criyle/codenet-compile-errors huggingface dataset:
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:5:7: error: 'cin' was not declared in this scope; did you mean 'std::cin'?
    5 |   std: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:6:3: error: duplicate label 'std'
    6 |   std:cout << n*(n+1)/2 << endl;
      |   ^~~
a.cc:6:7: error: 'cout' was not declared in this scope; did you mean 'std::cout'?
    6 |   std:cout << n*(n+1)/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:6:28: 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:
/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;
long n,k;
long a[100000001];
int main()
{
  cin>>n;
  cout<<(n+1)*n/2;5
  

}


Compiler output:
a.cc: In function 'int main()':
a.cc:8:20: error: expected ';' before '}' token
    8 |   cout<<(n+1)*n/2;5
      |                    ^
      |                    ;
......
   11 | }
      | ~
Language: C++

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

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

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

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

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;
      |         ~^~~~~
Language: C++

#include <iostream>
#include <algorithm>
#include <math.h>
#include <string>
using namespace std;
int main(){
        double A,B, C, D,E,F;
        long long int Aa[10000000] = {};
        string S,Sa,Sb,Sc;
        cin >> A;
        if(A % 2 == 0)cout << (A + 1) * (A / 2) << endl;
        else cout << A * (A / 2 + 1) << endl;
  
        return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:11:14: error: invalid operands of types 'double' and 'int' to binary 'operator%'
   11 |         if(A % 2 == 0)cout << (A + 1) * (A / 2) << endl;
      |            ~ ^ ~
      |            |   |
      |            |   int
      |            double
Language: C++

#include <iostream>
using namespace std;

using uint = unsigned int;
using ll = long long;
using ull = unsigned long long;
#include <string>
#include <cstdio>
#include <algorithm>
#include <vector>
#include <cmath>
#include <climits>
#include <bitset>
#include <array>
#include <deque>
#include <queue>
#include <map>
#define all(x) (x).begin(),(x).end()

const int MOD = 1e9 + 7;

void solve(){

}
int func(int n){
    if (n == 1) return 1;
    return n + func(n-1);
}

int main(){
    cin >> N;
    cout << func(N) << endl;

    return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:31:12: error: 'N' was not declared in this scope
   31 |     cin >> N;
      |            ^
Language: C++

#include <iostrem>
#include <algorithm>
using namespace std;
int main(){
	
    int n;
    cin>>n;
    
    cout<<n*(n+1)/2<<endl;
	
	return 0;
}


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

#include<iostream>
using namespace std;

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

  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:7:3: error: 'y' was not declared in this scope
    7 |   y=n(n+1)/2;
      |   ^
a.cc:7:6: error: 'n' cannot be used as a function
    7 |   y=n(n+1)/2;
      |     ~^~~~~
Language: C++

#include <bits/stdc++.h>
#define repd(i,a,b) for (int i=(a);i<(b);i++)
#define rep(i,n) repd(i,0,n)
typedef long long ll;
using namespace std;
const int MOD = 1000000007;
const int INF = 1010000000;
const double EPS = 1e-10;

int h,w,x;
char s[1000][1000];
bool visited [1000][1000];
pair<int,int> start,goal;
queue<pair<int,pair<int,int>>> q;
vector<pair<int,int>> ino;

int main(){
  int a,b,c,d;cin>>a>>b>>c>>d;
  //int a[3];cin>>a[0]>>a[1]>>a[2];sort(a,a+3);
  /*if(a[2]==a[1]+a[0]){
    cout<<"Yes";
  }else{
    cout<<"No";
  }*/
  cout << (1+n)*n/2;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:25:14: error: 'n' was not declared in this scope
   25 |   cout << (1+n)*n/2;
      |              ^
Language: C++

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

int main() {
int H;
  cin >> H;
  int Q=H
  for (int i=0;i<H;i++){
    Q += Q--;}
  cout << Q << endl;

}


Compiler output:
a.cc: In function 'int main()':
a.cc:8:3: error: expected ',' or ';' before 'for'
    8 |   for (int i=0;i<H;i++){
      |   ^~~
a.cc:8:16: error: 'i' was not declared in this scope
    8 |   for (int i=0;i<H;i++){
      |                ^
Language: C++

#include<iostream>
#include<algorithm>
#include<math.h>
#include<queue>
#include<string>
#include<vector>
#include<tuple>
#include<stack>
#include<iomanip>
#include<map>
using namespace std;

int main() {
	string s;
	int i,n;
	cin >> s;
	n=strlen (s);
	i = 0;
	while (s[i] == 'B') {
		s[i] ='2';
		i++;
	}
	int j;
	for (j = i; j < n; j++) {
		if (s[j] == 'B') { 
			int x;
			x = j-1;
			while (s[x] == '2') {
				x--;
			}
			s[j] = '2'; s[x] = '2'; }
	}

cout<<endl;
	for (j = 0; j < n; j++) {
		if (s[j] != '2')cout << s[j];
	}
	cout << endl;

	return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:17:11: error: 'strlen' was not declared in this scope
   17 |         n=strlen (s);
      |           ^~~~~~
a.cc:11:1: note: 'strlen' is defined in header '<cstring>'; this is probably fixable by adding '#include <cstring>'
   10 | #include<map>
  +++ |+#include <cstring>
   11 | using namespace std;
Language: C++

#include<iostream>

using namespace std;

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

Compiler output:
a.cc: In function 'int main()':
a.cc:10:24: error: expected ';' before 'i'
   10 |   for(int i = 1; i <= n i++) a += i;
      |                        ^~
      |                        ;
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:6:34: error: expected ')' before ';' token
    6 |         printf("%d",((n*(n+1))/2);
      |               ~                  ^
      |                                  )
main.c:7:18: error: expected ';' before '}' token
    7 |         return 0;
      |                  ^
      |                  ;
    8 | }
      | ~
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:5:23: error: expected ';' before '\U0000ff1b'
    5 |         scanf("%d",&n)；
      |                       ^~
      |                       ;
main.c:8:1: error: expected declaration or statement at end of input
    8 | }
      | ^
Language: C

