

    while (q--) {
        int l, r; cin >> l >> r;

        auto first = lower_bound(begin(a), end(a), l);
        auto last = upper_bound(begin(a), end(a), r);

        cout << distance(first, last) << endl;
    }
}
accuracy: 1
time_ms: 100
memory_kb: 3604
final_rank: 7

code_snippet: #include <bits/stdc++.h>
using namespace std;
#define rep(i, n)  for(long long i=0;i<(long long)(n);i++)
#define REP(i,k,n) for(long long i=k;i<(long long)(n);i++)
#define all(a) a.begin(),a.end()
#define rsort(a) {sort(all(a));reverse(all(a));}
#define pb emplace_back
#define eb emplace_back
#define lb(v,k) (lower_bound(all(v),(k))-v.begin())
#define ub(v,k) (upper_bound(all(v),(k))-v.begin())
#define fi first
#define se second
#define pi M_PI
#define PQ(T) priority_queue<T>
#define SPQ(T) priority_queue<T,vector<T>,greater<T>>
#define dame(a) {out(a);return 0;}
#define decimal cout<<fixed<<setprecision(15);
#define dupli(a) {sort(all(a));a.erase(unique(all(a)),a.end());}
typedef long long ll;
typedef pair<ll,ll> P;
typedef tuple<ll,ll,ll> PP;
typedef tuple<ll,ll,ll,ll> PPP;
typedef multiset<ll> S;
using vi=vector<ll>;
using vvi=vector<vi>;
using vvvi=vector<vvi>;
using vvvvi=vector<vvvi>;
using vp=vector<P>;
using vvp=vector<vp>;
using vb=vector<bool>;
using vvb=vector<vb>;
const ll inf=1001001001001001001;
const ll INF=1001001001;
const ll mod=1000000007;
const double eps=1e-10;
template<class T> bool chmin(T&a,T b){if(a>b){a=b;return true;}return false;}
template<class T> bool chmax(T&a,T b){if(a<b){a=b;return true;}return false;}
template<class T> void out(T a){cout<<a<<'\n';}
template<class T> void outp(T a){cout<<'('<<a.fi<<','<<a.se<<')'<<'\n';}
template<class T> void outvp(T v){rep(i,v.size())cout<<'('<<v[i].fi<<','<<v[i].se<<')';cout<<'\n';}
template<class T> void outvvp(T v){rep(i,v.size())outvp(v[i]);}
template<class T> void outv(T v){rep(i,v.size()){if(i)cout<<' ';cout<<v[i];}cout<<'\n';}
template<class T> void outvv(T v){rep(i,v.size())outv(v[i]);}
template<class T> bool isin(T x,T l,T r){return (l)<=(x)&&(x)<=(r);}
template<class T> void yesno(T b){if(b)out("yes");else out("no");}
template<class T> void YesNo(T b){if(b)out("Yes");else out("No");}
template<class T> void YESNO(T b){if(b)out("YES");else out("NO");}
template<class T> void noyes(T b){if(b)out("no");else out("yes");}
template<class T> void NoYes(T b){if(b)out("No");else out("Yes");}
template<class T> void NOYES(T b){if(b)out("NO");else out("YES");}
void outs(ll a,ll b){if(a>=inf-100)out(b);else out(a);}
ll gcd(ll a,ll b){if(b==0)return a;return gcd(b,a%b);}
ll modpow(ll a,ll b){ll res=1;a%=mod;while(b){if(b&1)res=res*a%mod;a=a*a%mod;b>>=1;}return res;}
int main(){
    ll n,q;cin>>n>>q;
    vi v(n);rep(i,n)cin>>v[i];
    sort(all(v));
    rep(i,q){
        ll l,r;cin>>l>>r;
        out(lb(v,r+1)-lb(v,l));
    }
}
accuracy: 1
time_ms: 190
memory_kb: 3528
final_rank: 15

code_snippet: #line 2 "/home/yuruhiya/programming/library/template/template.cpp"
#include <bits/stdc++.h>
#line 4 "/home/yuruhiya/programming/library/template/constants.cpp"
#include <string_view>
#line 7 "/home/yuruhiya/programming/library/template/constants.cpp"

#define rep(i, n) for (int i = 0; i < (n); ++i)
#define FOR(i, m, n) for (int i = (m); i < (n); ++i)
#define rrep(i, n) for (int i = (n)-1; i >= 0; --i)
#define rfor(i, m, n) for (int i = (m); i >= (n); --i)
#define unless(c) if (!(c))
#define all(x) (x).begin(), (x).end()
#define rall(x) (x).rbegin(), (x).rend()
#define range_it(a, l, r) (a).begin() + (l), (a).begin() + (r)

using namespace std;
using ll = long long;
using LD = long double;
using VB = vector<bool>;
using VVB = vector<VB>;
using VI = vector<int>;
using VVI = vector<VI>;
using VL = vector<ll>;
using VVL = vector<VL>;
using VS = vector<string>;
using VD = vector<LD>;
using PII = pair<int, int>;
using VP = vector<PII>;
using PLL = pair<ll, ll>;
using VPL = vector<PLL>;
template <class T> using PQ = priority_queue<T>;
template <class T> using PQS = priority_queue<T, vector<T>, greater<T>>;
constexpr int inf = 1000000000;
constexpr long long inf_ll = 1000000000000000000ll, MOD = 1000000007;
constexpr long double PI = 3.14159265358979323846, EPS = 1e-12;
namespace CharacterClass {
	constexpr string_view
	    digit = "0123456789",
	    xdigit = "0123456789ABCDEFabcdef", lower = "abcdefghijklmnopqrstuvwxyz",
	    upper = "ABCDEFGHIJKLMNOPQRSTUVWXYZ",
	    alpha = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz",
	    alnum = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz",
	    word = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ_abcdefghijklmnopqrstuvwxyz",
	    punct = R"(!"#$%&'()*+,-./:;<=>?@[\]^_`{|}~)",
	    graph =
	        R"(!"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~)",
	    print =
	        R"( !"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~)",
	    blank = " \t", space = " \t\n\r\f\v";
}  // namespace CharacterClass
#line 7 "/home/yuruhiya/programming/library/template/Input.cpp"
using namespace std;

