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

#include <iostream>
#include<algorithm>
#include<cstdio>
#include<cmath>
#include<limits>
#include<string.h>
#include<vector>
#include<stack>
#include<queue>
using namespace std;

int main()
{
    int n,m;
    cin>>n>>m;
    int k=0;
    int x[100100];
    for(int i=0;i<n;i++){
        cin>>x[i];
    }
    int y[100100]={};
    for(int i=0;i<n;i++){
        y[x[i]]+=1;
    }
    int z[100100]={};
    int w[100100]={};
    for(int i=0;i<100001;i++){
        z[i%m]+=y[i];
        w[i%m]+=(y[i]/2);
    }
    if(m%2==1){
        k+=z[0]/2;
        for(int i=1;i<=m/2;i++){
            if(z[i]>=z[m-i]){
                k+=z[m-i];
                if((z[i]-z[m-i])/2>=w[i]){
                    k+=w[i];
                }else
                {
                    k+=(z[i]-z[m-i])/2;
                }
            }else
            {
                k=[i];
                if((z[m-i]-z[i])/2>=w[m-i]){
                    k+=w[m-i];
                }else
                {
                    k+=(z[m-i]-z[i])/2;
                }
            }
        }
        
    }else
    {
        k+=z[0]/2;
        k+=z[m/2]/2;
        for(int i=1;i<m/2;i++){
            if(z[i]>=z[m-i]){
                k+=z[m-i];
                if((z[i]-z[m-i])/2>=w[i]){
                    k+=w[i];
                }else
                {
                    k+=(z[i]-z[m-i])/2;
                }
            }else
            {
                k+=z[i];
                if((z[m-i]-z[i])/2>=w[m-i]){
                    k+=w[m-i];
                }else
                {
                    k+=(z[m-i]-z[i])/2;
                }
            }

        }
    

    }

    cout<<k<<endl;
    

    

    return 0;
}

Compiler output:
a.cc: In lambda function:
a.cc:44:22: error: expected '{' before ';' token
   44 |                 k=[i];
      |                      ^
a.cc: In function 'int main()':
a.cc:44:19: error: cannot convert 'main()::<lambda()>' to 'int' in assignment
   44 |                 k=[i];
      |                   ^~~
      |                   |
      |                   main()::<lambda()>
Language: C++

#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
#define rep(i, n) for(ll i = 0; i < (ll)(n); i++)
#define rep2(i, a, n) for(ll i = a; i < (ll)(n); i++)
#define memi cout << endl
#define kono(n) cout << fixed << setprecision(n)
#define all(c) (c).begin(), (c).end()
#define pb push_back
#define hina cout << ' '
#define in(n) cin >> n
#define in2(n, m) cin >> n >> m
#define in3(n, m, l) cin >> n >> m >> l
#define out(n) cout << n
const ll mei = (ll)1e9 + 7;

int main(){
  ll n, m, a, b, s;
  in2(n, m);
  vector<pair<ll, ll>> c(n), d(n);
  rep(i, n){
    in(a);
    d[i].first = a % m;
    d[i].second = i;
    c[i].first = a;
    c[i].second = 0;
  }
  sort(all(d));
  a = 0;
  b = n - 1;
  s = 0;
  while(a < b){
    if((d[a].first + d[b].first) % m == 0){
      s++;
      c[d[a].second].second = 1;
      c[d[b].second].second = 1;
      a++;
      b--;
      continue;
    }
    if(a + b < m)
      a++;
    else
      b--;
  }
  a = 0;
  sort(all(c));
  while(a < n - 1){
    if(c[i].first == c[i + 1].first){
      if(c[i].second == 0 && c[i + 1].second == 0){
        s++;
        a += 2;
      }
      else
        a++;
    }
    else
      a++;
  }
  out(s);
  memi;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:49:10: error: 'i' was not declared in this scope
   49 |     if(c[i].first == c[i + 1].first){
      |          ^
Language: C++

#include <iostream>
#include <algorithm>
#include <numeric>
#include <vector>
#include <set>
using namespace std;
typedef long long int ll;

int main(){
	int n,m; cin >> n >> m;
	vector<int> v[m];
	vector<int> x(n);
	for(int i=0;i<n;i++){
		cin >> x[i];
	}
	sort（x.begin（）、x.end（））;
	for（int i = 0; i <n; i ++）{
		v [x [i]％m] .push_back（x [i]）;
	}
	ll ans = 0;
	ans + = v [0] .size（）/ 2;
	if（m％2 == 0）{
		ans + = v [m / 2] .size（）/ 2;
	}
	for（int i = 1; i <=（m-1）/ 2; i ++）{
		if（v [i] .size（）> v [mi] .size（））{
			swap（v [i]、v [mi]）;
		}
		int cnt = 0;
		for（int j = 0; j <v [mi] .size（）; j ++）{
			int cp = v [mi] [j];
			int res = 0;
			while（cp == v [mi] [j]）{
				res ++;
				j ++;
			}
			j--;
			cnt + = res / 2;
		}
		ans + = min（cnt、（int）（v [mi] .size（）-v [i] .size（））/ 2）;
		ans + = v [i] .size（）;
	}
	cout << ans << endl;
}


Compiler output:
a.cc:16:17: error: extended character 、 is not valid in an identifier
   16 |         sort（x.begin（）、x.end（））;
      |                 ^
a.cc:27:36: error: extended character 、 is not valid in an identifier
   27 |                         swap（v [i]、v [mi]）;
      |                                    ^
a.cc:40:25: error: extended character 、 is not valid in an identifier
   40 |                 ans + = min（cnt、（int）（v [mi] .size（）-v [i] .size（））/ 2）;
      |                         ^
a.cc: In function 'int main()':
a.cc:16:9: error: 'sort\U0000ff08x' was not declared in this scope
   16 |         sort（x.begin（）、x.end（））;
      |         ^~~~~~~
a.cc:17:9: error: 'for\U0000ff08int' was not declared in this scope
   17 |         for（int i = 0; i <n; i ++）{
      |         ^~~~~~~~
a.cc:17:25: error: 'i' was not declared in this scope
   17 |         for（int i = 0; i <n; i ++）{
      |                         ^
a.cc:21:15: error: expected primary-expression before '=' token
   21 |         ans + = v [0] .size（）/ 2;
      |               ^
a.cc:21:24: error: 'class std::vector<int>' has no member named 'size\U0000ff08\U0000ff09'
   21 |         ans + = v [0] .size（）/ 2;
      |                        ^~~~~~~~
a.cc:22:9: error: 'if\U0000ff08m\U0000ff052' was not declared in this scope
   22 |         if（m％2 == 0）{
      |         ^~~~~~~~
a.cc:22:21: error: unable to find numeric literal operator 'operator""\U0000ff09'
   22 |         if（m％2 == 0）{
      |                     ^~~
a.cc:25:17: error: expected ';' before 'i'
   25 |         for（int i = 1; i <=（m-1）/ 2; i ++）{
      |                 ^~
      |                 ;
a.cc:25:29: error: '\U0000ff08m' was not declared in this scope
   25 |         for（int i = 1; i <=（m-1）/ 2; i ++）{
      |                             ^~~
a.cc:25:33: error: unable to find numeric literal operator 'operator""\U0000ff09'
   25 |         for（int i = 1; i <=（m-1）/ 2; i ++）{
      |                                 ^~~
Language: C++