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

Compiler output:
main.c: In function 'main':
main.c:5:20: error: expected ';' before '\U0000ff1b'
    5 |         scanf("%d")；
      |                    ^~
      |                    ;
main.c:8:1: error: expected declaration or statement at end of input
    8 | }
      | ^
Language: C++

#include <bits/stdc++.h>
using namespace std;
 
int main(){
    ios::sync_with_stdio(false);
    cin.tie(0);
    
    int a;
    cout << n*(1+n)/2 << endl;
    
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:9:13: error: 'n' was not declared in this scope
    9 |     cout << n*(1+n)/2 << endl;
      |             ^
Language: C

#include<cstdio>
int main ()
{
	int n=0,sum=0;
	scanf("%d",&n);
	while(1<=n<=100)
	n=n+1;
	sum=(n+1)*n/2;
	printf("%d\n",sum);
 } 

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

#include<stdio.h>
int main()
{
    int x=0,sum=0,a=0,b=0;
    scanf("%d,%d,%d",&a,&x,&b); 
    while (x<a) 
	 x=x+1;
	  b=x;
             1<=b<=100
	  sum=(b+1)*b/2;
	 printf("%d\n",sum);
 } 

Compiler output:
main.c: In function 'main':
main.c:9:23: error: expected ';' before 'sum'
    9 |              1<=b<=100
      |                       ^
      |                       ;
   10 |           sum=(b+1)*b/2;
      |           ~~~
Language: C

#include<stdio.h>
int main()
{
    int x=0,sum=0,a=0,b=0;
    scanf("%d,%d,%d",&a,&x,&b); 
    while (x<a) 
	 x=x+1;
	  b=x;
              1<=b<=100
	  sum=(b+1)*b/2;
	 printf("sum=%d\n",sum);
 } 

Compiler output:
main.c: In function 'main':
main.c:9:24: error: expected ';' before 'sum'
    9 |               1<=b<=100
      |                        ^
      |                        ;
   10 |           sum=(b+1)*b/2;
      |           ~~~
Language: C++

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

	}

Compiler output:
a.cc: In function 'int main()':
a.cc:4:22: error: expected ';' before 'for'
    4 |         scanf("%d",n)
      |                      ^
      |                      ;
    5 |     for(i=1;i<=n;i++)
      |     ~~~               
a.cc:5:21: error: expected ';' before ')' token
    5 |     for(i=1;i<=n;i++)
      |                     ^
      |                     ;
Language: C++

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

	}

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

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

	}

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

#include <stdio.h>
int main()

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

Compiler output:
a.cc: In function 'int main()':
a.cc:6:14: error: expected ';' before '\U0000ff08'
    6 |         scanf （"%d",&n）;
      |              ^~~
      |              ;
a.cc:7:13: error: expected '(' before '\U0000ff08i'
    7 |         for （i=1;i <= n;i++）
      |             ^~~
      |             (
a.cc:7:13: error: '\U0000ff08i' was not declared in this scope
    7 |         for （i=1;i <= n;i++）
      |             ^~~
a.cc:7:29: error: expected ')' before '\U0000ff09'
    7 |         for （i=1;i <= n;i++）
      |             ~~~             ^~
      |                             )
a.cc:7:29: error: '\U0000ff09' was not declared in this scope
    7 |         for （i=1;i <= n;i++）
      |                             ^~
Language: C

#include <stdio.h>


int main(){
	int i, N;
	int sum=0;
	scanf("%d", &N);
	if(N>=1&&N<=100)
	{
	for(i=;i<=N;i++)
	sum+=i;
}
	printf("%d\n",sum);
	return 0;
}


Compiler output:
main.c: In function 'main':
main.c:10:15: error: expected expression before ';' token
   10 |         for(i=;i<=N;i++)
      |               ^
Language: Java

import java.util.*;

class Main{
  public static void main(string[] args){
    Scanner sc=new Scanner(System.in);
    int unko=sc.nextInt();
    System.out.println(unko*(unko+1)/2);
  }
}

Compiler output:
Main.java:4: error: cannot find symbol
  public static void main(string[] args){
                          ^
  symbol:   class string
  location: class Main
1 error
Language: C

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


Compiler output:
main.c: In function 'main':
main.c:5:6: error: redeclaration of 'i' with no linkage
    5 |  int i=1;
      |      ^
main.c:4:12: note: previous declaration of 'i' with type 'int'
    4 |  int n,sum,i;
      |            ^
main.c:6:6: error: redeclaration of 'sum' with no linkage
    6 |  int sum=0;
      |      ^~~
main.c:4:8: note: previous declaration of 'sum' with type 'int'
    4 |  int n,sum,i;
      |        ^~~
Language: C++

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

Compiler output:
a.cc: In function 'int main()':
a.cc:10:35: error: expected ';' before 'return'
   10 |         printf("Sum is %d.\n",sum)
      |                                   ^
      |                                   ;
   11 |     return 0;
      |     ~~~~~~
Language: C++

#include<stdio.h>
#include<stdlib.h>
int main(void){
	int  N,n,sum;
	scanf("%d",&N);
	sum=0;
	for(n=1;n<=N;n=n+1)
	{sum=sum+n;	
	}	
	printf("Sum is %d.\n",sum);
    return 0;

Compiler output:
a.cc: In function 'int main()':
a.cc:11:14: error: expected '}' at end of input
   11 |     return 0;
      |              ^
a.cc:3:15: note: to match this '{'
    3 | int main(void){
      |               ^
Language: C++

