criyle/codenet-compile-errors huggingface dataset:
Language: C++

#include<bits/stdc++.h>
#include <atcoder/convolution.hpp>
using namespace std;
using namespace atcoder;
using mint = modint998244353;
const int MOD = 998244353;

int sum(int a, int b) {
    return a + b >= MOD ? a + b - MOD : a + b;
}
int sub(int a, int b) {
    return a - b < 0 ? a - b + MOD : a - b;
}
int mul(int a, int b) {
    return (1LL*a*b)%MOD;
}
int pwr(int a, int b) {
	if (!b) return 1;
	int r = pwr(a, b/2);
	r = mul(r, r);
	if (b%2) r = mul(r, a);
	return r;
}


const int MAXX = 1e5+7;
int fact[MAXX], ifact[MAXX];

int nCr(int n, int r) {
    if (r < 0 || n < r) return 0;
    return mul(fact[n], mul(ifact[r], ifact[n-r]));
}

int fr[MAXX];
int pinv[MAXX];
int dfact[MAXX];

vector< vector< mint > >w;
typedef pair< int , int >PII;

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

    fact[0] = 1;
    for (int i = 1; i < MAXX; i++)      fact[i] = mul(i, fact[i-1]);
    ifact[MAXX-1] = pwr(fact[MAXX-1], MOD-2);
    for (int i = MAXX-2; i >= 0; i--)   ifact[i] = mul(i+1, ifact[i+1]);

    pinv[0] = 1;
    pinv[1] = pwr(2, MOD-2);
    for (int i = 2; i < MAXX; i++) pinv[i] = mul(pinv[i-1], pinv[1]);

    dfact[0] = 1;
    for (int i = 2; i < MAXX; i+=2) dfact[i] = mul(dfact[i-2], i-1);

    int n;
    cin >> n;

    for (int i = 0; i < n+n; i++) {
        int h;
        cin >> h;
        fr[h]++;
    }

    priority_queue< PII >pq;
    for (int i = 1; i < MAXX; i++) {
        if (fr[i] == 0) continue;
        w.emplace_back();
        for (int j = 0; j+j <= fr[i]; j++) {
            w.back().push_back(mul(fact[fr[i]], mul(ifact[j], mul(ifact[fr[i]-j-j], pinv[j]))));
        }
        if (w.size() > 1 && w.back().size() == 1) {
            w.pop_back();
        } else {
            pq.emplace(-w.size(), w.size()-1);
        }
    }

    while (pq.size() > 1) {
        PII u = pq.top(); pq.pop();
        PII v = pq.top(); pq.pop();
        w[u.second] = convolution(w[u.second], w[v.second]);
//        w[u.second] = ntt.multiply(w[u.second], w[v.second]);
        while (w[u.second].size() > 1 && w[u.second].back() == 0) w[u.second].pop_back();
        pq.emplace(-w[u.second].size(), u.second);
    }

    int z = pq.top().second;
//    for (int i = 0; i < w[z].size(); i++) {
//        cout << "ways[" << i << "] = " << w[z][i] << endl;
//    }

    int ans = 0;
    for (int i = 0; i <= n && i < w[z].size(); i++) {
        int tmp = mul(w[z][i].val(), dfact[(n-i)*2]);
        if (i&1) ans = sub(ans, tmp);
        else ans = sum(ans, tmp);
    }

    cout << ans << "\n";


    return 0;
}


Compiler output:
a.cc:2:10: fatal error: atcoder/convolution.hpp: No such file or directory
    2 | #include <atcoder/convolution.hpp>
      |          ^~~~~~~~~~~~~~~~~~~~~~~~~
compilation terminated.
Language: C++

#include<bits/stdc++.h>
#define int long long
#define ll long long
using namespace std;
ll read()
{
	char c;
	ll w=1;
	while((c=getchar())>'9'||c<'0')if(c=='-')w=-1;
	ll ans=c-'0';
	while((c=getchar())>='0'&&c<='9')ans=(ans<<1)+(ans<<3)+c-'0';
	return ans*w;
}
int n;
int h[1000005];
const ll mod=998244353;
ll calc(int x)
{
	ll ans=1;
	for(int i=1;i<=2*x;i++)
	{
		if(i&1)
		{
			ans*=i;
			ans%=mod;
		}
	}
	return ans%mod;
}
int js[1000005];
int jiec[1000005];
int ksm(int x,int y)
{
	int ans=1;
	while(y)
	{
		if(y&1)ans*=x,ans%=mod;
		x*=x;x%=mod;
		y>>=1;
	}
	return ans;
}
int t[1000005];
int C(int a,int b)
{
	return jiec[b]*ksm(jiec[a],mod-2)*ksm(jiec[b-a],mod-2);
}
int main(){
	n=read();
	for(int i=1;i<=2*n;i++)
	{
		h[i]=read();
		t[h[i]]++;
	}
	jiec[0]=1;
	for(int i=1;i<=100000;i++)
	{
		jiec[i]=i*jiec[i-1];
		jiec[i]%=mod;
	}
	sort(h+1,h+2*n+1);
	js[1]=1;
	for(int i=1;i<=n;i++)
	{
		js[i]=js[i-1]*(i*2-1);
		js[i]%=mod;
	}
	ll ans=js[n];
	for(int i=1;i<=n;i++)
	{
		if(i&1)
		{
			
		}
		else//jia 
		{
			
		}
	}
	return 0;
}

Compiler output:
cc1plus: error: '::main' must return 'int'
Language: C++

#include <atcoder/convolution>
#include <atcoder/modint>
#include <cstdio>

using namespace std;
using namespace atcoder;
using mint = modint998244353;
int cc[100001];
vector<mint> d[1000001];
vector<mint> fac(100001);
vector<mint> inv(100001);
int dn;
mint C(int n, int m) {
    return fac[n] * inv[m] * inv[n - m];
}
int main() {
    int n, m;
    scanf("%d", &n);
    fac[0]=1;
    for(int i = 1; i <= 100000; i++) {
        fac[i] = fac[i-1] * i;
    }
    inv[100000] = fac[100000].inv();
    for(int i = 100000 - 1; i >= 0; i--) {
        inv[i] = inv[i + 1] * (i + 1);
    }
    for(int i = 0; i < 2 * n; i++){
        int x;
        scanf("%d",&x);
        cc[x]++;
    }
    for(int i = 1; i <= 100000; i++) {
        if(cc[i] > 1) {
            d[dn] = vector<mint>(cc[i] / 2 + 1);
            for(int j = 0; j < (int)d[dn].size(); j++) {
                d[dn][j] = C(cc[i], 2 * j) * fac[2 * j] * inv[j];
            }
        }
    }
    int it = 0;
    while(it + 1 < dn) {
        d[dn++] = convolution(d[it], d[it + 1]);
        it += 2;
    }
    mint an;
    for(int i = 0; i < (int)d[it].size(); i++) {
        if(i & 1) {
            an -= d[it][i] * C(n, i) * fac[2 * n - 2 * i] * fac[i];
        } else {
            an += d[it][i] * C(n, i) * fac[2 * n - 2 * i] * fac[i];
        }
    }
    an *= inv[n];
    for(int i = 0; i < n; i++) {
        an *= inv[2];
    }
    printf("%d\n",an.val());
    return 0;
}




Compiler output:
a.cc:1:10: fatal error: atcoder/convolution: No such file or directory
    1 | #include <atcoder/convolution>
      |          ^~~~~~~~~~~~~~~~~~~~~
compilation terminated.
Language: C++

