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

#include <bits/stdc++.h>
using namespace std;
#define LL long long
const int maxn=2e5+5;
int n,m,t,a[maxn],b[maxn];
LL sumb[maxn];
int main()
{
	scanf("%d%d%d",&n,&m,&t);
	for(int i=1;i<=n;++i) scanf("%d",&a[i]);
	for(int i=1;i<=m;++i) scanf("%d",&b[i]),sumb[i]=sumb[i-1]+b[i];
	int ans=upper_bound(sumb,sumb+m+1,t)-sumb-1;
	LL tmp=0;
	for(int i=1;i<=n;++i)
	{
		tmp+=a[i];
		if(tmp>t) break;
		ans=max(ans,i+upper_bound(sumb,sumb+m+1,t-tmp)-sumb-1);
	}
	printf("%d",ans);
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:18:24: error: no matching function for call to 'max(int&, long int)'
   18 |                 ans=max(ans,i+upper_bound(sumb,sumb+m+1,t-tmp)-sumb-1);
      |                     ~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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:257:5: note: candidate: 'template<class _Tp> constexpr const _Tp& std::max(const _Tp&, const _Tp&)'
  257 |     max(const _Tp& __a, const _Tp& __b)
      |     ^~~
/usr/include/c++/14/bits/stl_algobase.h:257:5: note:   template argument deduction/substitution failed:
a.cc:18:24: note:   deduced conflicting types for parameter 'const _Tp' ('int' and 'long int')
   18 |                 ans=max(ans,i+upper_bound(sumb,sumb+m+1,t-tmp)-sumb-1);
      |                     ~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/14/bits/stl_algobase.h:303:5: note: candidate: 'template<class _Tp, class _Compare> constexpr const _Tp& std::max(const _Tp&, const _Tp&, _Compare)'
  303 |     max(const _Tp& __a, const _Tp& __b, _Compare __comp)
      |     ^~~
/usr/include/c++/14/bits/stl_algobase.h:303:5: note:   candidate expects 3 arguments, 2 provided
In file included from /usr/include/c++/14/algorithm:61:
/usr/include/c++/14/bits/stl_algo.h:5706:5: note: candidate: 'template<class _Tp> constexpr _Tp std::max(initializer_list<_Tp>)'
 5706 |     max(initializer_list<_Tp> __l)
      |     ^~~
/usr/include/c++/14/bits/stl_algo.h:5706:5: note:   candidate expects 1 argument, 2 provided
/usr/include/c++/14/bits/stl_algo.h:5716:5: note: candidate: 'template<class _Tp, class _Compare> constexpr _Tp std::max(initializer_list<_Tp>, _Compare)'
 5716 |     max(initializer_list<_Tp> __l, _Compare __comp)
      |     ^~~
/usr/include/c++/14/bits/stl_algo.h:5716:5: note:   template argument deduction/substitution failed:
a.cc:18:24: note:   mismatched types 'std::initializer_list<_Tp>' and 'int'
   18 |                 ans=max(ans,i+upper_bound(sumb,sumb+m+1,t-tmp)-sumb-1);
      |                     ~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Language: C++

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

int main(){
	ios_base::sync_with_stdio(0),cin.tie(0),cout.tie(0);
	long long a,b,k;cin>>a>>b>>k;
  	vector<long> v1,v2;
  	for(int i=0;i<a;i++){
      int x;cin>>x;v1.push_back(x);
    }
	for(int i=0;i<b;i++){
      int x;cin>>x;v1.push_back(x);
    }
	long long t=0;
  	long long i=0;
  	sort(v1.begin(),v1.end());
  	while(t<=k && i<a+b){
      t+=v[i++];
    }
  	cout<<i<<"\n";
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:18:10: error: 'v' was not declared in this scope
   18 |       t+=v[i++];
      |          ^
Language: C++

#include <iostream>
#include <string>
#include <cstdio>
#include <vector>
#include <stdio.h>
#include <algorithm>
#include <functional>
#include <queue>
#include <math.h>
#include <cmath>
#include <unordered_map>

#define rep(i,n) for (int i = 0; i < (n); ++i)
using namespace std;

int acount=0,bcount=0;
long long time=0;

void solve(long long N, long long M, long long K, std::vector<long long> A, std::vector<long long> B){
    while(true){
        if(A[acount]+time>K&&B[bcount]+time>K)break;
        if(A[acount]<=B[bcount]){
            time+=A[acount];
            acount++;
        }else{
            time+=B[bcount];
            bcount++;
        }
    }
    cout<<acount+bcount<<endl;
}

// Generated by 1.1.7.1 https://github.com/kyuridenamida/atcoder-tools  (tips: You use the default template now. You can remove this line by using your custom template)
int main(){
    long long N;
    scanf("%lld",&N);
    long long M;
    scanf("%lld",&M);
    long long K;
    scanf("%lld",&K);
    std::vector<long long> A(N);
    for(int i = 0 ; i < N ; i++){
        scanf("%lld",&A[i]);
    }
    std::vector<long long> B(M);
    for(int i = 0 ; i < M ; i++){
        scanf("%lld",&B[i]);
    }
    solve(N, M, K, std::move(A), std::move(B));
    return 0;
}


Compiler output:
a.cc:17:11: error: 'long long int time' redeclared as different kind of entity
   17 | long long time=0;
      |           ^~~~
In file included from /usr/include/pthread.h:23,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/gthr-default.h:35,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/gthr.h:157,
                 from /usr/include/c++/14/ext/atomicity.h:35,
                 from /usr/include/c++/14/bits/ios_base.h:39,
                 from /usr/include/c++/14/ios:44,
                 from /usr/include/c++/14/ostream:40,
                 from /usr/include/c++/14/iostream:41,
                 from a.cc:1:
/usr/include/time.h:76:15: note: previous declaration 'time_t time(time_t*)'
   76 | extern time_t time (time_t *__timer) __THROW;
      |               ^~~~
a.cc: In function 'void solve(long long int, long long int, long long int, std::vector<long long int>, std::vector<long long int>)':
a.cc:21:21: warning: pointer to a function used in arithmetic [-Wpointer-arith]
   21 |         if(A[acount]+time>K&&B[bcount]+time>K)break;
a.cc:21:26: error: ISO C++ forbids comparison between pointer and integer [-fpermissive]
   21 |         if(A[acount]+time>K&&B[bcount]+time>K)break;
a.cc:21:39: warning: pointer to a function used in arithmetic [-Wpointer-arith]
   21 |         if(A[acount]+time>K&&B[bcount]+time>K)break;
a.cc:21:44: error: ISO C++ forbids comparison between pointer and integer [-fpermissive]
   21 |         if(A[acount]+time>K&&B[bcount]+time>K)break;
a.cc:23:17: warning: pointer to a function used in arithmetic [-Wpointer-arith]
   23 |             time+=A[acount];
a.cc:23:17: error: assignment of read-only location 'time'
a.cc:26:17: warning: pointer to a function used in arithmetic [-Wpointer-arith]
   26 |             time+=B[bcount];
a.cc:26:17: error: assignment of read-only location 'time'
Language: C++