#include<stdio.h>
#include<stdlib.h>
int main() {
	int  N, n, sum;
	printf("请输入孩子数量N\n");
	scanf_s("%d",&N);
	sum = 0;
	for (n = 1; n <= N; n = n + 1) {
		sum = sum + n;
	}
	printf("Sum is %d.\n", sum);
	system("pause");
	return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:6:9: error: 'scanf_s' was not declared in this scope; did you mean 'scanf'?
    6 |         scanf_s("%d",&N);
      |         ^~~~~~~
      |         scanf
Language: C++

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

    return 0;
	}


Compiler output:
a.cc: In function 'int main()':
a.cc:13:10: error: expected '}' at end of input
   13 |         }
      |          ^
a.cc:3:15: note: to match this '{'
    3 | int main(void){
      |               ^
Language: C++

#! /usr/bin/python3
# A - キャンディーとN人の子供イージー / Children and Candies (ABC Edit)

"""
問題文
    競プロ幼稚園にはN人の子供がいます。
    えび先生は、子供たちを一列に並べ、
    一人目にはキャンディーを1個,二人目には2個,...,
    N人目にはN個あげることにしました。
    必要なキャンディーの個数の合計は何個でしょう?
制約
    1 ≦ N ≦ 100
入力
    入力は以下の形式で標準入力から与えられる。
    N
出力
    必要なキャンディーの個数の合計を出力せよ。
"""

test_mode = True

N = int(input())    # 人数
candy = 0           # キャンディーの個数

for i in range(N):  # 一人ずつキャンディーの個数を加える
    candy += i+1

print(candy)


Compiler output:
a.cc:1:2: error: invalid preprocessing directive #!
    1 | #! /usr/bin/python3
      |  ^
a.cc:2:3: error: invalid preprocessing directive #A
    2 | # A - キャンディーとN人の子供イージー / Children and Candies (ABC Edit)
      |   ^
a.cc:4:3: warning: missing terminating " character
    4 | """
      |   ^
a.cc:4:3: error: missing terminating " character
a.cc:6:5: error: extended character 。 is not valid in an identifier
    6 |     競プロ幼稚園にはN人の子供がいます。
      |     ^
a.cc:7:5: error: extended character 、 is not valid in an identifier
    7 |     えび先生は、子供たちを一列に並べ、
      |     ^
a.cc:7:5: error: extended character 、 is not valid in an identifier
a.cc:9:5: error: extended character 。 is not valid in an identifier
    9 |     N人目にはN個あげることにしました。
      |     ^
a.cc:12:7: error: extended character ≦ is not valid in an identifier
   12 |     1 ≦ N ≦ 100
      |       ^
a.cc:12:11: error: extended character ≦ is not valid in an identifier
   12 |     1 ≦ N ≦ 100
      |           ^
a.cc:14:5: error: extended character 。 is not valid in an identifier
   14 |     入力は以下の形式で標準入力から与えられる。
      |     ^
a.cc:17:5: error: extended character 。 is not valid in an identifier
   17 |     必要なキャンディーの個数の合計を出力せよ。
      |     ^
a.cc:18:3: warning: missing terminating " character
   18 | """
      |   ^
a.cc:18:3: error: missing terminating " character
a.cc:22:21: error: stray '#' in program
   22 | N = int(input())    # 人数
      |                     ^
a.cc:23:21: error: stray '#' in program
   23 | candy = 0           # キャンディーの個数
      |                     ^
a.cc:25:21: error: stray '#' in program
   25 | for i in range(N):  # 一人ずつキャンディーの個数を加える
      |                     ^
a.cc:4:1: error: expected unqualified-id before string constant
    4 | """
      | ^~
Language: C++

#include <stdio.h>
#include <stdlib.h>
int main()
{
	printf("请输入一个数：");
	int n;
   scanf_s("%d",& n);
    int i, N = 0;
	i = 1;
	while (i <= n)
	{
	    N = N + i;
	    i = i + 1;	
	}
	printf("%d\n", N);
	system("pause");
}

Compiler output:
a.cc: In function 'int main()':
a.cc:7:4: error: 'scanf_s' was not declared in this scope; did you mean 'scanf'?
    7 |    scanf_s("%d",& n);
      |    ^~~~~~~
      |    scanf
Language: C++

#include <stdio.h>
#include <stdlib.h>
int main()
{
	printf("请输入一个数：");
	int n;
   scanf_s("%d",& n);
    int i, N = 0;
	i = 1;
	while (i <= n)
	{
	    N = N + i;
	    i = i + 1;	
	}
	printf("the answer is:%d\n", N);
	system("pause");
}

Compiler output:
a.cc: In function 'int main()':
a.cc:7:4: error: 'scanf_s' was not declared in this scope; did you mean 'scanf'?
    7 |    scanf_s("%d",& n);
      |    ^~~~~~~
      |    scanf
Language: C++

#include <stdio.h>
#include <stdlib.h>
int main()
{
	printf("请输入一个数：");
	int n;
   scanf_s("%d",& n);
   if (n <= 100)
   {
    int i, N = 0;
	i = 1;
	while (i <= n)
	{
		N = N + i;
		i = i + 1;
	}
	printf("the answer is:%d\n", N);
	system("pause");
   }	
}

Compiler output:
a.cc: In function 'int main()':
a.cc:7:4: error: 'scanf_s' was not declared in this scope; did you mean 'scanf'?
    7 |    scanf_s("%d",& n);
      |    ^~~~~~~
      |    scanf
Language: C++

#include <stdio.h>
int main()
{
	printf(" input：");
	int n;
   scanf_s("%d",& n);
   if (n <= 100)
   {
    int i, N = 0;
	i = 1;
	while (i <= n)
	{
		N = N + i;
		i = i + 1;
	}
	printf("%d\n", N);
	getchar();
   }
   else printf("error\n");
   getchar();
}

Compiler output:
a.cc: In function 'int main()':
a.cc:6:4: error: 'scanf_s' was not declared in this scope; did you mean 'scanf'?
    6 |    scanf_s("%d",& n);
      |    ^~~~~~~
      |    scanf
Language: C++