#ifdef _WIN32
#define getchar_unlocked _getchar_nolock
#define putchar_unlocked _putchar_nolock
#define fwrite_unlocked fwrite
#define fflush_unlocked fflush
#endif
class Scanner {
	static int gc() {
		return getchar_unlocked();
	}
	static char next_char() {
		char c;
		read(c);
		return c;
	}
	template <class T> static void read(T& v) {
		cin >> v;
	}
	static void read(char& v) {
		while (isspace(v = gc()))
			;
	}
	static void read(bool& v) {
		v = next_char() != '0';
	}
	static void read(string& v) {
		v.clear();
		for (char c = next_char(); !isspace(c); c = gc()) v += c;
	}
	static void read(int& v) {
		v = 0;
		bool neg = false;
		char c = next_char();
		if (c == '-') {
			neg = true;
			c = gc();
		}
		for (; isdigit(c); c = gc()) v = v * 10 + (c - '0');
		if (neg) v = -v;
	}
	static void read(long long& v) {
		v = 0;
		bool neg = false;
		char c = next_char();
		if (c == '-') {
			neg = true;
			c = gc();
		}
		for (; isdigit(c); c = gc()) v = v * 10 + (c - '0');
		if (neg) v = -v;
	}
	static void read(double& v) {
		v = 0;
		double dp = 1;
		bool neg = false, after_dp = false;
		char c = next_char();
		if (c == '-') {
			neg = true;
			c = gc();
		}
		for (; isdigit(c) || c == '.'; c = gc()) {
			if (c == '.') {
				after_dp = true;
			} else if (after_dp) {
				v += (c - '0') * (dp *= 0.1);
			} else {
				v = v * 10 + (c - '0');
			}
		}
		if (neg) v = -v;
	}
	static void read(long double& v) {
		v = 0;
		long double dp = 1;
		bool neg = false, after_dp = false;
		char c = next_char();
		if (c == '-') {
			neg = true;
			c = gc();
		}
		for (; isdigit(c) || c == '.'; c = gc()) {
			if (c == '.') {
				after_dp = true;
			} else if (after_dp) {
				v += (c - '0') * (dp *= 0.1);
			} else {
				v = v * 10 + (c - '0');
			}
		}
		if (neg) v = -v;
	}
	template <class T, class U> static void read(pair<T, U>& v) {
		read(v.first);
		read(v.second);
	}
	template <class T> static void read(vector<T>& v) {
		for (auto& e : v) read(e);
	}
	template <size_t N = 0, class T> static void read_tuple_impl(T& v) {
		if constexpr (N < tuple_size_v<T>) {
			read(get<N>(v));
			read_tuple_impl<N + 1>(v);
		}
	}
	template <class... T> static void read(tuple<T...>& v) {
		read_tuple_impl(v);
	}
	struct ReadVectorHelper {
		size_t n;
		ReadVectorHelper(size_t _n) : n(_n) {}
		template <class T> operator vector<T>() {
			vector<T> v(n);
			read(v);
			return v;
		}
	};
	struct Read2DVectorHelper {
		size_t n, m;
		Read2DVectorHelper(const pair<size_t, size_t>& nm) : n(nm.first), m(nm.second) {}
		template <class T> operator vector<vector<T>>() {
			vector<vector<T>> v(n, vector<T>(m));
			read(v);
			return v;
		}
	};

public:
	string read_line() const {
		string v;
		for (char c = gc(); c != '\n' && c != '\0'; c = gc()) v += c;
		return v;
	}
	template <class T> T read() const {
		T v;
		read(v);
		return v;
	}
	template <class T> vector<T> read_vector(size_t n) const {
		vector<T> a(n);
		read(a);
		return a;
	}
	template <class T> operator T() const {
		return read<T>();
	}
	int operator--(int) const {
		return read<int>() - 1;
	}
	ReadVectorHelper operator[](size_t n) const {
		return ReadVectorHelper(n);
	}
	Read2DVectorHelper operator[](const pair<size_t, size_t>& nm) const {
		return Read2DVectorHelper(nm);
	}
	void operator()() const {}
	template <class H, class... T> void operator()(H&& h, T&&... t) const {
		read(h);
		operator()(forward<T>(t)...);
	}

private:
	template <template <class...> class, class...> struct Multiple;
	template <template <class...> class V, class Head, class... Tail>
	struct Multiple<V, Head, Tail...> {
		template <class... Args> using vec = V<vector<Head>, Args...>;
		using type = typename Multiple<vec, Tail...>::type;
	};
	template <template <class...> class V> struct Multiple<V> { using type = V<>; };
	template <class... T> using multiple_t = typename Multiple<tuple, T...>::type;
	template <size_t N = 0, class T> void multiple_impl(T& t) const {
		if constexpr (N < tuple_size_v<T>) {
			auto& vec = get<N>(t);
			using V = typename remove_reference_t<decltype(vec)>::value_type;
			vec.push_back(read<V>());
			multiple_impl<N + 1>(t);
		}
	}

public:
	template <class... T> auto multiple(size_t h) const {
		multiple_t<T...> result;
		while (h--) multiple_impl(result);
		return result;
	}
} in;
#define inputs(T, ...) \
	T __VA_ARGS__;     \
	in(__VA_ARGS__)
#define ini(...) inputs(int, __VA_ARGS__)
#define inl(...) inputs(long long, __VA_ARGS__)
#define ins(...) inputs(string, __VA_ARGS__)
#line 7 "/home/yuruhiya/programming/library/template/Output.cpp"
#include <charconv>
#line 10 "/home/yuruhiya/programming/library/template/Output.cpp"
using namespace std;

struct BoolStr {
	const char *t, *f;
	BoolStr(const char* _t, const char* _f) : t(_t), f(_f) {}
} Yes("Yes", "No"), yes("yes", "no"), YES("YES", "NO"), Int("1", "0");
struct DivStr {
	const char *d, *l;
	DivStr(const char* _d, const char* _l) : d(_d), l(_l) {}
} spc(" ", "\n"), no_spc("", "\n"), end_line("\n", "\n"), comma(",", "\n"),
    no_endl(" ", "");
class Output {
	BoolStr B{Yes};
	DivStr D{spc};

