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

#include <math.h>
#include <stdio.h>
int n, sqrtN;
long long ans, d;
char buf[8],out[20];
k;
s;
X;
int main() {
    s = read(0, buf, 25000);
    while(buf[i++] - ' ')
        ;
    while(buf[i++] - ' ')
        ;
    for(;;) {
        k = buf[i++];
        if(k < '0') break;
        n = X * 10 + k - '0';
    }
    if(n == 1) {
        putchar(49);
    } else {
        const int sqrtN = sqrt(n);
        ans = -(long long)(sqrtN) * (sqrtN + 1) * (2 * sqrtN + 1) / 6;
        for(int i = 1; i <= sqrtN; ++i) {
            const int a = n / i;
            ans += ((long long)i * (i + a) * (a + 1 - i));
        }
        printf("%lld",ans);
    }
}

Compiler output:
main.c:6:1: warning: data definition has no type or storage class
    6 | k;
      | ^
main.c:6:1: error: type defaults to 'int' in declaration of 'k' [-Wimplicit-int]
main.c:7:1: warning: data definition has no type or storage class
    7 | s;
      | ^
main.c:7:1: error: type defaults to 'int' in declaration of 's' [-Wimplicit-int]
main.c:8:1: warning: data definition has no type or storage class
    8 | X;
      | ^
main.c:8:1: error: type defaults to 'int' in declaration of 'X' [-Wimplicit-int]
main.c: In function 'main':
main.c:10:9: error: implicit declaration of function 'read'; did you mean 'fread'? [-Wimplicit-function-declaration]
   10 |     s = read(0, buf, 25000);
      |         ^~~~
      |         fread
main.c:11:15: error: 'i' undeclared (first use in this function)
   11 |     while(buf[i++] - ' ')
      |               ^
main.c:11:15: note: each undeclared identifier is reported only once for each function it appears in
Language: C

#include <math.h>
#include <stdio.h>
using namespace std;
int n, sqrtN;
long long ans, d;
int main() {
    scanf("%d",&n);
    if(n == 1) {
        putchar(49);
    } else {
        const int sqrtN = sqrt(n);
        ans = -(long long)(sqrtN) * (sqrtN + 1) * (2 * sqrtN + 1) / 6;
        for(int i = 1; i <= sqrtN; ++i) {
            const int a = n / i;
            ans += ((long long)i * (i + a) * (a + 1 - i));
        }
        printf("%d",ans);
    }
}

Compiler output:
main.c:3:1: error: unknown type name 'using'
    3 | using namespace std;
      | ^~~~~
main.c:3:17: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'std'
    3 | using namespace std;
      |                 ^~~
Language: C

#include <cmath>
#include <stdio.h>
using namespace std;
int n, sqrtN;
long long ans, d;
int main() {
    scanf("%d",&n);
    if(n == 1) {
        putchar(49);
    } else {
        const int sqrtN = sqrt(n);
        ans = -(long long)(sqrtN) * (sqrtN + 1) * (2 * sqrtN + 1) / 6;
        for(int i = 1; i <= sqrtN; ++i) {
            const int a = n / i;
            ans += ((long long)i * (i + a) * (a + 1 - i));
        }
        printf("%d",ans);
    }
}

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

#include <cmath>
#include <iostream>
using namespace std;
int_fast32_t nn, n, sqrtN;
int_fast64_t ans, d;
main() {
    ios::sync_with_stdio(false);
    cin.tie(0);
    cout.tie(0);
    cin >> nn;
    const int_least32_t n = nn;
    if(n == 1) {
        putc_unlocked(49, stdout);
    } else {
        const int_fast32_t sqrtN = sqrt(n);
        ans = -(int_fast64_t)(sqrtN) * (sqrtN + 1) * (2 * sqrtN + 1) / 6;
        for(int i = 1; i <= sqrtN; ++i) {
            const int_fast32_t a = n / i;
            ans += ((int_fast64_t)i * (i + a) * (a + 1 - i));
        }
        cout << ans;
    }
}

Compiler output:
a.cc:4:1: error: 'int_fast32_t' does not name a type
    4 | int_fast32_t nn, n, sqrtN;
      | ^~~~~~~~~~~~
a.cc:5:1: error: 'int_fast64_t' does not name a type
    5 | int_fast64_t ans, d;
      | ^~~~~~~~~~~~
a.cc:6:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
    6 | main() {
      | ^~~~
a.cc: In function 'int main()':
a.cc:10:12: error: 'nn' was not declared in this scope; did you mean 'yn'?
   10 |     cin >> nn;
      |            ^~
      |            yn
a.cc:11:11: error: 'int_least32_t' does not name a type
   11 |     const int_least32_t n = nn;
      |           ^~~~~~~~~~~~~
a.cc:12:8: error: 'n' was not declared in this scope; did you mean 'yn'?
   12 |     if(n == 1) {
      |        ^
      |        yn
a.cc:15:15: error: 'int_fast32_t' does not name a type
   15 |         const int_fast32_t sqrtN = sqrt(n);
      |               ^~~~~~~~~~~~
a.cc:16:9: error: 'ans' was not declared in this scope; did you mean 'abs'?
   16 |         ans = -(int_fast64_t)(sqrtN) * (sqrtN + 1) * (2 * sqrtN + 1) / 6;
      |         ^~~
      |         abs
a.cc:16:17: error: 'int_fast64_t' was not declared in this scope
   16 |         ans = -(int_fast64_t)(sqrtN) * (sqrtN + 1) * (2 * sqrtN + 1) / 6;
      |                 ^~~~~~~~~~~~
a.cc:16:31: error: 'sqrtN' was not declared in this scope; did you mean 'sqrtl'?
   16 |         ans = -(int_fast64_t)(sqrtN) * (sqrtN + 1) * (2 * sqrtN + 1) / 6;
      |                               ^~~~~
      |                               sqrtl
a.cc:18:19: error: 'int_fast32_t' does not name a type
   18 |             const int_fast32_t a = n / i;
      |                   ^~~~~~~~~~~~
a.cc:19:35: error: expected ')' before 'i'
   19 |             ans += ((int_fast64_t)i * (i + a) * (a + 1 - i));
      |                    ~              ^
      |                                   )
Language: C++