#include <stdio.h>
#include <stdlib.h>
int main()
{
	printf("请输入一个数：");
	int n;
   scanf_s("%d",& n);
   if (n <= 100)
   {
    int i, N = 0;
	i = 1;
	while (i <= n)
	{
		N = N + i;
		i = i + 1;
	}
	printf("the answer is:%d\n", N);
	system("pause");
   }
   else printf("输入错误\n");
   system("pause");
}

Compiler output:
a.cc: In function 'int main()':
a.cc:7:4: error: 'scanf_s' was not declared in this scope; did you mean 'scanf'?
    7 |    scanf_s("%d",& n);
      |    ^~~~~~~
      |    scanf
Language: C++

#include <iostream>
#include <vector>
#include <cstdio>
#include <cmath>
#define ll long long;
using namespace std;
#define fo(i,n) for(int i=0;i<(n);i++)
int main(){
    int n; cin >> n;
    vector<int> v(n);
    rep(i, n) cin >> v[i];
    ll sum = 1e9;
    for (int i = -100; i <= 100 ; ++i){
        ll tmp = 0;
        rep(j, n){
            tmp += pow((i - v[j]), 2);
        }
        sum = min(tmp, sum);
    }
    cout << sum << endl;
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:11:9: error: 'i' was not declared in this scope
   11 |     rep(i, n) cin >> v[i];
      |         ^
a.cc:11:5: error: 'rep' was not declared in this scope; did you mean 'frexp'?
   11 |     rep(i, n) cin >> v[i];
      |     ^~~
      |     frexp
a.cc:5:17: error: declaration does not declare anything [-fpermissive]
    5 | #define ll long long;
      |                 ^~~~
a.cc:12:5: note: in expansion of macro 'll'
   12 |     ll sum = 1e9;
      |     ^~
a.cc:12:8: error: 'sum' was not declared in this scope
   12 |     ll sum = 1e9;
      |        ^~~
a.cc:5:17: error: declaration does not declare anything [-fpermissive]
    5 | #define ll long long;
      |                 ^~~~
a.cc:14:9: note: in expansion of macro 'll'
   14 |         ll tmp = 0;
      |         ^~
a.cc:14:12: error: 'tmp' was not declared in this scope; did you mean 'tm'?
   14 |         ll tmp = 0;
      |            ^~~
      |            tm
a.cc:15:13: error: 'j' was not declared in this scope
   15 |         rep(j, n){
      |             ^
Language: C

#include<iostream>
using namespace std;
int add(int n);
int main(){
	int n,ans;
	cin >> n;
	ans = add(n);
	cout << ans << '\n';
}
int add(int n){
	if(n == 1)
		return n;
	return n + add(n-1);
}

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

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


Compiler output:
a.cc: In function 'int main()':
a.cc:5:8: error: 'n' was not declared in this scope; did you mean 'yn'?
    5 |   cin>>n;
      |        ^
      |        yn
Language: C

#include <stdio.h>

int main()
{
int n;
scanf("%d",&n)
printf("%d",(1+n)*n/2)
}

Compiler output:
main.c: In function 'main':
main.c:6:15: error: expected ';' before 'printf'
    6 | scanf("%d",&n)
      |               ^
      |               ;
    7 | printf("%d",(1+n)*n/2)
      | ~~~~~~
Language: C++

s[];char*p=s+3,*q=s+3;c;main(){for(gets(s);p-->s;)*p-66?!c?*--q=*p:c--:c++;puts(q);}

Compiler output:
a.cc:1:1: error: 's' does not name a type
    1 | s[];char*p=s+3,*q=s+3;c;main(){for(gets(s);p-->s;)*p-66?!c?*--q=*p:c--:c++;puts(q);}
      | ^
a.cc:1:12: error: 's' was not declared in this scope
    1 | s[];char*p=s+3,*q=s+3;c;main(){for(gets(s);p-->s;)*p-66?!c?*--q=*p:c--:c++;puts(q);}
      |            ^
a.cc:1:23: error: 'c' does not name a type
    1 | s[];char*p=s+3,*q=s+3;c;main(){for(gets(s);p-->s;)*p-66?!c?*--q=*p:c--:c++;puts(q);}
      |                       ^
a.cc:1:25: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
    1 | s[];char*p=s+3,*q=s+3;c;main(){for(gets(s);p-->s;)*p-66?!c?*--q=*p:c--:c++;puts(q);}
      |                         ^~~~
a.cc: In function 'int main()':
a.cc:1:41: error: 's' was not declared in this scope
    1 | s[];char*p=s+3,*q=s+3;c;main(){for(gets(s);p-->s;)*p-66?!c?*--q=*p:c--:c++;puts(q);}
      |                                         ^
a.cc:1:36: error: 'gets' was not declared in this scope
    1 | s[];char*p=s+3,*q=s+3;c;main(){for(gets(s);p-->s;)*p-66?!c?*--q=*p:c--:c++;puts(q);}
      |                                    ^~~~
a.cc:1:58: error: 'c' was not declared in this scope
    1 | s[];char*p=s+3,*q=s+3;c;main(){for(gets(s);p-->s;)*p-66?!c?*--q=*p:c--:c++;puts(q);}
      |                                                          ^
a.cc:1:63: error: 'q' was not declared in this scope
    1 | s[];char*p=s+3,*q=s+3;c;main(){for(gets(s);p-->s;)*p-66?!c?*--q=*p:c--:c++;puts(q);}
      |                                                               ^
a.cc:1:81: error: 'q' was not declared in this scope
    1 | s[];char*p=s+3,*q=s+3;c;main(){for(gets(s);p-->s;)*p-66?!c?*--q=*p:c--:c++;puts(q);}
      |                                                                                 ^
a.cc:1:76: error: 'puts' was not declared in this scope
    1 | s[];char*p=s+3,*q=s+3;c;main(){for(gets(s);p-->s;)*p-66?!c?*--q=*p:c--:c++;puts(q);}
      |                                                                            ^~~~
Language: C++