public:
	void put(int v) const {
		char buf[12]{};
		if (auto [ptr, e] = to_chars(begin(buf), end(buf), v); e == errc{}) {
			fwrite(buf, sizeof(char), ptr - buf, stdout);
		} else {
			assert(false);
		}
	}
	void put(long long v) const {
		char buf[21]{};
		if (auto [ptr, e] = to_chars(begin(buf), end(buf), v); e == errc{}) {
			fwrite(buf, sizeof(char), ptr - buf, stdout);
		} else {
			assert(false);
		}
	}
	void put(bool v) const {
		put(v ? B.t : B.f);
	}
	void put(vector<bool>::reference v) const {
		put(v ? B.t : B.f);
	}
	void put(char v) const {
		putchar_unlocked(v);
	}
	void put(const char* v) const {
		fwrite_unlocked(v, 1, strlen(v), stdout);
	}
	void put(double v) const {
		printf("%.20f", v);
	}
	void put(long double v) const {
		printf("%.20Lf", v);
	}
	template <class T> void put(const T& v) const {
		cout << v;
	}
	template <class T, class U> void put(const pair<T, U>& v) const {
		put(v.first);
		put(D.d);
		put(v.second);
	}
	template <class InputIterater>
	void put_range(const InputIterater& begin, const InputIterater& end) const {
		for (InputIterater i = begin; i != end; ++i) {
			if (i != begin) put(D.d);
			put(*i);
		}
	}
	template <class T> void put(const vector<T>& v) const {
		put_range(v.begin(), v.end());
	}
	template <class T, size_t N> void put(const array<T, N>& v) const {
		put_range(v.begin(), v.end());
	}
	template <class T> void put(const vector<vector<T>>& v) const {
		for (size_t i = 0; i < v.size(); ++i) {
			if (i) put(D.l);
			put(v[i]);
		}
	}

	Output() = default;
	Output(const BoolStr& _boolstr, const DivStr& _divstr) : B(_boolstr), D(_divstr) {}
	Output& operator()() {
		put(D.l);
		return *this;
	}
	template <class H> Output& operator()(H&& h) {
		put(h);
		put(D.l);
		return *this;
	}
	template <class H, class... T> Output& operator()(H&& h, T&&... t) {
		put(h);
		put(D.d);
		return operator()(forward<T>(t)...);
	}
	template <class InputIterator>
	Output& range(const InputIterator& begin, const InputIterator& end) {
		put_range(begin, end);
		put(D.l);
		return *this;
	}
	template <class T> Output& range(const T& a) {
		range(a.begin(), a.end());
		return *this;
	}
	template <class... T> void exit(T&&... t) {
		operator()(forward<T>(t)...);
		std::exit(EXIT_SUCCESS);
	}
	Output& flush() {
		fflush_unlocked(stdout);
		return *this;
	}
	Output& set(const BoolStr& b) {
		B = b;
		return *this;
	}
	Output& set(const DivStr& d) {
		D = d;
		return *this;
	}
	Output& set(const char* t, const char* f) {
		B = BoolStr(t, f);
		return *this;
	}
} out;
#line 3 "/home/yuruhiya/programming/library/template/Step.cpp"
using namespace std;

template <class T> struct Step {
	using value_type = T;

	class iterator {
		value_type a, b, c;

	public:
		constexpr iterator() : a(value_type()), b(value_type()), c(value_type()) {}
		constexpr iterator(value_type _b, value_type _c, value_type _s)
		    : a(_b), b(_c), c(_s) {}
		constexpr iterator& operator++() {
			--b;
			a += c;
			return *this;
		}
		constexpr iterator operator++(int) {
			iterator tmp = *this;
			--b;
			a += c;
			return tmp;
		}
		constexpr const value_type& operator*() const {
			return a;
		}
		constexpr const value_type* operator->() const {
			return &a;
		}
		constexpr bool operator==(const iterator& i) const {
			return b == i.b;
		}
		constexpr bool operator!=(const iterator& i) const {
			return !(b == i.b);
		}
		constexpr value_type start() const {
			return a;
		}
		constexpr value_type size() const {
			return b;
		}
		constexpr value_type step() const {
			return c;
		}
	};
	constexpr Step(value_type b, value_type c, value_type s) : be(b, c, s) {}
	constexpr iterator begin() const {
		return be;
	}
	constexpr iterator end() const {
		return en;
	}
	constexpr value_type start() const {
		return be.start();
	}
	constexpr value_type size() const {
		return be.size();
	}
	constexpr value_type step() const {
		return be.step();
	}
	constexpr value_type sum() const {
		return start() * size() + step() * (size() * (size() - 1) / 2);
	}
	operator vector<value_type>() const {
		return to_a();
	}
	auto to_a() const {
		vector<value_type> result;
		result.reserve(size());
		for (auto i : *this) {
			result.push_back(i);
		}
		return result;
	}

private:
	iterator be, en;
};
template <class T> constexpr auto step(T a) {
	return Step<T>(0, a, 1);
}
template <class T> constexpr auto step(T a, T b) {
	return Step<T>(a, b - a, 1);
}
template <class T> constexpr auto step(T a, T b, T c) {
	return Step<T>(a, a < b ? (b - a - 1) / c + 1 : 0, c);
}
#line 8 "/home/yuruhiya/programming/library/template/Ruby.cpp"
using namespace std;

template <class F> struct Callable {
	F func;
	Callable(const F& f) : func(f) {}
};
template <class T, class F> auto operator|(const T& v, const Callable<F>& c) {
	return c.func(v);
}