constexpr int MAX_SIZE = 1e5 + 1;
std::vector<int> A;
std::vector<int> Count(MAX_SIZE, 0);


int main(void){
    int n, m; scanf("%d%d", &n, &m);
    A.resize(m, 0);
    REP(i, n) {
        int a; scanf("%d", &a);
        A[a % m]++;
        Count[a]++;
    }
    REP(x, MAX_SIZE) A[x % m] += (Count[x] >> 1);
    // x個あって, aペア作れる <~> y個あって, bペア作れる

    int cnt = 0;
    REP(i, m){
        int j = (m - i) % m;
        if(j < i) break;
        if(i == j) {cnt += Count[i]; continue;}
        int p = std::min(A[i], A[j]);
        cnt += p; A[i] -= p; A[j] -= p;
        int q1 = std::min(A[i] / 2, Count[i]);
        int q2 = std::min(A[j] / 2, Count[j]);
        cnt += q1 + q2;
    }
    printf("%d\n", cnt);
    

    return 0;
}


Compiler output:
a.cc:2:6: error: 'vector' in namespace 'std' does not name a template type
    2 | std::vector<int> A;
      |      ^~~~~~
a.cc:1:1: note: 'std::vector' is defined in header '<vector>'; this is probably fixable by adding '#include <vector>'
  +++ |+#include <vector>
    1 | constexpr int MAX_SIZE = 1e5 + 1;
a.cc:3:6: error: 'vector' in namespace 'std' does not name a template type
    3 | std::vector<int> Count(MAX_SIZE, 0);
      |      ^~~~~~
a.cc:3:1: note: 'std::vector' is defined in header '<vector>'; this is probably fixable by adding '#include <vector>'
    3 | std::vector<int> Count(MAX_SIZE, 0);
      | ^~~
a.cc: In function 'int main()':
a.cc:7:15: error: 'scanf' was not declared in this scope
    7 |     int n, m; scanf("%d%d", &n, &m);
      |               ^~~~~
a.cc:8:5: error: 'A' was not declared in this scope
    8 |     A.resize(m, 0);
      |     ^
a.cc:9:9: error: 'i' was not declared in this scope
    9 |     REP(i, n) {
      |         ^
a.cc:9:5: error: 'REP' was not declared in this scope
    9 |     REP(i, n) {
      |     ^~~
a.cc:14:9: error: 'x' was not declared in this scope
   14 |     REP(x, MAX_SIZE) A[x % m] += (Count[x] >> 1);
      |         ^
a.cc:28:5: error: 'printf' was not declared in this scope
   28 |     printf("%d\n", cnt);
      |     ^~~~~~
a.cc:1:1: note: 'printf' is defined in header '<cstdio>'; this is probably fixable by adding '#include <cstdio>'
  +++ |+#include <cstdio>
    1 | constexpr int MAX_SIZE = 1e5 + 1;
Language: C++

#include<iostream>
#include<vector>
using namespace std;

int main(int argc, char* argv[]){
  int n,m; cin >> n >> m;
  vector<vector<int>> x(m, vector<int>(0));
  for(int i = 0; i < n ; i++){
    int a; cin >> a;
    if(a % m == 0) x[0].push_back(a);
    else x[a%m].push_back(a);
  }
  int ans = 0;
  for(int i = 0; i < x.size()/2 + 1; i++){
    if(i%m == 0) ans += (x[0].size() - (x[0].size()%2))/2;
    else if((i * 2) % m == 0) ans += (x[i].size() - x[i].size()%2)/2;
    else{
      int a,b;
      if(x[i].size() > x[m-i].size()){
        a = i;
        b = m - i;
      }
      else{
        a = m - i;
        b = i;
      }
      ans += x[b].size();
      int count = 0;
      sort(x[a].begin(), x[a].end());
      for(int j = 0; j < x[a].size()-1 ; j++){
        if(x[a].size() - x[b].size() >= count+2){
          if(x[a][j] == x[a][j+1]){
            count ++;
            j++;
          }
        }
        else break;
      }
      ans += count;
    }
  }
  cout << ans << endl;
}


Compiler output:
a.cc: In function 'int main(int, char**)':
a.cc:29:7: error: 'sort' was not declared in this scope; did you mean 'short'?
   29 |       sort(x[a].begin(), x[a].end());
      |       ^~~~
      |       short
Language: C++

#include <bits/stdc++.h>
using namespace std;
#define int long long
#define rep(i,n) for(int i=0;i<(n);i++)

signed main(){
	int n,m;cin>>n>>m;
	vector<int>x(n);
	for(auto&& u:x)cin>>u;
	map<int,vector<int>> div;
	for(auto&& u:x)div[u%m].push_back(u);
	int ret=0;
	ret+=div[0].size()/2;
	if(m%2==0)ret+=div[m/2].size()/2;
	for(int i=1;i<=(m-1)/2;i++){
		int x=i,y=m-x;
		int nx=div[x].size(),ny=div[y].size();
		if(nx>ny)swap(x,y);
		ret+=nx;
		int pr=0;
		map<int,int>cnt;
		for(auto&& u:div[y])div[u]++;
		for(auto&& u:cnt)pr+=u.second/2;
	
		ret+=min(ny-nx,pr);
	}
	cout<<ret<<endl;

}


Compiler output:
a.cc: In function 'int main()':
a.cc:22:43: error: no 'operator++(int)' declared for postfix '++' [-fpermissive]
   22 |                 for(auto&& u:div[y])div[u]++;
Language: C++

#include <bits/stdc++.h>
using namespace std;
#define int long long
#define rep(i,n) for(int i=0;i<(n);i++)

signed main(){
	int n,m;cin>>n>>m;
	vector<int>x(n);
	for(auto&& u:x)cin>>u;
	map<int,vector<int>> div;
	for(auto&& u:x)div[u%m].push_back(u);
	int ret=0;
	ret+=div[0].size()/2;
	if(m%2==0)ret+=div[m/2].size()/2;
	for(int i=1;i<m/2;i++){
		int x=i,y=m-x;
		int nx=div[x].size(),ny=div[y].size();
		if(nx>ny)swap(x,y);
		ret+=nx;
		int pr=0;
		for(int j=0;j<y-1;j++){
			sort(begin(div[y]),end(div[y]);
			if(div[y][j]==div[y][j+1]){pr++;j++;}
		}
		ret+=min(ny-nx,pr);
	}
	cout<<ret<<endl;

}


Compiler output:
a.cc: In function 'int main()':
a.cc:22:55: error: expected ')' before ';' token
   22 |                         sort(begin(div[y]),end(div[y]);
      |                             ~                         ^
      |                                                       )
Language: C++