#include <iostream>
#include <vector>
#include <map>

#include <atcoder/convolution>
#include <atcoder/modint>

using namespace std;
using namespace atcoder;

using mint = modint998244353;

template<typename T>
struct Combination {
private:
  int sz;
  vector<T> F, F_;
public:
  Combination(int sz) : sz(sz), F(sz+1), F_(sz+1) {
    F[0] = 1;
    for(int i = 0; i < sz; ++i) F[i+1] = F[i]*(i+1);
    F_.back() = (T)1/F.back();
    for(int i = sz-1; i >= 0; --i) F_[i] = F_[i+1]*(i+1);
  }
  T C(int n, int k){
    assert(n <= sz);
    if(n < 0 or k > n) return (T)0;
    return F[n]*F_[k]*F_[n-k];
  }
};

int main(){
  int N;
  cin >> N;
  map<int,int> H;
  for(int i = 0; i < 2*N; ++i){
    int h;
    cin >> h;
    ++H[h];
  }
  Combination<mint> comb(100001);
  vector<mint> C(1,1);
  for(auto [k, v] : H){
    vector<mint> T(v/2+1);
    T[0] = 1;
    for(int i = 0; i < v/2; ++i){
      T[i+1] = T[i]*comb.C(v-2*i,2)/(i+1);
    }
    C = convolution(C,T);
  }
  // cerr << C.size() << endl;
  // for(auto e : C)
  //   cerr << e.val() << " ";
  // cerr << endl;
  vector<mint> A(N+1);
  A[0] = 1;
  for(int i = 1; i <= N; ++i){
    A[i] = A[i-1]*comb.C(2*i,2)/i;
  }
  // for(auto e : A)
  //   cerr << e.val() << " ";
  // cerr << endl;
  mint ans = 0;
  for(int i = 0; i < C.size(); ++i){
    if(C[i] == 0) continue;
    ans += C[i]*(i%2 ? -1 : 1)*A[N-i];
  }
  cout << ans.val() << endl;
}


Compiler output:
a.cc:5:10: fatal error: atcoder/convolution: No such file or directory
    5 | #include <atcoder/convolution>
      |          ^~~~~~~~~~~~~~~~~~~~~
compilation terminated.
Language: C++

#include <bits/stdc++.h>
#include <atcoder/all>
using namespace std;
using namespace atcoder;
using ll = long long;

int main() {
    ll n; cin >> n;
    if (n == 1) {
        cout << 1 << endl;
        return 0;
    }
    
    n *= 2;

    vector<ll> check;
    for (ll i = 2; i * i <= n; i++) {
        if (n % i == 0) {
            check.emplace_back(i);
            if (n / i != i) check.emplace_back(n / i);
        }
    }

    ll ans = n - 1;
    for (int i = 0; i < (int)check.size(); i++) {
        ll x = check[i], y = n / x;
        auto change = crt({0ll, y - 1}, {x, y});
        if (change.second != 0 && change.first < ans) ans = change.first;
    }

    cout << ans << endl;
    return 0;
}


Compiler output:
a.cc:2:10: fatal error: atcoder/all: No such file or directory
    2 | #include <atcoder/all>
      |          ^~~~~~~~~~~~~
compilation terminated.
Language: C++

#include<bits/stdc++.h>
#include<atcoder/all>

using namespace std;
using namespace atcoder;

make CE

using P = pair<int,int>;

//segtreeの初期化
int op(int a, int b){
  return a + b;
}
int e(){
  return 0;
}
  

int main(){
  int N;
  cin >> N;
  vector<P> vec(N);
  vector<P> store(N);
  map<P,int> M;
  for(int i=0; i<N; i++){
    int a, b;
    cin >> a >> b;
    a--; b--;
    P add = {a,b};
    vec[i] = add;
    store[i] = add;
    M[add] = i;
  }
  
  sort(vec.begin(),vec.end());
  
  segtree<int,op,e> seg1(N+1); //そこより小さいものの数
  segtree<int,op,e> seg2(N+1); //そこより大きいものの数
  
  vector<int> ans(N);
  
  for(int i=0; i<N; i++){
    P p = vec[i];
    int y = p.second;
    seg2.set(y,1);
  }
  
  for(int i=0; i<N; i++){
    P p = vec[i];
    int x = p.first;
    int y = p.second;
    int pos = M[p];
    ans[pos] = seg1.prod(0,y) + seg2.prod(y+1,N+1) + 1;
    cout << x << " " << y << " " << seg1.prod(0,y)  << " " << seg2.prod(y+1,N+1) << endl;
    seg1.set(y,1);
    seg2.set(y,0);
  }
  
  for(int i=0; i<N; i++){
    cout << ans[i] << endl;
  }
}

Compiler output:
a.cc:2:9: fatal error: atcoder/all: No such file or directory
    2 | #include<atcoder/all>
      |         ^~~~~~~~~~~~~
compilation terminated.
Language: C++

n=int(input())
p=[0]*(n+1)
a=[0]*(n+1)
an=[0]*(n+1)
for i in range(1, n+1):
    p[i],a[p[i]]=map(int,input().split())
mi=n+2
cu=0
for i in range(1,n+1):
    if mi>a[i]:
        mi=a[i]
    if n-i+1==mi:
        cn=i-cu
        while cu<i:
            cu+=1
            an[cu]=cn
for i in range(1,n+1):
    print(an[p[i]])

Compiler output:
a.cc:1:1: error: 'n' does not name a type
    1 | n=int(input())
      | ^
Language: C++

#include <algorithm>
#include <cmath>
#include <deque>
#include <iomanip>
#include <iostream>
#include <map>
#include <numeric>
#include <set>
#include <stack>
#include <string>
#include <vector>
#include <atcoder/dsu>

#define REP(i, n) for(int i = 0; i < n; ++i)
using namespace std;
using namespace atcoder;
using LLONG = long long;
const LLONG MOD = 998244353;

int main()
{
	int N; cin >> N;
	map<int, pair<int, int>> id2PosMap;
	REP(i, N)
	{
		int x, y; cin >> x >> y;
		id2PosMap[i] = { x, y };
	}
	// x座標でソート
	map<int, int> id2XMap;
	map<int, int> x2YMap;
	for (const auto &kvp : id2PosMap)
	{
		int id = kvp.first;
		int x = kvp.second.first;
		int y = kvp.second.second;
		id2XMap[id] = x;
		x2YMap[x] = y;
	}
	dsu d(N);
	for (int x1 = 1; x1 <= N; ++x1)
	{
		for (int x2 = 1; x2 < x1; ++x2)
		{
			int y1 = x2YMap[x1];
			int y2 = x2YMap[x2];
			if (y1 > y2) d.merge(x1 - 1, x2 - 1);
		}
	}
	REP(id, N)
	{
		cout << d.size(id2XMap[id] - 1) << endl;
	}
}


Compiler output:
a.cc:12:10: fatal error: atcoder/dsu: No such file or directory
   12 | #include <atcoder/dsu>
      |          ^~~~~~~~~~~~~
compilation terminated.
Language: C++