struct Sort_impl {
	template <class F> auto operator()(F&& f) {
		return Callable([&](auto v) {
			sort(begin(v), end(v), f);
			return v;
		});
	}
	template <class T> friend auto operator|(T v, [[maybe_unused]] const Sort_impl& c) {
		sort(begin(v), end(v));
		return v;
	}
} Sort;
struct SortBy_impl {
	template <class F> auto operator()(F&& f) {
		return Callable([&](auto v) {
			sort(begin(v), end(v),
			     [&](const auto& i, const auto& j) { return f(i) < f(j); });
			return v;
		});
	}
} SortBy;
struct RSort_impl {
	template <class F> auto operator()(F&& f) {
		return Callable([&](auto v) {
			sort(rbegin(v), rend(v), f);
			return v;
		});
	}
	template <class T> friend auto operator|(T v, [[maybe_unused]] const RSort_impl& c) {
		sort(rbegin(v), rend(v));
		return v;
	}
} RSort;
struct RSortBy_impl {
	template <class F> auto operator()(F&& f) {
		return Callable([&](auto v) {
			sort(begin(v), end(v),
			     [&](const auto& i, const auto& j) { return f(i) > f(j); });
			return v;
		});
	}
} RSortBy;
struct Reverse_impl {
	template <class T> friend auto operator|(T v, const Reverse_impl& c) {
		reverse(begin(v), end(v));
		return v;
	}
} Reverse;
struct Unique_impl {
	template <class T> friend auto operator|(T v, const Unique_impl& c) {
		v.erase(unique(begin(v), end(v), end(v)));
		return v;
	}
} Unique;
struct Uniq_impl {
	template <class T> friend auto operator|(T v, const Uniq_impl& c) {
		sort(begin(v), end(v));
		v.erase(unique(begin(v), end(v)), end(v));
		return v;
	}
} Uniq;
struct Rotate_impl {
	auto operator()(int&& left) {
		return Callable([&](auto v) {
			int s = static_cast<int>(size(v));
			assert(-s <= left && left <= s);
			if (0 <= left) {
				rotate(begin(v), begin(v) + left, end(v));
			} else {
				rotate(begin(v), end(v) + left, end(v));
			}
			return v;
		});
	}
} Rotate;
struct Max_impl {
	template <class F> auto operator()(F&& f) {
		return Callable([&](auto v) { return *max_element(begin(v), end(v), f); });
	}
	template <class T> friend auto operator|(T v, const Max_impl& c) {
		return *max_element(begin(v), end(v));
	}
} Max;
struct Min_impl {
	template <class F> auto operator()(F&& f) {
		return Callable([&](auto v) { return *min_element(begin(v), end(v), f); });
	}
	template <class T> friend auto operator|(T v, const Min_impl& c) {
		return *min_element(begin(v), end(v));
	}
} Min;
struct MaxPos_impl {
	template <class T> friend auto operator|(T v, const MaxPos_impl& c) {
		return max_element(begin(v), end(v)) - begin(v);
	}
} MaxPos;
struct MinPos_impl {
	template <class T> friend auto operator|(T v, const MinPos_impl& c) {
		return min_element(begin(v), end(v)) - begin(v);
	}
} MinPos;
struct MaxBy_impl {
	template <class F> auto operator()(F&& f) {
		return Callable([&](auto v) {
			auto max_it = begin(v);
			auto max_val = f(*max_it);
			for (auto it = next(begin(v)); it != end(v); ++it) {
				if (auto val = f(*it); max_val < val) {
					max_it = it;
					max_val = val;
				}
			}
			return *max_it;
		});
	}
} MaxBy;
struct MinBy_impl {
	template <class F> auto operator()(F&& f) {
		return Callable([&](auto v) {
			auto min_it = begin(v);
			auto min_val = f(*min_it);
			for (auto it = next(begin(v)); it != end(v); ++it) {
				if (auto val = f(*it); min_val > val) {
					min_it = it;
					min_val = val;
				}
			}
			return *min_it;
		});
	}
} MinBy;
struct MaxOf_impl {
	template <class F> auto operator()(F&& f) {
		return Callable([&](auto v) {
			auto max_val = f(*begin(v));
			for (auto it = next(begin(v)); it != end(v); ++it) {
				if (auto val = f(*it); max_val < val) {
					max_val = val;
				}
			}
			return max_val;
		});
	}
} MaxOf;
struct MinOf_impl {
	template <class F> auto operator()(F&& f) {
		return Callable([&](auto v) {
			auto min_val = f(*begin(v));
			for (auto it = next(begin(v)); it != end(v); ++it) {
				if (auto val = f(*it); min_val > val) {
					min_val = val;
				}
			}
			return min_val;
		});
	}
} MinOf;
struct Count_impl {
	template <class V> auto operator()(const V& val) {
		return Callable([&](auto v) { return count(begin(v), end(v), val); });
	}
} Count;
struct CountIf_impl {
	template <class F> auto operator()(const F& f) {
		return Callable([&](auto v) { return count_if(begin(v), end(v), f); });
	}
} CountIf;
struct Index_impl {
	template <class V> auto operator()(const V& val) {
		return Callable([&](auto v) -> optional<int> {
			auto result = find(begin(v), end(v), val);
			return result != end(v) ? optional(result - begin(v)) : nullopt;
		});
	}
} Index;
struct IndexIf_impl {
	template <class F> auto operator()(const F& f) {
		return Callable([&](auto v) -> optional<int> {
			auto result = find_if(begin(v), end(v), f);
			return result != end(v) ? optional(result - begin(v)) : nullopt;
		});
	}
} IndexIf;
struct FindIf_impl {
	template <class F> auto operator()(const F& f) {
		return Callable([&](auto v) -> optional<typename decltype(v)::value_type> {
			auto result = find_if(begin(v), end(v), f);
			return result != end(v) ? optional(*result) : nullopt;
		});
	}
} FindIf;
struct Sum_impl {
	template <class F> auto operator()(F&& f) {
		return Callable([&](auto v) {
			return accumulate(next(begin(v)), end(v), f(*begin(v)),
			                  [&](const auto& a, const auto& b) { return a + f(b); });
		});
	}
	template <class T> friend auto operator|(T v, const Sum_impl& c) {
		return accumulate(begin(v), end(v), typename T::value_type{});
	}
} Sum;
struct Includes {
	template <class V> auto operator()(const V& val) {
		return Callable([&](auto v) { return find(begin(v), end(v), val) != end(v); });
	}
} Includes;
struct IncludesIf_impl {
	template <class F> auto operator()(const F& f) {
		return Callable([&](auto v) { return find_if(begin(v), end(v), f) != end(v); });
	}
} IncludesIf;
struct RemoveIf_impl {
	template <class F> auto operator()(const F& f) {
		return Callable([&](auto v) {
			v.erase(remove_if(begin(v), end(v), f), end(v));
			return v;
		});
	}
} RemoveIf;
struct Each_impl {
	template <class F> auto operator()(F&& f) {
		return Callable([&](auto v) {
			for (const auto& i : v) {
				f(i);
			}
		});
	}
} Each;
struct Select_impl {
	template <class F> auto operator()(F&& f) {
		return Callable([&](auto v) {
			using value_type = typename decltype(v)::value_type;
			vector<value_type> result;
			for (const auto& i : v) {
				if (f(i)) result.push_back(i);
			}
			return result;
		});
	}
} Select;
struct Map_impl {
	template <class F> auto operator()(F&& f) {
		return Callable([&](auto v) {
			using result_type = invoke_result_t<F, typename decltype(v)::value_type>;
			vector<result_type> result;
			result.reserve(size(v));
			for (const auto& i : v) {
				result.push_back(f(i));
			}
			return result;
		});
	}
} Map;
struct Indexed_impl {
	template <class T> friend auto operator|(const T& v, Indexed_impl& c) {
		using value_type = typename T::value_type;
		vector<pair<value_type, int>> result;
		result.reserve(size(v));
		int index = 0;
		for (const auto& i : v) {
			result.emplace_back(i, index++);
		}
		return result;
	}
} Indexed;
struct AllOf_impl {
	template <class F> auto operator()(F&& f) {
		return Callable([&](auto v) {
			for (const auto& i : v) {
				if (!f(i)) return false;
			}
			return true;
		});
	}
} AllOf;
struct AnyOf_impl {
	template <class F> auto operator()(F&& f) {
		return Callable([&](auto v) {
			for (const auto& i : v) {
				if (f(i)) return true;
			}
			return false;
		});
	}
} AnyOf;
struct NoneOf_impl {
	template <class F> auto operator()(F&& f) {
		return Callable([&](auto v) {
			for (const auto& i : v) {
				if (f(i)) return false;
			}
			return true;
		});
	}
} NoneOf;

