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

#include <stdio.h>
int main()
{
	int i,sum=0;
	for(i=1;i<=100;i++)
	sum=sum+i;
	printf("%d,sum);
}

Compiler output:
a.cc:7:16: warning: missing terminating " character
    7 |         printf("%d,sum);
      |                ^
a.cc:7:16: error: missing terminating " character
    7 |         printf("%d,sum);
      |                ^~~~~~~~~
a.cc: In function 'int main()':
a.cc:8:1: error: expected primary-expression before '}' token
    8 | }
      | ^
Language: C++

#include<stdio.h>
void main()
{
	int i,sum;
	sum=0;
	for(i=1;i<=100;i++)
		sum=sum+i;
		printf("1+2+3...+100=%d\n",sum);
}

Compiler output:
a.cc:2:1: error: '::main' must return 'int'
    2 | void main()
      | ^~~~
Language: C++

#include<stdio.h>
int  main()
{
       int  i,n,sum;
       printf("Input  n:")
       scanf("%d",&n);
       sum=0;
       for(i = 1;i <= n;i++)
   ｛
      sum = sum + i;
      ｝
       printf("sum = %d\n",sum);
}

Compiler output:
a.cc: In function 'int main()':
a.cc:5:27: error: expected ';' before 'scanf'
    5 |        printf("Input  n:")
      |                           ^
      |                           ;
    6 |        scanf("%d",&n);
      |        ~~~~~               
a.cc:9:4: error: '\U0000ff5b' was not declared in this scope
    9 |    ｛
      |    ^~
a.cc:11:7: error: '\U0000ff5d' was not declared in this scope
   11 |       ｝
      |       ^~
Language: C++

#include<stdio.h>
int  main()
{
       int  i,n,sum;
       printf("input  n:");
       scanf("%d",&n);
       sum=0;
       for(i = 1;i <= n;i++)
   ｛
      sum=sum+i;
      ｝
       printf("sum = %d\n",sum);
       return  0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:9:4: error: '\U0000ff5b' was not declared in this scope
    9 |    ｛
      |    ^~
a.cc:11:7: error: '\U0000ff5d' was not declared in this scope
   11 |       ｝
      |       ^~
Language: C++

#include<stdio.h>
int  main()       
       int  i,1 <=n <=100,sum=0;
       for(i = 1;i <= n;i++)
   ｛
      sum=sum+i;
      ｝
       printf("sum = %d\n",sum);
       return  0;
}

Compiler output:
a.cc:3:8: error: expected initializer before 'int'
    3 |        int  i,1 <=n <=100,sum=0;
      |        ^~~
a.cc:4:8: error: expected unqualified-id before 'for'
    4 |        for(i = 1;i <= n;i++)
      |        ^~~
a.cc:4:18: error: 'i' does not name a type
    4 |        for(i = 1;i <= n;i++)
      |                  ^
a.cc:4:25: error: 'i' does not name a type
    4 |        for(i = 1;i <= n;i++)
      |                         ^
a.cc:7:7: error: '\U0000ff5d' does not name a type
    7 |       ｝
      |       ^~
a.cc:9:8: error: expected unqualified-id before 'return'
    9 |        return  0;
      |        ^~~~~~
a.cc:10:1: error: expected declaration before '}' token
   10 | }
      | ^
Language: C++

#include<stdio.h>
int  main()
{
       int  i,n,sum;
       printf("input  n:");
       scanf("%d",&n);
       sum=0;1 <= n <= 100;
       for(i = 1;i <= n;i++)
   ｛
      sum=sum+i;
      ｝
       printf("sum = %d\n",sum);
       return  0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:9:4: error: '\U0000ff5b' was not declared in this scope
    9 |    ｛
      |    ^~
a.cc:11:7: error: '\U0000ff5d' was not declared in this scope
   11 |       ｝
      |       ^~
Language: C++

#include<stdio.h>
int  main()
{
       int  i,n,sum;
       printf("input  n:",0<n<101);
       scanf("%d",&n);
       sum=0;
       for(i = 1;i <= n;i++)
   ｛
      sum=sum+i;
      ｝
       printf("sum = %d\n",sum);
       return  0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:9:4: error: '\U0000ff5b' was not declared in this scope
    9 |    ｛
      |    ^~
a.cc:11:7: error: '\U0000ff5d' was not declared in this scope
   11 |       ｝
      |       ^~
Language: C++

#include<stdio.h>
int  main()
{
       int  i,n,sum;
       printf("input  n:",0<n<101);
       scanf("%d",&n);
       sum=0;
       for(i = 1;i <= 100;i++)
   ｛
      sum=sum+i;
      ｝
       printf("sum = %d\n",sum);
       return  0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:9:4: error: '\U0000ff5b' was not declared in this scope
    9 |    ｛
      |    ^~
a.cc:11:7: error: '\U0000ff5d' was not declared in this scope
   11 |       ｝
      |       ^~
Language: C++

#include<stdio.h>
int  main()
{
       int  i,sum = 0;
       for(i = 1;i <= 100;i++)
   ｛
      sum=sum+i;
      ｝
       printf("sum = %d\n",sum);
}

Compiler output:
a.cc: In function 'int main()':
a.cc:6:4: error: '\U0000ff5b' was not declared in this scope
    6 |    ｛
      |    ^~
a.cc:8:7: error: '\U0000ff5d' was not declared in this scope
    8 |       ｝
      |       ^~
Language: C++

#include<iostream>
using namespace std;
int main(void){
  int a,sum = 0;
  cin >> a;
  for(int i = 1;i =< a;i++){
    sum += i;
  }
  cout << sum << endl;
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:6:20: error: expected primary-expression before '<' token
    6 |   for(int i = 1;i =< a;i++){
      |                    ^
Language: C++

#include<stdio.h>
main()
{
	int N,j,sum;
    printf("Input n:");
    scanf("%d",&N);
    sum = 0;
    j = 1;
    while(j <= N)
    {
    	sum = sum + j;
    	j++{
    }
    printf("sum=%d\n",sum);
    return 0;
}