#include<iostream>
#include<cstring>
#include<set>
using namespace std;
const int N=200010;
int n;
int tr[N];
int res[N];
struct node{
    int x;
    int y;
    int id;
    bool operator < (const node&W)const
    {
        if(x!=W.x)
        return x<W.x;
        return  y<W.y;
    }
}q[N];
int p[N];
int sz[N];
int find(int x)
{
    if(p[x]!=x)
        p[x]=find(p[x]);
    return p[x];
}
int lowbit(int x)
{
    return x&-x;
}
void add(int x,int d)
{
    for(int i=x;i<=n;i+=lowbit(i))
        tr[i]+=d;
}
void query(int x)
{
    int res=0;
    //for(int i=x;i;i-=lowbit(i))
        //p[q[i].id] = find(p[i])
//    return res;
}
bool cmp(pair<int,int>a,pair<int,int>b)
{
    if(a.first!=b.first)
        return a.first<b.first;
    else
        return a.second<b.second;
}
set<pair<int,int>>s;
int main()
{
    scanf("%d",&n);
    for(int i=1;i<=n;i++)
        scanf("%d%d",&q[i].x,&q[i].y),q[i].id=i;
    for(int i=1;i<=n;i++)
        p[i]=i,sz[i]=1;
     sort(q+1,q+n+1);
    // cout<<"---"<<endl;
    // for(int i=1;i<=n;i++)
    //     cout<<q[i].x<<' '<<q[i].y<<' '<<q[i].id<<endl;
    // //int res=0;
   for(int i=1;i<=n;i++)
   {
            s.insert({q[i].y,q[i].id});
        auto it=s.lower_bound({q[i].y,0});
        int b=q[i].id;
        for(set<pair<int,int>>::iterator x=s.begin();x!=it;x++)
        {
            int a=x->second;
            if(find(a)!=find(b))
            {
                p[a]=b;
                sz[b]+=sz[a];
            }

        }
   }
    s.clear();
    for(int i=n;i>=1;i--)
   {
            s.insert({q[i].y,q[i].id});
        auto it=s.upper_bound({q[i].y,0});
        int b=q[i].id;
        for(set<pair<int,int>>::iterator x=it;x!=s.end();x++)
        {
            int a=x->second;
            if(find(a)!=find(b))
            {
                p[a]=b;
                sz[b]+=sz[a];
            }

        }
   }  
    for(int i=1;i<=n;i++)
        printf("%d\n",sz[find(i)]);
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:59:6: error: 'sort' was not declared in this scope; did you mean 'short'?
   59 |      sort(q+1,q+n+1);
      |      ^~~~
      |      short
Language: C++

#include <algorithm>
#include <atcoder/all>
#include <cassert>
#include <cmath>
#include <cstring>
#include <iomanip>
#include <iostream>
#include <iterator>
#include <map>
#include <queue>
#include <set>
#include <stack>
#include <vector>
#define repeat(i, n) for (int i = 0; (i) < (n); ++(i))
#define repeat_from(i, m, n) for (int i = (m); (i) < (n); ++(i))
using namespace std;
template <class T>
void setmax(T &a, T const &b) {
    if (a < b) a = b;
}

template <class T>
void setmin(T &a, T const &b) {
    if (a > b) a = b;
}

template <typename T, typename X>
auto vectors(T a, X x) { return vector<T>(x, a); }

template <typename T, typename X, typename Y, typename... Zs>
auto vectors(T a, X x, Y y, Zs... zs) {
    auto cont = vectors(a, y, zs...);
    return vector<decltype(cont)>(x, cont);
}

using namespace atcoder;
const int INF = (int)1e9;

int main() {
    int N;
    cin >> N;
    vector<tuple<int, int, int>> xyi(N);
    repeat(i, N) {
        int x, y;
        cin >> x >> y;
        xyi[i] = make_tuple(x, y, i);
    }

    sort(xyi.begin(), xyi.end());
    vector<int> res(N);
    dsu d(N);
    // first := y座標のmin, second := 元のインデックス
    set<pair<int, int>> tail;
    for (int i = 0; i < N; ++i) {
        int y = get<1>(xyi[i]);
        int id = get<2>(xyi[i]);
        auto it = tail.upper_bound({y, INF});
        // [tail.begin(), itr)をマージ
        auto ptr = tail.begin();
        while (ptr != it) {
            //int ymin = ptr->first;
            int par = ptr->second;
            d.merge(par, id);
            tail.erase(ptr++);
        }
        tail.emplace(y, id);
    }

    for (int i = 0; i < N; ++i) {
        int id = get<2>(xyi[i]);
        res[id] = d.size(id);
    }

    for (int i = 0; i < N; ++i) {
        cout << res[i] << endl;
    }
    return 0;
}

Compiler output:
a.cc:2:10: fatal error: atcoder/all: No such file or directory
    2 | #include <atcoder/all>
      |          ^~~~~~~~~~~~~
compilation terminated.
Language: C++

#include <bits/stdc++.h>
#include <atcoder/all>
using namespace std;
using namespace atcoder;

__attribute__((constructor))
void fast_io() {
    ios::sync_with_stdio(false);
    cin.tie(nullptr);
}

int main() {
    int n;
    cin >> n;
    vector<int> x(n), y(n);
    for (int i = 0; i < n; ++i) cin >> x[i] >> y[i];

    vector<int> id(n);
    iota(id.begin(), id.end(), 0);
    sort(id.begin(), id.end(), [&](int i, int j) { return x[i] < x[j]; });

    dsu d(n);
    set<pair<int, int>> st;
    for (int i = 0; i < n; ++i) {
        int mn = y[id[i]];
        if (!st.empty()) {
            auto it = st.begin();
            while (it != st.end() && it->first < y[id[i]]) {
                mn = min(mn, it->first);
                d.merge(id[i], it->second);
                it = st.erase(it);
            }
        }
        st.emplace(mn, id[i]);
    }

    for (int i = 0; i < n; ++i) cout << d.size(i) << '\n';
}

Compiler output:
a.cc:2:10: fatal error: atcoder/all: No such file or directory
    2 | #include <atcoder/all>
      |          ^~~~~~~~~~~~~
compilation terminated.
Language: C++

#include <bits/stdc++.h>
#include <atcoder/all>
using namespace std;
using namespace atcoder;
struct UnionFind{
    vector<int> par;//親(根)
    vector<int> rank;//木の深さ

    UnionFind(int n){//初期化関数
        par.resize(n);
        rank.resize(n);
        for(int i = 0; i < n; i++){
            par[i] = i;//初めはノード一個の木なので根は自身
            rank[i] = 1;
        }
    }

    int root(int x){//木の根を求める
    if(par[x] == x) return x;
    else return par[x] = root(par[x]);
    }

    bool same(int x, int y){//同じ木かどうか判定
        return root(x) == root(y);//同じ木ならtrue
    }

    void unite(int x, int y){
        x = root(x);
        y = root(y);
        if(x == y) return;//もし同じ木に属していたら何もしない
        if(rank[x] < rank[y]) swap(x, y);//数が大きい方に小さい方を結合させる
        par[y] = x;
        rank[x] += rank[y];//深さが同じ時だけ結合後深さが増える
    }

    int size(int x) {//深さを返す関数
        return rank[root(x)];
    }
};
int main(){
    int N;
    cin >> N;
    vector<int> x(N), y(N);
    for(int i = 0; i < N; i++) cin >> x[i] >> y[i];
    vector<int> ind(N);
    for(int i = 0; i < N; i++) ind[i] = i;
    sort(ind.begin(), ind.end(), [&](int i, int j){
        return x[i] < x[j];
    });
    int m;
    UnionFind U(N);
    for(int i = 0; i < N; i++){
        if(i == 0) m = ind[i];
        else{
            if(y[m] < y[ind[i]]){
                U.unite(m, ind[i]);
            }
            else m = ind[i];
        }
    }
    for(int i = N - 1; i >= 0; i--){
        if(i == N - 1) m = ind[i];
        else{
            if(y[m] > y[ind[i]]){
                U.unite(m, ind[i]);
            }
            else m = ind[i];
        }
    }
    for(int i = 0; i < N; i++){
        cout << U.size(i) << endl;
    }
}