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

Compiler output:
a.cc: In function 'int main()':
a.cc:6:15: error: 'i' was not declared in this scope
    6 |   for(int I=1;i<=n;i++) sum+=i;
      |               ^
Language: C

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

Compiler output:
main.c: In function 'main':
main.c:4:3: error: implicit declaration of function 'scan'; did you mean 'scanf'? [-Wimplicit-function-declaration]
    4 |   scan("%d",&n);
      |   ^~~~
      |   scanf
Language: C++


import java.util.Scanner;
public class Main{

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

}


Compiler output:
a.cc:2:1: error: 'import' does not name a type
    2 | import java.util.Scanner;
      | ^~~~~~
a.cc:2:1: note: C++20 'import' only available with '-fmodules-ts'
a.cc:3:1: error: expected unqualified-id before 'public'
    3 | public class Main{
      | ^~~~~~
Language: C++

import java.util.Scanner;

public class Main{

	public static void main(String[] args) throws IOException {
		Scanner sc = new Scanner(System.in);
		int ame = 0;
		int value = sc.nextInt();
		for(int i =1;i <= value; i++) {
			ame += i;
		}
		System.out.println(ame);
	}

}


Compiler output:
a.cc:1:1: error: 'import' does not name a type
    1 | import java.util.Scanner;
      | ^~~~~~
a.cc:1:1: note: C++20 'import' only available with '-fmodules-ts'
a.cc:3:1: error: expected unqualified-id before 'public'
    3 | public class Main{
      | ^~~~~~
Language: C++

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

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 >> 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:5:3: error: 'cout' was not declared in this scope; did you mean 'std::cout'?
    5 |   cout << n * (n + 1) / 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:5:30: error: 'endl' was not declared in this scope; did you mean 'std::endl'?
    5 |   cout << n * (n + 1) / 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;
  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: C

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

Compiler output:
main.c: In function 'main':
main.c:6:19: error: '\U0000ff08n' undeclared (first use in this function)
    6 |   printf("%d\n",n*（n+1）/2);
      |                   ^~~
main.c:6:19: note: each undeclared identifier is reported only once for each function it appears in
main.c:6:23: error: invalid suffix "）" on integer constant
    6 |   printf("%d\n",n*（n+1）/2);
      |                       ^~~
Language: C

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

Compiler output:
main.c: In function 'main':
main.c:6:19: error: '\U0000ff08n' undeclared (first use in this function)
    6 |   printf("%d\n",n*（n+1）/2)
      |                   ^~~
main.c:6:19: note: each undeclared identifier is reported only once for each function it appears in
main.c:6:23: error: invalid suffix "）" on integer constant
    6 |   printf("%d\n",n*（n+1）/2)
      |                       ^~~
main.c:6:29: error: expected ';' before '}' token
    6 |   printf("%d\n",n*（n+1）/2)
      |                             ^
      |                             ;
    7 | }
      | ~
Language: C++

#include <iostream>
using namespace std;
int main(){
    cin>>n;cout<<n*(n-1)/2<<endl;
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:4:10: error: 'n' was not declared in this scope
    4 |     cin>>n;cout<<n*(n-1)/2<<endl;
      |          ^
Language: C++

#include <cstdio>
int main(){
    cin>>n;cout<<n*(n-1)/2<<endl;
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:3:5: error: 'cin' was not declared in this scope
    3 |     cin>>n;cout<<n*(n-1)/2<<endl;
      |     ^~~
a.cc:3:10: error: 'n' was not declared in this scope
    3 |     cin>>n;cout<<n*(n-1)/2<<endl;
      |          ^
a.cc:3:12: error: 'cout' was not declared in this scope
    3 |     cin>>n;cout<<n*(n-1)/2<<endl;
      |            ^~~~
a.cc:3:29: error: 'endl' was not declared in this scope
    3 |     cin>>n;cout<<n*(n-1)/2<<endl;
      |                             ^~~~
Language: C++

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

Compiler output:
a.cc: In function 'int main()':
a.cc:4:12: error: 'n' was not declared in this scope; did you mean 'yn'?
    4 |     cin >> n;
      |            ^
      |            yn
Language: C++

include <iostream>
using namespace std;
int n;
int main()
{
    cin>>n;
    cout<<n*(n+1)/2<<endl;
    return 0;
}

Compiler output:
a.cc:1:1: error: 'include' does not name a type
    1 | include <iostream>
      | ^~~~~~~
a.cc: In function 'int main()':
a.cc:6:5: error: 'cin' was not declared in this scope
    6 |     cin>>n;
      |     ^~~
a.cc:7:5: error: 'cout' was not declared in this scope
    7 |     cout<<n*(n+1)/2<<endl;
      |     ^~~~
a.cc:7:22: error: 'endl' was not declared in this scope
    7 |     cout<<n*(n+1)/2<<endl;
      |                      ^~~~
Language: C++

#include <bits/stdc++.h>
#define ll long long
#define _for(a,b,i) for(int i=a;i<=b;i++)
#define for1(a,b,i) for(int i=a;i<b;i++)
using namespace std;
ll ma=0x80000000;
ll mi=0x7fffffff;
const ll zfc=0xffffffff;
const ll mod=1e9+7;
inline void input(ll &x)
{
    x=0;
    int f=1;
    char ch=getchar();
    while(!isdigit(ch))
	{
		if(ch=='-')f=-f;
		ch=getchar();
	}
    while(isdigit(ch))
	{
		x=x*10+(ch-'0');
		ch=getchar();
	}
    x*=f;
}
inline void output(ll x)
{
	if(x<0)
    {
        x=-x;
        putchar('-');
    }
    if(x/10>0)output(x/10);
    putchar(x%10+'0');
}
ll a
int main()
{
	ios::sync_with_stdio(false);
	input(a);
	output(a*(a+1)/2);
	cout<<endl;
    return 0;
}