Compiler output:
a.cc:2:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
    2 | main()
      | ^~~~
a.cc: In function 'int main()':
a.cc:12:12: error: expected ';' before '{' token
   12 |         j++{
      |            ^
      |            ;
a.cc:16:2: error: expected '}' at end of input
   16 | }
      |  ^
a.cc:3:1: note: to match this '{'
    3 | {
      | ^
Language: C++

#include<stdio.h>
main()
{
	int N,j,sum;
    printf("Input n:");
    scanf("%d",&N);
    sum = 0;
    j = 1;
    while(j <= N)
    s
    	sum = sum + j;
    	j++;
    }
    printf("sum=%d\n",sum);
    return 0;
}

Compiler output:
a.cc:2:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
    2 | main()
      | ^~~~
a.cc: In function 'int main()':
a.cc:10:5: error: 's' was not declared in this scope
   10 |     s
      |     ^
a.cc: At global scope:
a.cc:14:11: error: expected constructor, destructor, or type conversion before '(' token
   14 |     printf("sum=%d\n",sum);
      |           ^
a.cc:15:5: error: expected unqualified-id before 'return'
   15 |     return 0;
      |     ^~~~~~
a.cc:16:1: error: expected declaration before '}' token
   16 | }
      | ^
Language: C++

#include <stdio.h>

main()

{

        int sum=0;

        for(int i=1;i<=100;i++)
{
        sum=sum+i;

}

Compiler output:
a.cc:3:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
    3 | main()
      | ^~~~
a.cc: In function 'int main()':
a.cc:13:2: error: expected '}' at end of input
   13 | }
      |  ^
a.cc:5:1: note: to match this '{'
    5 | {
      | ^
Language: C++

#include <iostream.h>

int main()

{

           int sum=0;

           for(int i=1;i<=100;i++)
{
           sum=sum+i;

}
           return 0;
}

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

#include <stdio.h>
main()

{

int sum=0;

for(int i=1;i<=100;i++)

{

sum=sum+i;

}

cout<<sum<<endl;

return 0;

}

Compiler output:
a.cc:2:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
    2 | main()
      | ^~~~
a.cc: In function 'int main()':
a.cc:16:1: error: 'cout' was not declared in this scope
   16 | cout<<sum<<endl;
      | ^~~~
a.cc:16:12: error: 'endl' was not declared in this scope
   16 | cout<<sum<<endl;
      |            ^~~~
Language: C++

#include <iostream.h>

int main()

{

int sum=0;

for(int i=1;i<=100;i++)

{

sum=sum+i;

}

cout<<sum<<endl;

return 0;

}

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

#include<stdio.h>
main()
{
        int  a;
        for(a=1;a<=100;a++)
        printf(“a=%d:”,a);
        return  0;
}

Compiler output:
a.cc:6:16: error: extended character “ is not valid in an identifier
    6 |         printf(“a=%d:”,a);
      |                ^
a.cc:6:22: error: extended character ” is not valid in an identifier
    6 |         printf(“a=%d:”,a);
      |                      ^
a.cc:2:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
    2 | main()
      | ^~~~
a.cc: In function 'int main()':
a.cc:6:16: error: '\U0000201ca' was not declared in this scope
    6 |         printf(“a=%d:”,a);
      |                ^~
a.cc:6:19: error: expected primary-expression before '%' token
    6 |         printf(“a=%d:”,a);
      |                   ^
a.cc:6:21: error: found ':' in nested-name-specifier, expected '::'
    6 |         printf(“a=%d:”,a);
      |                     ^
      |                     ::
a.cc:6:20: error: 'd' has not been declared
    6 |         printf(“a=%d:”,a);
      |                    ^
Language: C++

#include<studio.h>
main()
{
        int  a;
        for(a=1;a<=100;a++)
        printf(“a=%d:”,a);
        return  0;
}

Compiler output:
a.cc:1:9: fatal error: studio.h: No such file or directory
    1 | #include<studio.h>
      |         ^~~~~~~~~~
compilation terminated.
Language: C

#include<stdio.h>
int main(){
  int n;
  scanf("%d",&n);
  printf("%d",(n+1)n/2);
  return 0;
}


Compiler output:
main.c: In function 'main':
main.c:5:20: error: expected ')' before 'n'
    5 |   printf("%d",(n+1)n/2);
      |         ~          ^
      |                    )
Language: C

#include<stdio.h>
int main(){
  int n;
  printf("幼稚園児の人数を入力してください");
  scanf("%d",&n);
  printf("%d",(n+1)n/2);
  return 0;
}

Compiler output:
main.c: In function 'main':
main.c:6:20: error: expected ')' before 'n'
    6 |   printf("%d",(n+1)n/2);
      |         ~          ^
      |                    )
Language: C++

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

int main() {
  int a;
  cin >> a;
  cout << n*(n+1)/2 << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:7:11: error: 'n' was not declared in this scope
    7 |   cout << n*(n+1)/2 << endl;
      |           ^
Language: C++

#include<bits\stdc++.h>

using namespace std;

int main()
{
    int n,sum=0;

    cin>>n;

    for(int i=1;i<=n;i++)
    {
        sum+=i;
    }

    cout<<sum<<endl;

    return 0;
}


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

#include<bits/sydc++.h>
using namespace std;
int main(){
int a,b=0;
cin>>a;
for(int i=1;i<=a;i++){
b=b+a;
}
cout<<b<<"\n";
}

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

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

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

Compiler output:
a.cc: In function 'int main()':
a.cc:7:3: error: 'ans' was not declared in this scope; did you mean 'abs'?
    7 |   ans = ((1 + n)*n)/2;
      |   ^~~
      |   abs
Language: C

#include <stdio.h>
int main(){
	int N;
	int sum=0;
  　//Nの値を入力する
	scanf("%d",&N);
    if(1<=N&&N<=100){
	  for(int i=1;i<=N;i++){
    	  sum=sum+i;
      }
  	  printf("%d",sum);
    }
    return 0;
    