#pragma region Macros
#pragma GCC optimize("O3")
#include <bits/stdc++.h>
#define ll long long
#define ld long double
#define rep2(i, a, b) for(ll i = a; i <= b; ++i)
#define rep(i, n) for(ll i = 0; i < n; ++i)
#define rep3(i, a, b) for(ll i = a; i >= b; --i)

int_fast32_t nn, n, sqrtN;
int_fast64_t ans, d;
char c;
char wr[15];
char *w = wr;
main() {
    char c;
    while(1) {
        c = getwchar_unlocked();
        if(c != '\n')
            nn = nn * 10 + c - '0';
        else
            break;
    }
    const int_least32_t n = nn;
    if(n >1000000) return;
    const int_fast32_t sqrtN = sqrt(n);
    ans = -(int_fast64_t)(sqrtN) * (sqrtN + 1) * (2 * sqrtN + 1) / 6;
    for(int i = 1; i <= sqrtN; ++i) {
        const int_fast32_t a = n / i;
        ans += ((int_fast64_t)i * (i + a) * (a + 1 - i));
    }
    while(ans) {
        *w = ans % 10 + '0';
        ans /= 10;
        w++;
    }
    while(1) {
        w--;
        putwchar_unlocked(*w);
        if(w == wr) break;
    }
}

Compiler output:
a.cc:15:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   15 | main() {
      | ^~~~
a.cc: In function 'int main()':
a.cc:25:20: error: return-statement with no value, in function returning 'int' [-fpermissive]
   25 |     if(n >1000000) return;
      |                    ^~~~~~
Language: C++

#pragma region Macros
#pragma GCC optimize("O3")
#include <bits/stdc++.h>
#define ll long long
#define ld long double
#define rep2(i, a, b) for(ll i = a; i <= b; ++i)
#define rep(i, n) for(ll i = 0; i < n; ++i)
#define rep3(i, a, b) for(ll i = a; i >= b; --i)

int nn,sqrtN;
ll ans;
int_fast32_t n,sqrtN;
int_fast64_t ans,d;
char c;
char wr[15];
char *w = wr;
main() {
    char c;
    while(1) {
        c = getwchar_unlocked();
        if(c!='\n')
            nn = nn * 10 + c - '0';
        else
            break;
    }
    const int n = nn;
    sqrtN = sqrt(n);
    ans = -(int_fast64_t)(sqrtN) * (sqrtN + 1) * (2 * sqrtN + 1) / 6;
    rep2(i, 1, sqrtN) { ans += (i * (i + (n / i)) * ((n / i) + 1 - i)); }
    while(ans) {
        *w = ans % 10 + '0';
        ans /= 10;
        w++;
    }
    while(1) {
        w--;
        putwchar_unlocked(*w);
        if(w == wr) break;
    }
}

Compiler output:
a.cc:12:16: error: conflicting declaration 'int_fast32_t sqrtN'
   12 | int_fast32_t n,sqrtN;
      |                ^~~~~
a.cc:10:8: note: previous declaration as 'int sqrtN'
   10 | int nn,sqrtN;
      |        ^~~~~
a.cc:13:14: error: conflicting declaration 'int_fast64_t ans'
   13 | int_fast64_t ans,d;
      |              ^~~
a.cc:11:4: note: previous declaration as 'long long int ans'
   11 | ll ans;
      |    ^~~
a.cc:17:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   17 | main() {
      | ^~~~
Language: C++

#include <stdlib.h>
#include <cmath>
#include <fstream>
#include <vector>
#include <string>
#include <algorithm>
#include <cmath>
#define rep(i,n) for(int i=1;i<=(int)(n);i++)
using namespace std;
typedef long long ll;
int main(){
    ll n;
    cin>>n;
    ll s=0;
    vector <ll> a(n);
    rep(i,n/2){
        rep(j,n){
            if(i*j<=n){
                ll x=i*j;
            a[x]++;
            }
        }
    }
    rep(i,n){
        s+=a[i]*i;
    }
    cout<<s<<endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:13:5: error: 'cin' was not declared in this scope
   13 |     cin>>n;
      |     ^~~
a.cc:8:1: note: 'std::cin' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
    7 | #include <cmath>
  +++ |+#include <iostream>
    8 | #define rep(i,n) for(int i=1;i<=(int)(n);i++)
a.cc:27:5: error: 'cout' was not declared in this scope
   27 |     cout<<s<<endl;
      |     ^~~~
a.cc:27:5: note: 'std::cout' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
Language: C++

#include<iostream>

using namespace std;

ll f[10000009];

int main()
{
  ll n, s=0;
  cin >> n;
  for(int i=1;i<=n;i++)
  {
    for(int j = i;j<=n;j+=i)
    {
      f[j]++;
    }
  }
  
  for(int i = 1;i<=n;i++)
  {
    s+=f[i]*i;
  }
  cout<<s<<endl;
  
}

Compiler output:
a.cc:5:1: error: 'll' does not name a type
    5 | ll f[10000009];
      | ^~
a.cc: In function 'int main()':
a.cc:9:3: error: 'll' was not declared in this scope
    9 |   ll n, s=0;
      |   ^~
a.cc:10:10: error: 'n' was not declared in this scope
   10 |   cin >> n;
      |          ^
a.cc:15:7: error: 'f' was not declared in this scope
   15 |       f[j]++;
      |       ^
a.cc:21:5: error: 's' was not declared in this scope
   21 |     s+=f[i]*i;
      |     ^
a.cc:21:8: error: 'f' was not declared in this scope
   21 |     s+=f[i]*i;
      |        ^
a.cc:23:9: error: 's' was not declared in this scope
   23 |   cout<<s<<endl;
      |         ^
Language: C++

#include<bits/stdc++.h>
#include<string.h>
using namespace std;
#define rep(a,b,c) for(ll a=b;a<c;a++)
#define ll long long
#define endl '\n'
#define pb(a) push_back(a)

int main(){
    //ios_base::sync_with_stdio(false);
    //cin.tie(NULL);
    int n;
    cin>>n;
    ll ans=0;
    ll divs[n+1]={0};
    rep(i,1,n+1){
        for(int j=i;j<n+1;j+=i){
            divs[j]++;
        }
    }
    rep(i,1,n+1){
        ans+=i*divs[i];
    }
    cout<<ans<<endl;


    return 0;
}
#include<bits/stdc++.h>
#include<string.h>
using namespace std;
#define rep(a,b,c) for(ll a=b;a<c;a++)
#define ll long long
#define endl '\n'
#define pb(a) push_back(a)

int main(){
    //ios_base::sync_with_stdio(false);
    //cin.tie(NULL);
    int n;
    cin>>n;
    ll ans=0;
    ll divs[n+1]={0};
    rep(i,1,n+1){
        for(int j=i;j<n+1;j+=i){
            divs[j]++;
        }
    }
    rep(i,1,n+1){
        ans+=i*divs[i];
    }
    cout<<ans<<endl;


    return 0;
}


Compiler output:
a.cc:37:5: error: redefinition of 'int main()'
   37 | int main(){
      |     ^~~~
a.cc:9:5: note: 'int main()' previously defined here
    9 | int main(){
      |     ^~~~
Language: C++