Compiler output:
a.cc:38:1: error: expected initializer before 'int'
   38 | int main()
      | ^~~
Language: Java

import java.util.Scanner;
import java.util.Arrays;
import java.util.ArrayDeque;
import java.util.Deque;
import java.util.Collection;
import java.util.LinkedList;
import java.util.Queue;

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


Compiler output:
Main.java:13: error: cannot find symbol
                  for (i = 1; i <= N; i++) {
                       ^
  symbol:   variable i
  location: class Main
Main.java:13: error: cannot find symbol
                  for (i = 1; i <= N; i++) {
                              ^
  symbol:   variable i
  location: class Main
Main.java:13: error: cannot find symbol
                  for (i = 1; i <= N; i++) {
                                      ^
  symbol:   variable i
  location: class Main
Main.java:14: error: cannot find symbol
                          i += i;
                          ^
  symbol:   variable i
  location: class Main
Main.java:14: error: cannot find symbol
                          i += i;
                               ^
  symbol:   variable i
  location: class Main
Main.java:16: error: cannot find symbol
                  System.out.println(i);
                                     ^
  symbol:   variable i
  location: class Main
6 errors
Language: C++

import java.util.Scanner;
import java.util.Arrays;
import java.util.ArrayDeque;
import java.util.Deque;
import java.util.Collection;
import java.util.LinkedList;
import java.util.Queue;

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


Compiler output:
a.cc:1:1: error: 'import' does not name a type
    1 | import java.util.Scanner;
      | ^~~~~~
a.cc:1:1: note: C++20 'import' only available with '-fmodules-ts'
a.cc:2:1: error: 'import' does not name a type
    2 | import java.util.Arrays;
      | ^~~~~~
a.cc:2:1: note: C++20 'import' only available with '-fmodules-ts'
a.cc:3:1: error: 'import' does not name a type
    3 | import java.util.ArrayDeque;
      | ^~~~~~
a.cc:3:1: note: C++20 'import' only available with '-fmodules-ts'
a.cc:4:1: error: 'import' does not name a type
    4 | import java.util.Deque;
      | ^~~~~~
a.cc:4:1: note: C++20 'import' only available with '-fmodules-ts'
a.cc:5:1: error: 'import' does not name a type
    5 | import java.util.Collection;
      | ^~~~~~
a.cc:5:1: note: C++20 'import' only available with '-fmodules-ts'
a.cc:6:1: error: 'import' does not name a type
    6 | import java.util.LinkedList;
      | ^~~~~~
a.cc:6:1: note: C++20 'import' only available with '-fmodules-ts'
a.cc:7:1: error: 'import' does not name a type
    7 | import java.util.Queue;
      | ^~~~~~
a.cc:7:1: note: C++20 'import' only available with '-fmodules-ts'
a.cc:10:17: error: expected ':' before 'static'
   10 |           public static void main(String[] args) {
      |                 ^~~~~~~
      |                 :
a.cc:10:35: error: 'String' has not been declared
   10 |           public static void main(String[] args) {
      |                                   ^~~~~~
a.cc:10:44: error: expected ',' or '...' before 'args'
   10 |           public static void main(String[] args) {
      |                                            ^~~~
a.cc:18:2: error: expected ';' after class definition
   18 | }
      |  ^
      |  ;
a.cc: In static member function 'static void Main::main(int*)':
a.cc:11:19: error: 'Scanner' was not declared in this scope
   11 |                   Scanner scan = new Scanner(System.in);
      |                   ^~~~~~~
a.cc:12:27: error: 'scan' was not declared in this scope
   12 |                   int N = scan.nextInt();
      |                           ^~~~
a.cc:13:24: error: 'i' was not declared in this scope
   13 |                   for (i = 1; i <= N; i++) {
      |                        ^
a.cc:16:19: error: 'System' was not declared in this scope
   16 |                   System.out.println(i);
      |                   ^~~~~~
a.cc:16:38: error: 'i' was not declared in this scope
   16 |                   System.out.println(i);
      |                                      ^
Language: C++

#include<cstdio>
#include<cstring>
#include<cmath>
#include<algorithm>
using namespace std;

int main()
{
	int N;
	scanf("%d",&N);
	N=(1+N)*N/2;
	if(N<=100 && N>=1)
	{
		printf("%d",N);
	}
	else
	{
		pnintf("NO");
	}
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:18:17: error: 'pnintf' was not declared in this scope; did you mean 'printf'?
   18 |                 pnintf("NO");
      |                 ^~~~~~
      |                 printf
Language: C++

#include<cstdio>
#include<cstring>
#include<cmath>
#include<algorithm>
using namespace std;

int main()
{
	int N;
	scanf("%d",&N);
	a=(1+N)*N/2;
	if(N<=100 && N>=0)
	{
		printf("%d",N);
	}
	else
	{
	}
	return 0;
}

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

#include<cstdio>
#include<cstring>
#include<cmath>
#include<algorithm>
using namespace std;

int main()
{
	int N;
	scanf("%d",&N);
	a=(1+N)*N/2;
	if(N<=100 && N>=0)
	{
		printf("%d",N);
	}
	else
	{
	}
	return 0;
}

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

#include <iostream>
#include <string>
#include <algorithm>
#include <cmath>
#include <vector>
#include <stack>
#include <queue>
using namespace std;
typedef long long ll;
int main() {
	int n,count=0,
	cin >> n;
	for (int i = 1; i <= n; i++)count += i;
	cout << count << endl;
	getchar();
	getchar();
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:12:13: error: expected initializer before '>>' token
   12 |         cin >> n;
      |             ^~
Language: C++