#include <bits/stdc++.h>
using namespace std;
#define int long long
#define rep(i,n) for(int i=0;i<(n);i++)

signed main(){
	int n,m;cin>>n>>m;
	vector<int>x(n);
	for(auto&& u:x)cin>>u;
	map<int,vector<int>> div;
	for(auto&& u:x)div[u%m].push_back(u);
	int ret=0;
	ret+=div[0].size()/2;
	if(m%2==0)ret+=div[m/2].size()/2;
	for(int i=1;i<m/2;i++){
		int x=i,y=m-x;
		int nx=div[x].size(),ny=div[y].size();
		if(nx>ny)swap(x,y);
		ret+=nx;
		int pr=0;
		for(int j=0;j<y-1;j++){
			if(div[y][j]==div[y][j+1]{pr++;j++;}
		}
		ret+=min(ny-nx,pr);
	}
	cout<<ret<<endl;

}


Compiler output:
a.cc: In function 'int main()':
a.cc:22:50: error: expected ')' before '{' token
   22 |                         if(div[y][j]==div[y][j+1]{pr++;j++;}
      |                           ~                      ^
      |                                                  )
a.cc:23:17: error: expected primary-expression before '}' token
   23 |                 }
      |                 ^
Language: C++

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

int main() {
    long long n, m, t, ret = 0;
    std::cin >> n >> m;
    std::vector<std::map<long long, long long>> x(m);
    for (auto i = 0ll; i < n; i++) {
        std::cin >> t;
        x[t % m][t]++;
    }

    auto bo = [](auto acc, auto& p) { return acc + p.second; };

    ret += std::accumulate(x[0].begin(), x[0].end(), 0ll, bo) / 2;
    if (m % 2 == 0) ret += std::accumulate(x[m / 2].begin(), x[m / 2].end(), 0ll, bo) / 2;

    for (auto i = 1; i < (m + 1) / 2; i++) {
        auto ssum = std::accumulate(x[i].begin(), x[i].end(), 0ll, bo);
        auto bsum = std::accumulate(x[m - i].begin(), x[m - i].end(), 0ll, bo);
        if (bsum > ssum) {
            x[i].swap(x[m - i]);
            std::swap(ssum, bsum);
        }
        auto multiels = std::accumulate(x[i].begin(), x[i].end(), 0ll, [](auto acc, auto& el) { return acc + el.second / 2 * 2; });
        if (ssum - multiels >= bsum) {
            ret += bsum + multiels / 2;
        } else {
            ret += bsum + (ssum - bsum) / 2;
        }
    }

    std::cout << ret << std::endl;

    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:17:17: error: 'accumulate' is not a member of 'std'
   17 |     ret += std::accumulate(x[0].begin(), x[0].end(), 0ll, bo) / 2;
      |                 ^~~~~~~~~~
a.cc:18:33: error: 'accumulate' is not a member of 'std'
   18 |     if (m % 2 == 0) ret += std::accumulate(x[m / 2].begin(), x[m / 2].end(), 0ll, bo) / 2;
      |                                 ^~~~~~~~~~
a.cc:21:26: error: 'accumulate' is not a member of 'std'
   21 |         auto ssum = std::accumulate(x[i].begin(), x[i].end(), 0ll, bo);
      |                          ^~~~~~~~~~
a.cc:22:26: error: 'accumulate' is not a member of 'std'
   22 |         auto bsum = std::accumulate(x[m - i].begin(), x[m - i].end(), 0ll, bo);
      |                          ^~~~~~~~~~
a.cc:27:30: error: 'accumulate' is not a member of 'std'
   27 |         auto multiels = std::accumulate(x[i].begin(), x[i].end(), 0ll, [](auto acc, auto& el) { return acc + el.second / 2 * 2; });
      |                              ^~~~~~~~~~
Language: C++

#include<iostream>
#include<vector>
#include<iomanip>
#include<algorithm>
#include<numeric>
#include<cmath>
#include<queue>
#include<set>
#include<map>
#include"basic.cpp"
using namespace std;
using ulong = unsigned long;
using ll = long long;
const int M = 1e9 + 7;
#pragma unused(M)

int main(){
    int n, m;
    cin >> n >> m;
    vector<pair<int, int>> vec;
    map<int, map<int, int>> nums;
    for(int i=0;i<n;i++){
        int x;
        cin >> x;
        vec.emplace_back(x % m, x);
        nums[x % m][x]++;
    }
    // sort(vec.begin(), vec.end());

    // int num = vec[1].second;
    // int num2 = lower_bound(vec.begin(), vec.end(), pair<int, int>{m - num, -1}) -> second;
    // cout<<num<<' '<<num2<<endl;
    // println(nums);
    int ans = 0;

    for(int i=0;i<m;i++){
        if(i == (m - i) % m){
            int s1 = 0;
            auto& m1 = nums[i];
            for(auto& p : m1){ s1 += p.second; }
            ans += s1 / 2;
        }else{
            if(i > (m - i) % m){ break; }
            // if(!nums.count(i) || !nums.count((m - i) % m)){ continue; }
            auto& m1 = nums[i];
            auto& m2 = nums[(m - i) % m];
            int s1 = 0, s2 = 0;
            for(auto& p : m1){ s1 += p.second; }
            for(auto& p : m2){ s2 += p.second; }
            ans += min(s1, s2);
            if(s1 == s2){ continue; }
            if(s1 < s2){
                swap(s1, s2);
                swap(m1, m2);
            }
            vector<int> v;
            for(auto& p : m1){ v.push_back(p.second); }
            sort(v.begin(), v.end());
            // sort(v.begin(), v.end(), [](int a, int b){return (a % 2) < (b % 2); });
            // sort(v.begin(), v.end(), [](int a, int b){return !((a % 2) == 0 && (b % 2) == 1); });
            // sort(v.begin(), v.end(), [](int a, int b){return ((a % 2) == 1 && (b % 2) == 0); });
            // println(v);
            // sort(v.begin(), v.end(), [](int a, int b){return (a % 2) < (b % 2); });
            for(int& i : v){
                if(i % 2 == 1){
                    if(s2 == 0){
                        break;
                    }
                    s2--;
                    i--;
                }
            }
            sort(v.begin(), v.end());
            for(int& i : v){
                int d = min(i, s2);
                s2 -= d;
                i -= d;
            }
            for(int& i : v){
                // cnt += i;
                ans += i / 2;
            }
        }
    }
    cout << ans << endl;
    return 0;
}


Compiler output:
a.cc:10:9: fatal error: basic.cpp: No such file or directory
   10 | #include"basic.cpp"
      |         ^~~~~~~~~~~
compilation terminated.
Language: C++

#include<iostream>
#include<vector>
#include<iomanip>
#include<algorithm>
#include<numeric>
#include<cmath>
#include<queue>
#include<set>
#include<map>
using namespace std;
using ulong = unsigned long;
using ll = long long;
const int M = 1e9 + 7;
#pragma unused(M)
#include"basic.cpp"

int main(){
    int n, m;
    cin >> n >> m;
    vector<pair<int, int>> vec;
    map<int, map<int, int>> nums;
    for(int i=0;i<n;i++){
        int x;
        cin >> x;
        vec.emplace_back(x % m, x);
        nums[x % m][x]++;
    }
    // sort(vec.begin(), vec.end());