struct Tally_impl {
	template <class F> auto operator()(size_t max_val) {
		return Callable([&](auto v) {
			vector<size_t> result(max_val);
			for (const auto& i : v) {
				result[static_cast<size_t>(i)]++;
			}
			return result;
		});
	}
	template <class T, class value_type = typename T::value_type>
	friend auto operator|(const T& v, Tally_impl& c) {
		map<value_type, size_t> result;
		for (const auto& i : v) {
			result[i]++;
		}
		return result;
	}
} Tally;

template <class T> auto operator*(const vector<T>& a, size_t n) {
	T result;
	for (size_t i = 0; i < n; ++i) {
		result.insert(result.end(), a.begin(), a.end());
	}
	return result;
}
auto operator*(string a, size_t n) {
	string result;
	for (size_t i = 0; i < n; ++i) {
		result += a;
	}
	return result;
}
template <class T, class U> auto& operator<<(vector<T>& a, const U& b) {
	a.insert(a.end(), all(b));
	return a;
}
template <class T> auto& operator<<(string& a, const T& b) {
	a.insert(a.end(), all(b));
	return a;
}
template <class T, class U> auto operator+(vector<T> a, const U& b) {
	a << b;
	return a;
}
template <class T> auto operator+(string a, const T& b) {
	a << b;
	return a;
}
#line 7 "/home/yuruhiya/programming/library/template/functions.cpp"
using namespace std;

template <class T = long long> constexpr T TEN(size_t n) {
	T result = 1;
	for (size_t i = 0; i < n; ++i) result *= 10;
	return result;
}
template <class T, class U,
          enable_if_t<is_integral_v<T> && is_integral_v<U>, nullptr_t> = nullptr>
constexpr auto div_ceil(T n, U m) {
	return (n + m - 1) / m;
}
template <class T, class U> constexpr auto div_ceil2(T n, U m) {
	return div_ceil(n, m) * m;
}
template <class T> constexpr T triangle(T n) {
	return (n & 1) ? (n + 1) / 2 * n : n / 2 * (n + 1);
}
template <class T> constexpr T nC2(T n) {
	return (n & 1) ? (n - 1) / 2 * n : n / 2 * (n - 1);
}
template <class T, class U> constexpr auto middle(const T& l, const U& r) {
	return l + (r - l) / 2;
}
template <class T, class U, class V>
constexpr bool in_range(const T& v, const U& lower, const V& upper) {
	return lower <= v && v < upper;
}
template <class T, enable_if_t<is_integral_v<T>, nullptr_t> = nullptr>
constexpr bool is_square(T n) {
	T s = sqrt(n);
	return s * s == n || (s + 1) * (s + 1) == n;
}
template <class T = long long> constexpr T BIT(int b) {
	return T(1) << b;
}
template <class T, class U, enable_if_t<is_integral_v<U>, nullptr_t> = nullptr>
constexpr T Pow(T a, U n) {
	assert(n >= 0);
	T result = 1;
	while (n > 0) {
		if (n & 1) {
			result *= a;
			n--;
		} else {
			a *= a;
			n >>= 1;
		}
	}
	return result;
}
template <class T, class U, enable_if_t<is_integral_v<U>, nullptr_t> = nullptr>
constexpr T Powmod(T a, U n, T mod) {
	assert(n >= 0);
	if (a > mod) a %= mod;
	T result = 1;
	while (n > 0) {
		if (n & 1) {
			result = result * a % mod;
			n--;
		} else {
			a = a * a % mod;
			n >>= 1;
		}
	}
	return result;
}
template <class T> bool chmax(T& a, const T& b) {
	if (a < b) {
		a = b;
		return true;
	}
	return false;
}
template <class T> bool chmin(T& a, const T& b) {
	if (a > b) {
		a = b;
		return true;
	}
	return false;
}
template <class T> int sz(const T& v) {
	return v.size();
}
template <class T, class U> int lower_index(const T& a, const U& v) {
	return lower_bound(all(a), v) - a.begin();
}
template <class T, class U> int upper_index(const T& a, const U& v) {
	return upper_bound(all(a), v) - a.begin();
}
template <class T> auto Slice(const T& v, size_t i, size_t len) {
	return i < v.size() ? T(v.begin() + i, v.begin() + min(i + len, v.size())) : T();
}
template <class T, class U = typename T::value_type> U Gcdv(const T& v) {
	return accumulate(next(v.begin()), v.end(), U(*v.begin()), gcd<U, U>);
}
template <class T, class U = typename T::value_type> U Lcmv(const T& v) {
	return accumulate(next(v.begin()), v.end(), U(*v.begin()), lcm<U, U>);
}
namespace internal {
	template <class T, size_t N> auto make_vector(vector<int>& sizes, const T& init) {
		if constexpr (N == 1) {
			return vector(sizes[0], init);
		} else {
			int size = sizes[N - 1];
			sizes.pop_back();
			return vector(size, make_vector<T, N - 1>(sizes, init));
		}
	}
}  // namespace internal
template <class T, size_t N>
auto make_vector(const int (&sizes)[N], const T& init = T()) {
	vector s(rbegin(sizes), rend(sizes));
	return internal::make_vector<T, N>(s, init);
}
#line 9 "/home/yuruhiya/programming/library/template/template.cpp"
#if __has_include(<library/dump.hpp>)
#include <library/dump.hpp>
#define LOCAL
#else
#define dump(...) ((void)0)
#endif