#include<iostream>
#include<algorithm>
#include<vector>
#include<string>
using namespace std;
typedef long long lng;
#define UP(i,a,b) for(int i=(a); i<=(b); ++i)
#define DOWN(i,b,a) for(int i=(b); i>=(a); --i)
#define REP(i,n) UP(i,0,n-1)
#define ALL(a) (a).begin(), (a).end()
#define UNIQUE(a) a.erase(unique(ALL(a)), a.end()) //NOTE: <a> must be sorted in advance

lng power(lng b, lng n) {lng sol=1; while(n>0) {if(n&1) {sol=sol*b;} n>>=1; b*= b;} return sol;} //calculate b^n

const int MOD = 1000000007; //10^9+7


/*********** variables ************/

/**********************************/

int main() {
    cin.tie(0);
    ios::sync_with_stdio(false);
    int W, H, N;
    bool sq[101][101] {{0}};
    int N;
    cin >> N;
    cout << N*(N+1)/2 << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:27:9: error: redeclaration of 'int N'
   27 |     int N;
      |         ^
a.cc:25:15: note: 'int N' previously declared here
   25 |     int W, H, N;
      |               ^
Language: C++

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

int main(void){
  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:13:11: error: 'i' was not declared in this scope
   13 |   cout << i << endl;
      |           ^
Language: C++

#include <iostream>
using namespace std;
 
int main(){
  int N,S;
  S=0;
  cin >> N;
  if(int i=0;i<=N;i++){
    S+=i;}
  cout << S << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:8:18: error: expected ')' before ';' token
    8 |   if(int i=0;i<=N;i++){
      |     ~            ^
      |                  )
a.cc:8:19: error: 'i' was not declared in this scope
    8 |   if(int i=0;i<=N;i++){
      |                   ^
Language: C++

#include <iostream>
using namespace std;

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

Compiler output:
a.cc: In function 'int main()':
a.cc:8:18: error: expected ')' before ';' token
    8 |   if(int i=0;i<=N;i++;){
      |     ~            ^
      |                  )
a.cc:8:19: error: 'i' was not declared in this scope
    8 |   if(int i=0;i<=N;i++;){
      |                   ^
a.cc:8:23: error: expected primary-expression before ')' token
    8 |   if(int i=0;i<=N;i++;){
      |                       ^
Language: C++

#include<iostream>
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:7:12: error: 'N' cannot be used as a function
    7 |   cout << N(N+1)/2 << endl;
      |           ~^~~~~
Language: C

#include "stdafx.h"


int func(int a) {
	if (a == 1) {
		return 1;
	}else {
		return func(a - 1)+a;
	}
}

int main()
{
	int num, ans;
	//階乗をもとめる
	printf("自然数だけだよ♡：");
	scanf("%d", &num);
	ans = func(num);
	printf("あ～、答えの音～：%d\n", ans);
    return 0;
}





Compiler output:
main.c:1:10: fatal error: stdafx.h: No such file or directory
    1 | #include "stdafx.h"
      |          ^~~~~~~~~~
compilation terminated.
Language: C

#include <stdio.h>
int func(int a){	
	if (a == 1) {
		return 1;
	}
	else {
		return func(a - 1)+a;
	}
}

int main(void) {
	int num, ans;
	printf("自然数だけだよ♡：");
	scanf_s("%d", &num);
	ans = func(num);
	printf("あ～、答えの音～：%d\n", ans);
	return 0;
}

Compiler output:
main.c: In function 'main':
main.c:14:9: error: implicit declaration of function 'scanf_s'; did you mean 'scanf'? [-Wimplicit-function-declaration]
   14 |         scanf_s("%d", &num);
      |         ^~~~~~~
      |         scanf
Language: C

#include <stdio.h>

int func(int a)
{
	if (a == 1)
	{
		return 1;
	}
	else {
		return func(a - 1)+a;
	}
}


int main()
{
	int num, ans;
	//階乗を求める
	scanf_s("%d", &num);
	ans = func(num);
	printf("%d,ans);
	return 0;
}

Compiler output:
main.c: In function 'main':
main.c:19:9: error: implicit declaration of function 'scanf_s'; did you mean 'scanf'? [-Wimplicit-function-declaration]
   19 |         scanf_s("%d", &num);
      |         ^~~~~~~
      |         scanf
main.c:21:16: warning: missing terminating " character
   21 |         printf("%d,ans);
      |                ^
main.c:21:16: error: missing terminating " character
   21 |         printf("%d,ans);
      |                ^~~~~~~~~
main.c:22:9: error: expected expression before 'return'
   22 |         return 0;
      |         ^~~~~~
main.c:22:18: error: expected ';' before '}' token
   22 |         return 0;
      |                  ^
      |                  ;
   23 | }
      | ~
Language: C

int main()
{
	int N,b;
	scanf_s("%d", &N);

	b = 0.5 *N*( N + 1 );
	printf("%d\n", b);

    return 0;
}


Compiler output:
main.c: In function 'main':
main.c:4:9: error: implicit declaration of function 'scanf_s' [-Wimplicit-function-declaration]
    4 |         scanf_s("%d", &N);
      |         ^~~~~~~
main.c:7:9: error: implicit declaration of function 'printf' [-Wimplicit-function-declaration]
    7 |         printf("%d\n", b);
      |         ^~~~~~
main.c:1:1: note: include '<stdio.h>' or provide a declaration of 'printf'
  +++ |+#include <stdio.h>
    1 | int main()
main.c:7:9: warning: incompatible implicit declaration of built-in function 'printf' [-Wbuiltin-declaration-mismatch]
    7 |         printf("%d\n", b);
      |         ^~~~~~
main.c:7:9: note: include '<stdio.h>' or provide a declaration of 'printf'
Language: C++

// Children and Candies (ABC Edit).cpp : アプリケーションのエントリ ポイントを定義します。
//

#define _CRT_SECURE_NO_WARNINGS
#include "stdafx.h"



int main()
{
	int a,b;
	scanf_s("%d", &a);

	b = 0.5 *a*( a + 1 );
	printf("%d\n", b);

    return 0;
}





Compiler output:
a.cc:5:10: fatal error: stdafx.h: No such file or directory
    5 | #include "stdafx.h"
      |          ^~~~~~~~~~
compilation terminated.
Language: C