Compiler output:
a.cc:2:10: fatal error: atcoder/all: No such file or directory
    2 | #include <atcoder/all>
      |          ^~~~~~~~~~~~~
compilation terminated.
Language: C++

#include <iostream>
#include <vector>
#include <set>
#include <unordered_set>
#include <map>
#include <unordered_map>
#include <algorithm>
#include <queue>
#include <cmath>
#include <atcoder/all>
using namespace atcoder;
using namespace std;

int myfind(int a, vector<int>& relation) {
    if (relation[a] == a) return a;
    int res = myfind(relation[a], relation);
    relation[a] = res;
    return res;
}

void myunion(int a, int b, vector<int>& relation) {
    int ta = myfind(a, relation);
    int tb = myfind(b, relation);
    if (ta == tb) return;
    relation[ta] = tb;
}

int main() {
    int n;
    cin >> n;
    vector<pair<int, pair<int, int>>> v;
    for (int i = 0; i < n; i++) {
    	int x, y;
    	cin >> x >> y;

    	v.push_back(make_pair(x - 1, make_pair(y - 1, i)));
    }
    sort(v.begin(), v.end());
    vector<int> relation(n, 0);
    for (int i = 0; i < n; i++) {
    	relation[i] = i;
    }
    map<int, int> m;
    for (int i = 0; i < n; i++) {
    	if (m.size() > 0 && m.begin()->first < v[i].second.first) {
    		vector<int> d;
    		for (auto it = m.begin(); it != m.end() && it->first < v[i].second.first; it++) {
    			d.push_back(it->first);
    			myunion(v[i].second.second, it->second, relation);
    		}
    		for (int i = 1; i < d.size(); i++) {
    			m.erase(d[i]);
    		}
    	} else {
    		m.insert(make_pair(v[i].second.first, v[i].second.second));	
    	}
    }
    unordered_map<int, int> um;
    for (int i = 0; i < n; i++) {
    	um[myfind(i, relation)]++;
    }
    for (int i = 0; i < n; i++) {
    	cout << um[myfind(i, relation)] << endl;
    }
}






Compiler output:
a.cc:10:10: fatal error: atcoder/all: No such file or directory
   10 | #include <atcoder/all>
      |          ^~~~~~~~~~~~~
compilation terminated.
Language: C++

#include <bits/stdc++.h>
using namespace std;
#include <atcoder/all>
using namespace atcoder;
#define ll long long
#define ld long double
#define REP(i,m,n) for(int i=(int)(m); i<(int)(n); i++)
#define rep(i,n) REP(i,0,n)
#define RREP(i,m,n) for(int i=(int)(m); i>=(int)(n); i--)
#define rrep(i,n) RREP(i,(n)-1,0)
#define all(v) v.begin(), v.end()
#define endk '\n'
const int inf = 1e9+7;
const ll longinf = 1LL<<60;
const ll mod = 1e9+7;
const ll mod2 = 998244353;
const ld eps = 1e-10;
template<typename T1, typename T2> inline void chmin(T1 &a, T2 b){if(a>b) a=b;}
template<typename T1, typename T2> inline void chmax(T1 &a, T2 b){if(a<b) a=b;}

int main() {
  cin.tie(0);
  ios::sync_with_stdio(false);
  int n; cin >> n;
  vector<pair<int, int>> P(n);
  vector<int> id(n);
  rep(i, n) {
    cin >> P[i].first >> P[i].second;
    id[i] = i;
  }
  sort(all(id), [&](int i, int j) {
    return P[i] < P[j];
  });
  vector<int> A(n);
  rep(i, n) A[i] = P[id[i]].second;
  dsu uf(n);
  map<int, int> mp;
  rrep(i, n) {
    auto itr = mp.lower_bound(A[i]);
    if(itr != mp.end()) {
      uf.merge(id[i], itr->second);
    }
    mp[A[i]] = id[i];
  }
  vector<int> ans(n);
  rep(i, n) {
    ans[id[i]] = uf.size(id[i]);
  }
  rep(i, n) cout << ans[i] << endk;
  return 0;
}


Compiler output:
a.cc:3:10: fatal error: atcoder/all: No such file or directory
    3 | #include <atcoder/all>
      |          ^~~~~~~~~~~~~
compilation terminated.
Language: C++

#include <bits/stdc++.h>
#include <atcoder/all>
typedef long long ll;
#define REP(i, n) for(int i = 0; i < n; i++)
#define REP2(i, a, b) for(int i = a;i <= b;i++)
#define REPR(i, a, b) for(int i = a; i >= b; i--)
#define FOR(i, m, n) for(int i = m; i < n; i++)
#define INF 2e9
#define MOD 1000000007
#define PI 3.14159265358979323846
#define vi vector<int>
#define vll vector<ll>
#define vi2 vector<vector<int>>
#define eb emplace_back
#define fi first
#define se second
#define ALL(v) v.begin(), v.end()
#define sz(x) int(x.size())
using namespace std;
using namespace atcoder;
using P = pair<ll,ll>;
const int dx[]{0, 1, 0, -1, -1, -1, 1, 1}, dy[]{1, 0, -1, 0, -1, 1, -1, 1};
#define INT(name) int name;cin >> name;
#define VEC(type,name,n) vector<type> name(n);REP(i,n) cin >> name[i];

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

int main()
{
  INT(N);
  vector<P> A(N);
  vector<vector<int>> B(N,vector<int> (3));
  REP(i,N){
    cin >> A[i].first >> A[i].second;
    A[i].fi--;
    A[i].se--;
    B[i][0]=A[i].fi;
    B[i][1]=A[i].se;
    B[i][2]=i;
  }
  dsu d(N);
  sort(ALL(B));
  set<P> st;
  REP(i,N){
    int flag=0;
    for(auto x:st){
      if(x.fi<B[i][1]){
        d.merge(x.se,B[i][2]);
        if(flag==1){
          st.erase(x);
        }
        flag=1;
      }
    }
    if(flag==0){
      st.insert({B[i][1],B[i][2]});
    }
  }

  REP(i,N){
    cout << d.size(i) << endl;
  }
}

Compiler output:
a.cc:2:10: fatal error: atcoder/all: No such file or directory
    2 | #include <atcoder/all>
      |          ^~~~~~~~~~~~~
compilation terminated.
Language: C++

#include<bits/stdc++.h>
#include<atcoder/all>
using namespace std;
using namespace atcoder;
#define fs first
#define sc second
#define pb push_back
#define mp make_pair
#define eb emplace_back
#define ALL(A) A.begin(),A.end()
#define RALL(A) A.rbegin(),A.rend()
typedef long long ll;
typedef pair<ll,ll> P;
template<class T> inline bool chmax(T& a, T b) { if (a < b) { a = b; return 1; } return 0; }
template<class T> inline bool chmin(T& a, T b) { if (a > b) { a = b; return 1; } return 0; }
template<typename T> T gcd(T a,T b){return b?gcd(b,a%b):a;}
const ll MOD=998244353;
const ll LINF=1ll<<60;
const int INF=1<<30;
int dx[]={1,0,-1,0,1,-1,1,-1};
int dy[]={0,1,0,-1,1,-1,-1,1};




struct UnionFind{
    vector<int> data;