}

Compiler output:
main.c: In function 'main':
main.c:5:3: error: stray '\343' in program
    5 |   <U+3000>//N<U+306E><U+5024><U+3092><U+5165><U+529B><U+3059><U+308B>
      |   ^~~~~~~~
Language: C++

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

int main() {
  int N;
  cin >> N;
  int sum = 0;
  for (i = 1; i < N+1; i++)
    sum += i;
  cout << sum << endl;
}


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

import java.util.Scanner;

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

        int x = 0;

        for(int i = 1; i <= n; i++) {
            x += i;
        }

        System.out.println(x);
    }
}

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

#include<stdio.h>
int main(){
  int n;
  scanf("%d",&n);
  printf("%d",n*(n+1)/2;);
  return 0;
}

Compiler output:
main.c: In function 'main':
main.c:5:24: error: expected ')' before ';' token
    5 |   printf("%d",n*(n+1)/2;);
      |         ~              ^
      |                        )
Language: C++

#include<bits/sdc++.h>
using namespace std;
int main()
{
  int N;
  cin >> N;
  int ans;
  for(int i=1; i<=N; i++)
    ans+=i;
  cout << ans << endl;
}

  

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

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

int main() {
  int N;
  int A = 0;
  cin >> N;
  for (int i = 0, i < N, i++){
    A == A + i;
  }
  cout << A << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:9:20: error: expected ';' before '<' token
    9 |   for (int i = 0, i < N, i++){
      |                    ^~
      |                    ;
a.cc:9:21: error: expected primary-expression before '<' token
    9 |   for (int i = 0, i < N, i++){
      |                     ^
a.cc:9:29: error: expected ';' before ')' token
    9 |   for (int i = 0, i < N, i++){
      |                             ^
      |                             ;
Language: C++

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

int main() {
  int N;
  int A = 0;
  cin >> N;
  for ( i = 0, i < N, i++){
    A == A + i;
  }
  cout << A << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:9:9: error: 'i' was not declared in this scope
    9 |   for ( i = 0, i < N, i++){
      |         ^
a.cc:13:1: error: expected primary-expression before '}' token
   13 | }
      | ^
a.cc:12:21: error: expected ')' before '}' token
   12 |   cout << A << endl;
      |                     ^
      |                     )
   13 | }
      | ~                    
a.cc:9:7: note: to match this '('
    9 |   for ( i = 0, i < N, i++){
      |       ^
a.cc:13:1: error: expected primary-expression before '}' token
   13 | }
      | ^
Language: C++

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

int main() {
  int N;
  int A = 0;
  cin >> N;
  for ( i = 0, i < N, 1++){
    A == A + i;
  }
  cout << A << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:9:9: error: 'i' was not declared in this scope
    9 |   for ( i = 0, i < N, 1++){
      |         ^
a.cc:9:23: error: lvalue required as increment operand
    9 |   for ( i = 0, i < N, 1++){
      |                       ^
a.cc:13:1: error: expected primary-expression before '}' token
   13 | }
      | ^
a.cc:12:21: error: expected ')' before '}' token
   12 |   cout << A << endl;
      |                     ^
      |                     )
   13 | }
      | ~                    
a.cc:9:7: note: to match this '('
    9 |   for ( i = 0, i < N, 1++){
      |       ^
a.cc:13:1: error: expected primary-expression before '}' token
   13 | }
      | ^
Language: Java

import java.util.*;

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

        int sum;
        for (int i = 1; i <= n; i++) {
          sum += i;
        }
      
       
            System.out.println(sum);
        
            
        
    }

}


Compiler output:
Main.java:10: error: variable sum might not have been initialized
          sum += i;
          ^
Main.java:14: error: variable sum might not have been initialized
            System.out.println(sum);
                               ^
2 errors
Language: Java

import java.util.*;

public class Main{
  public static void main(String[] args){
    Scanner scan = new Scanner(System.in);
    int a = scan.nextInt();
    int p =0;
    for(int i = 1;i<=0;i++){
      p+=i;
    }
    System.out.println(p);
  }

Compiler output:
Main.java:12: error: reached end of file while parsing
  }
   ^
1 error
Language: C++

#include<bits/stdc++.h>
using namespace std;
int main(){
  int n;
  cin>>n;
  int sum(int x){
    int s;
    s = n+sum(n-1);
    return s;
}
  cout << sum(n) <<endl;

Compiler output:
a.cc: In function 'int main()':
a.cc:6:17: error: a function-definition is not allowed here before '{' token
    6 |   int sum(int x){
      |                 ^
a.cc:11:11: error: 'sum' was not declared in this scope
   11 |   cout << sum(n) <<endl;
      |           ^~~
a.cc:11:25: error: expected '}' at end of input
   11 |   cout << sum(n) <<endl;
      |                         ^
a.cc:3:11: note: to match this '{'
    3 | int main(){
      |           ^
Language: C++

#include <bits/stdc++.h>
using namespace std;
 
int main() {
  int n,t;
  t =0
  cin >> n;
  for(int i=0;i <n ;i++){
    t = t + i + 1;
  }
  cout << t <<endl;
}

    

Compiler output:
a.cc: In function 'int main()':
a.cc:6:7: error: expected ';' before 'cin'
    6 |   t =0
      |       ^
      |       ;
    7 |   cin >> n;
      |   ~~~
Language: C++

#include <bits/stdc++.h>
using namespace std;
 
int main() {
  int n,t;
  cin >> n;
  for(int i=0;i <n ;i++){
    t = t + i + 1
  }
  cout << t <<endl;
}

    

Compiler output:
a.cc: In function 'int main()':
a.cc:8:18: error: expected ';' before '}' token
    8 |     t = t + i + 1
      |                  ^
      |                  ;
    9 |   }
      |   ~
Language: C++

#include <bits/stdc++.h>
using namespace std;
 
int main() {
  int n,t;
  cin >> n;
  for(int i=0;i <N ;i++){
    t = t + i + 1
  }
  cout << t <<endl;
}