    // int num = vec[1].second;
    // int num2 = lower_bound(vec.begin(), vec.end(), pair<int, int>{m - num, -1}) -> second;
    // cout<<num<<' '<<num2<<endl;
    // println(nums);
    int ans = 0;
    for(int i=0;i<m;i++){
        if(!nums.count(i)){ continue; }

        auto p1 = nums[i].begin(), p2 = nums[(m - i) % m].begin();
        while(p1 != nums[i].end() && p1 -> second != 1){ p1++; }
        if(p1 == nums[i].end()){ continue; }
        int n1 = p1 -> first;
        while(p2 != nums[(m - i) % m].end() && (p2 -> second == 0 || n1 == p2 -> first)){ p2++; }
        if(p2 == nums[(m - i) % m].end()){ continue; }
        int n2 = p2 -> first;

        // cout<<n1<<' '<<n2<<endl;
        if(n1 != n2){
            nums[i][n1]--;
            nums[(m - i) % m][n2]--;
            // cout<<' '<<n1<<' '<<n2<<endl;
            ans++;
            i--;
        }
    }

    for(int i=0;i<m;i++){
        if(!nums.count(i)){ continue; }

        auto p1 = nums[i].begin(), p2 = nums[(m - i) % m].begin();
        while(p1 != nums[i].end() && p1 -> second == 0){ p1++; }
        if(p1 == nums[i].end()){ continue; }
        int n1 = p1 -> first;
        while(p2 != nums[(m - i) % m].end() && (p2 -> second == 0 || n1 == p2 -> first)){ p2++; }
        if(p2 == nums[(m - i) % m].end()){ continue; }
        int n2 = p2 -> first;

        // cout<<n1<<' '<<n2<<endl;
        if(n1 != n2){
            nums[i][n1]--;
            nums[(m - i) % m][n2]--;
            // cout<<' '<<n1<<' '<<n2<<endl;
            ans++;
            i--;
        }
    }

    for(int i=0;i<m;i++){
        if(!nums.count(i)){ continue; }
        for(auto& p : nums[i]){
            if(p.second >= 2){
                ans += p.second / 2;
            }
        }
    }
    cout << ans << endl;

    return 0;
}


Compiler output:
a.cc:15:9: fatal error: basic.cpp: No such file or directory
   15 | #include"basic.cpp"
      |         ^~~~~~~~~~~
compilation terminated.
Language: C++

#include <algorithm>
#include <bitset>
#include <cstdio>
#include <cassert>
#include <cmath>
#include <functional>
#include <iomanip>
#include <iostream>
#include <map>
#include <numeric>
#include <queue>
#include <set>
#include <stack>
#include <tuple>
#include <utility>
#include <vector>
using namespace std;

constexpr int MOD = 1000000007;

typedef long long int;
typedef pair<int, int> P;
typedef pair<int, int> Pint;

int N, M;
int X[100010];

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

    cin >> N >> M;
    for (int j = 0; j < N; ++j) {
        int v;
        cin >> v;
        X[v] ++;
    }

    int ret = 0;

    int count_0 = 0;
    for (int k = 0; k <= 100000; k += M) {
        count_0 += X[k];
    }
    ret += count_0 / 2;
    int rest = count_0;
    for (int k = 0; k <= 100000 && rest > 0; k += M) {
        if (X[k] % 2 == 1) {
            --X[k];
            --rest;
        }
    }
    for (int k = 0; k <= 100000 && rest > 0; k += M) {
        int dec = min(X[k], rest);
        X[k] -= dec;
        rest -= dec;
    }
    for (int j = 1; j <= M/2; ++j) {
        int rj = M - j;


        int count_j = 0;
        for (int k = j; k <= 100000; k += M) {
            count_j += X[k];
        }

        int count_rj = 0;
        for (int k = rj; k <= 100000; k += M) {
            count_rj += X[k];
        }


        int inc = min(count_j, count_rj);
        if (j == rj) {
            ret += inc / 2;
        } else {
            ret += inc;
        }
        int rest = inc;
        for (int k = j; k <= 100000 && rest > 0; k += M) {
            if (X[k] % 2 == 1) {
                --X[k];
                --rest;
            }
        }
        for (int k = j; k <= 100000 && rest > 0; k += M) {
            int dec = min(X[k], rest);
            X[k] -= dec;
            rest -= dec;
        }
        rest = inc;
        if (j != rj) {
            for (int k = rj; k <= 100000 && rest > 0; k += M) {
                if (X[k] % 2 == 1) {
                    --X[k];
                    --rest;
                }
            }
            for (int k = j; k <= 100000 && rest > 0; k += M) {
                int dec = min(X[k], rest);
                X[k] -= dec;
                rest -= dec;
            }
        }
    }

    for (int j = 0; j <= 100000; ++j) {
        ret += X[j] / 2;
    }

    cout << ret << endl;
    return 0;
}



Compiler output:
a.cc:21:19: error: declaration does not declare anything [-fpermissive]
   21 | typedef long long int;
      |                   ^~~
Language: C++

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

int main() {
    int64_t n, a;
    cin >> n >> a;
    int64_t ans = n;

    auto Solve = [&](int k) {
        if (1.0 * (k - 1) * a > ans) return n;
        int64_t res = (k - 1) * a;
        int64_t d = 2;
        while (true) {
            double f = 1.0;
            int64_t e = 1;
            for (int i = 0; i < k; ++i) {
                f *= d;
                e *= d;
            }
            if (f < n && e < n) d++;
            else break;
        }
        vector<int64_t> cd;
        for (int i = -2; i <= 2; ++i) {
            if (d + i >= 2) cd.push_back(d + i);
        }

        function<int64_t(int, int64_t)> Dfs = [&](int i, int64_t p) {
            if (p >= n) return 0LL;
            if (i == cd.size()) return n;
            int64_t res = n, sum = 0;
            while (p <= n) {
                res = min(res, sum + Dfs(i + 1, p));
                if (1.0 * p * cd[i] > n + n) break;
                p *= cd[i];
                sum += cd[i];
            }
            return res;
        };

        int64_t t = Dfs(0, 1);
        return res + t;
    };

    for (int k = 2; (1LL << k) <= n; ++k) ans = min(ans, Solve(k));
    cout << ans << "\n";
    return 0;
}


Compiler output:
a.cc: In lambda function:
a.cc:30:40: error: inconsistent types 'long long int' and 'long int' deduced for lambda return type
   30 |             if (i == cd.size()) return n;
      |                                        ^
a.cc:38:20: error: inconsistent types 'long long int' and 'long int' deduced for lambda return type
   38 |             return res;
      |                    ^~~
Language: C++

#include <cstdio>
#include <cmath>

typedef long long   signed int LL;
typedef long long unsigned int LU;

#define incID(i, l, r) for(int i = (l)    ; i <  (r); i++)
#define incII(i, l, r) for(int i = (l)    ; i <= (r); i++)
#define decID(i, l, r) for(int i = (r) - 1; i >= (l); i--)
#define decII(i, l, r) for(int i = (r)    ; i >= (l); i--)
#define inc( i, n) incID(i, 0, n)
#define inc1(i, n) incII(i, 1, n)
#define dec( i, n) decID(i, 0, n)
#define dec1(i, n) decII(i, 1, n)