#include <bits/stdc++.h>
#define F first
#define S second
using namespace std;
typedef long long ll;
typedef pair<ll, ll>pll;
const int N = 2e5 + 5;
ll n, m, k, mx, a[N], b[N];
int main()
{
    ios::sync_with_stdio(0); cin.tie(0); cout.tie(0);
    cin >> n >> m >> k;
    for(int i = 0;i < n;++i)
    {
        cin >> a[i];
        if(i)   a[i] += a[i - 1];
    }
    for(int i = 0;i < m;++i)
    {
        cin >> b[i];
        if(i)   b[i] += b[i - 1];
    }
    for(int i = 0;i < n;++i)
    {
        if(a[i] <= k)
        {
            ll ans = i + 1 + (upper_bound(b, b + m, k - a[i]) - b);
            mx = max(mx, ans);
        }
    }
    cout << max(mx, upper_bound(b, b + m, k) - b);
    return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:31:16: error: no matching function for call to 'max(ll&, long int)'
   31 |     cout << max(mx, upper_bound(b, b + m, k) - b);
      |             ~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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:257:5: note: candidate: 'template<class _Tp> constexpr const _Tp& std::max(const _Tp&, const _Tp&)'
  257 |     max(const _Tp& __a, const _Tp& __b)
      |     ^~~
/usr/include/c++/14/bits/stl_algobase.h:257:5: note:   template argument deduction/substitution failed:
a.cc:31:16: note:   deduced conflicting types for parameter 'const _Tp' ('long long int' and 'long int')
   31 |     cout << max(mx, upper_bound(b, b + m, k) - b);
      |             ~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/14/bits/stl_algobase.h:303:5: note: candidate: 'template<class _Tp, class _Compare> constexpr const _Tp& std::max(const _Tp&, const _Tp&, _Compare)'
  303 |     max(const _Tp& __a, const _Tp& __b, _Compare __comp)
      |     ^~~
/usr/include/c++/14/bits/stl_algobase.h:303:5: note:   candidate expects 3 arguments, 2 provided
In file included from /usr/include/c++/14/algorithm:61:
/usr/include/c++/14/bits/stl_algo.h:5706:5: note: candidate: 'template<class _Tp> constexpr _Tp std::max(initializer_list<_Tp>)'
 5706 |     max(initializer_list<_Tp> __l)
      |     ^~~
/usr/include/c++/14/bits/stl_algo.h:5706:5: note:   candidate expects 1 argument, 2 provided
/usr/include/c++/14/bits/stl_algo.h:5716:5: note: candidate: 'template<class _Tp, class _Compare> constexpr _Tp std::max(initializer_list<_Tp>, _Compare)'
 5716 |     max(initializer_list<_Tp> __l, _Compare __comp)
      |     ^~~
/usr/include/c++/14/bits/stl_algo.h:5716:5: note:   template argument deduction/substitution failed:
a.cc:31:16: note:   mismatched types 'std::initializer_list<_Tp>' and 'long long int'
   31 |     cout << max(mx, upper_bound(b, b + m, k) - b);
      |             ~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Language: C++

#include<bits/stdc++.h>
#define fo(i,a,b) for((i)=(a);i<=(b);i++)
#define rfo(i,a,b) for((i)=(a);i>=(b);i--)
#define inrange(x,y,z) (((x)>=(y))&&((x)<=(z)))
#define ALL(vec) ((vec).begin(),(vec).end())
#define SOR(vec) sort(ALL(vec))
#define UNI(vec) (vec).erase(unique(ALL(vec)),(vec).end())
using namespace std;
int n,m;
long long k,a[200100],b[200100],res;
int main(){
	#ifdef FILIN
		#ifndef DavidDesktop
			freopen(FILIN,"r",stdin);
			freopen(FILOUT,"w",stdout);
		#endif
	#endif
	ios::sync_with_stdio(0);
	cin.tie(NULL);
	cout.tie(NULL);
	cin>>n>>m>>k;
	for(int i=1;i<=n;i++) cin>>a[i];
	for(int i=1;i<=m;i++) cin>>b[i];
	for(int i=1;i<=n;i++) a[i]+=a[i-1];
	for(int i=1;i<=m;i++) b[i]+=b[i-1];
	for(int i=0;i<=n;i++){
		if(a[i]>k) break;
		res=max(res,i+upper_bound(b+1,b+m+1,k-a[i])-b-1);
	}
	cout<<res<<endl;
	return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:28:24: error: no matching function for call to 'max(long long int&, long int)'
   28 |                 res=max(res,i+upper_bound(b+1,b+m+1,k-a[i])-b-1);
      |                     ~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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:257:5: note: candidate: 'template<class _Tp> constexpr const _Tp& std::max(const _Tp&, const _Tp&)'
  257 |     max(const _Tp& __a, const _Tp& __b)
      |     ^~~
/usr/include/c++/14/bits/stl_algobase.h:257:5: note:   template argument deduction/substitution failed:
a.cc:28:24: note:   deduced conflicting types for parameter 'const _Tp' ('long long int' and 'long int')
   28 |                 res=max(res,i+upper_bound(b+1,b+m+1,k-a[i])-b-1);
      |                     ~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/14/bits/stl_algobase.h:303:5: note: candidate: 'template<class _Tp, class _Compare> constexpr const _Tp& std::max(const _Tp&, const _Tp&, _Compare)'
  303 |     max(const _Tp& __a, const _Tp& __b, _Compare __comp)
      |     ^~~
/usr/include/c++/14/bits/stl_algobase.h:303:5: note:   candidate expects 3 arguments, 2 provided
In file included from /usr/include/c++/14/algorithm:61:
/usr/include/c++/14/bits/stl_algo.h:5706:5: note: candidate: 'template<class _Tp> constexpr _Tp std::max(initializer_list<_Tp>)'
 5706 |     max(initializer_list<_Tp> __l)
      |     ^~~
/usr/include/c++/14/bits/stl_algo.h:5706:5: note:   candidate expects 1 argument, 2 provided
/usr/include/c++/14/bits/stl_algo.h:5716:5: note: candidate: 'template<class _Tp, class _Compare> constexpr _Tp std::max(initializer_list<_Tp>, _Compare)'
 5716 |     max(initializer_list<_Tp> __l, _Compare __comp)
      |     ^~~
/usr/include/c++/14/bits/stl_algo.h:5716:5: note:   template argument deduction/substitution failed:
a.cc:28:24: note:   mismatched types 'std::initializer_list<_Tp>' and 'long long int'
   28 |                 res=max(res,i+upper_bound(b+1,b+m+1,k-a[i])-b-1);
      |                     ~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Language: C++