    

Compiler output:
a.cc: In function 'int main()':
a.cc:7:18: error: 'N' was not declared in this scope
    7 |   for(int i=0;i <N ;i++){
      |                  ^
a.cc:8:18: error: expected ';' before '}' token
    8 |     t = t + i + 1
      |                  ^
      |                  ;
    9 |   }
      |   ~
Language: C++

#include <bits/std++.h>
using namespace std;
int main()
{
	int n;
  cin >> n;
  int answer=0;
  for(int i=1;i<=n;i++)
  {
  	answer+=i;
  }
  cout << answer << endl;
	return 0;
}

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

import java.util.Scanner;

public class  Main{
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        int can= 0;
        for(int i = 1; i <= n; i++) {
           can += i;
        }
    System.out.println(can)
    }
}

Compiler output:
Main.java:11: error: ';' expected
    System.out.println(can)
                           ^
1 error
Language: C++

int main(){
    int n;
    cin >> n;
    int ans = (1 + n) * n / 2;
    cout << ans;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:3:5: error: 'cin' was not declared in this scope
    3 |     cin >> n;
      |     ^~~
a.cc:5:5: error: 'cout' was not declared in this scope
    5 |     cout << ans;
      |     ^~~~
Language: C++

#include<bits/stdc++.h>
using namespace std;
#define REP(i, n) for(int i = 0; i < (int)n; i++)
const int MOD = 1000000007;
// long long a;
int main(){
  int a;
  cin >> a;
  cout << N*(N + 1)/2 << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:9:11: error: 'N' was not declared in this scope
    9 |   cout << N*(N + 1)/2 << endl;
      |           ^
Language: C++

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

int main() {
  int a：
  cin >> a;
  cout << (1+a)*a/2;
  }

Compiler output:
a.cc: In function 'int main()':
a.cc:6:3: error: expected initializer before 'cin'
    6 |   cin >> a;
      |   ^~~
a.cc:7:14: error: 'a' was not declared in this scope
    7 |   cout << (1+a)*a/2;
      |              ^
Language: C++

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

int main() {
  int a：
  cin >> a;
  cout << (1+a)*a/2;

Compiler output:
a.cc: In function 'int main()':
a.cc:6:3: error: expected initializer before 'cin'
    6 |   cin >> a;
      |   ^~~
a.cc:7:14: error: 'a' was not declared in this scope
    7 |   cout << (1+a)*a/2;
      |              ^
a.cc:7:21: error: expected '}' at end of input
    7 |   cout << (1+a)*a/2;
      |                     ^
a.cc:4:12: note: to match this '{'
    4 | int main() {
      |            ^
Language: C++

#include <vector>

using namespace std;

int main() {
	int n;
	cin >> n;
	cout << (n * (n + 1)) / 2 << endl;
}



Compiler output:
a.cc: In function 'int main()':
a.cc:7:9: error: 'cin' was not declared in this scope
    7 |         cin >> n;
      |         ^~~
a.cc:2:1: note: 'std::cin' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
    1 | #include <vector>
  +++ |+#include <iostream>
    2 | 
a.cc:8:9: error: 'cout' was not declared in this scope
    8 |         cout << (n * (n + 1)) / 2 << endl;
      |         ^~~~
a.cc:8:9: note: 'std::cout' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
a.cc:8:38: error: 'endl' was not declared in this scope
    8 |         cout << (n * (n + 1)) / 2 << endl;
      |                                      ^~~~
a.cc:2:1: note: 'std::endl' is defined in header '<ostream>'; this is probably fixable by adding '#include <ostream>'
    1 | #include <vector>
  +++ |+#include <ostream>
    2 |
Language: C++

#include <iostream>
#include <cstdio>
#include <algorithm>
#include <cmath>
#include <string>
#include <vector>
#include <list>
#include <set>
#include <map>
#include <queue>
#include <stack>
#include <cctype>
#include <climits>
#include <bitset>
using namespace std;
typedef long double ld;
typedef long long int ll;
typedef unsigned long long int ull;
typedef vector<int> vi;
typedef vector<char> vc;
typedef vector<string> vs;
typedef vector<pair<int,int>> vpii;
typedef vector<vector<int>> vvi;
typedef vector<vector<char>> vvc;
typedef vector<vector<string>> vvs;
#define rep(i,n) for(int i=0;i<n;i++)
#define fin(ans) cout<<(ans)<<endl
#define P 1000000007
#define STI(s) atoi(s.c_str())//string to int
#define mp(p,q) make_pair(p,q)
#define Sort(a) sort(a.begin(),a.end())
template<class T> inline bool chmax(T& a,T b){if(a<b){a=b;return 1;}return 0;}
template<class T> inline bool chmin(T& a,T b){if(a>b){a=b;return 1;}return 0;}
const int INF = INT_MAX;
const long long LLINF = 1LL<<60;
//g++ -std=c++1z temp.cpp
//./a.exe
    
int main(void){ios::sync_with_stdio(false);cin.tie(0);
//////////////////////////////////////////////////////
    
int n;
cin >> n;
cout << n(n+1)/2 << endl;








//////////////////////////////////////////////////////
return 0;}

Compiler output:
a.cc: In function 'int main()':
a.cc:44:10: error: 'n' cannot be used as a function
   44 | cout << n(n+1)/2 << endl;
      |         ~^~~~~
Language: C++

#include<bits/stdc++.h>
using namespace std;
int main(){
  int N;
  cin>>N;
  
  cout<<N(N+1)/2<<endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:7:10: error: 'N' cannot be used as a function
    7 |   cout<<N(N+1)/2<<endl;
      |         ~^~~~~
Language: C++

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

// 0 ~ nの総和を求める
int sum(int N) {
  if (N == 0) {
    // sum0のケースを場合分け
    return 0;
  }

  // それ以外のケース
  int s = sum(N - 1);  // 1~(n-1)の総和を計算
  return s + N;  // nを足して返す
}

int main() {
  cout << sum(N) << endl;  // 6
}


Compiler output:
a.cc: In function 'int main()':
a.cc:17:15: error: 'N' was not declared in this scope
   17 |   cout << sum(N) << endl;  // 6
      |               ^
Language: C++