template <class T> constexpr T oj_local(const T& oj, const T& local) {
#ifndef LOCAL
	return oj;
#else
	return local;
#endif
}
#line 2 "a.cpp"

int main() {
	ini(n, q);
	VI a = in[n];
	sort(all(a));
	rep(i, q) {
		ini(l, r);
		out(upper_index(a, r) - lower_index(a, l));
	}
}
accuracy: 1
time_ms: 30
memory_kb: 3496
final_rank: 1

code_snippet: /*  -*- coding: utf-8 -*-
 *
 * 3116.cc: Range Count Query
 */

#include<cstdio>
#include<cstdlib>
#include<cstring>
#include<cmath>
#include<iostream>
#include<string>
#include<vector>
#include<map>
#include<set>
#include<stack>
#include<list>
#include<queue>
#include<deque>
#include<algorithm>
#include<numeric>
#include<utility>
#include<complex>
#include<functional>
 
using namespace std;

/* constant */

const int MAX_N = 100000;

/* typedef */

typedef vector<int> vi;
typedef queue<int> qi;
typedef pair<int,int> pii;

/* global variables */

int as[MAX_N], uas[MAX_N];
int cs[MAX_N], css[MAX_N + 1];

/* subroutines */

/* main */

int main() {
  int n, q;
  scanf("%d%d", &n, &q);

  for (int i = 0; i < n; i++) scanf("%d", as + i), uas[i] = as[i];
  sort(uas, uas + n);
  int m = unique(uas, uas + n) - uas;

  for (int i = 0; i < n; i++) {
    int k = lower_bound(uas, uas + m, as[i]) - uas;
    cs[k]++;
  }
  for (int i = 0; i < m; i++) css[i + 1] = css[i] + cs[i];

  while (q--) {
    int l, r;
    scanf("%d%d", &l, &r);

    int li = lower_bound(uas, uas + m, l) - uas;
    int ri = upper_bound(uas, uas + m, r) - uas;
    printf("%d\n", css[ri] - css[li]);
  }
  return 0;
}
accuracy: 1
time_ms: 50
memory_kb: 4816
final_rank: 6

code_snippet: #include <bits//stdc++.h>
using namespace std;
#define rep(i, n) for (int i = 0; i < (int)(n); i++)
#define ALL(obj) obj.begin(), obj.end()
int main(void) {
    int n, q,l,r; cin >> n >> q; vector<int> a(n);
    rep(i, n) cin >> a[i];
    sort(ALL(a));
    rep(i, q) {
        cin >> l >> r;
        cout << upper_bound(ALL(a), r) - lower_bound(ALL(a), l) << endl;
    }
}
accuracy: 1
time_ms: 190
memory_kb: 3168
final_rank: 12

code_snippet: #include <algorithm>
#include <cmath>
#include <cstdio>
#include <deque>
#include <iostream>
#include <map>
#include <numeric>
#include <queue>
#include <set>
#include <stack>
#include <string>
#include <vector>

using namespace std;

typedef long long ll;

#define MOD 1000000007

int main() {
  int n, q;
  cin >> n >> q;
  vector<int> a(n + 1);
  for (int i = 0; i < n; ++i) {
    cin >> a[i];
  }
  a[n] = -1;
  sort(a.begin(), a.end());
  while (q--) {
    int l, r;
    cin >> l >> r;
    int ok = 0, ng = n + 1;
    while (1 < abs(ok - ng)) {
      int mid = (ok + ng) / 2;
      if (a[mid] <= r) {
        ok = mid;
      } else {
        ng = mid;
      }
    }
    int u = ok;
    ok = 0, ng = n + 1;
    while (1 < abs(ok - ng)) {
      int mid = (ok + ng) / 2;
      if (a[mid] <= l - 1) {
        ok = mid;
      } else {
        ng = mid;
      }
    }
    int d = ok;
    cout << u - d << endl;
  }
  return 0;
}
accuracy: 1
time_ms: 190
memory_kb: 3136
final_rank: 10

code_snippet: #include <iostream>
#include <vector>
#include <algorithm>
using namespace std;