#include<iostream>
using namespace std;
typedef long long int ll;
int main()
{
    ll a[200009],b[200009];
    int n,m;
    cin>>n>>m;
    int k;
    cin>>k;
    for(int i=1;i<=n;i++) cin>>a[i];
    for(int i=1;i<=m;i++) cin>>b[i];
    a[0]=0;
    b[0]=0;
    for(int i=1;i<=n;i++) a[i]=a[i]+a[i-1];
    for(int i=1;i<=m;i++) b[i]=b[i]+b[i-1];
    ll ans=0;
    for(int i=1;i<=n;i++)
    {
       if(k>=a[i]) ans= max(ans, (ll)(i+(upper_bound(b+1,b+m+1,k-a[i])-b)-1));
    }
    cout<<ans;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:20:42: error: 'upper_bound' was not declared in this scope
   20 |        if(k>=a[i]) ans= max(ans, (ll)(i+(upper_bound(b+1,b+m+1,k-a[i])-b)-1));
      |                                          ^~~~~~~~~~~
Language: C++

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

int n,m;
LL A[200005], B[200005],k;
LL pa[200005], pb[200005];

int main(){
  scanf("%d%d%lld",&n,&m,&k);
  for ( int i = 0; i < n; i++ ) {
    scanf("%lld",&A[i]);
    pa[i] = A[i];
    if ( i ) pa[i] += pa[i-1];
  }
  for ( int i = 0; i < m; i++ ){
    scanf("%lld",&B[i]);
    pb[i] = B[i];
    if ( i ) pb[i] += pb[i-1];
  }
  
  LL ans = 0;
  int pos = m-1;
  for ( int i = 0; i < n; i++ ){
    LL a = pa[i];
    if ( a > k ) break;
    while ( pos >= 0 && a + pb[pos] > k ) pos--;
    ans = max( ans, i + 1 + pos + 1 );
  }
  printf("%lld\n",ans);
  return 0;
}







Compiler output:
a.cc: In function 'int main()':
a.cc:28:14: error: no matching function for call to 'max(long long int&, int)'
   28 |     ans = max( ans, i + 1 + pos + 1 );
      |           ~~~^~~~~~~~~~~~~~~~~~~~~~~~
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:257:5: note: candidate: 'template<class _Tp> constexpr const _Tp& std::max(const _Tp&, const _Tp&)'
  257 |     max(const _Tp& __a, const _Tp& __b)
      |     ^~~
/usr/include/c++/14/bits/stl_algobase.h:257:5: note:   template argument deduction/substitution failed:
a.cc:28:14: note:   deduced conflicting types for parameter 'const _Tp' ('long long int' and 'int')
   28 |     ans = max( ans, i + 1 + pos + 1 );
      |           ~~~^~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/14/bits/stl_algobase.h:303:5: note: candidate: 'template<class _Tp, class _Compare> constexpr const _Tp& std::max(const _Tp&, const _Tp&, _Compare)'
  303 |     max(const _Tp& __a, const _Tp& __b, _Compare __comp)
      |     ^~~
/usr/include/c++/14/bits/stl_algobase.h:303:5: note:   candidate expects 3 arguments, 2 provided
In file included from /usr/include/c++/14/algorithm:61:
/usr/include/c++/14/bits/stl_algo.h:5706:5: note: candidate: 'template<class _Tp> constexpr _Tp std::max(initializer_list<_Tp>)'
 5706 |     max(initializer_list<_Tp> __l)
      |     ^~~
/usr/include/c++/14/bits/stl_algo.h:5706:5: note:   candidate expects 1 argument, 2 provided
/usr/include/c++/14/bits/stl_algo.h:5716:5: note: candidate: 'template<class _Tp, class _Compare> constexpr _Tp std::max(initializer_list<_Tp>, _Compare)'
 5716 |     max(initializer_list<_Tp> __l, _Compare __comp)
      |     ^~~
/usr/include/c++/14/bits/stl_algo.h:5716:5: note:   template argument deduction/substitution failed:
a.cc:28:14: note:   mismatched types 'std::initializer_list<_Tp>' and 'long long int'
   28 |     ans = max( ans, i + 1 + pos + 1 );
      |           ~~~^~~~~~~~~~~~~~~~~~~~~~~~
Language: C++

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

// 小数点以下桁数
// fixed << setprecision(i)

int gcd(int a,int b){return (a%b==0?b:gcd(b, a%b));}
int64_t lcm(int a,int b){return (int64_t)a*b/gcd(a, b);}
int factorial(int a){int b=1;while(a){b*=a--;}return b;} //13以下対応
bool is_prime(int a){if(a<=1)return false;for(int i=2;(int64_t)i*i<=a;i++){if(a%i==0)return false;}return true;}

//順列の全列挙
// vector<int> v(N);
// iota(v.begin(), v.end(), 1);       // v に 1, 2, ... N を設定
// do {
//   for(auto x : v) cout << x << " "; cout << "\n";    // v の要素を表示
// } while( next_permutation(v.begin(), v.end()) ); 

int main()
{
  int n, m, k, j = 0, k = 0;
  vector<int> a(200000, 1000000001), b(200000, 1000000001);

  cin >> n >> m >> k;
  for (int i = 0; i < n; i++)
    cin >> a[i];
  for (int i = 0; i < m; i++)
    cin >> b[i];
  while (k >= 0)
  {
    if (k - min(a[j], b[k]) >= 0)
    {
      k -= min(a[j], b[k]);
      if (a[j] <= b[k])
        j++;
      else
        k++;
    }
    else
      break;
    if (j == n, k == m)
      break;
  }
  cout << j + k << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:21:23: error: redeclaration of 'int k'
   21 |   int n, m, k, j = 0, k = 0;
      |                       ^
a.cc:21:13: note: 'int k' previously declared here
   21 |   int n, m, k, j = 0, k = 0;
      |             ^
Language: C++