#include <bit/stdc++.h>
#define ll long long int
using namespace std;
int main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    cout.tie(0);
    int n;
    cin>>n;
    ll i,j,k,ans=0;
    for(i=1;i<=n;i++)
    { ll p=0;
        for(j=1;j*j<=i;j++)
        {
            if(i%j==0)
            {
                if(i/j==j)
                p++;
                else
                p+=2;
            }
        }
        ans+=i*p;
    }
    cout<<ans<<endl;
    
}

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

#include<bits/stdc++.h>
using namespace std;
int main()
{
	int n;
	cin>>n;
	long long ans=0;
	for(int i=1;i<=n;i++)
	{
		long long b=n/i;
		long long a=i;
		long long l=a+i*(b-1);
		ans+=b*(a+l)/2;
	}
	cout<<ans;
}

Compiler output:
main.c:1:9: fatal error: bits/stdc++.h: No such file or directory
    1 | #include<bits/stdc++.h>
      |         ^~~~~~~~~~~~~~~
compilation terminated.
Language: Java

import java.util.Scanner;

public class Main {
	public static void main(String[] args) n{
		Scanner scanner = new Scanner(System.in);
		int number = scanner.nextInt();
		long result = 0;
		for(int i = 1; i <= number; i++) {
			int temporal = number / i;
			result += temporal * (temporal + 1) / 2 * i;
		}
		System.out.println(result);
	}
}


Compiler output:
Main.java:4: error: ';' expected
	public static void main(String[] args) n{
	                                      ^
1 error
Language: C++

#include <bits/stdc++.h>
#define rep(i,n)for(long long i=0;i<(long long)(n);i++)
#define all(a) a.begin(), a.end()
using namespace std;
typedef long long ll;
typedef unsigned long long ull;
typedef pair<ll, ll> P;
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; }
 
const ll MOD=1e9+7;
const ll INF=1e18;
const int MAX=510000;
const double pi=acos(-1);
int dx[8] = {1,0,-1,0,1,1,-1,-1};
int dy[8] = {0,1,0,-1,-1,1,1,-1};
// int d[13]={0,31,28,31,30,31,30,31,31,30,31,30,31};


int main(){
  cin.tie(0);
  ios::sync_with_stdio(false); 
  
  ll n;
  cin >> n;
  ll res = 0;
  for(ll x=1;x<=n;x++){
    if(x*x>n)break;
    res += x*x;
    ll y_high=n/x;
    res += 2*x(y_high*(y_high+1)-x*(x+1));
  }
  cout << res << endl;

  return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:31:15: error: 'x' cannot be used as a function
   31 |     res += 2*x(y_high*(y_high+1)-x*(x+1));
      |              ~^~~~~~~~~~~~~~~~~~~~~~~~~~~
Language: C++

#include <bits/stdc++.h>
#define rep(i,n)for(long long i=0;i<(long long)(n);i++)
#define all(a) a.begin(), a.end()
using namespace std;
typedef long long ll;
typedef unsigned long long ull;
typedef pair<ll, ll> P;
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; }
 
const ll MOD=1e9+7;
const ll INF=1e18;
const int MAX=510000;
const double pi=acos(-1);
int dx[8] = {1,0,-1,0,1,1,-1,-1};
int dy[8] = {0,1,0,-1,-1,1,1,-1};
// int d[13]={0,31,28,31,30,31,30,31,31,30,31,30,31};


int main(){
  cin.tie(0);
  ios::sync_with_stdio(false); 
  
  ll n;
  cin >> n;
  ll res = 0;
  for(ll x=1;x<=n;x++){
    if(x*x>n)break;
    res += x*x;
    y_high=n/x;
    res += 2*x(y_high*(y_high+1)-x*(x+1));
  }
  cout << res << endl;

  return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:30:5: error: 'y_high' was not declared in this scope
   30 |     y_high=n/x;
      |     ^~~~~~
a.cc:31:41: error: 'x' cannot be used as a function
   31 |     res += 2*x(y_high*(y_high+1)-x*(x+1));
      |                                         ^
Language: C++

#include <bits/stdc++.h>
#define rep(i,n)for(long long i=0;i<(long long)(n);i++)
#define all(a) a.begin(), a.end()
using namespace std;
typedef long long ll;
typedef unsigned long long ull;
typedef pair<ll, ll> P;
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; }
 
const ll MOD=1e9+7;
const ll INF=1e18;
const int MAX=510000;
const double pi=acos(-1);
int dx[8] = {1,0,-1,0,1,1,-1,-1};
int dy[8] = {0,1,0,-1,-1,1,1,-1};
// int d[13]={0,31,28,31,30,31,30,31,31,30,31,30,31};


int main(){
  cin.tie(0);
  ios::sync_with_stdio(false); 
  
  ll n;
  cin >> n;
  ll res = 0;
  for(ll x=1;x<=n;x++){
    if(x*x>n)break;
    ans += x*x;
    y_high=n/x;
    ans += 2*x(y_high*(y_high+1)-x*(x+1));
  }
  cout << res << endl;

  return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:29:5: error: 'ans' was not declared in this scope; did you mean 'abs'?
   29 |     ans += x*x;
      |     ^~~
      |     abs
a.cc:30:5: error: 'y_high' was not declared in this scope
   30 |     y_high=n/x;
      |     ^~~~~~
a.cc:31:41: error: 'x' cannot be used as a function
   31 |     ans += 2*x(y_high*(y_high+1)-x*(x+1));
      |                                         ^
Language: C++

#include <bits/stdc++.h>
#define REP(i, n) for(int i = 0; i < n; i++)
#define REPR(i, n) for(int i = n; i >= 0; i--)
#define FOR(i, m, n) for(int i = m; i < n; i++)
#define INF 2e9
#define ALL(v) v.begin(), v.end()
using namespace std;
typedef long long ll;
int main()
{
  int N;
  cin >> N;

  ll ans = 0
  for(int i = 1; i <= N; i++) {
    for(int j = 1; j <= N; j++) {
      if (i % j == 0) ans += i
    }
  }

  cout << ans << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:15:3: error: expected ',' or ';' before 'for'
   15 |   for(int i = 1; i <= N; i++) {
      |   ^~~
a.cc:15:18: error: 'i' was not declared in this scope
   15 |   for(int i = 1; i <= N; i++) {
      |                  ^
Language: Java

import java.util.*;

public class d {

    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        SOD(n);

        long sum = 0;
        for (int i = 1; i <= n; i++) {
            sum += sod_arr[i] * i;
        }
        System.out.println(sum);
    }
    static long[] sod_arr;

    public static void SOD(long n) {
        sod_arr = new long[10000000 + 1];

        for (int i = 1; i <= n; i++) {
            for (int j = i; j <= n; j += i) {
                // System.out.println("j "+sod_arr[j]);
                sod_arr[j]++;
            }
        }
    }