    UnionFind(int sz){
        data.assign(sz, -1);
    }

    int find(int k){
        if(data[k] < 0) return k;
        return data[k] = find(data[k]);
    }

    bool unite(int x, int y){
        x = find(x), y = find(y);
        if(x == y) return false;
        if(data[x] > data[y]) swap(x, y);
        data[x] += data[y];
        data[y] = x;
        return true;
    }

    bool same(int x, int y){
        return find(x) == find(y);
    }

    int size(int k){
        return -data[find(k)];
    }

};

int main(){
    int n;cin >> n;
    vector<pair<P,int>> v(n);
    for (int i = 0; i < n; i++) {
        int x,y;cin >> x >> y;
        x--,y--;
        v[i] = mp(mp(x, y),i);
    }
    sort(ALL(v));
    priority_queue<P ,vector<P>, greater<P>> pq;
    UnionFind uf(n);
    for (int i = 0; i < n; i++) {
        int id = v[i].sc;
        int mini = v[i].fs.sc;
        while(not pq.empty() and pq.top().fs < v[i].fs.sc){
            auto pp = pq.top(); pq.pop();
            chmin(mini, pp.fs);
            uf.unite(pp.sc, id);
        }
        pq.push(mp(mini, id));
    }
    for (int i = 0; i < n; i++) {
        cout << uf.size(i) << endl;
    }
    return 0;
}



Compiler output:
a.cc:2:9: fatal error: atcoder/all: No such file or directory
    2 | #include<atcoder/all>
      |         ^~~~~~~~~~~~~
compilation terminated.
Language: C++

#include <bits/stdc++.h>
using namespace std;
const int N = 2e5 + 10;
vector < int > p(N), s(N);
int find_set(int x) {
    return p[x] == x ? x : p[x] = find_set(p[x]);
}
void union_sets(int x, int y) {
    x = find_set(x);
    y = find_set(y);
    if(x == y) return;
    p[y] = x;
    s[x] += s[y];
}
int main() {
    int n;
    cin >> n;
    vector < int > a(n + 1, 1e9), index(n + 1);
    for(int i = 1; i <= n; ++i) {
        int x, y;
        cin >> x >> y;
        a[x] = y;
        p[i] = i; s[i] = 1;
        index[x] = i - 1;
    }
    vector < int > st;
    for(int i = 1; i <= n; ++i) {
        while(!st.empty() && a[st.back()] < a[i]) {
            union_sets(st.back(), i);
            st.pop_back();
        }
        st.push_back(i);
    }
    debug() << imie(p);
    vector < int > ans(n);
    for(int i = 1; i <= n; ++i) {
        ans[index[i]] = s[find_set(i)];
    }
    for(int i : ans) cout << i << ' ';
}

Compiler output:
a.cc: In function 'int main()':
a.cc:34:5: error: 'debug' was not declared in this scope
   34 |     debug() << imie(p);
      |     ^~~~~
a.cc:34:16: error: 'imie' was not declared in this scope
   34 |     debug() << imie(p);
      |                ^~~~
Language: C++

#include <bits/stdc++.h>
#include <atcoder/dsu>
using namespace std;
using namespace atcoder;
#define rep(i,a,b) for(int i = (a); i < (b); ++i)
#define rrep(i,a,b) for(int i = (b); i --> (a);)
#define all(v) (v).begin(),(v).end()
#define trav(x,v) for(auto &x : v)
#define sz(v) int(v.size())
typedef long long ll;
typedef vector<int> vi;
typedef pair<int,int> pii;

int main(){
	cin.sync_with_stdio(0);
	cin.tie(0);
	cin.exceptions(cin.failbit);

	int n;
	cin >> n;

	vi xs(n), ys(n), sy(n);
	rep(i,0,n){
		cin >> xs[i] >> ys[i];
		--xs[i], --ys[i];
	}
	dsu uf(n);
	vector<pii> cur(n);
	rep(i,0,n) cur[xs[i]] = {ys[i], ys[i]};
	vi st;
	rep(i,0,n){
		st.push_back(i);
		while(sz(st) >= 2){
			int a = st.back(), b = st[sz(st)-2];
			if(cur[a].second >= cur[b].first){
				uf.merge(a, b);
				cur[b].first = min(cur[b].first, cur[a].first);	
				cur[b].second = max(cur[b].second, cur[a].second);	
				st.pop_back();
			} else {
				break;
			}
		}
	}
	rep(i,0,n) cout << uf.size(xs[i]) << endl;
}


Compiler output:
a.cc:2:10: fatal error: atcoder/dsu: No such file or directory
    2 | #include <atcoder/dsu>
      |          ^~~~~~~~~~~~~
compilation terminated.
Language: C++

#include <bits/stdc++.h>
#include <atcoder/all>

#define _overload3(_1,_2,_3,name,...) name
#define _rep(i,n) repi(i,0,n)
#define repi(i,a,b) for(int i=int(a);i<int(b);++i)
#define rep(...) _overload3(__VA_ARGS__,repi,_rep,)(__VA_ARGS__)

using namespace std;
using namespace atcoder;

using ll = long long;
using P = pair<int,int>;

constexpr int INF = 1001001001;

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 (a>b) { a=b; return 1; } return 0; }

int main() {
    int n;
    cin >> n;
    vector<P> p(n);
    map<P, int> id;
    vector<int> y2x(n);
    rep (i, n) {
        int x, y;
        cin >> x >> y;
        x--; y--;
        p[i] = make_pair(x, y);
        id[p[i]] = i;
        y2x[y] = x;
    }
    
    sort(p.begin(), p.end());
    dsu d(n);
    priority_queue<int, vector<int>, greater<int>> pq;
    pq.push(p[0].second);
    rep (i, 1, n) {
        int mi = pq.top();
        while (!pq.empty() && pq.top() < p[i].second) {
            int k = pq.top();
            d.merge(id[p[i]], id[make_pair(y2x[k], k)]);
            pq.pop();
        }
        chmin(mi, p[i].second);
        pq.push(mi) ;
    }
    
    rep (i, n) cout << d.size(i) << endl;
    
    return 0;
}


Compiler output:
a.cc:2:10: fatal error: atcoder/all: No such file or directory
    2 | #include <atcoder/all>
      |          ^~~~~~~~~~~~~
compilation terminated.
Language: C