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

// 0 ~ nの総和を求める
int sum(int n) {
  if (n == 0) {
    // sum0のケースを場合分け
    return 0;
  }

  // それ以外のケース
  int s = sum(n - 1);  // 1~(n-1)の総和を計算
  return s + n;  // nを足して返す
  
  cout << sum(n) << endl;  // 6
}


Compiler output:
/usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/14/../../../x86_64-linux-gnu/Scrt1.o: in function `_start':
(.text+0x17): undefined reference to `main'
collect2: error: ld returned 1 exit status
Language: C++

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

// 0 ~ nの総和を求める
int sum(int n) {
  if (n == 0) {
    // sum0のケースを場合分け
    return 0;
  }

  // それ以外のケース
  int s = sum(n - 1);  // 1~(n-1)の総和を計算
  return s + n;  // nを足して返す
}

int main() {
  cout << sum(n) << endl;  // 6
}


Compiler output:
a.cc: In function 'int main()':
a.cc:17:15: error: 'n' was not declared in this scope; did you mean 'yn'?
   17 |   cout << sum(n) << endl;  // 6
      |               ^
      |               yn
Language: C++

using System;

namespace helloVS
{
    class Program
    {
        static void Main(string[] args)
        {
            int n = int.Parse(Console.ReadLine());
            int ans = n * (n + 1) * (2 * n + 1) / 6;
            Console.WriteLine("{0}\n", ans);
        }
    }
}


Compiler output:
a.cc:1:7: error: expected nested-name-specifier before 'System'
    1 | using System;
      |       ^~~~~~
a.cc:7:26: error: 'string' has not been declared
    7 |         static void Main(string[] args)
      |                          ^~~~~~
a.cc:7:35: error: expected ',' or '...' before 'args'
    7 |         static void Main(string[] args)
      |                                   ^~~~
a.cc:13:6: error: expected ';' after class definition
   13 |     }
      |      ^
      |      ;
a.cc: In static member function 'static void helloVS::Program::Main(int*)':
a.cc:9:21: error: expected primary-expression before 'int'
    9 |             int n = int.Parse(Console.ReadLine());
      |                     ^~~
a.cc:11:13: error: 'Console' was not declared in this scope
   11 |             Console.WriteLine("{0}\n", ans);
      |             ^~~~~~~
Language: C++

#include<cstring>
#include<cstdio>
int main(){
  char key[100];
  char s[100];
  int x = 0;
  scanf("%s", key);
  
  for(int i=0; i>strlen(key); i++){
    if(key[i] == "B"){
      if(x != 0){
        x--;
      }
      else{
        s[x] = key[i];
        x++;
      }
    }
  }
  printf("%s", s);
  
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:10:15: error: ISO C++ forbids comparison between pointer and integer [-fpermissive]
   10 |     if(key[i] == "B"){
      |        ~~~~~~~^~~~~~
Language: C++

#include<cstdio>
using namespace std;
int main()
{
  int n;
  
  scanf("%d", &n);
  
  int x;
  
  for(int i = 1; i <= n; i++){
    x = i++;
  }
  printf("%d", x);
  
  return 0;

Compiler output:
a.cc: In function 'int main()':
a.cc:16:12: error: expected '}' at end of input
   16 |   return 0;
      |            ^
a.cc:4:1: note: to match this '{'
    4 | {
      | ^
Language: C++

#include<cstdio>
using namespace std;
int main()
{
  int n;
  
  scanf("%d", &n);
  
  int x;
  
  for(int i = 1; i <= N; i++){
    x = i++;
  }
  printf("%d", x);
  
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:11:23: error: 'N' was not declared in this scope
   11 |   for(int i = 1; i <= N; i++){
      |                       ^
Language: C++

#include<iostream>
using namespace std;
int main()
{
  int N;
  
  cin >> N;
  
  int x = 0;
  
  for(int i = 1; i >= N; i++){
    x = i++
  }
  return x;
}
  

Compiler output:
a.cc: In function 'int main()':
a.cc:12:12: error: expected ';' before '}' token
   12 |     x = i++
      |            ^
      |            ;
   13 |   }
      |   ~
Language: C++

#include<iostream>
using namespace std;
int main()
{
  int N;
  
  cin >> N;
  
  int x = 0;
  
  for(i = 1; i >= N; i++){
    x = i++
  }
  return x;
}
  

Compiler output:
a.cc: In function 'int main()':
a.cc:11:7: error: 'i' was not declared in this scope
   11 |   for(i = 1; i >= N; i++){
      |       ^
Language: C++

#include <algorithm>
#include <iostream>
#include <string>
using namespace std;
int main() {
  int a, b;
  cin >> a >> b >> c;
  //a = 5;
  //b = 0;
  
  for (int i = 1; i <= a; i++) {
    b += i * 2;
  }

  cout << b << endl;
  
}

Compiler output:
a.cc: In function 'int main()':
a.cc:7:20: error: 'c' was not declared in this scope
    7 |   cin >> a >> b >> c;
      |                    ^
Language: C++

#include <bits/stdc++.h>
using namespace std;
int main(){
  int a;
  cin>>a;
  cout<<((1+a)*a)/2)<<endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:6:20: error: expected ';' before ')' token
    6 |   cout<<((1+a)*a)/2)<<endl;
      |                    ^
      |                    ;
Language: C++

#include <bits/stdc++.h>
int main(){
  int a;
  cin>>a;
  cout<<((1+a)*a)/2)<<endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:4:3: error: 'cin' was not declared in this scope; did you mean 'std::cin'?
    4 |   cin>>a;
      |   ^~~
      |   std::cin
In file included from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:146,
                 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:5:3: error: 'cout' was not declared in this scope; did you mean 'std::cout'?
    5 |   cout<<((1+a)*a)/2)<<endl;
      |   ^~~~
      |   std::cout
/usr/include/c++/14/iostream:63:18: note: 'std::cout' declared here
   63 |   extern ostream cout;          ///< Linked to standard output
      |                  ^~~~
Language: C++