#include<bits/stdc++.h>
#define rep(i, n) for (int i = 0; i < (n); ++i) 
#define rrep(i, a, b) for (int i = (a); i < (b); ++i)
#define PI acos(-1)
#define pcnt __builtin_popcountll
#define rng(a) a.begin(), a.end()
#define rrng(a) a.rbegin(), a.rend()
#define sz(x) (int)(x).size()
#define v(T) vector<T>
#define vv(T) v(v(T))
#define fi first
#define se second

using namespace std;
using ll = long long;
using ld = long double;
using P = pair<int, int>;
using LP = pair<ll, ll>;
using vi = vector<int>;
using vvi = vector<vi>;
using vl = vector<ll>;
using vvl = vector<vl>;
using tl = tuple<ll, ll, ll>;

template<typename T>inline istream& operator>>(istream&i,v(T)&v)
{rep(j,sz(v))i>>v[j];return i;}
template<typename T1,typename T2>inline istream& operator>>(istream&i,pair<T1,T2>&v)
{return i>>v.fi>>v.se;}
template<class T> inline bool chmax(T& a, T b) {if (a < b) { a = b; return true; } return false; }
template<class T> inline bool chmin(T& a, T b) {if (a > b) { a = b; return true; } return false; }

ll INF = 1001001001;
ll LINF = 1001001001001001001ll;

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

    ll n, m, k;
    cin>>n>>m>>k;
    vl as(n), bs(m);
    cin>>as>>bs;

    vl ss(n + 1), ts(m + 1);
    rep(i, n) ss[i + 1] += ss[i] + as[i];
    rep(i, m) ts[i + 1] += ts[i] + bs[i];

    int ans = 0;
    rep(i, n + 1) {
        if (ss[i] > k) break;
        auto it = upper_bound(rng(ts), k - ss[i]);
        chmax(ans, i + (it - ts.begin()) - 1);
    }
    cout<<ans<<endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:52:14: error: no matching function for call to 'chmax(int&, __gnu_cxx::__normal_iterator<long long int*, std::vector<long long int> >::difference_type)'
   52 |         chmax(ans, i + (it - ts.begin()) - 1);
      |         ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
a.cc:29:31: note: candidate: 'template<class T> bool chmax(T&, T)'
   29 | template<class T> inline bool chmax(T& a, T b) {if (a < b) { a = b; return true; } return false; }
      |                               ^~~~~
a.cc:29:31: note:   template argument deduction/substitution failed:
a.cc:52:14: note:   deduced conflicting types for parameter 'T' ('int' and 'long int')
   52 |         chmax(ans, i + (it - ts.begin()) - 1);
      |         ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Language: C++

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

# define Rep(i,a,b) for(int i=a;i<=b;i++)
# define _Rep(i,a,b) for(int i=a;i>=b;i--)
# define RepG(i,u) for(int i=head[u];~i;i=e[i].next)

typedef long long ll;

const int N=2e5+5;

template<typename T> void read(T &x){
   x=0;int f=1;
   char c=getchar();
   for(;!isdigit(c);c=getchar())if(c=='-')f=-1;
   for(;isdigit(c);c=getchar())x=(x<<1)+(x<<3)+c-'0';
    x*=f;
}

# define int long long

int n,m,k;
int a[N],b[N];
int sum[N];
int ans;

signed main()
{
    read(n),read(m),read(k);
    Rep(i,1,n)read(a[i]),a[i]+=a[i-1];
    Rep(i,1,m)read(b[i]),b[i]+=b[i-1];
    Rep(i,0,n){
        if(a[i]>k)break;
        ans=max(ans,i+upper_bound(b+1,b+m+1,k-a[i])-b-1);
    }
    printf("%lld\n",ans);
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:34:16: error: no matching function for call to 'max(long long int&, long int)'
   34 |         ans=max(ans,i+upper_bound(b+1,b+m+1,k-a[i])-b-1);
      |             ~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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:257:5: note: candidate: 'template<class _Tp> constexpr const _Tp& std::max(const _Tp&, const _Tp&)'
  257 |     max(const _Tp& __a, const _Tp& __b)
      |     ^~~
/usr/include/c++/14/bits/stl_algobase.h:257:5: note:   template argument deduction/substitution failed:
a.cc:34:16: note:   deduced conflicting types for parameter 'const _Tp' ('long long int' and 'long int')
   34 |         ans=max(ans,i+upper_bound(b+1,b+m+1,k-a[i])-b-1);
      |             ~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/14/bits/stl_algobase.h:303:5: note: candidate: 'template<class _Tp, class _Compare> constexpr const _Tp& std::max(const _Tp&, const _Tp&, _Compare)'
  303 |     max(const _Tp& __a, const _Tp& __b, _Compare __comp)
      |     ^~~
/usr/include/c++/14/bits/stl_algobase.h:303:5: note:   candidate expects 3 arguments, 2 provided
In file included from /usr/include/c++/14/algorithm:61:
/usr/include/c++/14/bits/stl_algo.h:5706:5: note: candidate: 'template<class _Tp> constexpr _Tp std::max(initializer_list<_Tp>)'
 5706 |     max(initializer_list<_Tp> __l)
      |     ^~~
/usr/include/c++/14/bits/stl_algo.h:5706:5: note:   candidate expects 1 argument, 2 provided
/usr/include/c++/14/bits/stl_algo.h:5716:5: note: candidate: 'template<class _Tp, class _Compare> constexpr _Tp std::max(initializer_list<_Tp>, _Compare)'
 5716 |     max(initializer_list<_Tp> __l, _Compare __comp)
      |     ^~~
/usr/include/c++/14/bits/stl_algo.h:5716:5: note:   template argument deduction/substitution failed:
a.cc:34:16: note:   mismatched types 'std::initializer_list<_Tp>' and 'long long int'
   34 |         ans=max(ans,i+upper_bound(b+1,b+m+1,k-a[i])-b-1);
      |             ~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Language: Java

import java.util.*;
public class j1 {
    public static void main(String args[]){
        Scanner sc=new Scanner(System.in);
        int n=sc.nextInt();
        int m=sc.nextInt();
        int k=sc.nextInt();
        int a[]=new int[n];
        int b[]=new int[m];
        for(int i=0;i<n;i++)
            a[i]=sc.nextInt();
        for(int i=0;i<m;i++)
            b[i]=sc.nextInt();

        int i=0,j=0,t=0;
        int c=0;
        while(i<n && j<m && t<=k){

            if(a[i]<=b[j]){
                if(t+a[i]<=k){
                    t+=a[i];
                    i++;
                }else{
                    break;
                }
            }else{
                if((t+b[j])<=k){
                    t+=b[j];
                    j++;
                }
                else{
                    break;
                }
            }
            c++;
        }
        System.out.println(c);

    }

}




Compiler output:
Main.java:2: error: class j1 is public, should be declared in a file named j1.java
public class j1 {
       ^
1 error
Language: C++