}


Compiler output:
Main.java:3: error: class d is public, should be declared in a file named d.java
public class d {
       ^
1 error
Language: C++

#include <bits/stdc++.h>
using namespace std;
using ll = long long;
using vi=vector<int>;
using vvi=vector<vi>;
using vl=vector<ll>;
using vvl=vector<vl>;
using vb=vector<bool>;
using vvb=vector<vb>;
using pii = pair<int,int>;
using pli = pair<ll,int>;
using pll = pair<ll,ll>;
using vpii = vector<pii>;
using vpli = vector<pli>;
using vpll = vector<pll>;

#define rep(i, n) for(int i=0;i<(int)n;i++)
#define rep2(i, s, n) for(int i=(s);i<(int)n;i++)
#define pb=push_back
int INF=1e9+7;

vi prime;
int ans=0,size,N;

void dfs(ll pro,int ind,int num) {
  int count=0;
  if(num==size-1) {
    while(pro<=N) {
      ans+=pro*ind*(count+1);
      count++;
      pro*=p[num]
  }
  while(pro<=N) {
    dfs(pro,ind*(count+1),num+1);
    count++;
    pro*=p[num];
  }
}

int main() {
  cin >> N;
  
  vb is_prime(N+1, true);
  is_prime[0]=false; is_prime[1]=false;
  int n=2;
  while(n*n<=N) {
    if(!is_prime[n]) continue;
    for(int j=2; n*j<=N; j++) is_prime[n*j]=false;
    vi.pb(i);
    n++;
  }
  rep2(i,n,N+1) {
    if(is_prime[i]) prime.pb(i);
  }
  
  size=prime.size();
  dfs(1,1,0);
  
  cout << ans << endl;
}

Compiler output:
a.cc:19:9: warning: ISO C++11 requires whitespace after the macro name
   19 | #define pb=push_back
      |         ^~
a.cc: In function 'void dfs(ll, int, int)':
a.cc:27:11: error: reference to 'size' is ambiguous
   27 |   if(num==size-1) {
      |           ^~~~
In file included from /usr/include/c++/14/string:53,
                 from /usr/include/c++/14/bitset:52,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:52,
                 from a.cc:1:
/usr/include/c++/14/bits/range_access.h:272:5: note: candidates are: 'template<class _Tp, long unsigned int _Nm> constexpr std::size_t std::size(const _Tp (&)[_Nm])'
  272 |     size(const _Tp (&)[_Nm]) noexcept
      |     ^~~~
/usr/include/c++/14/bits/range_access.h:262:5: note:                 'template<class _Container> constexpr decltype (__cont.size()) std::size(const _Container&)'
  262 |     size(const _Container& __cont) noexcept(noexcept(__cont.size()))
      |     ^~~~
a.cc:23:11: note:                 'int size'
   23 | int ans=0,size,N;
      |           ^~~~
a.cc:31:12: error: 'p' was not declared in this scope
   31 |       pro*=p[num]
      |            ^
a.cc:36:10: error: 'p' was not declared in this scope
   36 |     pro*=p[num];
      |          ^
a.cc:40:9: warning: empty parentheses were disambiguated as a function declaration [-Wvexing-parse]
   40 | int main() {
      |         ^~
a.cc:40:9: note: remove parentheses to default-initialize a variable
   40 | int main() {
      |         ^~
      |         --
a.cc:40:9: note: or replace parentheses with braces to value-initialize a variable
a.cc:40:12: error: a function-definition is not allowed here before '{' token
   40 | int main() {
      |            ^
a.cc:60:2: error: expected '}' at end of input
   60 | }
      |  ^
a.cc:25:34: note: to match this '{'
   25 | void dfs(ll pro,int ind,int num) {
      |                                  ^
Language: Java

import java.util.Arrays;
import java.util.Scanner;

public class Main {
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		int N = sc.nextInt() ;
		long fillArray[] = new long[N + 1];
		Arrays.fill(fillArray, 1);
		for(int i = 2 ; i <= N ; ++i){
			for(int j = i ; j <= N ; j += i){
				fillArray[j]++;
			}
		}
		long ans = 0;
		for(int i = 1 ; i <= N ; ++i){
			ans += i * fillArray[i];
		}
		System.out.println(ret);
//		long te = System.currentTimeMillis();
//		System.out.println(te - ts);
	}
}


Compiler output:
Main.java:19: error: cannot find symbol
		System.out.println(ret);
		                   ^
  symbol:   variable ret
  location: class Main
1 error
Language: Java

import java.util.Arrays;
import java.util.Scanner;

public class Main {
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		int N = sc.nextInt() ;
		long fillArray[] = new long[N + 1];
		Arrays.fill(fillArray, 1);
		for(int i = 2 ; i <= N/2 ; ++i){
			for(int j = i ; j <= N ; j += i){
				fillArray[j]++;
			}
		}
		long ans = 0;
		for(int i = 1 ; i <= N ; ++i){
			ans += i * fillArray[i];
		}
		System.out.println(ret);
//		long te = System.currentTimeMillis();
//		System.out.println(te - ts);
	}
}


Compiler output:
Main.java:19: error: cannot find symbol
		System.out.println(ret);
		                   ^
  symbol:   variable ret
  location: class Main
1 error
Language: Java

import java.util.Arrays;
import java.util.Scanner;

public class Main {
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		int N = sc.nextInt() ;
		long fillArray[] = new long[N + 1];
		Arrays.fill(fillArray, 1);
		for(int i = 2 ; i <= N ; ++i){
			for(int j = i ; j <= N/2 ; j += i){
				fillArray[j]++;
			}
		}
		long ans = 0;
		for(int i = 1 ; i <= N ; ++i){
			ans += i * fillArray[i];
		}
		System.out.println(ret);
//		long te = System.currentTimeMillis();
//		System.out.println(te - ts);
	}
}


Compiler output:
Main.java:19: error: cannot find symbol
		System.out.println(ret);
		                   ^
  symbol:   variable ret
  location: class Main
1 error
Language: C++

#include <bits/stdc++.h>
using namespace std;
 
int main() {
  int N,cnt;
  cin >> N;
  for (int i=1; i=<N; i++) {
    int y = N/i;
    cnt += y*i;
  }
  cout << cnt;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:7:19: error: expected primary-expression before '<' token
    7 |   for (int i=1; i=<N; i++) {
      |                   ^
Language: C++

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

int main() {
  int N,cnt;
  cin >> N;
  for (int i=1; i=<N; i++) {
    int y = N/i;
    cnt += y*i
  }
  cout << cnt;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:7:19: error: expected primary-expression before '<' token
    7 |   for (int i=1; i=<N; i++) {
      |                   ^
a.cc:9:15: error: expected ';' before '}' token
    9 |     cnt += y*i
      |               ^
      |               ;
   10 |   }
      |   ~
Language: C++