#define inII(v, l, r) ((l) <= (v) && (v) <= (r))
#define inID(v, l, r) ((l) <= (v) && (v) <  (r))

template<typename T> void swap(T & x, T & y) { T t = x; x = y; y = t; return; }
template<typename T> T abs(T x) { return (0 <= x ? x : -x); }
template<typename T> T max(T a, T b) { return (b <= a ? a : b); }
template<typename T> T min(T a, T b) { return (a <= b ? a : b); }
template<typename T> bool setmin(T & a, T b) { if(a <= b) { return false; } else { a = b; return true; } }
template<typename T> bool setmax(T & a, T b) { if(b <= a) { return false; } else { a = b; return true; } }
template<typename T> T gcd(T a, T b) { return (b == 0 ? a : gcd(b, a % b)); }
template<typename T> T lcm(T a, T b) { return a / gcd(a, b) * b; }

// ---- ----

LL n, a;
LL dp[2000000];

int main() {
	scanf("%lld%lld", &n, &a);
	if(n > 1000000 || a > 1000000) { return 1; }
	
	inc(i, n) { dp[i] = i; }
	incID(i, 2, n) {
		int t = dp[i];
		incII(j, 2, n) {
			setmin(dp[i * j], t + a + j);
			if(s * j >= n) { break; }
		}
	}
	
	LL mi = n;
	incID(i, n, 2 * n) { setmin(mi, dp[i]); }
	
	printf("%lld\n", mi);
	
	return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:42:28: error: 's' was not declared in this scope
   42 |                         if(s * j >= n) { break; }
      |                            ^
Language: C++

#include <cstdio>
#include <cmath>

typedef long long   signed int LL;
typedef long long unsigned int LU;

#define incID(i, l, r) for(int i = (l)    ; i <  (r); i++)
#define incII(i, l, r) for(int i = (l)    ; i <= (r); i++)
#define decID(i, l, r) for(int i = (r) - 1; i >= (l); i--)
#define decII(i, l, r) for(int i = (r)    ; i >= (l); i--)
#define inc( i, n) incID(i, 0, n)
#define inc1(i, n) incII(i, 1, n)
#define dec( i, n) decID(i, 0, n)
#define dec1(i, n) decII(i, 1, n)

#define inII(v, l, r) ((l) <= (v) && (v) <= (r))
#define inID(v, l, r) ((l) <= (v) && (v) <  (r))

template<typename T> void swap(T & x, T & y) { T t = x; x = y; y = t; return; }
template<typename T> T abs(T x) { return (0 <= x ? x : -x); }
template<typename T> T max(T a, T b) { return (b <= a ? a : b); }
template<typename T> T min(T a, T b) { return (a <= b ? a : b); }
template<typename T> bool setmin(T & a, T b) { if(a <= b) { return false; } else { a = b; return true; } }
template<typename T> bool setmax(T & a, T b) { if(b <= a) { return false; } else { a = b; return true; } }
template<typename T> T gcd(T a, T b) { return (b == 0 ? a : gcd(b, a % b)); }
template<typename T> T lcm(T a, T b) { return a / gcd(a, b) * b; }

// ---- ----

LL n, a;
int dp[2000000];

int main() {
	scanf("%lld%lld", &n, &a);
	if(n > 1000000 || a > 1000000) { return -1; }
	
	inc(i, n) { dp[i] = i; }
	incID(i, 2, n) {
		int s = dp[i];
		incII(j, 2, n) {
			setmin(dp[s * j], i + a + j);
			if(s * j >= n) { break; }
		}
	}
	
	int mi = n;
	incID(i, n, 2 * n) { setmin(mi, dp[i]); }
	
	printf("%d\n", mi);
	
	return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:41:31: error: no matching function for call to 'setmin(int&, LL)'
   41 |                         setmin(dp[s * j], i + a + j);
      |                         ~~~~~~^~~~~~~~~~~~~~~~~~~~~~
a.cc:23:27: note: candidate: 'template<class T> bool setmin(T&, T)'
   23 | template<typename T> bool setmin(T & a, T b) { if(a <= b) { return false; } else { a = b; return true; } }
      |                           ^~~~~~
a.cc:23:27: note:   template argument deduction/substitution failed:
a.cc:41:31: note:   deduced conflicting types for parameter 'T' ('int' and 'long long int')
   41 |                         setmin(dp[s * j], i + a + j);
      |                         ~~~~~~^~~~~~~~~~~~~~~~~~~~~~
Language: C++

#include <algorithm>
#include <functional>
#include <iomanip>
#include <iostream>
#include <map>
#include <queue>
#include <set>
#include <sstream>
#include <stack>
#include <string>
#include <vector>
#define SREP(s,i,m) for(unsigned int i = s; i < m; ++i)
#define REP(i,m) SREP(0,i,m)
using namespace std;

#ifdef _MSC_VER
using LONG = __int64;
using ULONG = unsigned __int64;
#else
using LONG = long long int;
using ULONG = unsigned long long int;
#endif

// 二乗を計算する。
int sq(int x) { return x * x; }
int main(void) {
  ULONG N, A;
  cin >> N >> A;
  vector<ULONG> D(N + 1);
  D[1] = ULLONG_MAX;
  for (ULONG i = 2; i <= N; i++) {
    ULONG best = -1;
    for (LONG j = 1; j < i; j++) {
      ULONG t = D[j] + (i + j - 1) / j + A;
      best = min(t, best);
    }
    D[i] = best;
  }
  cout << D[N] << endl;
  return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:30:10: error: 'ULLONG_MAX' was not declared in this scope
   30 |   D[1] = ULLONG_MAX;
      |          ^~~~~~~~~~
a.cc:10:1: note: 'ULLONG_MAX' is defined in header '<climits>'; this is probably fixable by adding '#include <climits>'
    9 | #include <stack>
  +++ |+#include <climits>
   10 | #include <string>
Language: C++

#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
const ll inf = numeric_limits<ll>::max() / 2;

ll dp[1000100];

int main(void){
  fill(dp,dp+1000100,inf);
  dp[1] = 0;
  ll n,a;
  cin >> n >> a;
  if(n > pow(10,6)) return 0;
  for(ll i = 1;i <= n;++i){
    ll j = 1;
    while(i*j <= n){
      dp[i*j] = min(dp[i*j],dp[i]+j+a);
      ++j;
    }
  }
  ll res = inf;
  for(ll i = 1;i < n;++i){
    res = min(res,dp[i] + (ll)ceil(n/(double)i));
  }
  cout << min(res) << endl;
  return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:25:14: error: no matching function for call to 'min(ll&)'
   25 |   cout << min(res) << endl;
      |           ~~~^~~~~
In file included from /usr/include/c++/14/algorithm:60,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:51,
                 from a.cc:1:
/usr/include/c++/14/bits/stl_algobase.h:233:5: note: candidate: 'template<class _Tp> constexpr const _Tp& std::min(const _Tp&, const _Tp&)'
  233 |     min(const _Tp& __a, const _Tp& __b)
      |     ^~~
/usr/include/c++/14/bits/stl_algobase.h:233:5: note:   candidate expects 2 arguments, 1 provided
/usr/include/c++/14/bits/stl_algobase.h:281:5: note: candidate: 'template<class _Tp, class _Compare> constexpr const _Tp& std::min(const _Tp&, const _Tp&, _Compare)'
  281 |     min(const _Tp& __a, const _Tp& __b, _Compare __comp)
      |     ^~~
/usr/include/c++/14/bits/stl_algobase.h:281:5: note:   candidate expects 3 arguments, 1 provided
In file included from /usr/include/c++/14/algorithm:61:
/usr/include/c++/14/bits/stl_algo.h:5686:5: note: candidate: 'template<class _Tp> constexpr _Tp std::min(initializer_list<_Tp>)'
 5686 |     min(initializer_list<_Tp> __l)
      |     ^~~
/usr/include/c++/14/bits/stl_algo.h:5686:5: note:   template argument deduction/substitution failed:
a.cc:25:14: note:   mismatched types 'std::initializer_list<_Tp>' and 'long long int'
   25 |   cout << min(res) << endl;
      |           ~~~^~~~~
/usr/include/c++/14/bits/stl_algo.h:5696:5: note: candidate: 'template<class _Tp, class _Compare> constexpr _Tp std::min(initializer_list<_Tp>, _Compare)'
 5696 |     min(initializer_list<_Tp> __l, _Compare __comp)
      |     ^~~
/usr/include/c++/14/bits/stl_algo.h:5696:5: note:   candidate expects 2 arguments, 1 provided
Language: C++