#include<bits/stdc++.h>
using namespace std;
#define int long long int
const int mxN =150000;
int32_t main(){
  ios_base::sync_with_stdio(0);
   cin.tie(0); cout.tie(0);

        int n,m,k; cin>>n>>m>>k;
        queue<int> a,b;
        for(int i=0;i<n;i++){
        	int x; cin>>x;
        	a.push(x);
		}
		for(int i=0;i<m;i++){
        	int x; cin>>x;
        	b.push(x);
		}
		int res=0;
		while(k)
		{
			 int y;
			 if(!a.empty())
			 y=a.front();
			 if(!b.emtpy())
			 y=min(y.b.front());
			 
			 if(k<y)
			 break;
			 else
			 {
			 	 k-=y;
			 	 res++;
			 	 if(a.size() and y==a.front())
			 	 a.pop();
			 	 else if(b.size() and y==b.front())
			 	 b.pop();
			 	 
			 }
			 cout<<res<<endl;
			
		}




 return 0;}



Compiler output:
a.cc: In function 'int32_t main()':
a.cc:25:32: error: 'class std::queue<long long int>' has no member named 'emtpy'; did you mean 'empty'?
   25 |                          if(!b.emtpy())
      |                                ^~~~~
      |                                empty
a.cc:26:34: error: request for member 'b' in 'y', which is of non-class type 'long long int'
   26 |                          y=min(y.b.front());
      |                                  ^
Language: C++

//#pragma GCC target("avx2")
//#pragma GCC optimize("O3")
 
//#include <x86intrin.h>
#include <algorithm>
#include <iostream>
#include <cstring>
#include <string>
#include <bitset> 
#include <vector>
#include <cmath>
#include <deque>     
#include <queue>
#include <iomanip>
#include <stack>
#include <map>
#include <set>
//#include <ordered_set>
//#include <ext/pb_ds/assoc_container.hpp>
//#include <ext/pb_ds/tree_policy.hpp>
 
//using namespace __gnu_pbds;
using namespace std;
 
//template<typename T> using ordered_set = tree <T, null_type, less<T>, rb_tree_tag, tree_order_statistics_node_update>;
     
#define F first
#define S second           
#define lb lower_bound               
#define ub upper_bound
#define pb push_back
#define pf push_front    
#define ppb pop_back
#define mp make_pair                                     
#define bpp __builtin_popcountll                                                                                        
#define sqr(x) ((x) * (x)) 
#define sz(x) (int)x.size()
#define all(x) x.begin(), x.end()
#define in insert
#define ppf pop_front
#define endl '\n'
#define int long long
 
typedef unsigned long long ull;
typedef long long ll;
typedef long double ld;
typedef pair <int, int> pii;
 
const int mod = (int)1e9 + 7;
const int N = (int)3e5 + 123;
const ll inf = (ll)1e18 + 1;
 
const double pi = acos (-1.0);
const double eps = 1e-9;                  
const int dx[] = {0, 0, 1, 0, -1};
const int dy[] = {0, 1, 0, -1, 0};

int n, m, k, a[N], b[N], ans, it1, it2, pref1[N], pref2[N];

inline void boost () {
   ios_base :: sync_with_stdio (0);
   cin.tie (0), cout.tie (0);
}
 
inline void Solve () {
   cin >> n >> m >> k;
   for (int i = 1; i <= n; i ++) cin >> a[i], pref1[i] = pref1[i - 1] + a[i];
   for (int i = 1; i <= m; i ++) cin >> b[i], pref2[i] = pref2[i - 1] + b[i];
   int it = m;
   for (int i = 0; i <= n; i ++) {
      if (pref[i] > k) break;
      while (it > 0 && pref[i] + pref[it] > k) it --;
      ans = max (ans, i + it);
   }
   cout << ans;
}               
 
signed main () {                                       
   #ifdef QWERTY
      freopen("input", "r", stdin);
   #endif
// freopen (".in", "r", stdin);    
// freopen (".out", "w", stdout);              
   boost ();
   int tt = 1;
   //cin >> tt;   
   while (tt --) {
      Solve ();
   }                                               
   return 0;      
}                   

Compiler output:
a.cc: In function 'void Solve()':
a.cc:71:11: error: 'pref' was not declared in this scope; did you mean 'pref2'?
   71 |       if (pref[i] > k) break;
      |           ^~~~
      |           pref2
a.cc:72:24: error: 'pref' was not declared in this scope; did you mean 'pref2'?
   72 |       while (it > 0 && pref[i] + pref[it] > k) it --;
      |                        ^~~~
      |                        pref2
Language: C++

#include <bits/stdc++.h>

#define rep(i,n) for(int i=0;i<(int)(n);i++)
#define FOR(i,n,m) for(int i=(int)(n); i<=(int)(m); i++)
#define RFOR(i,n,m) for(int i=(int)(n); i>=(int)(m); i--)
#define ITR(x,c) for(__typeof(c.begin()) x=c.begin();x!=c.end();x++)
#define RITR(x,c) for(__typeof(c.rbegin()) x=c.rbegin();x!=c.rend();x++)
#define setp(n) fixed << setprecision(n)

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; }

#define ll long long
#define vll vector<ll>
#define vi vector<int>
#define pll pair<ll,ll>
#define pi pair<int,int>

#define all(a) (a.begin()),(a.end())
#define rall(a) (a.rbegin()),(a.rend())
#define fi first
#define se second
#define pb push_back
#define mp make_pair
#define ins insert

using namespace std;

/* Some Libraries */

//-------------------------------------------------

int main(void)
{
    cin.tie(0);
    ios::sync_with_stdio(false);
    ll N,M,K; cin>>N>>M>>K;
    vll a(N),b(M);
    rep(i,N) cin>>a[i];
    rep(i,M) cin>>b[i];
    vll asum(N+1), bsum(M+1);
    rep(i,N) asum[i+1]=asum[i]+a[i];
    rep(i,M) bsum[i+1]=bsum[i]+b[i];
    int ans=0;
    rep(i,N+1){
        ll sum=0;
        sum += asum[i];
        if (sum > K) break;
        chmax(ans, i+upper_bound(all(bsum), K-sum)-bsum.begin()-1);
    }
    cout<<ans<<endl;
    return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:49:14: error: no matching function for call to 'chmax(int&, __gnu_cxx::__normal_iterator<long long int*, std::vector<long long int> >::difference_type)'
   49 |         chmax(ans, i+upper_bound(all(bsum), K-sum)-bsum.begin()-1);
      |         ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
a.cc:10:24: note: candidate: 'template<class T> bool chmax(T&, const T&)'
   10 | template<class T> bool chmax(T &a, const T &b) { if (a<b) { a=b; return 1; } return 0; }
      |                        ^~~~~
a.cc:10:24: note:   template argument deduction/substitution failed:
a.cc:49:14: note:   deduced conflicting types for parameter 'const T' ('int' and '__gnu_cxx::__normal_iterator<long long int*, std::vector<long long int> >::difference_type' {aka 'long int'})
   49 |         chmax(ans, i+upper_bound(all(bsum), K-sum)-bsum.begin()-1);
      |         ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Language: C++