#include<bits/stdc++.h>
#define test int t; cin>>t; while(t--)
#define fast ios::sync_with_stdio(false);
#define pi 3.14159265358979323846264338327950288419716939937510
#define pb push_back
#define max 10000002
typedef long long ll;
using namespace std;
int main()
{
    

        ll n;
        cin>>n;
         int a[max]={0};
        for(int i=1;i<=n;i++)
        {
            for(int j=1;i*j<=n;j++)
                {
                    a[i*j]++;
                }
        }

      ll ans=0;
      for(int i=1;i<=n;i++)
        ans+=a[i]*i;
     
      cout<<ans<<endl;

return 0;

}
#include<bits/stdc++.h>
#define test int t; cin>>t; while(t--)
#define fast ios::sync_with_stdio(false);
#define pi 3.14159265358979323846264338327950288419716939937510
#define pb push_back
#define max 10000002
typedef long long ll;
using namespace std;
int main()
{
    

        ll n;
        cin>>n;
         int a[max]={0};
        for(int i=1;i<=n;i++)
        {
            for(int j=1;i*j<=n;j++)
                {
                    a[i*j]++;
                }
        }

      ll ans=0;
      for(int i=1;i<=n;i++)
        ans+=a[i]*i;
     
      cout<<ans<<endl;

return 0;

}


Compiler output:
a.cc:41:5: error: redefinition of 'int main()'
   41 | int main()
      |     ^~~~
a.cc:9:5: note: 'int main()' previously defined here
    9 | int main()
      |     ^~~~
Language: C++

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

int main() {
  ll N;
  cin >> N;
  int cnt;
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:5:3: error: 'll' was not declared in this scope
    5 |   ll N;
      |   ^~
a.cc:6:10: error: 'N' was not declared in this scope
    6 |   cin >> N;
      |          ^
Language: C++

// https://atcoder.jp/contests/abc172/tasks/abc172_d
#include <bits/stdc++.h>
using namespace std;
#define int long long
#define REP(i, n) FOR(i, 0, n)
#define REPR(i, n) for (int i = n - 1; i >= 0; i--)
#define FOR(i, s, n) for (int i = (s), i##_len = (n); i < i##_len; ++i)
#define ALL(obj) (obj).begin(), (obj).end()
#define ALLR(obj) (obj).rbegin(), (obj).rend()
#define DIV(a, b) ((a - 1) / b + 1)

// 約数の個数
template <int_fast64_t max_N> struct Prime {
    int cnt[max_N] = {0};
    constexpr Prime() : cnt() {
        for (int_fast64_t i = 1; i < max_N; ++i) {
            for (int_fast64_t j = i; j < max_N; j += i)
                cnt[j]++;
        }
    }
};

signed main() {
    ios::sync_with_stdio(false);
    cin.tie(0);
    int N;
    cin >> N;
    // １の倍数＋２の倍数＋３の倍数＋・・・
    constexpr auto d = Prime<655350>();
    int ans = 0;
    FOR(i, 1, N + 1) { ans += d.cnt[i] * i; }
    cout << ans << endl;
    return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:29:38:   in 'constexpr' expansion of 'Prime<655350>()'
a.cc:17:13: error: 'constexpr' loop iteration count exceeds limit of 262144 (use '-fconstexpr-loop-limit=' to increase the limit)
   17 |             for (int_fast64_t j = i; j < max_N; j += i)
      |             ^~~
Language: C++

// https://atcoder.jp/contests/abc172/tasks/abc172_d
#include <bits/stdc++.h>
using namespace std;
#define int long long
#define REP(i, n) FOR(i, 0, n)
#define REPR(i, n) for (int i = n - 1; i >= 0; i--)
#define FOR(i, s, n) for (int i = (s), i##_len = (n); i < i##_len; ++i)
#define ALL(obj) (obj).begin(), (obj).end()
#define ALLR(obj) (obj).rbegin(), (obj).rend()
#define DIV(a, b) ((a - 1) / b + 1)

// 約数の個数
template <int_fast64_t max_N> struct Prime {
    int cnt[max_N];
    constexpr Prime() : cnt() {
        for (int_fast64_t i = 0; i < max_N; ++i)
            cnt[i] = 0;
        for (int_fast64_t i = 1; i < max_N; ++i) {
            for (int_fast64_t j = i; j < max_N; j += i)
                cnt[j]++;
        }
    }
};

signed main() {
    ios::sync_with_stdio(false);
    cin.tie(0);
    int N;
    cin >> N;
    // １の倍数＋２の倍数＋３の倍数＋・・・
    constexpr auto d = Prime<10000001>();
    int ans = 0;
    FOR(i, 1, N + 1) { ans += d.cnt[i] * i; }
    cout << ans << endl;
    return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:31:40:   in 'constexpr' expansion of 'Prime<10000001>()'
a.cc:16:9: error: 'constexpr' loop iteration count exceeds limit of 262144 (use '-fconstexpr-loop-limit=' to increase the limit)
   16 |         for (int_fast64_t i = 0; i < max_N; ++i)
      |         ^~~
Language: C++

For a positive integer 
X
, let 
f
(
X
)
 be the number of positive divisors of 
X
.

Given a positive integer 
N
, find 
∑
N
K
=
1
K
×
f
(
K
)
.

Compiler output:
a.cc:15:1: error: extended character ∑ is not valid in an identifier
   15 | ∑
      | ^
a.cc:21:1: error: extended character × is not valid in an identifier
   21 | ×
      | ^
a.cc:1:1: error: 'For' does not name a type
    1 | For a positive integer
      | ^~~
Language: C++

#include <bits/stdc++.h>
#define rep(i,n) for (int i=0;i < (n); ++i)
#define ALL(x) (x).begin(), (x).end()
using namespace std;
typedef long long ll;
typedef vector<int> V;
typedef pair<int,int> P;
typedef vector<vector<int>> Graph;


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

Compiler output:
a.cc: In function 'int main()':
a.cc:17:37: error: no 'operator++(int)' declared for postfix '++' [-fpermissive]
   17 |         for(int j = i;j<=n;j += i) d++;
      |                                    ~^~
Language: C++


#include<bits/stdc++.h>

using namespace std;