#include <iostream>
using namespace std;

int main(void)
{
    long long int N, A;
    cin >> N >> A;

    long long int dp[40];
    dp[0] = 0;

    for (long long int i = 1; i < 40; i++) {
        dp[i] = LONG_MAX;
        for (int j = 0; j < i; j++)
            dp[i] = min(dp[i], dp[j] + (1L << (i - j)) + A);
        //cout << i << " " << dp[i] << endl;
    }

    long long int res = LONG_MAX, cnt;
    for (long long int i = 0; i < 40; i++) {
        cnt = dp[i] + N / (1L << i);
        if (N % (1 << i))
            cnt++;
        //cout << i << " " << cnt << endl;
        res = min(res, cnt);
    }

    cout << res << endl;
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:13:17: error: 'LONG_MAX' was not declared in this scope
   13 |         dp[i] = LONG_MAX;
      |                 ^~~~~~~~
a.cc:2:1: note: 'LONG_MAX' is defined in header '<climits>'; this is probably fixable by adding '#include <climits>'
    1 | #include <iostream>
  +++ |+#include <climits>
    2 | using namespace std;
a.cc:19:25: error: 'LONG_MAX' was not declared in this scope
   19 |     long long int res = LONG_MAX, cnt;
      |                         ^~~~~~~~
a.cc:19:25: note: 'LONG_MAX' is defined in header '<climits>'; this is probably fixable by adding '#include <climits>'
a.cc:21:9: error: 'cnt' was not declared in this scope; did you mean 'int'?
   21 |         cnt = dp[i] + N / (1L << i);
      |         ^~~
      |         int
Language: C++

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

//int dp[2][1000010];
//vector<int> dp1(1000010);
//vector<int> dp2(1000010);
//vector<int> dp3(1000010);

int main(){
	long long int N,A;
	cin>>N>>A;
	//cout<<m[make_pair(1,1)]<<endl;
	if(N <= A){
		cout<<N<<endl;
		return 0;
	}

	if(N >= 1000010 || A >= 1000010){
		return 0;
	}
	/*
	map<pair<int,int>,int> m2;
	m2[make_pair(A,1)] = A;
	for(int i=A+1;i<=A;i++){

	}
	*/
	//priority_queue<pair<pair<int,int>,int> > que;
	//time num/s total
	map<long long int,map<long long int,long long int> > m;
	m[A][1] = A;
	//que.push(make_pair(make_pair(A,1),A));
	for(long long int i=A;;;i++){
		for(auto &kv : m[i]){
			if(kv.second >= N){
				cout<<i<<endl;
				return 0;
			}
			m[i+1][kv.first] = max(m[i+1][kv.first],kv.second + kv.first);
			if(kv.second > kv.first){
				m[i+A+1][kv.second] = max(m[i+A+1][kv.second],kv.second);
			}
			//cout<<kv.first<<endl;
		}
		/*
		t = q.first.first;
		n = q.first.second;
		num = q.second;
		if(q.first.first >= N){
			cout<<min(res,N)<<endl;
			return 0;
		}
		que.push(make_pair(make_pair(t+1,n),num+n));
		que.push(make_pair())
		*/
	}
	/*
	memset(dp,-1,sizeof(dp));
	dp[1][1] = 1;
	for(int i=2;i<=N;i++){
		for(int j=1;j<=1000000;j++){
			if(i > A){
				for(int k=0;k<j;k++){
					if(dp[i-A][k] == j){
						dp[i][j] = 0;
						break;
					}
				}
			}
			if(dp[i-1][j] != -1){
				dp[i][j] = max(dp[i-1][j] + j,dp[i][j]);
			}
			if(dp[i][j] >= N){
				cout<<i<<endl;
				return 0;
			}
		} 
	}
	*/
}

Compiler output:
a.cc: In function 'int main()':
a.cc:33:32: error: expected primary-expression before ';' token
   33 |         for(long long int i=A;;;i++){
      |                                ^
a.cc:33:32: error: expected ')' before ';' token
   33 |         for(long long int i=A;;;i++){
      |            ~                   ^
      |                                )
a.cc:33:33: error: 'i' was not declared in this scope
   33 |         for(long long int i=A;;;i++){
      |                                 ^
Language: C++

#include <string>
#include <queue>
#include <stack>
#include <vector>
#include <sstream>
#include <algorithm>
#include <deque>
#include <set>
#include <map>
#include <unordered_set>
#include <unordered_map>
#include <list>
#include <cstdio>
#include <iostream>
#include <cmath>
#include <climits>
#include <bitset>
#include <functional>
#include <numeric>
#include <ctime>
#include <cassert>
#include <cstring>
#include <fstream>

#define FOR(i, a, b) for(int (i)=(a); (i)<(b); (i)++)
#define IFOR(i, a, b) for(int (i)=(a);(i)<=(b);(i)++)
#define RFOR(i, a, b) for(int (i)=(a);(i)>=(b);(i)--)

using namespace std;

long long power(long long n, long long p) {
	if (p == 0)
		return 1;
	long long res = 1;
	long long add = n;
	while (p > 0) {
		if (p & 1)
			res = (res * add);
		p >>= 1;
		add = add*add;
	}
	return res;
}

bool check(long long T, long long N, long long a) {
	// division
	long long div;
	if (a == 0)
		div = T;
	else
		div = T / a;
	FOR(k, 1, div) {
		// mはT未満
		// rはk未満（T未満）
		long long m = (T - (k - 1)*a) / k;
		long long r = (T - (k - 1)*a) % k;
		if (m == 0)
			continue;
		// (m+1)をr回、mをk-r回かける
		// でかすぎ
		double exper = pow(m, k - r) * pow(m + 1, r);
		assert(!isinf<double>(exper));
		if (exper > N) {
			return true;
		}
		long long res = power(m, k - r) * power(m + 1, r);
		if (res >= N)
			return true;
	}
	return false;