#include <bits/stdc++.h>
using namespace std;
#include <math.h>
#include <iomanip>
template<class T> inline bool chmax(T& a, T b) { if (a < b) { a = b; return 1; } return 0; }
template<class T> inline bool chmin(T& a, T b) { if (a > b) { a = b; return 1; } return 0; }
const int INF=1001001001;
const long long mod=998244353;

struct Unionfind{
  vector<int>d;
  Unionfind(int n):d(n,-1){}
  int root(int x){
    if(d[x]<0){return x;}
    return d[x]=root(d[x]);
  }
  bool unite(int x,int y){
    x=root(x);y=root(y);
    if(x==y){return false;}
    if(d[x]>d[y]){swap(x,y);}
    d[x]+=d[y];
    d[y]=x;
    return true;
  }
  bool same(int x,int y){return root(x)==root(y);}
  int size(int x){return -d[root(x)];}
};
 
int main(){
  int N;
  cin>>N;
  Unionfind uf(N);
  vector<int>y(N);
  vector<int>id(N);
  for(int i=0;i<N;i++){
    int X,Y;
    cin>>X>>Y;
    X--;Y--;
    y[X]=Y;
    id[i]=Y;//yの値でグループを作るので、i番目のグループのサイズを出力するときはi番目のyの値のグループを見る
  }
  set<int>s;
  for(int x=0;x<N;x++){
    int MIN=y[x];
    while(!s.empty()&&*begin(s)<y[x]){//cout<<"a"<<x<<" "<<*begin(s)<<endl;
      uf.unite(y[x],*begin(s));
      chmin(MIN,*begin(s));
      s.erase(s.begin());
    }
    s.insert(MIN);
  }
  for(int i=0;i<N;i++){
    cout<<uf.size(id[i])<<endl;
  }
  return 0;                       
}

Compiler output:
main.c:1:10: fatal error: bits/stdc++.h: No such file or directory
    1 | #include <bits/stdc++.h>
      |          ^~~~~~~~~~~~~~~
compilation terminated.
Language: C++

#include <bits/stdc++.h>
template<class T> inline bool chmin(T&a, T b){if(a > b){a = b; return true;}else{return false;}}
template<class T> inline bool chmax(T&a, T b){if(a < b){a = b; return true;}else{return false;}}
#define ll long long
#define double long double
#define rep(i,n) for(int i=0;i<(n);i++)
#define REP(i,n) for(int i=1;i<=(n);i++)
#define mod (ll)(1e9+7)
#define inf (ll)(3e18+7)
#define pi (double) acos(-1)
#define P pair<int,int>
#define PiP pair<int,pair<int,int>>
#define all(x) x.begin(),x.end()
#define rall(x) x.rbegin(),x.rend()
using namespace std;

int main() {
    int n;
    cin >> n;
    vector<pair<pair<int, int>, int>> p(n);
    rep(i, n){
        cin >> p[i].first.first >> p[i].first.second;
        p[i].second = i;
    }
    sort(all(p));
    dsu uf(n);
    set<P> st;
    rep(i, n){
        int cnt = 0;
        for(auto it = st.begin(); it != st.end(); it++){
            if(it -> first >= p[i].first.second)break;
            else uf.merge(p[i].second, it -> second);
        }
        if(!cnt)st.insert({p[i].first.second, p[i].second});
    }
    rep(i, n)cout << uf.size(i) << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:26:5: error: 'dsu' was not declared in this scope
   26 |     dsu uf(n);
      |     ^~~
a.cc:32:18: error: 'uf' was not declared in this scope
   32 |             else uf.merge(p[i].second, it -> second);
      |                  ^~
a.cc:36:22: error: 'uf' was not declared in this scope
   36 |     rep(i, n)cout << uf.size(i) << endl;
      |                      ^~
Language: C++

#include <iostream>
#include <vector>
#include <set>
#include <map>
#include <queue>
using namespace std;

struct UnionFind {
	vector<int> par;

	UnionFind(int n) : par(n, -1) { }
	void init(int n) { par.assign(n, -1); }

	int root(int x) {
		if (par[x] < 0) return x;
		else return par[x] = root(par[x]);
	}

	bool issame(int x, int y) {
		return root(x) == root(y);
	}

	bool merge(int x, int y) {
		x = root(x); y = root(y);
		if (x == y) return false;
		if (par[x] > par[y]) swap(x, y); // merge technique
		par[x] += par[y];
		par[y] = x;
		return true;
	}

	int size(int x) {
		return -par[root(x)];
	}
};

int main() {
	int N;
	cin >> N; 
	map<int, int>pi;//index,x
	vector<pair<int, int>>v(N);
	map<int, int>py;//y,x
	for (int n = 0; n < N; ++n) {
		int x, y;
		cin >> x >> y;
		x--;
		y--;
		v[n] = {x,y};
		pi[n] = x;
		py[y] = x;
	}
	sort(v.begin(), v.end());
	UnionFind uf(N);
	priority_queue<int, vector<int>, greater<int> > q;
	for (int i = 0; i < N; ++i) {
		int y = v[i].second;
		int ysub = y;
		while (!q.empty()) {
			int y0 = q.top();
			q.pop();
			if (y0 > y) {
				q.push(y0);
				break;
			}
			else {
				ysub = min(ysub,y0);
				uf.merge(py[y], py[y0]);
			}
		}
		q.push(v[i].second);
	}
	for (int n = 0; n < N; ++n) {
		cout << uf.size(pi[n]) << endl;
	}
	return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:52:9: error: 'sort' was not declared in this scope; did you mean 'short'?
   52 |         sort(v.begin(), v.end());
      |         ^~~~
      |         short
Language: C++

#include<iostream>

int main(void){
  int N;
  int x;
  int y;
  int k;
  
  cin >> k ;
  cout << k << endl; 
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:9:3: error: 'cin' was not declared in this scope; did you mean 'std::cin'?
    9 |   cin >> k ;
      |   ^~~
      |   std::cin
In file included from a.cc:1:
/usr/include/c++/14/iostream:62:18: note: 'std::cin' declared here
   62 |   extern istream cin;           ///< Linked to standard input
      |                  ^~~
a.cc:10:3: error: 'cout' was not declared in this scope; did you mean 'std::cout'?
   10 |   cout << k << endl;
      |   ^~~~
      |   std::cout
/usr/include/c++/14/iostream:63:18: note: 'std::cout' declared here
   63 |   extern ostream cout;          ///< Linked to standard output
      |                  ^~~~
a.cc:10:16: error: 'endl' was not declared in this scope; did you mean 'std::endl'?
   10 |   cout << k << endl;
      |                ^~~~
      |                std::endl
In file included from /usr/include/c++/14/iostream:41:
/usr/include/c++/14/ostream:744:5: note: 'std::endl' declared here
  744 |     endl(basic_ostream<_CharT, _Traits>& __os)
      |     ^~~~
Language: C++

#include <bits/stdc++.h>
#include <atcoder/all>

using namespace std;
using namespace atcoder;

int main()
{
    int N;
    cin>>N;

    dsu d(N);
    map<int,int>qer;
    vector<int>b_sort;
    //入力
    for (int i = 0; i < N; i++)
    {
        int x,y;
        cin>>x>>y;
        qer.emplace(x,y);
        b_sort.emplace_back(x);
    }

    for(int i=1;i<N;++i)
    {
        int y = qer[i];
        for(int j=i+1;j<N;++j)
        {
            if(qer[j]>y)
            {
                d.merge(i-1,j-1);
            }
        }
    }

    

    for (auto&&i:b_sort)
    {
        cout<<d.size(i-1)<<endl;
    }
    
    


    return 0;
}

Compiler output:
a.cc:2:10: fatal error: atcoder/all: No such file or directory
    2 | #include <atcoder/all>
      |          ^~~~~~~~~~~~~
compilation terminated.
Language: Java

public class Main {

    public static void main(String[] args) {
        
        Scanner sc = new Scanner(System.in);
        String N = sc.next();
        long n = Long.parseLong(N); 
        
        long m = 0;
        long i = 0;
        while(true){
            m++;
            double c =  -2*m*n;
            double[] sols = method(1, 1,c);
            if(sols[0] > 0 && (int)(sols[0]) - sols[0] == 0){
                i = (int)(sols[0]);
                break;
            }
            if(sols[1] > 0 && (int)(sols[1]) - sols[1] == 0){
                i = (int)(sols[1]);
                break;
            }
        }
        