#define  fastio         ios:: sync_with_stdio(0);cin.tie(0);cout.tie(0);cout<<fixed;cout<<setprecision(10);
#define  randomINIT     mt19937 rnd(chrono::steady_clock::now().time_since_epoch().count());
#define  foo(i,a,n)     for(ll i = (a); i <= n; i++)
#define  frr(i,a,n)     for(ll i = (a); i >= n; i--)
#define  fo(i,n)        for(ll i = 0; i < n; i++)
#define  all(x)         (x).begin(),(x).end()
#define  mset(x,val)    memset(x,val,sizeof(x))
#define  newl           cout<<"\n"
#define  pb             push_back
#define  mp             make_pair
#define  s              second
#define  f              first
#define  dline          cerr<<"///REACHED///\n";
#define  deb1(x)        cerr<<#x<<" = "<<x<<'\n';
#define  deb2(x,y)      cerr<<'['<<#x<<','<<#y<<"] = "<<'['<<x<<','<<y<<']'<<'\n';
#define  deb3(x,y,z)    cerr<<'['<<#x<<','<<#y<<','<<#z<<"] = "<<'['<<x<<','<<y<<','<<z<<']'<<'\n';

typedef  long long             ll;
typedef  long double           ld;
typedef  pair<ll,ll>           pll;
typedef  vector<ll>            vll;
typedef  vector<pll>           vpll;

const ll   MOD   =  1e+9+7;
const ll   INF   =  0x7f7f7f7f7f7f7f7f;
const int  INFi  =  0x7f7f7f7f;
const ll   MAXN  =  1e+7+7;

int dx8[]={0,1,1,1,0,-1,-1,-1}, dy8[]={1,1,0,-1,-1,-1,0,1};
int dx4[]={0,1,0,-1}, dy4[]={1,0,-1,0};

//<<-----Declare Variable Here------->>//
int t=1;
ll n;
//<<-----Implement Functions Here---->>//
ll spf[MAXN]; 
void sieve() 
{ 
    spf[1] = 1; 
    for (ll i=2; i<MAXN; i++) 
  
       
        spf[i] = i; 
  
    
    for (ll i=4; i<MAXN; i+=2) 
        spf[i] = 2; 
  
    for (ll i=3; i*i<MAXN; i++) 
    { 
      
        if (spf[i] == i) 
        { 
             
            for (ll j=i*i; j<MAXN; j+=i) 
  
                
                if (spf[j]==j) 
                    spf[j] = i; 
        } 
    } 
} 
vector<ll> getFactorization(ll x) 
{ 
    vector<ll> ret; 
    while (x != 1) 
    { 
        ret.push_back(spf[x]); 
        x = x / spf[x]; 
    } 
    return ret; 
} 


//<<-----Start of Main--------------->>//
void MAIN(){
		cin>>n;
		sieve();
		ll ans = 1;
		for(ll i=2;i<=n;i++)
		{
			vll v = getFactorization(i);
			map<ll,ll>map1;
			for(auto it:v)map1[it]++;
			ll temp = 1;
			for(auto it:map1)temp*=(it.s+1);
			ans += i*temp;
		}
		cout<<ans<<endl;

}

int main(){
	fastio;randomINIT;

	//cin>>t;
	while(t--){
		MAIN();
	}
=
}

Compiler output:
a.cc: In function 'int main()':
a.cc:105:1: error: expected primary-expression before '=' token
  105 | =
      | ^
a.cc:106:1: error: expected primary-expression before '}' token
  106 | }
      | ^
Language: Java


import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.util.Scanner;

public final class D {

    public static void main(String[] args) {
        final Scanner in = new Scanner(new BufferedReader(new InputStreamReader(System.in)));
        final int n = Integer.parseInt(in.nextLine());
        long res = 0;
        final int[] count = new int[n + 1];
        for (int i = 1; i <= n; ++i) {
            for (int j = i; j <= n; j += i) {
                count[j]++;
            }
        }
        for (int i = 1; i <= n; ++i) {
            res += (long) count[i] * i;
        }
        System.out.println(res);
    }
}


Compiler output:
Main.java:6: error: class D is public, should be declared in a file named D.java
public final class D {
             ^
1 error
Language: C++

#include<iostream>
#include <vector>

using namespace std;

int main()
{
	int N;
  cin >> N;
	int ans = 1;
  int sum = 0;
for(int O = 1;O < N; O++){
  
	for (int i = 2; i <= O; i++) {
      vector<int> x(O + 1);
		while (O % i == 0) {
			x.at(i)++;
			O /= i;
		}
	}

	for (int i = 2; i <= O; i++){	
		ans *= x.at(i) + 1;
	}
       sum += O * ans;
}
  cout << sum << endl;
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:23:24: error: 'x' was not declared in this scope
   23 |                 ans *= x.at(i) + 1;
      |                        ^
Language: C

#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
const int maxn=1e7+10;
ll p[maxn];

int main()
{
	for(ll i=1;i<maxn;i++){
		for(ll j=i+i;j<maxn;j+=i) p[j]++;
	}
	ll n;cin>>n;ll ans=0;
	for(ll i=1;i<=n;i++){
		if(i==1) ans++;
		else ans+=(p[i]+1)*i;
	}
	cout<<ans;
	return 0;	
} 

Compiler output:
main.c:1:9: fatal error: bits/stdc++.h: No such file or directory
    1 | #include<bits/stdc++.h>
      |         ^~~~~~~~~~~~~~~
compilation terminated.
Language: C++

#include<bits/stdc++.h>
using namespace std;
long long cnt[10000005],x;
int main()
{
          cin>>x;
          for(int i=1;i<=x;++i)
	for(int j=i;j<=x;j+=i)cnt[j]++;
          for(int i=1;i<=x;++i)ans+=i*cnt[i];
          cout<<ans;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:9:32: error: 'ans' was not declared in this scope; did you mean 'abs'?
    9 |           for(int i=1;i<=x;++i)ans+=i*cnt[i];
      |                                ^~~
      |                                abs
a.cc:10:17: error: 'ans' was not declared in this scope; did you mean 'abs'?
   10 |           cout<<ans;
      |                 ^~~
      |                 abs
Language: C++

#include<bits/stdc++.h>
using namespace std;
int main(){
	cin>>n;
  	map<int,int> dp;
  	dp[1]=1;
  	long long int ans=1;
  	for(int i=1;i<=n;i++){
     	for(int j=i;j<=n;j+=i){
          dp[j]+=1;
        }
      ans=ans+i*dp[i];
     }
    }
  printf("%lld\n",ans);
return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:4:14: error: 'n' was not declared in this scope; did you mean 'yn'?
    4 |         cin>>n;
      |              ^
      |              yn
a.cc: At global scope:
a.cc:15:9: error: expected constructor, destructor, or type conversion before '(' token
   15 |   printf("%lld\n",ans);
      |         ^
a.cc:16:1: error: expected unqualified-id before 'return'
   16 | return 0;
      | ^~~~~~
a.cc:17:1: error: expected declaration before '}' token
   17 | }
      | ^
Language: C++