}


int main() {
	long long n, a;
	cin >> n >> a;

	long long lb = 0, ub = n;
	while (ub - lb > 1) {
		long long half = (lb + ub) / 2;
		if (check(half, n, a)) {
			ub = half;
		}
		else {
			lb = half;
		}
	}
	cout << ub << endl;
	return 0;
}

Compiler output:
In file included from /usr/include/c++/14/cassert:44,
                 from a.cc:21:
a.cc: In function 'bool check(long long int, long long int, long long int)':
a.cc:62:38: error: no matching function for call to 'isinf<double>(double&)'
   62 |                 assert(!isinf<double>(exper));
      |                         ~~~~~~~~~~~~~^~~~~~~
In file included from a.cc:15:
/usr/include/c++/14/cmath:1169:5: note: candidate: 'template<class _Tp> constexpr typename __gnu_cxx::__enable_if<std::__is_integer<_Tp>::__value, bool>::__type std::isinf(_Tp)'
 1169 |     isinf(_Tp)
      |     ^~~~~
/usr/include/c++/14/cmath:1169:5: note:   template argument deduction/substitution failed:
/usr/include/c++/14/cmath: In substitution of 'template<class _Tp> constexpr typename __gnu_cxx::__enable_if<std::__is_integer<_Tp>::__value, bool>::__type std::isinf(_Tp) [with _Tp = double]':
a.cc:62:3:   required from here
   62 |                 assert(!isinf<double>(exper));
      |                         ~~~~~~~~~~~~~^~~~~~~
/usr/include/c++/14/cmath:1169:5: error: no type named '__type' in 'struct __gnu_cxx::__enable_if<false, bool>'
 1169 |     isinf(_Tp)
      |     ^~~~~
a.cc:62:38: note: some candidates omitted; use '-fdiagnostics-all-candidates' to display them
   62 |                 assert(!isinf<double>(exper));
      |                         ~~~~~~~~~~~~~^~~~~~~
Language: C++

#pragma GCC optimize("O3")
#pragma GCC target("sse4.2")
 
#include <vector>
#include <queue>
#include <unordered_map>
#include <tuple>
#include <cstdio>
#include <cmath>
using namespace std;
 
namespace std{
	template<typename T>
	inline void hash_combine(size_t& seed, T const& v){
		seed ^= hash<T>()(v) + 0x9e3779b9 + (seed<<6) + (seed>>2);
	}
	template<typename It>
	inline size_t hash_range(It first, It last){
		size_t seed=0;
		hash_range(seed,first,last);
		return seed;
	}
	template<typename It>
	inline void hash_range(size_t& seed, It first, It last){
		for(;first!=last;++first)hash_combine(seed, *first);
	}
	template<typename A,typename B>
	class hash<pair<A,B>>{
		public:
		size_t operator()(pair<A,B> const &p) const{
			size_t seed=0;
			hash_combine(seed,p.first);
			hash_combine(seed,p.second);
			return seed;
		}
	};
}
 
int main(){
	long long N,A,R;
	scanf("%lld%lld",&N,&A);R=N;
	if(N>1000000)return 1;
	//if(N>100000)R=sqrt(R);
 
	unordered_map<pair<long long,long long>,long long>m; //m<n,speed>=time
	m[{0,1}]=0;
	queue<tuple<long long,long long,long long> >q;
	q.push(make_tuple(0,0,1));
	for(;!q.empty();){
		auto cur=q.top();q.pop();
		long long time=-get<0>(cur);
		long long n=get<1>(cur);
		long long speed=get<2>(cur);
		
		if(time>=R)continue;
 
		vector<tuple<int,int,int>> nxt={
			make_tuple(0,n,time+A),
			make_tuple(n+speed,speed,time+1)
		};
		for(auto &e:nxt){
			long long nxtn=get<0>(e);
			long long nxtspeed=get<1>(e);
			long long nxttime=get<2>(e);
			if(nxtn>=N){
				R=min(R,nxttime);
			}else if(nxttime<R && (m.find({nxtn,nxtspeed})==m.end()||m[{nxtn,nxtspeed}]>nxttime)){
				m[{nxtn,nxtspeed}]=nxttime;
				q.push(make_tuple(-nxttime,nxtn,nxtspeed));
			}
		}
	}
	printf("%lld\n",R);
}

Compiler output:
a.cc: In function 'int main()':
a.cc:50:28: error: 'class std::queue<std::tuple<long long int, long long int, long long int> >' has no member named 'top'; did you mean 'pop'?
   50 |                 auto cur=q.top();q.pop();
      |                            ^~~
      |                            pop
Language: C++

#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
int main(){
  ll n,a;cin>>n>>a;
  if(n>DEBUG||a>DEBUG||n<=a) {
    cout << n << endl;
    return 0;
  }
  ll i,j,k=0,l,ans=n;
  for(i=1;i<=n;i*=2){
    for(l=1;l<=a;l++){
      j=l*i;
      ans=min(ans,l+k*(1+a)+(n-1)/j+1);
    }
    k++;
  }
  cout << ans << endl;
  return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:6:8: error: 'DEBUG' was not declared in this scope
    6 |   if(n>DEBUG||a>DEBUG||n<=a) {
      |        ^~~~~
Language: C++

#include<bits/stdc++.h>

using namespace std;
#define int long long


template< class T >
struct ConvexHullTrick
{
  struct Fraction
  {
    T a, b;

    Fraction(T a, T b) : a(a), b(b)
    {
      if(b < 0) a *= -1, b *= -1;
    }

    bool operator<(const Fraction &r) const
    {
      return a * r.b < r.a * b;
    }
  };

  struct Line
  {
    T a, b;

    Line(T a, T b) : a(a), b(b) {}

    T operator()(T x) const
    {
      return a * x + b;
    }

    bool operator<(const Line &r) const
    {
      return a != r.a ? a < r.a : b < r.b;
    }
  };

  set< Line > ls;
  set< pair< Fraction, Line>> ip;

  ConvexHullTrick()
  {
    ls.emplace(numeric_limits< T >::min(), 0);
  }

  Fraction intersection(Line l1, Line l2)
  {
    return Fraction(-(l2.b - l1.b), l2.a - l1.a);
  }

  bool need(Line l1, Line l2, Line l3)
  {
    return intersection(l1, l2) < intersection(l2, l3);
  }

  void add(T a, T b)
  {
    Line c(a, b);
    auto r = ls.lower_bound(c);
    auto l = prev(r);
    if(l != ls.begin() && r != ls.end()) {
      if(need(*l, c, *r)) {
        ip.erase(make_pair(intersection(*l, *r), *l));
      } else return;
    }
    while(l != ls.begin() && prev(l) != ls.begin() && !need(*prev(l), *l, c)) {
      ip.erase(make_pair(intersection(*prev(l), *l), *prev(l)));
      ls.erase(l--);
    }
    while(r != ls.end() && next(r) != ls.end() && !need(c, *r, *next(r))) {
      ip.erase(make_pair(intersection(*r, *next(r)), *r));
      ls.erase(r++);
    }
    if(l != ls.begin()) {
      ip.emplace(intersection(*l, c), *l);
    }
    if(r != ls.end()) {
      ip.emplace(intersection(c, *r), c);
    }
    ls.emplace(c);
  }