        System.out.println(i);
        
    }
    
    static double[] method(double a, double b, double c) {
		double[] x = {0,0};
		double d2=0, d=0;
		d2 = b*b - 4*a*c;
		if (d2 >= 0) {
			d = Math.sqrt(d2);
			x[0] = (-b + d)/(2*a);
			x[1] = (-b - d)/(2*a);
		} 
		return x;
	}
}

Compiler output:
Main.java:5: error: cannot find symbol
        Scanner sc = new Scanner(System.in);
        ^
  symbol:   class Scanner
  location: class Main
Main.java:5: error: cannot find symbol
        Scanner sc = new Scanner(System.in);
                         ^
  symbol:   class Scanner
  location: class Main
2 errors
Language: C

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

// one-based numbering
struct UnionFind {
    vector<int> data;
    // i: (data[i] < 0) -> group size, (data[i] > 0) -> parent;
    UnionFind(int n) {
        data.resize(n+1, -1);
    }
    int find(int x) {
        if(data[x] < 0) return x;
        else return data[x] = find(data[x]);
    }
    int size(int x) {
        return -data[find(x)];
    }
    bool unite(int x, int y) {
        x = find(x); y = find(y);
        if(x == y) return false;
        if (data[x] > data[y]) swap(x, y);
        data[x] += data[y];
        data[y] = x;
        return true;
    }
    bool same(int x, int y) {
        x = find(x); y = find(y);
        return x == y;
    }
};


int main() {
    cin.tie(nullptr);
    ios::sync_with_stdio(false);
    int N; cin >> N;
    vector<pair<int, int>> X(N+1), Y(N+1);
    UnionFind UF(N);
    for (int i = 1; i <= N; i++) {
        int x, y; cin >> x >> y;
        X[x] = {y, i};
        Y[y] = {x, i};
    }
    set<pair<int, int>> S;
    for (int i = 1; i <= N; i++) {
        bool ins = true;
        if (!S.empty()) {
            for (auto [y, z] : S) {
                if (y < X[i].first) {
                    UF.unite(X[i].second, z);
                    if (y > X[i].first) {
                        S.erase(S.begin());
                    } else ins = false;
                } else break;
            }
        }
        if (ins) S.emplace(X[i].first, X[i].second);
    }

    for (int i = 1; i <= N; i++) {
        cout << UF.size(i) << "\n";
    }

    return 0;
}

Compiler output:
main.c:1:10: fatal error: bits/stdc++.h: No such file or directory
    1 | #include <bits/stdc++.h>
      |          ^~~~~~~~~~~~~~~
compilation terminated.
Language: C++


#include <cstdio>
#include <bits/stdc++.h>
#include "atcoder/dsu.hpp"

using namespace std;
using namespace atcoder;

typedef long long ll;

vector<pair<ll,ll> > vp;

bool jud(pair<ll,ll> a,pair<ll,ll> b){
    bool flag=false;
    if(a.first<b.first&&a.second<b.second){
        flag=true;
    }
    if(a.first>b.first&&a.second>b.second){
        flag=true;
    }
    return flag;


}

int main() {
    ll N;
    cin>>N;
    vp.resize(N);

    for(ll i=0;i<N;i++){
        cin>>vp[i].first>>vp[i].second;
    }

    dsu d(N);

    for(ll i=0;i<N-1;i++){
        for(ll j=i+1;j<N;j++){
            if(jud(vp[i],vp[j])){

                d.merge(i,j);

            }
        }

    }

    for(int i=0;i<N;i++){
        cout<<d.size(i)<<endl;
    }
}

Compiler output:
a.cc:4:10: fatal error: atcoder/dsu.hpp: No such file or directory
    4 | #include "atcoder/dsu.hpp"
      |          ^~~~~~~~~~~~~~~~~
compilation terminated.
Language: C++

#include "atcoder/dsu.hpp"
#include <cstdio>
#include <bits/stdc++.h>

using namespace std;
using namespace atcoder;

typedef long long ll;

vector<pair<ll,ll> > vp;

bool jud(pair<ll,ll> a,pair<ll,ll> b){
    bool flag=false;
    if(a.first<b.first&&a.second<b.second){
        flag=true;
    }
    if(a.first>b.first&&a.second>b.second){
        flag=true;
    }
    return flag;


}

int main() {
    ll N;
    cin>>N;
    vp.resize(N);

    for(ll i=0;i<N;i++){
        cin>>vp[i].first>>vp[i].second;
    }

    dsu d(N);

    for(ll i=0;i<N-1;i++){
        for(ll j=i+1;j<N;j++){
            if(jud(vp[i],vp[j])){

                d.merge(i,j);

            }
        }

    }

    for(int i=0;i<N;i++){
        cout<<d.size(i)<<endl;
    }
}


Compiler output:
a.cc:1:10: fatal error: atcoder/dsu.hpp: No such file or directory
    1 | #include "atcoder/dsu.hpp"
      |          ^~~~~~~~~~~~~~~~~
compilation terminated.
Language: C++

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

// one-based numbering
struct UnionFind {
    vector<int> data;
    // i: (data[i] < 0) -> group size, (data[i] > 0) -> parent;
    UnionFind(int n) {
        data.resize(n+1, -1);
    }
    int find(int x) {
        if(data[x] < 0) return x;
        else return data[x] = find(data[x]);
    }
    int size(int x) {
        return -data[find(x)];
    }
    bool unite(int x, int y) {
        x = find(x); y = find(y);
        if(x == y) return false;
        if (data[x] > data[y]) swap(x, y);
        data[x] += data[y];
        data[y] = x;
        return true;
    }
    bool same(int x, int y) {
        x = find(x); y = find(y);
        return x == y;
    }
};


int main() {
    cin.tie(nullptr);
    ios::sync_with_stdio(false);
    int N; cin >> N;
    vector<pair<int, int>> X(N+1), Y(N+1);
    UnionFind UF(N);
    for (int i = 1; i <= N; i++) {
        int x, y; cin >> x >> y;
        X[x] = {y, i};
        Y[y] = {x, i};
    }{
    set<pair<int, int>> S;
    for (int i = 1; i <= N; i++) {
        while (!S.empty()) {
            auto [y, z] = *S.begin();
            if (y < X[i].first) {
                UF.unite(X[i].second, z);
                break;
            } else {
                break;
            } 
        }
        S.emplace(X[i].first, X[i].second);
    }

    for (int i = 1; i <= N; i++) {
        cout << UF.size(i) << "\n";
    }

    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:63:2: error: expected '}' at end of input
   63 | }
      |  ^
a.cc:33:12: note: to match this '{'
   33 | int main() {
      |            ^
Language: C

#include <stdio.h>
int main(void){
    int N;
    scanf("%d",&N);
    int a[2][N];
    for(int i=0; i<2; i++){
        for(int j=0; j<N; j++)
        scanf("%d",&a[i][j]);
    } 
    int b[N]={0};
    for(int b=0; b<N; b++){
    if(i==0){
        for(int n=1; n<N; n++){
            if((a[i][b]<a[i][n])||(a[i][b]>a[i][n])){   
            }
            