int main(){
    int n,q;
    cin >> n >> q;
    vector<int> a(n);
    for(int i=0; i<n; i++){
        cin >> a[i];
    }
    sort(a.begin(), a.end());
    for(int i=0; i<q; i++){
        int l,r;
        cin >> l >> r;
        cout << upper_bound(a.begin(), a.end(), r) -lower_bound(a.begin(), a.end(), l) << endl;
    }
    return 0;
}
accuracy: 1
time_ms: 190
memory_kb: 3152
final_rank: 11

code_snippet: #include <cstdio>
#include <algorithm>
#include <vector>

int main() {
  size_t n, q;
  scanf("%zu %zu", &n, &q);

  std::vector<int> a(n);
  for (auto& ai: a) scanf("%d", &ai);
  std::sort(a.begin(), a.end());

  for (size_t i = 0; i < q; ++i) {
    int l, r;
    scanf("%d %d", &l, &r);
    printf("%td\n", std::upper_bound(a.begin(), a.end(), r) - std::lower_bound(a.begin(), a.end(), l));
  }
}
accuracy: 1
time_ms: 50
memory_kb: 2788
final_rank: 3

code_snippet: #include <iostream>
#include <cstdio>
#include <string>
#include <cstring>
#include <deque>
#include <list>
#include <queue>
#include <stack>
#include <vector>
#include <utility>
#include <algorithm>
#include <map>
#include <set>
#include <complex>
#include <cmath>
#include <limits>
#include <climits>
#include <ctime>
#include <cassert>
#include <numeric>
#include <functional>
#include <bitset>

using namespace std;
using lint = long long int;
long long int INF = 1001001001001001LL;
int inf = 1000000007;
long long int MOD = 1000000007LL;
double PI = 3.1415926535897932;

template<typename T1,typename T2>inline void chmin(T1 &a,const T2 &b){if(a>b) a=b;}
template<typename T1,typename T2>inline void chmax(T1 &a,const T2 &b){if(a<b) a=b;}

#define ALL(a) a.begin(),a.end()
#define RALL(a) a.rbegin(),a.rend()

/* do your best */


int main() {
  
  int n, q; cin >> n >> q;
  vector<int> a(n);
  for (int i = 0; i < n; i++) {
    cin >> a[i];
  }

  sort(ALL(a));

  for (int i = 0; i < q; i++) {
    int l, r; cin >> l >> r;
    auto x = upper_bound(a.begin(), a.end(), r);
    auto y = lower_bound(a.begin(), a.end(), l);
    cout << x - y << endl;
 
  }
  return 0;
}
accuracy: 1
time_ms: 190
memory_kb: 3096
final_rank: 9

code_snippet: #include "bits/stdc++.h"

using namespace std;

using i64 = long long;


struct BitVector{
    vector<uint64_t> v;
    vector<int> r;
    BitVector(){}
    void build(){
        r.assign(v.size() + 1, 0);
        for(int i = 0; i < v.size(); ++i)
            r[i + 1] = r[i] + __builtin_popcountll(v[i]);
    }
    bool access(int x){
        return (v[x >> 6] >> (x & 63)) & 1;
    }
    // [0, x)の1の出現回数
    int rank(int x){
        return r[x >> 6] + __builtin_popcountll(v[x >> 6] & ((1uLL << (x & 63)) - 1));
    }
    int rank(int x, bool fl){
        return fl ? rank(x) : x - rank(x);
    }
};

template <typename T, int W>
struct WaveletMatrix{

    array<BitVector, W> bv;
    array<int, W> zero_cnt;

    WaveletMatrix(vector<T>& a){
        int n = a.size();
        vector<T> v(a);
        for(int i = W - 1; i >= 0; --i){
            vector<uint64_t> b((n >> 6) + 1, 0);
            vector<T> v1, v2;
            for(int j = 0; j < n; ++j){
                ((v[j] >> i) & 1 ? v2 : v1).push_back(v[j]);
                b[j >> 6] |= uint64_t((v[j] >> i) & 1) << (j & 63);
            }
            for(int j = 0; j < v.size(); ++j)
                v[j] = (j < v1.size() ? v1[j] : v2[j - v1.size()]);
            bv[i].v = move(b);
            bv[i].build();
            zero_cnt[i] = bv[i].rank(n, 0);
        }
    }

    // [l, r)内のxの数
    int count(int l, int r, T x){
        for(int i = W - 1; i >= 0; --i){
            bool fl = (x >> i) & 1;
            int st = bv[i].rank(l, fl);
            int en = bv[i].rank(r, fl);
            l = (fl ? zero_cnt[i] : 0) + st;
            r = (fl ? zero_cnt[i] : 0) + en;
        }
        return r - l;
    }

    // [l, r)内で[0, x)を満たす値の数
    int count_lower(int l, int r, T x){
        int cnt = 0;
        for(int i = W - 1; i >= 0; --i){
            bool fl = (x >> i) & 1;
            int st = bv[i].rank(l, fl);
            int en = bv[i].rank(r, fl);
            if(fl){
                st += zero_cnt[i];
                en += zero_cnt[i];
                cnt += (bv[i].rank(r, 0) - bv[i].rank(l, 0));
            }
            l = st, r = en;
        }
        return cnt;
    }

    // [l, r)内で[x, y)を満たす値の数
    int count_range(int l, int r, T x, T y){
        return count_lower(l, r, y) - count_lower(l, r, x);
    }
};


signed main(){

    int n, q;
    cin >> n >> q;
    vector<int> a(n);
    for(int i = 0; i < n; ++i)
        cin >> a[i];
    WaveletMatrix<int, 31> w(a);

    for(int i = 0; i < q; ++i){
        int l, r;
        cin >> l >> r;
        cout << w.count_range(0, n, l, r + 1) << endl;
    }
}
accuracy: 1
time_ms: 260
memory_kb: 5108
final_rank: 16

code_snippet: #include "bits/stdc++.h"

using namespace std;

using i64 = long long;


struct BitVector{
    vector<uint64_t> v, r;
    BitVector(){}
    void build(){
        r.assign(v.size() + 1, 0);
        for(int i = 0; i < v.size(); ++i)
            r[i + 1] = r[i] + __builtin_popcount(v[i]);
    }
    bool access(int x){
        return (v[x >> 6] >> (x & 63)) & 1;
    }
    // [0, x)の1の出現回数
    int rank(int x){
        return r[x >> 6] + __builtin_popcount(v[x >> 6] & ((1uLL << (x & 63)) - 1));
    }
    int rank(int x, bool fl){
        return fl ? rank(x) : x - rank(x);
    }
};

template <typename T, int W>
struct WaveletMatrix{

    array<BitVector, W> bv;
    array<int, W> zero_cnt;