  T maximum(T x)
  {
    auto it = ip.lower_bound(make_pair(Fraction(x, 1), Line(numeric_limits< T >::min(), numeric_limits< T >::min())));
    Line l = it != ip.end() ? it->second : *ls.rbegin();
    return l(x);
  }
};

const int INF = 1 << 30;

int N, A;

signed main()
{
  cin >> N >> A;

  if(N == 1) {
    cout << 1 << endl;
    return (0);
  }
  if(N <= A) {
    cout << N << endl;
    return (0);
  }

  dp1[0] = 0;
  dp1[1] = 1;
  dp2[1] = 1;

  ConvexHullTrick< long long > cht;
  cht.add(1, 0);

  map< int, int > con;

  for(int j = 2; true; j++) {
    dp1[j] = cht.maximum(j);
    if(dp1[j] >= N) {
      cout << j << endl;
      return (0);
    }
    if(j - A >= 0) {
      int val = cht.maximum(j - A);
      cht.add(val, -val * j);
    }
  }
}


Compiler output:
a.cc: In function 'int main()':
a.cc:112:3: error: 'dp1' was not declared in this scope
  112 |   dp1[0] = 0;
      |   ^~~
a.cc:114:3: error: 'dp2' was not declared in this scope; did you mean 'dup2'?
  114 |   dp2[1] = 1;
      |   ^~~
      |   dup2
Language: C++

#include<iostream>
#include<cstdio>
#include<cmath>
#include<vector>
#include<queue>
#include<map>
#include<algorithm>
#include<complex>
#include<string>
#include<cstring>
using namespace std;
#define rep2(x,from,to) for(int x=(from);(x)<(to);(x)++)
#define rep(x,to) rep2(x,0,to)
#define INF 100000000
#define debug(x) cout<<#x<<": "<<x<<endl
#define N 100000
#define all(x) x.begin(),x.end()
typedef pair<int,int> P;
typedef pair<int,P> PP;
int n,a;
int ans;
int dp[1000000];
int main()
{
	cin>>n>>a;
	rep2(i,2,max((int)(sqrt(n))+1,(int)(sqrt(n))*2+1)))
	{
		dp[i]=i+a;
		rep2(j,1,(int)(sqrt(n))*2+1)
		{
			if(i%j==0)
			{
				dp[i]=min(dp[i],dp[j]+i/j+a);
				if(j!=1&&j<(i/j))
				{
					dp[i]=min(dp[i],dp[(i/j)]+j+a);
				}
			}
		}
	}
	ans=n;
	int s;
	rep2(i,1,(int)(sqrt(n))*2+1)
	{
		s=dp[i];
		s+=(n/i);
		if(n%i!=0)s+=1;
		if(ans>s)
		{
			ans=s;
		}
	}
	cout<<ans<<endl;
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:26:59: error: expected primary-expression before ')' token
   26 |         rep2(i,2,max((int)(sqrt(n))+1,(int)(sqrt(n))*2+1)))
      |                                                           ^
Language: C++

#include<iostream>
#include<cstdio>
#include<cmath>
#include<vector>
#include<queue>
#include<map>
#include<algorithm>
#include<complex>
#include<string>
#include<cstring>
using namespace std;
#define rep2(x,from,to) for(int x=(from);(x)<(to);(x)++)
#define rep(x,to) rep2(x,0,to)
#define INF 100000000
#define debug(x) cout<<#x<<": "<<x<<endl
#define N 100000
#define all(x) x.begin(),x.end()
typedef pair<int,int> P;
typedef pair<int,P> PP;
int n,a;
int ans;
int dp[1000000];
int main()
{
	cin>>n>>a;
	rep2(i,2,max((int)(sqrt(n))+1,(int)(sqrt(n))*2+1)))
	{
		dp[i]=i+a;
		rep2(j,1,(int)(sqrt(i))+1)
		{
			if(i%j==0)
			{
				dp[i]=min(dp[i],dp[j]+i/j+a);
				if(j!=1&&j<(i/j))
				{
					dp[i]=min(dp[i],dp[(i/j)]+j+a);
				}
			}
		}
	}
	ans=n;
	int s;
	rep2(i,1,max((int)(sqrt(n))+1,(int)(sqrt(n))*2+1))
	{
		s=dp[i];
		s+=(n/i);
		if(n%i!=0)s+=1;
		if(ans>s)
		{
			ans=s;
		}
	}
	cout<<ans<<endl;
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:26:59: error: expected primary-expression before ')' token
   26 |         rep2(i,2,max((int)(sqrt(n))+1,(int)(sqrt(n))*2+1)))
      |                                                           ^
Language: C++

#include<stdio.h>
#include<algorithm>
#include<map>
using namespace std;
map<long long,long long>dp;
long long A;
long long calc(long long N){
	if(N<=A)return N;
	if(dp.count(N)){
		return dp[N];
	}
	long long ret=N;
	for(long long i=max(2,sqrt(A)-10);i*i<=N;i++){
		ret=min(ret,i+A+calc((N+i-1)/i));
	}
	return dp[N]=ret;
}
int main(){
	long long a,b;
	scanf("%lld%lld",&a,&b);
	A=b;
	printf("%lld\n",calc(a));
}

Compiler output:
a.cc: In function 'long long int calc(long long int)':
a.cc:13:31: error: 'sqrt' was not declared in this scope
   13 |         for(long long i=max(2,sqrt(A)-10);i*i<=N;i++){
      |                               ^~~~
Language: C++

#pragma GCC optimize("O3")
#pragma GCC target("sse4.2")

#include <vector>
#include <queue>
#include <map>
#include <tuple>
#include <cstdio>
using namespace std;

int main(){
	long long N,A,R;
	scanf("%lld%lld",&N,&A);R=N;
	if(N>1000000)return 1;
	if(N>10000)R=sqrt(R);

	map<pair<long long,long long>,long long>m; //m<n,speed>=time
	m[{0,1}]=0;
	priority_queue<tuple<long long,long long,long long> >q;
	q.push(make_tuple(0,0,1));
	for(;!q.empty();){
		auto cur=q.top();q.pop();
		long long time=-get<0>(cur);
		long long n=get<1>(cur);
		long long speed=get<2>(cur);
		
		if(time>=R)continue;

		vector<tuple<int,int,int>> nxt={
			make_tuple(0,n,time+A),
			make_tuple(n+speed,speed,time+1)
		};
		for(auto &e:nxt){
			long long nxtn=get<0>(e);
			long long nxtspeed=get<1>(e);
			long long nxttime=get<2>(e);
			if(nxtn>=N){
				R=min(R,nxttime);
			}else if(m.find({nxtn,nxtspeed})==m.end()||m[{nxtn,nxtspeed}]>nxttime){
				m[{nxtn,nxtspeed}]=nxttime;
				q.push(make_tuple(-nxttime,nxtn,nxtspeed));
			}
		}
	}
	printf("%lld\n",R);
}

Compiler output:
a.cc: In function 'int main()':
a.cc:15:22: error: 'sqrt' was not declared in this scope
   15 |         if(N>10000)R=sqrt(R);
      |                      ^~~~