#include<iostream>
using namespace std;

#define MAX 10000000

int divisors[MAX + 1] = { 0, };
int n;
long long sum = 0;

int main() {
	cin >> n;

	memset(divisors, 0, sizeof(divisors));

	for (int i = 1; i <= MAX; i++) {
		for (int j = 1; j <= MAX; j += i) {
			++divisors[j];
		}
	}
	
	for (int i = 1; i <= n; i++) {
		sum += divisors[i]*i;
	}

	cout << sum;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:13:9: error: 'memset' was not declared in this scope
   13 |         memset(divisors, 0, sizeof(divisors));
      |         ^~~~~~
a.cc:2:1: note: 'memset' is defined in header '<cstring>'; this is probably fixable by adding '#include <cstring>'
    1 | #include<iostream>
  +++ |+#include <cstring>
    2 | using namespace std;
Language: C++

/////////////////////////////////////////////////
/////             Give me AC!!!!            /////
/////////////////////////////////////////////////
//↑これじゃ気合いが足りない！
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////
/////             お願いしますACをくださいそうじゃないと僕泣きますお願いしますACをくださいJudge様....            /////
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////
#include<bits/stdc++.h>
using namespace std;
using ll = long long;
using ld = long double;
#define rep(i,N) for(int i = 0; i < (N); i++)
#define erep(i,N) for(int i = N - 1; i >= 0; i--)
const int MOD = 1000000007;
const int MAX = 100000;
const ld PI = (acos(-1));
using Graph = vector<vector<int>>;
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;}
typedef pair<int, int> P;
typedef pair<ll,ll> PLL;
ld rad(ld a) {return a * 180 / PI;}
const int dx[4] = {1, 0, -1, 0};//2次元グリッド上のx軸方向
const int dy[4] = {0, 1, 0, -1};//2次元グリッド上のy軸方向

struct UnionFind {
    vector<int> par;
    
    UnionFind(int n) : par(n, -1) { }

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

map<ll,ll> factorize_list;

void prime_factorize(ll N) {
    for (ll a = 2; a * a <= N; ++a) {
        if (N % a != 0) continue;
        ll ex = 0; // 指数

        // 割れる限り割り続ける
        while (N % a == 0) {
            ++ex;
            N /= a;
        }

        // その結果を push
        factorize_list[a] = ex;
    }

    // 最後に残った数について
    if (N != 1) factorize_list[N] = 1;
    return ;
}

//dpTable
vector<ll> dp(100,MAX);

ll modpow(ll a, ll n, ll mod) {
    ll res = 1;
    while (n > 0) {
        if (n & 1) res = res * a % mod;
        a = a * a % mod;
        n >>= 1;
    }
    return res;
}

ll mod(ll val, ll m) {
  ll res = val % m;
  if (res < 0) res += m;
  return res;
}

long long fac[MAX], finv[MAX], inv[MAX];

char upper(char c){
    if('a' <= c && c <= 'z'){
        c = c - ('a' - 'A');
    }
    return c;
}
char lower(char c){
    if('A' <= c && c <= 'Z'){
        c = c + ('a' - 'A');
    }
    return c;
}

const ll INF = 10000000000;
struct edge{ll to, cost;};

int main(){
    ll X;
    cin >> X;
    ll ans = 0;
    for (int i = 1; i <= X; i++) {
        ll Y = N / X;
        ans += Y * (Y + 1) * X / 2;
    }
    cout << ans << endl;
    return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:118:16: error: 'N' was not declared in this scope
  118 |         ll Y = N / X;
      |                ^
Language: C++

int main()
{
	IN( int, N );

	static int divisors[ 1 << 24 ];
	REP( i, 1, 1 << 24 )
	{
		for ( int j = 1; i * j <= N; ++j )
		{
			++divisors[ i * j ];
		}
	}

	LL res = 0;
	REP( i, 1, N + 1 )
	{
		res += LL( i ) * divisors[i];
	}
	cout << res << endl;

	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:3:13: error: expected primary-expression before 'int'
    3 |         IN( int, N );
      |             ^~~
a.cc:3:18: error: 'N' was not declared in this scope
    3 |         IN( int, N );
      |                  ^
a.cc:3:9: error: 'IN' was not declared in this scope
    3 |         IN( int, N );
      |         ^~
a.cc:6:14: error: 'i' was not declared in this scope
    6 |         REP( i, 1, 1 << 24 )
      |              ^
a.cc:6:9: error: 'REP' was not declared in this scope
    6 |         REP( i, 1, 1 << 24 )
      |         ^~~
a.cc:14:9: error: 'LL' was not declared in this scope
   14 |         LL res = 0;
      |         ^~
a.cc:19:9: error: 'cout' was not declared in this scope
   19 |         cout << res << endl;
      |         ^~~~
a.cc:19:17: error: 'res' was not declared in this scope
   19 |         cout << res << endl;
      |                 ^~~
a.cc:19:24: error: 'endl' was not declared in this scope
   19 |         cout << res << endl;
      |                        ^~~~
Language: C++

#include <bits/stdc++.h>
typedef long long ll;
using namespace std;
const ll N=1e7+5;
bool is_prime(ll n)
{
if(n<=1) return 0;
for(ll i=2;i*i<=n;i++)
if(n%i==0) return 0;
return 1;
}

int main()
{
ll n;
cin>>n;
////if(is_prime(n)) cout<<"Prime";
////else {
////        ll mx=INT_MIN;
////        ll cnt=0;
////  for(ll i=1;i*i<=n;i++){
////    if(n%i==0&&!(i&1))
////        mx=max(mx,i),cnt++;
////    if(n%(n/i)==0&&!((n/i)&1))
////        mx=max(mx,(n/i)),cnt++;
////  }
////  cout<<cnt;
////}
ll res=0;
for(ll i=1;i<=n;i++){
  ll cnt=0;
 for(ll j=1;(1LL)*j*j<=i;j++){
       if(i%j==0)cnt++;
if(i!=1){
    if(i%(i/j)==0&&(i/j)!=j)
        cnt++;
}
 }
 // cout<<"THIS"<<cnt<<" ";
   res+=(i*(1LL)cnt);
   }
cout<<res;