    WaveletMatrix(vector<T>& a){
        int n = a.size();
        vector<T> v(a);
        for(int i = W - 1; i >= 0; --i){
            vector<uint64_t> b((n >> 6) + 1, 0);
            vector<T> v1, v2;
            for(int j = 0; j < n; ++j){
                ((v[j] >> i) & 1 ? v2 : v1).push_back(v[j]);
                b[j >> 6] |= uint64_t((v[j] >> i) & 1) << (j & 63);
            }
            for(int j = 0; j < v.size(); ++j)
                v[j] = (j < v1.size() ? v1[j] : v2[j - v1.size()]);
            bv[i].v = move(b);
            bv[i].build();
            zero_cnt[i] = bv[i].rank(n, 0);
        }
    }

    // [l, r)内のxの数
    int count(int l, int r, T x){
        for(int i = W - 1; i >= 0; --i){
            bool fl = (x >> i) & 1;
            int st = bv[i].rank(l, fl);
            int en = bv[i].rank(r, fl);
            l = (fl ? zero_cnt[i] : 0) + st;
            r = (fl ? zero_cnt[i] : 0) + en;
        }
        return r - l;
    }

    // [l, r)内で[0, x)を満たす値の数
    int count_lower(int l, int r, T x){
        int cnt = 0;
        for(int i = W - 1; i >= 0; --i){
            bool fl = (x >> i) & 1;
            int st = bv[i].rank(l, fl);
            int en = bv[i].rank(r, fl);
            if(fl){
                st += zero_cnt[i];
                en += zero_cnt[i];
                cnt += (bv[i].rank(r, 0) - bv[i].rank(l, 0));
            }
            l = st, r = en;
        }
        return cnt;
    }

    // [l, r)内で[x, y)を満たす値の数
    int count_range(int l, int r, T x, T y){
        return count_lower(l, r, y) - count_lower(l, r, x);
    }
};


signed main(){

    int n, q;
    cin >> n >> q;
    vector<int> a(n);
    for(int i = 0; i < n; ++i)
        cin >> a[i];
    WaveletMatrix<int, 31> w(a);
    for(int i = 0; i < q; ++i){
        int l, r;
        cin >> l >> r;
        cout << w.count_range(0, n, l, r + 1) << endl;
    }
}
accuracy: 0.2
time_ms: 250
memory_kb: 5108
final_rank: 19

code_snippet: #include "bits/stdc++.h"

using namespace std;

using i64 = long long;


struct BitVector{
    vector<uint64_t> v, r;
    BitVector(){}
    void build(){
        r.assign(v.size() + 1, 0);
        for(int i = 0; i < v.size(); ++i)
            r[i + 1] = r[i] + __builtin_popcount(v[i]);
    }
    bool access(int x){
        return (v[x >> 6] >> (x & 63)) & 1;
    }
    // [0, x)の1の出現回数
    int rank(int x){
        return r[x >> 6] + __builtin_popcount(v[x >> 6] & ((1uLL << (x & 63)) - 1));
    }
    int rank(int x, bool fl){
        return fl ? rank(x) : x - rank(x);
    }
};

template <typename T, int W>
struct WaveletMatrix{

    array<BitVector, W> bv;
    array<uint32_t, W> zero_cnt;

    WaveletMatrix(vector<T>& a){
        int n = a.size();
        vector<T> v(a);
        for(int i = W - 1; i >= 0; --i){
            vector<uint64_t> b((n >> 6) + 1, 0);
            vector<T> v1, v2;
            for(int j = 0; j < n; ++j){
                ((v[j] >> i) & 1 ? v2 : v1).push_back(v[j]);
                b[j >> 6] |= ((v[j] >> i) & 1) << (j & 63);
            }
            for(int j = 0; j < v.size(); ++j)
                v[j] = (j < v1.size() ? v1[j] : v2[j - v1.size()]);
            bv[i].v = move(b);
            bv[i].build();
            zero_cnt[i] = bv[i].rank(n, 0);
        }
    }

    // [l, r)内のxの数
    int count(int l, int r, T x){
        for(int i = W - 1; i >= 0; --i){
            bool fl = (x >> i) & 1;
            int st = bv[i].rank(l, fl);
            int en = bv[i].rank(r, fl);
            l = (fl ? zero_cnt[i] : 0) + st;
            r = (fl ? zero_cnt[i] : 0) + en;
        }
        return r - l;
    }

    // [l, r)内で[0, x)を満たす値の数
    int count_lower(int l, int r, T x){
        int cnt = 0;
        for(int i = W - 1; i >= 0; --i){
            bool fl = (x >> i) & 1;
            int st = bv[i].rank(l, fl);
            int en = bv[i].rank(r, fl);
            if(fl)
                cnt += (bv[i].rank(r, 0) - bv[i].rank(l, 0));
            l = (fl ? zero_cnt[i] : 0) + st;
            r = (fl ? zero_cnt[i] : 0) + en;
        }
        return cnt;
    }

    // [l, r)内で[x, y)を満たす値の数
    int count_range(int l, int r, T x, T y){
        return count_lower(l, r, y) - count_lower(l, r, x);
    }
};


signed main(){

    int n, q;
    cin >> n >> q;
    vector<int> a(n);
    for(int i = 0; i < n; ++i)
        cin >> a[i];
    WaveletMatrix<int, 31> w(a);
    for(int i = 0; i < q; ++i){
        int l, r;
        cin >> l >> r;
        cout << w.count_range(0, n, l, r + 1) << endl;
    }
}
accuracy: 0.2
time_ms: 260
memory_kb: 5184
final_rank: 20