#include <bits/stdc++.h<
int main(){
  int a;
  cin>>a;
  cout<<((1+a)*a)/2)<<endl;
}

Compiler output:
a.cc:1:25: error: missing terminating > character
    1 | #include <bits/stdc++.h<
      |                         ^
a.cc:1:10: fatal error: bits/stdc++.h<: No such file or directory
    1 | #include <bits/stdc++.h<
      |          ^
compilation terminated.
Language: C++

#include<bits/t\stdc++.h>
using namespace std;
int main(void){
  int n;
  cin >> n;
  cout << (1+n)*n/2 << endl;
}

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

#include <stdio.h>int main () {int N; scanf("%d", &N); printf("%d\n", N*(N+1)/2);}

Compiler output:
a.cc:1:23: warning: extra tokens at end of #include directive
    1 | #include <stdio.h>int main () {int N; scanf("%d", &N); printf("%d\n", N*(N+1)/2);}
      |                       ^~~~
a.cc:1:10: fatal error: stdio.h>in: No such file or directory
    1 | #include <stdio.h>int main () {int N; scanf("%d", &N); printf("%d\n", N*(N+1)/2);}
      |          ^~~~~~~~~~~~
compilation terminated.
Language: Java

public class Main {

	public static void main(String[] args) {
		// TODO 自動生成されたメソッド・スタブ
		Scanner sc = new Scanner(System.in);
		int n = Integer.parseInt(sc.next());
		int sum=0;

		for(int i=1; i<n+1; i++) {
			sum += i;
		}

		System.out.print(sum);
	}

}


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

#include<iostream>
#include<string>
#include<typeinfo>
#include<vector>
#include<algorithm>
#include<map>
#include<iomanip>
typedef long long int ll;
using namespace std;
int main()
{
	int n;
	cin >> n;
  	int ans;
  	for(int i=1; i<=n; i++){
		ans += i;
    }
  	cout << i << endl;
	
	return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:18:17: error: 'i' was not declared in this scope
   18 |         cout << i << endl;
      |                 ^
Language: Java

import java.util.*;

public class Main{
  public static void main(String[]args){
    Scanner sc = new Scanner(System.in);
    int N = sc.nextInt();
    ans = 0;
    for(int i = 0; i < N; i++){
      ans += i;
    }
    System.out.println(ans);
  }
}

Compiler output:
Main.java:7: error: cannot find symbol
    ans = 0;
    ^
  symbol:   variable ans
  location: class Main
Main.java:9: error: cannot find symbol
      ans += i;
      ^
  symbol:   variable ans
  location: class Main
Main.java:11: error: cannot find symbol
    System.out.println(ans);
                       ^
  symbol:   variable ans
  location: class Main
3 errors
Language: C++

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

int main(){
 int N;
  cin >> N;
  printf(N(N+1)/2);
}

Compiler output:
a.cc: In function 'int main()':
a.cc:8:11: error: 'N' cannot be used as a function
    8 |   printf(N(N+1)/2);
      |          ~^~~~~
Language: C

#include<stdio.h>
int main(){
    
    int n;
    
    scanf("%d", &n);
    
    int ans = &n*(&n-1);
    
    printf("%d", ans);
    
    return 0;

}

Compiler output:
main.c: In function 'main':
main.c:8:17: error: invalid operands to binary * (have 'int *' and 'int *')
    8 |     int ans = &n*(&n-1);
      |               ~~^~~~~~~
      |               |     |
      |               int * int *
Language: Java

import java.util.*;

public class Main {

    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        int sum=0;
        for(i=1;i>=n;i++){
            sum=sum+i;
        }
        System.out.println(sum);
    }
}


Compiler output:
Main.java:9: error: cannot find symbol
        for(i=1;i>=n;i++){
            ^
  symbol:   variable i
  location: class Main
Main.java:9: error: cannot find symbol
        for(i=1;i>=n;i++){
                ^
  symbol:   variable i
  location: class Main
Main.java:9: error: cannot find symbol
        for(i=1;i>=n;i++){
                     ^
  symbol:   variable i
  location: class Main
Main.java:10: error: cannot find symbol
            sum=sum+i;
                    ^
  symbol:   variable i
  location: class Main
4 errors
Language: C++

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

int main(){

  int N;
  cin>>N;
  int c=0
  for(int count=0;count<N;count++){
    c++;
  }
  cout<<c<<endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:9:3: error: expected ',' or ';' before 'for'
    9 |   for(int count=0;count<N;count++){
      |   ^~~
a.cc:9:19: error: parse error in template argument list
    9 |   for(int count=0;count<N;count++){
      |                   ^~~~~~~
a.cc:9:19: error: statement cannot resolve address of overloaded function
a.cc:9:32: error: no post-increment operator for type
    9 |   for(int count=0;count<N;count++){
      |                                ^~
Language: C++

#include <iostream>
using namespace std;

int main(void){
    int n;
    cin >> n;
    for(int i=1; i<=n; i++){
        int sum = 0;
        sum += i;
    }
    cout<<sum<<endl;
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:11:11: error: 'sum' was not declared in this scope
   11 |     cout<<sum<<endl;
      |           ^~~
Language: C++

#include <bits/stdc++.h>
#include <numeric>
#include<iostream>
#include<vector>
#include<algorithm>
using namespace std;

int main(){
    int n;
    cin >> n;
    cout << (n(n+1))/2 << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:11:15: error: 'n' cannot be used as a function
   11 |     cout << (n(n+1))/2 << endl;
      |              ~^~~~~
Language: C++

#include <iostream>

class ANChildrenAndCandiesABCEdit {
public:
	void solve(std::istream& in, std::ostream& out) {
        int t;
        in >> t;
        out << t*(t+1)/2 << std::endl;
	}
};