//cout<<"NOT";

    return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:40:17: error: expected ')' before 'cnt'
   40 |    res+=(i*(1LL)cnt);
      |         ~       ^~~
      |                 )
Language: C++

	#include<bits/stdc++.h>
	#include<vector>
	#include<string>
	#include<math.h>
	#define ll long long int 
	#define loop(a,b,i) for(int i=a;i<b;i++)
	#define loopr(a,b,i) for(int i=n-1;i>=0;i--)
	#define pb push_back
	#define db double
	#define mp make_pair
	#define endl "\n"
	#define f first
	#define se second
	#define all(x) x.begin(),x.end()
	#define MOD 1000000007
	#define N 8
	#define quick ios_base::sync_with_stdio(false);cin.tie(NULL)
	using namespace std;
	
//	bool isPrime(int n)
//	{
//    	if(n <= 1) return false;
//     	if(n == 2) return true;
//    	if(n % 2 == 0) return false;
//    	for(int j = 3; j <= sqrt(n); j++)
//		{
//    		if(n % j == 0) return false;
//    	}	
//    	return true;
//	}
	
	int countDivisors(int n) 
{ 
    int cnt = 0; 
    for (int i = 1; i <= sqrt(n); i++) { 
        if (n % i == 0) { 
             
            if (n / i == i) 
                cnt++; 
  
            else  
                cnt = cnt + 2; 
        } 
    } 
    return cnt; 
}
	
	int main() 
	{ 
		int n;
		cin>>n;
		int sum=0;
		for(ll i=1;i<=n;i++)
		{
			int x=div(i);
			sum=sum+i*x;
		}
		cout<<sum;
	return 0; 
	} 

Compiler output:
a.cc: In function 'int main()':
a.cc:55:34: error: no matching function for call to 'div(long long int&)'
   55 |                         int x=div(i);
      |                               ~~~^~~
In file included from /usr/include/c++/14/cstdlib:79,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:42,
                 from a.cc:1:
/usr/include/stdlib.h:992:14: note: candidate: 'div_t div(int, int)'
  992 | extern div_t div (int __numer, int __denom)
      |              ^~~
/usr/include/stdlib.h:992:14: note:   candidate expects 2 arguments, 1 provided
/usr/include/c++/14/cstdlib:219:3: note: candidate: 'lldiv_t __gnu_cxx::div(long long int, long long int)'
  219 |   div(long long __n, long long __d)
      |   ^~~
/usr/include/c++/14/cstdlib:219:3: note:   candidate expects 2 arguments, 1 provided
/usr/include/c++/14/cstdlib:181:3: note: candidate: 'ldiv_t std::div(long int, long int)'
  181 |   div(long __i, long __j) _GLIBCXX_NOTHROW { return ldiv(__i, __j); }
      |   ^~~
/usr/include/c++/14/cstdlib:181:3: note:   candidate expects 2 arguments, 1 provided
Language: C++

readInt() = parse(Int,readline())

sigma(a,n) = (n+1)n*a

function solve()
    ans = 0
    N = readInt()
    f = fill(0, N)
    for i in 1:N
        ans += sigma(i,div(N,i))
    end
    println(div(ans,2))
end

solve()

Compiler output:
a.cc:1:11: error: expected constructor, destructor, or type conversion before '=' token
    1 | readInt() = parse(Int,readline())
      |           ^
Language: C++

/* � Ashiq Uddin Pranto
   Department of Computer Science and Engineering
   BATCH 27
   University Of Rajshahi,Bangladesh
*/
#include<bits/stdc++.h>

#define ll long long
#define ld long double
#define FOR(x,y) for(ll i=x;i<=y;i++)
#define pb(x) push_back(x)
#define mp make_pair
#define pii pair<int,int>
#define pll pair<ll,ll>
#define vii vector<int>
#define vll vector<ll>
#define matrix(x) vector<vector<x>>
#define vss vector<string>
#define PI (2*acos(0.0))
#define sqr(x) ((x)*(x))
#define sf(a)   scanf("%d",&a)
#define sfl(a)  scanf("%lld",&a)
#define sff(a,b)    scanf("%d %d",&a,&b)
#define sffl(a,b)   scanf("%lld %lld",&a,&b)
#define sfff(a,b,c) scanf("%d %d %d",&a,&b,&c)
#define sfffl(a,b,c)    scanf("%lld %lld %lld",&a,&b,&c)
#define ms(a,b) memset(a, b, sizeof(a))
#define ff  first
#define ss  second
#define lcm(a, b)   ((a)*((b)/__gcd(a,b)))
#define all(a)  a.begin(),a.end()
#define readfile freopen("input.txt","r",stdin);
#define writefile freopen("output.txt","w",stdout);
#define fastio ios_base::sync_with_stdio(false); cin.tie(NULL);
#define gap " "
#define mx 104
#define inf (ll)1e9
#define WHITE 1
#define GRAY 2
#define BLACK 3
#define EMPTY_VALUE -1
#define mod 1000000007
#define MOD(a,b) (a%b + b)%b

using namespace std;

void __print(int x) {cerr << x;}
void __print(long x) {cerr << x;}
void __print(long long x) {cerr << x;}
void __print(unsigned x) {cerr << x;}
void __print(unsigned long x) {cerr << x;}
void __print(unsigned long long x) {cerr << x;}
void __print(float x) {cerr << x;}
void __print(double x) {cerr << x;}
void __print(long double x) {cerr << x;}
void __print(char x) {cerr << '\'' << x << '\'';}
void __print(const char *x) {cerr << '\"' << x << '\"';}
void __print(const string &x) {cerr << '\"' << x << '\"';}
void __print(bool x) {cerr << (x ? "true" : "false");}

template<typename T, typename V>
void __print(const pair<T, V> &x) {cerr << '{'; __print(x.first); cerr << ','; __print(x.second); cerr << '}';}
template<typename T>
void __print(const T &x) {int f = 0; cerr << '{'; for (auto &i: x) cerr << (f++ ? "," : ""), __print(i); cerr << "}";}
void _print() {cerr << "]\n";}
template <typename T, typename... V>
void _print(T t, V... v) {__print(t); if (sizeof...(v)) cerr << ", "; _print(v...);}
#ifndef ONLINE_JUDGE
#define debug(x...) cerr << "[" << #x << "] = ["; _print(x)
#else
#define debug(x...)
#endif


int main()
{
    //fastio
    ll x;
    sfl(x);
    vll a(x+2,0);
    ll ans = 0;
    for(ll i=1;i<=x;i++)
    {
        for(ll j=0;j<=n;j+=i) a[j]++;
    }
    for(ll i=1;i<=n;i++)
    {
        a[i]*=i;
        ans+=a[i];
    }
    cout<<ans<<endl;