// Author : ps41
 
#include <bits/stdc++.h>
using namespace std;
#define ll int64_t
const ll M = 1e9 + 7, N = 1e6 + 5;
 
unordered_map<ll, ll> factorize(ll x)
{
    map<ll, ll> m;
    for (ll i = 2; i * i <= x; ++i)
        while (x % i == 0)
            m[i]++, x /= i;
    if (x > 1) m[x]++;
    return m;
}
 
int main()
{
    ios::sync_with_stdio(false), cin.tie(nullptr);
    ll n;
    cin >> n;
    ll ans = 1;
    for (ll i = 2; i <= n; i++)
    {
        unordered_map<ll,ll> mp = factorize(i);
        ll cnt = 1;
        for (auto &i: mp) cnt *= (i.second + 1);
        ans += i * cnt;
    }
    cout << ans;
}

Compiler output:
a.cc: In function 'std::unordered_map<long int, long int> factorize(int64_t)':
a.cc:15:12: error: could not convert 'm' from 'std::map<long int, long int>' to 'std::unordered_map<long int, long int>'
   15 |     return m;
      |            ^
      |            |
      |            std::map<long int, long int>
Language: C++

#include<iostream>
using namespace std;
int main()
{
	long long int i,n,sum = 0;
	for(i=1; i<=n; i++)
	{
		for(j=1; j<=n; j++)
		{
			if(i%j==0)
			{
				sum+=i;	
			}
		}
	}
	cout<<sum;
return 0;	
}

Compiler output:
a.cc: In function 'int main()':
a.cc:8:21: error: 'j' was not declared in this scope
    8 |                 for(j=1; j<=n; j++)
      |                     ^
Language: C++

#include <iostream>
#include <vector>
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) { // 素数で割り切れなくなるまで割っていく
	  x.at(i)++;　//割った個数を配列に足す
      num /= i;
	}
  }
	for (int i = 2; i <= n; i++){	
		ans *= x.at(i) + 1;　//それぞれを+1して掛けていく
	}
  return ans;
}
int main(){
  int n;
  unsigned long long ans=0;
  cin >> n;
  for(int i=0;i<n;i++){
    ans+=i*f(i);
  }
  cout << ans; 
}


Compiler output:
a.cc:10:21: error: extended character 　 is not valid in an identifier
   10 |           x.at(i)++;　//割った個数を配列に足す
      |                     ^
a.cc:15:36: error: extended character 　 is not valid in an identifier
   15 |                 ans *= x.at(i) + 1;　//それぞれを+1して掛けていく
      |                                    ^
a.cc: In function 'int f(int)':
a.cc:10:21: error: '\U00003000' was not declared in this scope
   10 |           x.at(i)++;　//割った個数を配列に足す
      |                     ^~
a.cc:15:17: error: 'ans' was not declared in this scope; did you mean 'abs'?
   15 |                 ans *= x.at(i) + 1;　//それぞれを+1して掛けていく
      |                 ^~~
      |                 abs
a.cc:15:36: error: '\U00003000' was not declared in this scope
   15 |                 ans *= x.at(i) + 1;　//それぞれを+1して掛けていく
      |                                    ^~
a.cc:17:10: error: 'ans' was not declared in this scope; did you mean 'abs'?
   17 |   return ans;
      |          ^~~
      |          abs
Language: C++

#include <iostream>
#include <vector>
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) { // 素数で割り切れなくなるまで割っていく
	  x.at(i)++;　//割った個数を配列に足す
      num /= i;
	}
  }

	for (int i = 2; i <= n; i++){	
		ans *= x.at(i) + 1;　//それぞれを+1して掛けていく
	}
  return ans;
}
int main(){
  int n;
  unsigned long long ans=0;
  cin >> n;
  for(int i=0;i<n;i++){
    ans+=i*prime_factorize(i);
  }
  cout << ans; 
}


Compiler output:
a.cc:10:21: error: extended character 　 is not valid in an identifier
   10 |           x.at(i)++;　//割った個数を配列に足す
      |                     ^
a.cc:16:36: error: extended character 　 is not valid in an identifier
   16 |                 ans *= x.at(i) + 1;　//それぞれを+1して掛けていく
      |                                    ^
a.cc: In function 'int f(int)':
a.cc:10:21: error: '\U00003000' was not declared in this scope
   10 |           x.at(i)++;　//割った個数を配列に足す
      |                     ^~
a.cc:16:17: error: 'ans' was not declared in this scope; did you mean 'abs'?
   16 |                 ans *= x.at(i) + 1;　//それぞれを+1して掛けていく
      |                 ^~~
      |                 abs
a.cc:16:36: error: '\U00003000' was not declared in this scope
   16 |                 ans *= x.at(i) + 1;　//それぞれを+1して掛けていく
      |                                    ^~
a.cc:18:10: error: 'ans' was not declared in this scope; did you mean 'abs'?
   18 |   return ans;
      |          ^~~
      |          abs
a.cc: In function 'int main()':
a.cc:25:12: error: 'prime_factorize' was not declared in this scope
   25 |     ans+=i*prime_factorize(i);
      |            ^~~~~~~~~~~~~~~
Language: C++

#include <bits/stdc++.h>

using namespace std;

int main() {
  long long n; cin >> n;
  for(long long i = 1; i <= n; i++) ans += (i * (n/i) * (1 + n/i))/2;
	cout << ans;
  return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:7:37: error: 'ans' was not declared in this scope; did you mean 'abs'?
    7 |   for(long long i = 1; i <= n; i++) ans += (i * (n/i) * (1 + n/i))/2;
      |                                     ^~~
      |                                     abs
a.cc:8:17: error: 'ans' was not declared in this scope; did you mean 'abs'?
    8 |         cout << ans;
      |                 ^~~
      |                 abs
Language: C++

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

int f(n){
  vector<int> x(n + 1);
  for (int i = 2; i <= n; i++) {
	while (num%i == 0) { // 素数で割り切れなくなるまで割っていく
	  x.at(i)++;　//割った個数を配列に足す
      num /= i;
	}
  }

	for (int i = 2; i <= n; i++){	
		ans *= x.at(i) + 1;　//それぞれを+1して掛けていく
	}
  return ans;
}
int main(){
  int n;
  unsigned long long ans=0;
  cin >> n;
  for(int i=0;i<n;i++){
    ans+=i*prime_factorize(i);
  }
  cout << ans; 
}


Compiler output:
a.cc:9:21: error: extended character 　 is not valid in an identifier
    9 |           x.at(i)++;　//割った個数を配列に足す
      |                     ^
a.cc:15:36: error: extended character 　 is not valid in an identifier
   15 |                 ans *= x.at(i) + 1;　//それぞれを+1して掛けていく
      |                                    ^
a.cc:5:7: error: 'n' was not declared in this scope
    5 | int f(n){
      |       ^
a.cc: In function 'int main()':
a.cc:24:12: error: 'prime_factorize' was not declared in this scope
   24 |     ans+=i*prime_factorize(i);
      |            ^~~~~~~~~~~~~~~
Language: C++