Compiler output:
/usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/14/../../../x86_64-linux-gnu/Scrt1.o: in function `_start':
(.text+0x17): undefined reference to `main'
collect2: error: ld returned 1 exit status
Language: C++

#include<stdio.h>
int main(){
	int a;
    scanf("%d",&a);
    printf("%d"(a+1)*a/2);
}


Compiler output:
a.cc: In function 'int main()':
a.cc:5:16: error: expression cannot be used as a function
    5 |     printf("%d"(a+1)*a/2);
      |            ~~~~^~~~~
Language: C++

#include <iostream>
#include <algorithm>
#include <math.h>
#include <stdio.h>
using namespace std;

int main(){
    int n;
    cin>>n;
    int gokei - 0;
    for(int i=1; i<=n; i++){
        gokei += i;
    }
    cout<<gokei<<endl;
    return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:10:15: error: expected initializer before '-' token
   10 |     int gokei - 0;
      |               ^
a.cc:12:9: error: 'gokei' was not declared in this scope
   12 |         gokei += i;
      |         ^~~~~
a.cc:14:11: error: 'gokei' was not declared in this scope
   14 |     cout<<gokei<<endl;
      |           ^~~~~
Language: C

#include<stdio.h>
int fact(int n);

int main(void){
  int i;
  scanf("%d",&i);
  printf("%d",fact(i));
  
  return 0;
}

int fact(int n){
  if (n==0){
    return ;
  }else{
    return(n*fact(n-1));
}

Compiler output:
main.c: In function 'fact':
main.c:14:5: error: 'return' with no value, in function returning non-void [-Wreturn-mismatch]
   14 |     return ;
      |     ^~~~~~
main.c:12:5: note: declared here
   12 | int fact(int n){
      |     ^~~~
main.c:17:1: error: expected declaration or statement at end of input
   17 | }
      | ^
Language: C

#include<stdio.h>
int main(void){
  int a,i=0,res=0);
  for(i<=a;i++){
    res +=i;
  }
  printf("%d",res);
}

Compiler output:
main.c: In function 'main':
main.c:3:18: error: expected ',' or ';' before ')' token
    3 |   int a,i=0,res=0);
      |                  ^
main.c:4:15: error: expected ';' before ')' token
    4 |   for(i<=a;i++){
      |               ^
      |               ;
Language: C

#include <stdio.h>

int main(void) {
	int n,i,sum=0;
    scanf("%d",&n);
    for(i=1;i<=a;i++)sum+=i;
    printf("%d",sum);
    return 0;
}


Compiler output:
main.c: In function 'main':
main.c:6:16: error: 'a' undeclared (first use in this function)
    6 |     for(i=1;i<=a;i++)sum+=i;
      |                ^
main.c:6:16: note: each undeclared identifier is reported only once for each function it appears in
Language: C

#include<stdio.h>
int main(void){
  int n,t,res=0;
  scanf("%d",&n);
  for(t=0,t<=n,t++)res += t;
  printf("%d",res);
  return 0;
}


Compiler output:
main.c: In function 'main':
main.c:5:19: error: expected ';' before ')' token
    5 |   for(t=0,t<=n,t++)res += t;
      |                   ^
      |                   ;
main.c:5:19: error: expected expression before ')' token
Language: C

#include<stdio.h>
int main(void){
  int n,t,res;
  scanf("%d\n",&n);
  res=0;
  for(t=0,t<=n,t++)res += t;
  printf("%d\n",&res);
  return 0;
}

Compiler output:
main.c: In function 'main':
main.c:6:19: error: expected ';' before ')' token
    6 |   for(t=0,t<=n,t++)res += t;
      |                   ^
      |                   ;
main.c:6:19: error: expected expression before ')' token
Language: C

#include<stdio.h>
int main(void){
  int n,res;
  scanf("%d\n",&n);
  res=0;
  for(t==0,t<=n,t++){
    res += t;
  }
  printf("%d\n",&res);
  return 0;
}

Compiler output:
main.c: In function 'main':
main.c:6:7: error: 't' undeclared (first use in this function)
    6 |   for(t==0,t<=n,t++){
      |       ^
main.c:6:7: note: each undeclared identifier is reported only once for each function it appears in
main.c:6:20: error: expected ';' before ')' token
    6 |   for(t==0,t<=n,t++){
      |                    ^
      |                    ;
main.c:6:20: error: expected expression before ')' token
Language: C++

#include<iostream>
using namespace std;
int main(){
  int a,ans=0;
  cin>>a;
  for(a;a>0,a--)ans+=a;
  cout<<ans<<endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:6:16: error: expected ';' before ')' token
    6 |   for(a;a>0,a--)ans+=a;
      |                ^
      |                ;
Language: C++

#include <iostream>
using namespace std;
int main(){
  int N, ans;
  cin >> N;
  ans = N (N + 1) / 2;
  cout << ans << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:6:11: error: 'N' cannot be used as a function
    6 |   ans = N (N + 1) / 2;
      |         ~~^~~~~~~
Language: C++

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

int main() {
  int ddd;
  cin >> ddd ;
  int aaa;
  aaa=(ddd*(ddd +1))/2
 cout <<aaa << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:8:23: error: expected ';' before 'cout'
    8 |   aaa=(ddd*(ddd +1))/2
      |                       ^
      |                       ;
    9 |  cout <<aaa << endl;
      |  ~~~~
Language: C++

#include <iostream>
int main() {
  int N; cin >> N;
  cout << (1+N)*N / 2 << endl;
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:3:10: error: 'cin' was not declared in this scope; did you mean 'std::cin'?
    3 |   int N; cin >> N;
      |          ^~~
      |          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:4:3: error: 'cout' was not declared in this scope; did you mean 'std::cout'?
    4 |   cout << (1+N)*N / 2 << 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:4:26: error: 'endl' was not declared in this scope; did you mean 'std::endl'?
    4 |   cout << (1+N)*N / 2 << endl;
      |                          ^~~~
      |                          std::endl
In file included from /usr/include/c++/14/iostream:41:
/usr/include/c++/14/ostream:744:5: note: 'std::endl' declared here
  744 |     endl(basic_ostream<_CharT, _Traits>& __os)
      |     ^~~~
Language: C++