#include <stdio.h>

int main()
{
	int n;
	scanf_s("%d", &n);
	n = n * (n + 1) / 2;
	printf("%d\n", n);
	return 0;
}

Compiler output:
main.c: In function 'main':
main.c:6:9: error: implicit declaration of function 'scanf_s'; did you mean 'scanf'? [-Wimplicit-function-declaration]
    6 |         scanf_s("%d", &n);
      |         ^~~~~~~
      |         scanf
Language: C

int main()
{
	int a, b;
	scanf_s("%d",& a);
	b = 0.5 * a*(a + 1);
	printf("%d", b);
    return 0;
}



Compiler output:
main.c: In function 'main':
main.c:4:9: error: implicit declaration of function 'scanf_s' [-Wimplicit-function-declaration]
    4 |         scanf_s("%d",& a);
      |         ^~~~~~~
main.c:6:9: error: implicit declaration of function 'printf' [-Wimplicit-function-declaration]
    6 |         printf("%d", b);
      |         ^~~~~~
main.c:1:1: note: include '<stdio.h>' or provide a declaration of 'printf'
  +++ |+#include <stdio.h>
    1 | int main()
main.c:6:9: warning: incompatible implicit declaration of built-in function 'printf' [-Wbuiltin-declaration-mismatch]
    6 |         printf("%d", b);
      |         ^~~~~~
main.c:6:9: note: include '<stdio.h>' or provide a declaration of 'printf'
Language: C

#include <stdio.h>

int main()
{
	int n;
	printf("人数入力:");
	scanf_s("%d", &n);
	n = n * (n + 1) / 2;
	printf("必要な飴の個数は%d個\n", n);
	return 0;
}

Compiler output:
main.c: In function 'main':
main.c:7:9: error: implicit declaration of function 'scanf_s'; did you mean 'scanf'? [-Wimplicit-function-declaration]
    7 |         scanf_s("%d", &n);
      |         ^~~~~~~
      |         scanf
Language: C

int main()
{
	int a, b,i;
	scanf_s("%d",& a);
	b = 1 / 2 * a*(a + 1);
	printf("%d", b);
    return 0;
}


Compiler output:
main.c: In function 'main':
main.c:4:9: error: implicit declaration of function 'scanf_s' [-Wimplicit-function-declaration]
    4 |         scanf_s("%d",& a);
      |         ^~~~~~~
main.c:6:9: error: implicit declaration of function 'printf' [-Wimplicit-function-declaration]
    6 |         printf("%d", b);
      |         ^~~~~~
main.c:1:1: note: include '<stdio.h>' or provide a declaration of 'printf'
  +++ |+#include <stdio.h>
    1 | int main()
main.c:6:9: warning: incompatible implicit declaration of built-in function 'printf' [-Wbuiltin-declaration-mismatch]
    6 |         printf("%d", b);
      |         ^~~~~~
main.c:6:9: note: include '<stdio.h>' or provide a declaration of 'printf'
Language: C++

#include "bits\stdc++.h"
using namespace std;

int main() {

	int N, res = 0;
	cin >> N;
	for (int i = 1; i <= N; i++) res += i;

	cout << res << endl;

	return 0;
}

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<iostream>
using namespace std;

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

Compiler output:
a.cc:12:1: error: 'cout' does not name a type
   12 | cout << ans << endl;
      | ^~~~
a.cc:13:1: error: expected declaration before '}' token
   13 | }
      | ^
Language: C++

#include <iostream>
 int main() {
   int N;
   int ans = 0;
   std::cin >> N;
     for (int i = 1; i =< N; i++) {
       ans += i;
   }
    std::cout << ans <<std::endl;
   
   
   return 0;
   
 }

Compiler output:
a.cc: In function 'int main()':
a.cc:6:25: error: expected primary-expression before '<' token
    6 |      for (int i = 1; i =< N; i++) {
      |                         ^
Language: C++

#include <iostream>
 int main() {
   int N;
   int ans = 0;
   std::cin >> N;
     for (int i = 1 i > N i++) {
       ans += i;
   }
    std::cout << ans <<std::endl;
   
   
   return 0;
   
 }

Compiler output:
a.cc: In function 'int main()':
a.cc:6:20: error: expected ';' before 'i'
    6 |      for (int i = 1 i > N i++) {
      |                    ^~
      |                    ;
a.cc:6:26: error: expected ';' before 'i'
    6 |      for (int i = 1 i > N i++) {
      |                          ^~
      |                          ;
Language: C++

#include <iostream>
 int main() {
   int N;
   int ans = 0;
   std::cin >> N;
     for (int i = 1; i > N; i++;) {
       ans += i;
   }
    std::cout << ans <<std::endl;
   
   
   return 0;
   
 }

Compiler output:
a.cc: In function 'int main()':
a.cc:6:32: error: expected ')' before ';' token
    6 |      for (int i = 1; i > N; i++;) {
      |          ~                     ^
      |                                )
a.cc:6:33: error: expected primary-expression before ')' token
    6 |      for (int i = 1; i > N; i++;) {
      |                                 ^
Language: C++

#include <iostream>
 int main() {
   int N;
   int ans = 0;
   int a = 0;
   std::cin >> N;
     for (int i = 0; i == N; i++;) {
       a++;
       ans += a;
   }
    std::cout << ans <<std::endl;
   
   
   return 0;
   
 }

Compiler output:
a.cc: In function 'int main()':
a.cc:7:33: error: expected ')' before ';' token
    7 |      for (int i = 0; i == N; i++;) {
      |          ~                      ^
      |                                 )
a.cc:7:34: error: expected primary-expression before ')' token
    7 |      for (int i = 0; i == N; i++;) {
      |                                  ^