#include <bits/stdc++.h>
using namespace std;
using ll=long long;
typedef pair<int,int>P;
 
int main() {
     ll y;
	ll ans = 1;
	cin >> y;
  ll count=0;

  for(ll n=1;n<=y;n++){
	vector<ll> x(n + 1);
	ll num = n; 

	for (ll i = 2; i <= n; i++) {
		while (num%i == 0) { 
			x.at(i)++;　
			num /= i;
		}
	}

	for (ll i = 2; i <= n; i++)
	{	
		ans *= x.at(i) + 1;　
	}
	count+=ans*n;
  }
	cout<<count<<endl;
  
}

Compiler output:
a.cc:18:35: error: extended character 　 is not valid in an identifier
   18 |                         x.at(i)++;　
      |                                   ^
a.cc:25:36: error: extended character 　 is not valid in an identifier
   25 |                 ans *= x.at(i) + 1;　
      |                                    ^
a.cc: In function 'int main()':
a.cc:18:35: error: '\U00003000' was not declared in this scope
   18 |                         x.at(i)++;　
      |                                   ^~
a.cc:25:36: error: '\U00003000' was not declared in this scope
   25 |                 ans *= x.at(i) + 1;　
      |                                    ^~
Language: C++

#include <bits/stdc++.h>
using namespace std;
using ll=long long;
typedef pair<int,int>P;
 
int main() {
     ll x;
	ll ans = 1;
	cin >> x;
  ll count=0;

  for(ll n=1;n<=x;n++){
	vector<ll> x(n + 1);
	ll num = n; 

	for (ll i = 2; i <= n; i++) {
		while (num%i == 0) { 
			x.at(i)++;　
			num /= i;
		}
	}

	for (ll i = 2; i <= n; i++)
	{	
		ans *= x.at(i) + 1;　
	}
	count+=ans*n;
  }
	cout<<count<<endl;
  
}

Compiler output:
a.cc:18:35: error: extended character 　 is not valid in an identifier
   18 |                         x.at(i)++;　
      |                                   ^
a.cc:25:36: error: extended character 　 is not valid in an identifier
   25 |                 ans *= x.at(i) + 1;　
      |                                    ^
a.cc: In function 'int main()':
a.cc:18:35: error: '\U00003000' was not declared in this scope
   18 |                         x.at(i)++;　
      |                                   ^~
a.cc:25:36: error: '\U00003000' was not declared in this scope
   25 |                 ans *= x.at(i) + 1;　
      |                                    ^~
Language: C++

#include <bits/stdc++.h>
using namespace std;
#define rep(i,n)for(int i=0;i<(n);i++)
#define ALL(a) (a).begin(), (a).end()
#define RALL(a) (a).rbegin(), (a).rend()
#define pb push_back
using ll = long long;
using P = pair<ll, ll>;

struct Sieve {
  int n;
  vector<int> f, primes;
  Sieve(int n=1):n(n), f(n+1) {
    f[0] = f[1] = -1;
    for (ll i = 2; i <= n; ++i) {
      if (f[i]) continue;
      primes.push_back(i);
      f[i] = i;
      for (ll j = i*i; j <= n; j += i) {
        if (!f[j]) f[j] = i;
      }
    }
  }
  bool isPrime(int x) { return f[x] == x;}
  vector<int> factorList(int x) {
    vector<int> res;
    while (x != 1) {
      res.push_back(f[x]);
      x /= f[x];
    }
    return res;
  }
  vector<P> factor(int x) {
    vector<int> fl = factorList(x);
    if (fl.size() == 0) return {};
    vector<P> res(1, P(fl[0], 0));
    for (int p : fl) {
      if (res.back().first == p) {
        res.back().second++;
      } else {
        res.emplace_back(p, 1);
      }
    }
    return res;
  }
  vector<pair<ll,int>> factor(ll x) {
    vector<pair<ll,int>> res;
    for (int p : primes) {
      int y = 0;
      while (x%p == 0) x /= p, ++y;
      if (y != 0) res.emplace_back(p,y);
    }
    if (x != 1) res.emplace_back(x,1);
    return res;
  }
};

vector<P> prime_factor(int n){
    vector<P> res;
    for(int i = 2; i * i <= n; ++i){
        if(n % i != 0) continue;
        int cnt = 0;
        while(n % i == 0){
            n /= i;
            cnt++;
        }
        res.push_back(P(i, cnt));
    }
    if(n != 1) res.push_back(P(n, 1));//nが素数の時
    return res;
}

int main(){
    ll n; cin >> n;
    ll ans = 0;
    Sieve s(n+5);
    for(ll k = n; k >= 1; k--){
        vector<P> vec = s.factor(k);
        ll num = 1;
        for(auto p : vec){
            num *= (p.second + 1);
        }
        ans += k * num;
    }
    cout << ans << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:78:33: error: conversion from 'vector<pair<[...],int>>' to non-scalar type 'vector<pair<[...],long long int>>' requested
   78 |         vector<P> vec = s.factor(k);
      |                         ~~~~~~~~^~~
Language: C++

include<bits/stdc++.h>
using namespace std;
using Graph=vector<vector<int>>;
#define rep(i,n) for(int i=0;i<(int)(n);i++)
typedef long long ll;
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;
}
ll yakusuu(ll a){
    ll res=0;
    for(ll i=1;i*i<=a;i++){
        if(a%i==0){
            res++;
            if(i*i!=a){
                res++;
            }
        }
    }
    return res;
}
int main(){
    ll N;cin>>N;
    ll ans=0;
    for(ll i=1;i<=N;i++){
        ans+=i*yakusuu(i)
    }
    cout<<ans<<endl;
}

Compiler output:
a.cc:1:1: error: 'include' does not name a type
    1 | include<bits/stdc++.h>
      | ^~~~~~~
a.cc:3:13: error: 'vector' does not name a type
    3 | using Graph=vector<vector<int>>;
      |             ^~~~~~
a.cc: In function 'int main()':
a.cc:33:10: error: 'cin' was not declared in this scope
   33 |     ll N;cin>>N;
      |          ^~~
a.cc:36:26: error: expected ';' before '}' token
   36 |         ans+=i*yakusuu(i)
      |                          ^
      |                          ;
   37 |     }
      |     ~                     
a.cc:38:5: error: 'cout' was not declared in this scope
   38 |     cout<<ans<<endl;
      |     ^~~~
a.cc:38:16: error: 'endl' was not declared in this scope
   38 |     cout<<ans<<endl;
      |                ^~~~