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

int main() {
  int N, result = 0;
  cin >> N;
  
  while(N > 0){
    result += N;
    N--
  }
  
  cout << result << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:10:8: error: expected ';' before '}' token
   10 |     N--
      |        ^
      |        ;
   11 |   }
      |   ~
Language: C++

#include <iostream>
using namespace std;

int main (){
  int n,sum =0;
  
  cin>> n;
  
  for(int i = 1;i<=n;i++)sum+=i;
  
  cout<<i<<endl;
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:11:9: error: 'i' was not declared in this scope
   11 |   cout<<i<<endl;
      |         ^
Language: C++

#include <iostream>

int main()
{
  int n;
  cin >> n;
  
  int sum = n * (n + 1) * 1 / 2;
  
  cout << sum << endl;
}

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

#include<iostream>
#include<algorithm>
#include<string>
#include<vector>
#include<queue>
#include<map>
#include<math.h>

#define rep(i,a,n) for(int (i)=(a);(i)<(n);(i)++)
#define rrep(i,a,n) for(int (i)=(a);(i)>=(n);(i)--)

#define INF 10000000

typedef  long long ll;

using namespace std;

double euclid_distance(double a,double b){
    return sqrt(a*a+b*b);
}

int gcd(long long int a,long long int b){
    long long int r;
    if(a < b){
        int tmp;
        tmp = a;
        a = b;
        b = tmp;
    }
    while(r != 0){
        r = a % b;
        a = b;
        b = r;
    }
    return r;
}

void Integer_factorization(long long int b,long long int n){
    long long int a = 2;
    long long int count = 0;
    long long int ans = 1;
    long long int ndash = n;
    if(b == 1) cout << n << endl;
    else{
    while(ndash >= a*a){
        if(n % a  == 0){
            count++;
            n/=a;

        if(count % b == 0){
            ans *= a;
        }
        }else{a++;count = 0;}
    }

    cout<<  ans << endl;
    }
}

void ys(){
    cout << "Yes" << endl;
}

void yb(){
    cout << "YES" << endl;
}

void ns(){
    cout << "No" << endl;
}

void nb(){
    cout << "NO" << endl;
}
//A 
//B
//C
//D

void solve(void){
    int n;
    cin >> n;
    cout << n(n+1)/2;
}

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


Compiler output:
a.cc: In function 'void solve()':
a.cc:83:14: error: 'n' cannot be used as a function
   83 |     cout << n(n+1)/2;
      |             ~^~~~~
Language: C++

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

int main(){
  int N,sum;
  sum = 0;
  cin >> N;
  for(int i = 0; i < N;i++){
  sum += i + 1;
  }
  cout << sum << endl;
}

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

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

int main() {
  int N ;
  cin >> N ;
  
  cout << N(N+1)/2 << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:8:12: error: 'N' cannot be used as a function
    8 |   cout << N(N+1)/2 << endl;
      |           ~^~~~~
Language: Java

import java.util.*;

public class Main {
  public static void main(String[] args) {
    int count = new Scanner(System.in).nextInt();
    
    int total = 0;
    for (int ix = 1; ix <= count; ix++) {
      total += ix;
    }
    
    System.out.println(ix);
  }
}

Compiler output:
Main.java:12: error: cannot find symbol
    System.out.println(ix);
                       ^
  symbol:   variable ix
  location: class Main
1 error
Language: C

#include<stdio.h>
#include<string.h>
int main(void){
int A,B,C,D,E,N,M,x,y,cou=0,cou2,v[1000000],w[1000000],min_i,en=0;
    char S[20],W[100],s[10],X,Y;
   scanf("%d",&A);
   for(int i=1;i<=A;i++){
       cou+=i;
   }
   printf("%d",i);
   return 0;
}

Compiler output:
main.c: In function 'main':
main.c:10:16: error: 'i' undeclared (first use in this function)
   10 |    printf("%d",i);
      |                ^
main.c:10:16: note: each undeclared identifier is reported only once for each function it appears in
Language: C++

#include <vector>
#include <list>
#include <map>
#include <set>
#include <queue>
#include <deque>
#include <stack>
#include <bitset>
#include <algorithm>
#include <functional>
#include <numeric>
#include <utility>
#include <sstream>
#include <iostream>
#include <iomanip>
#include <cstdio>
#include <cmath>
#include <cstdlib>
#include <ctime>
#include <cstring>

using namespace std;

#define MAX 1000000
#define INF 2140000000
#define MOD 1000000007

int main() {
	int minn = MAX, maxx = -MAX, n;
	
	cin >> n;
	
	vector<int> ar(n);

	for (int i = 0; i < n; ++i) {
		cin >> ar[i];
		minn = min(minn,ar[i]);
		maxx = max(maxx,ar[i]);
	}

	int ans = MAX;

	for (int i = minn; i < maxx + 1; ++i) {
		int sum = 0;

		for (int i = 0; i < ar.size(); ++i) {
			sum += (ar[i] - num)*(ar[i] - num);
		}
		
		ans = min(sum, ans);
	}

	cout << ans;

	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:47:41: error: 'num' was not declared in this scope; did you mean 'sum'?
   47 |                         sum += (ar[i] - num)*(ar[i] - num);
      |                                         ^~~
      |                                         sum
Language: C++

#include <iostream>

int main(){
  int n;
  std::cin >> n;
  std::cout << n*(n+1)/2 << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:6:29: error: 'endl' was not declared in this scope; did you mean 'std::endl'?
    6 |   std::cout << n*(n+1)/2 << endl;
      |                             ^~~~
      |                             std::endl
In file included from /usr/include/c++/14/iostream:41,
                 from a.cc:1:
/usr/include/c++/14/ostream:744:5: note: 'std::endl' declared here
  744 |     endl(basic_ostream<_CharT, _Traits>& __os)
      |     ^~~~