        }
    b[N]=++1
    }
    if(i==1){
        for(int c=0; c<N; c++){
       if(a[i][N]>a[i][c+1]) 
    }
    }
    
    
    }
    }
    return 0;
}

Compiler output:
main.c: In function 'main':
main.c:10:14: error: variable-sized object may not be initialized except with an empty initializer
   10 |     int b[N]={0};
      |              ^
main.c:12:8: error: 'i' undeclared (first use in this function)
   12 |     if(i==0){
      |        ^
main.c:12:8: note: each undeclared identifier is reported only once for each function it appears in
main.c:18:6: error: subscripted value is neither array nor pointer nor vector
   18 |     b[N]=++1
      |      ^
main.c:18:10: error: lvalue required as increment operand
   18 |     b[N]=++1
      |          ^~
main.c:18:13: error: expected ';' before '}' token
   18 |     b[N]=++1
      |             ^
      |             ;
   19 |     }
      |     ~        
main.c:23:5: error: expected expression before '}' token
   23 |     }
      |     ^
main.c: At top level:
main.c:29:5: error: expected identifier or '(' before 'return'
   29 |     return 0;
      |     ^~~~~~
main.c:30:1: error: expected identifier or '(' before '}' token
   30 | }
      | ^
Language: C++

#include<iostream>
#include<vector>
using namespace std;
int main() {
	int a=0,c=0,;
	cin >> a;
	vector<int>b(a*2);
	vector<int>d(a);
	
	for (int i = 0;i < a * 2;i++) {
		cin >> b[i];
	}
	for (int i = 0;i < a;i++) {
		d[i] += 1;
	}
	for (int i = 0,f=0;i < a * 2;i+=2,f++) {
		for (int r = 0;r < a * 2;r+=2) {
			if ((b[i] > b[r] )&& (b[i + 1] > b[r+1]) ) {
				
				
				
				d[f] += 1;
			}
			else {
				if ((b[i] < b[r]) && (b[i + 1] < b[r + 1])) {
					cout << b[i] << b[i + 1] << b[r] << b[r + 1] << endl;
					d[f] += 1;
				}
			}
		}
	}
	for (int i = 0;i < a ;i++) {
		cout << d[i] << endl;
	}
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:5:21: error: expected unqualified-id before ';' token
    5 |         int a=0,c=0,;
      |                     ^
Language: C++

#include <bits/stdc++.h>
#include <atcoder/dsu>
#include <cstdio>


using namespace std;
using namespace atcoder;

typedef long long ll;

vector<pair<ll,ll> > vp;

bool jud(pair<ll,ll> a,pair<ll,ll> b){
    bool flag=false;
    if(a.first<b.first&&a.second<b.second){
        flag=true;
    }
    if(a.first>b.first&&a.second>b.second){
        flag=true;
    }
    return flag;


}

int main() {
    ll N;
    cin>>N;
    vp.resize(N);

    for(ll i=0;i<N;i++){
        cin>>vp[i].first>>vp[i].second;
    }

    dsu d(N);

    for(ll i=0;i<N-1;i++){
        for(ll j=i+1;j<N;j++){
            if(jud(vp[i],vp[j])){

                d.merge(i,j);

            }
        }

    }

    for(int i=0;i<N;i++){
        cout<<d.size(i)<<endl;
    }
}


Compiler output:
a.cc:2:10: fatal error: atcoder/dsu: No such file or directory
    2 | #include <atcoder/dsu>
      |          ^~~~~~~~~~~~~
compilation terminated.
Language: C++

#include <bits/stdc++.h>
#include <atcoder/dsu>
#include <atcoder/segtree>
using namespace std;
using namespace atcoder;
#define int long long
using vec_int = vector<int>;
using P = pair<int,int>;
using T = tuple<int,int,int>;
using ll = long long;
#define rep(i, n) for(int i = 0; i < (int)(n); i++)

int charToInt(char c){
    char zero_num = '0';
    return (int)c - (int)zero_num;
}
int op(int a, int b){
    return max(a,b);
}
int e(){
    return -1;
}

int target;

bool f(int v) { 
//    cout<<"v:"<<v<<endl;
    return v < target; }

signed main(){
    int N; cin>>N;
    vec_int x(N), y(N);
    rep(i,N)cin>>x.at(i)>>y.at(i);

    dsu d(N);

    vector<T> vec_x(N);
    vector<T> vec_y(N);
    rep(i,N){
        vec_x.at(i)=make_tuple(x.at(i),y.at(i),i);
        vec_y.at(i)=make_tuple(y.at(i),x.at(i),i);
    }
    sort(vec_x.begin(), vec_x.end());
    sort(vec_y.begin(), vec_y.end());

//    reverse(vec_x.begin(), vec_x.end());
//    reverse(vec_y.begin(), vec_y.end());


    vec_int sorted_y(N);
    for(int i=0;i<N;i++){
        T temp  = vec_x.at(i);
        int x, y, pos; tie(x,y,pos) = temp;
        sorted_y.at(i) = y;
    }
    segtree<int,op,e> seg(sorted_y);
    
    vec_int connected(N,-1);
    vec_int visited_y(N,-1);
    for(int i=0;i<N;i++){
        T temp  = vec_x.at(i);
        int x, y, pos; tie(x,y,pos) = temp;

        if(connected.at(pos)!=-1)continue;
        connected.at(pos)=1;
        visited_y.at(y-1)=1;

        int search_pos=i;
        target = y;
        while(true){
            search_pos = seg.max_right<f>(search_pos+1);
//            int search_pos = seg.max_right<f>(0);
            if(search_pos==N)break;
            T temp2 = vec_x.at(search_pos);
            int x2, y2, pos2 ; tie(x2,y2,pos2) = temp2;
            d.merge(pos,pos2);
            connected.at(pos2) = 1;
        }
 
    map<int, int> mm;
    rep(i,N){
        int num = d.leader(i);
        mm[num]++;
    }

    rep(i,N){
        int num = d.leader(i);
        cout<<mm[num]<<endl;
    }








    return 0;
}

Compiler output:
a.cc:2:10: fatal error: atcoder/dsu: No such file or directory
    2 | #include <atcoder/dsu>
      |          ^~~~~~~~~~~~~
compilation terminated.
Language: C++

#include <atcoder/dsu>
#include <cstdio>
#include <bits/stdc++.h>

using namespace std;
using namespace atcoder;

typedef long long ll;

vector<pair<ll,ll> > vp;

bool jud(pair<ll,ll> a,pair<ll,ll> b){
    bool flag=false;
    if(a.first<b.first&&a.second<b.second){
        flag=true;
    }
    if(a.first>b.first&&a.second>b.second){
        flag=true;
    }
    return flag;


}

int main() {
    ll N;
    cin>>N;
    vp.resize(N);

    for(ll i=0;i<N;i++){
        cin>>vp[i].first>>vp[i].second;
    }

    dsu d(N);

    for(ll i=0;i<N-1;i++){
        for(ll j=i+1;j<N;j++){
            if(jud(vp[i],vp[j])){

                d.merge(i,j);

            }
        }

    }

    for(int i=0;i<N;i++){
        cout<<d.size(i)<<endl;
    }
}


Compiler output:
a.cc:1:10: fatal error: atcoder/dsu: No such file or directory
    1 | #include <atcoder/dsu>
      |          ^~~~~~~~~~~~~
compilation terminated.