    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:84:23: error: 'n' was not declared in this scope
   84 |         for(ll j=0;j<=n;j+=i) a[j]++;
      |                       ^
a.cc:86:19: error: 'n' was not declared in this scope
   86 |     for(ll i=1;i<=n;i++)
      |                   ^
Language: C++

#include <iostream>
using namespace std;
int f(int n) {
  vector<int> x(n + 1);
  int num = n;
  for (int i = 2; i <= n; i++) {
    while (num % i == 0) {
      x.at(i)++;
      num /= i;
    }
  }
  for (int i = 2; i <= n; i++) {
    ans *= x.at(i) + 1;
  }
  return ans;
}
int main() {
  int n;
  cin >> n;
  long long ans = 0;
  for (int i = 1; i <= n; i++) {
    ans += i * f(i);
  }
  cout << ans;
  return 0;
}

Compiler output:
a.cc: In function 'int f(int)':
a.cc:4:3: error: 'vector' was not declared in this scope
    4 |   vector<int> x(n + 1);
      |   ^~~~~~
a.cc:2:1: note: 'std::vector' is defined in header '<vector>'; this is probably fixable by adding '#include <vector>'
    1 | #include <iostream>
  +++ |+#include <vector>
    2 | using namespace std;
a.cc:4:10: error: expected primary-expression before 'int'
    4 |   vector<int> x(n + 1);
      |          ^~~
a.cc:8:7: error: 'x' was not declared in this scope
    8 |       x.at(i)++;
      |       ^
a.cc:13:5: error: 'ans' was not declared in this scope; did you mean 'abs'?
   13 |     ans *= x.at(i) + 1;
      |     ^~~
      |     abs
a.cc:13:12: error: 'x' was not declared in this scope
   13 |     ans *= x.at(i) + 1;
      |            ^
a.cc:15:10: error: 'ans' was not declared in this scope; did you mean 'abs'?
   15 |   return ans;
      |          ^~~
      |          abs
Language: C++

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

int main() {
  int n;
  cin >> n;
  vector<ll>f(n+1);
  int div=1;
  while (div<=n) {
    int i=1;
    while (div*i<=n) {
      f[div*i]+=div*i
      i++;
    }
    div++;
  }
  ll ans=0;
  for(int i=0 ; i<n+1 ; i++) {
    ans+=f[i];
  }
  cout << ans << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:14:22: error: expected ';' before 'i'
   14 |       f[div*i]+=div*i
      |                      ^
      |                      ;
   15 |       i++;
      |       ~
Language: C++

#include<iostream>
#include<vector>
#include<bits/stdc++.h>
using namespace std;
long long func(long long k)
{
  long long count=0;
  for(int i=1;i<=k;i++)
  {
    if(k%i==0)
      count++;
  }
  return count;
}
int main()
{
  long long n,i,sum=0;
  cin>>n;
  for(i=1;i<=n;i++)
  {
    sum=sum+(i*(func(i));
   }
   cout<<sum;
  
  return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:21:25: error: expected ')' before ';' token
   21 |     sum=sum+(i*(func(i));
      |             ~           ^
      |                         )
Language: C++

#include<cstdio>
#include<algorithm>
#include<cstring>
#include<iostream>
#include<vector>
#include<cmath>
#include<map> 
#include<string>
#include<queue>
#include<stack> 
#include<bitset>
#include<list>
#include<set>
#include<utility>
#include<iomanip>
#define IO ios::sync_with_stdio(false)
#define eps 1e-7
#define int long long
using namespace std;
int fa[10000007],ans,n;
signed main()
{
	cin>>n;
	for(int i=1;i*i<=n;i++)
	{
		for(int j=i;i*j<=n;j++)
		{
			fa[i*j]+=2;
			if(i==j)fa[i*j]--;
		}
	}
	for(int i=1;i<=n;i++)10000000
	{
		ans+=i*fa[i];
	}
	cout<<ans;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:32:38: error: expected ';' before '{' token
   32 |         for(int i=1;i<=n;i++)10000000
      |                                      ^
      |                                      ;
   33 |         {
      |         ~
Language: C++

int main(){
    ll n;cin>>n;
    ll ans = 0;
    for(int i=1;i<=n;i++){
        //n以下の最大のiの倍数
        ll last_term = (n/i)*i;
        ll num_term = (last_term-i)/i+1;
        ans += (i+last_term) * num_term / 2;
    }
    co(ans);
}

Compiler output:
a.cc: In function 'int main()':
a.cc:2:5: error: 'll' was not declared in this scope
    2 |     ll n;cin>>n;
      |     ^~
a.cc:2:10: error: 'cin' was not declared in this scope
    2 |     ll n;cin>>n;
      |          ^~~
a.cc:2:15: error: 'n' was not declared in this scope
    2 |     ll n;cin>>n;
      |               ^
a.cc:3:7: error: expected ';' before 'ans'
    3 |     ll ans = 0;
      |       ^~~~
      |       ;
a.cc:6:11: error: expected ';' before 'last_term'
    6 |         ll last_term = (n/i)*i;
      |           ^~~~~~~~~~
      |           ;
a.cc:7:11: error: expected ';' before 'num_term'
    7 |         ll num_term = (last_term-i)/i+1;
      |           ^~~~~~~~~
      |           ;
a.cc:8:9: error: 'ans' was not declared in this scope
    8 |         ans += (i+last_term) * num_term / 2;
      |         ^~~
a.cc:8:19: error: 'last_term' was not declared in this scope
    8 |         ans += (i+last_term) * num_term / 2;
      |                   ^~~~~~~~~
a.cc:8:32: error: 'num_term' was not declared in this scope
    8 |         ans += (i+last_term) * num_term / 2;
      |                                ^~~~~~~~
a.cc:10:8: error: 'ans' was not declared in this scope
   10 |     co(ans);
      |        ^~~
a.cc:10:5: error: 'co' was not declared in this scope
   10 |     co(ans);
      |     ^~
Language: C++

#include<iostream>
#include<cmath>
int main(void){
  int num,p;
  int ans = 0;
  cin >> num;
  for(int i = 1;i <= num;i ++){
    p = floor(num/i);
    p = i*p*(p+1)/2;
    ans = ans+p;
  }
  cout << ans << endl;
  
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:6:3: error: 'cin' was not declared in this scope; did you mean 'std::cin'?
    6 |   cin >> num;
      |   ^~~
      |   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:12:3: error: 'cout' was not declared in this scope; did you mean 'std::cout'?
   12 |   cout << ans << 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:12:18: error: 'endl' was not declared in this scope; did you mean 'std::endl'?
   12 |   cout << ans << 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)
      |     ^~~~