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

#include<stdio.h>
#include<math.h>
 
int main(){
  int n;
  scanf("%d",&n);
 
  int i;
  int ans =0;
  for(i=0;i<=sqrt(n);i++){
    ans = i*i;
  }
 
 
 
  printf("%d\n",ans);
 
 
  return 0;
 

Compiler output:
a.cc: In function 'int main()':
a.cc:19:12: error: expected '}' at end of input
   19 |   return 0;
      |            ^
a.cc:4:11: note: to match this '{'
    4 | int main(){
      |           ^
Language: C++

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

int main()
{
	int N;
	cin >> N;
	int n = sqrt(N);

	cout << n * n << endl;



	return 0;
}



Compiler output:
a.cc: In function 'int main()':
a.cc:11:17: error: 'sqrt' was not declared in this scope
   11 |         int n = sqrt(N);
      |                 ^~~~
Language: C++

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

#define LL long long int
using namespace std;

int main(void)
{
	LL n;
	int i = 1;
	cin >> n;
	LL temp = 0;

	while (1) {
		temp = pow(i, 2);
		if (temp > n) {
			break;
		}
		i++;
	}

	cout << (LL)pow(i - 1, 2) << endl;
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:16:24: error: 'pow' was not declared in this scope
   16 |                 temp = pow(i, 2);
      |                        ^~~
a.cc:23:21: error: 'pow' was not declared in this scope
   23 |         cout << (LL)pow(i - 1, 2) << endl;
      |                     ^~~
Language: C++

#include <iostream>

bool IsSquareNumber(int number);

int main(int argc, char const *argv[]) {

    int N;
    std::cin >> N;

    for(int num = N ; num > 0 ; num-- ){
        if(IsSquareNumber(num)){
            std::cout << num << '\n';
            break;
        }
    }

    return 0;
}

bool IsSquareNumber(int number)
{
    int origin_number = number;
    int border = number / 2;
    for(int num = 1 ; num < border ; num++ )
        if(pow(num,2) == origin_number)
            return true;
    return false;
}


Compiler output:
a.cc: In function 'bool IsSquareNumber(int)':
a.cc:25:12: error: 'pow' was not declared in this scope
   25 |         if(pow(num,2) == origin_number)
      |            ^~~
Language: C++

#include <iostream>
#include <math>
using namespace std;
int main(){
  int n;
  cin >> n;
  int a = sqrt(n);
  cout << a * a << endl;
}

Compiler output:
a.cc:2:10: fatal error: math: No such file or directory
    2 | #include <math>
      |          ^~~~~~
compilation terminated.
Language: C++

#include<iostream>
#include<stdio.h>
#include<math.h>
using namespace std;
int main(){
	int n;
	cin>>n;
	int max=1;
	for(int i=1;i<=n;i++){
		if(max<i*i){
			if(i*i>n){
				cout<<max<<endl;
				break;
			}
			else{
				max=i*i;
			}
		}
	}
}A

Compiler output:
a.cc:20:2: error: 'A' does not name a type
   20 | }A
      |  ^
Language: C++

#include<iostream>
#include<algorithm>

using namespace std;

int main() {
	
	int a, b;

	cin >> a;

	b = sqrt(a);

	cout << a*a << endl;

	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:12:13: error: 'sqrt' was not declared in this scope
   12 |         b = sqrt(a);
      |             ^~~~
Language: C++

#include<iostream>
#include<algorithm>

using namespace std;

int main() {
	
	int a;

	cin >> a;

	a = sqrt(a);

	cout << a*a << endl;

	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:12:13: error: 'sqrt' was not declared in this scope
   12 |         a = sqrt(a);
      |             ^~~~
Language: C++

#include<iostream>
#include<string>
#include<algorithm>
using namespace std;
int main(){
	int a;
	cin>>a;
	for(int i=0;;i++){
		if((i*i)>a){
		
		break;
	}
	cout<<(i-1)*(i-1)<<endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:14:2: error: expected '}' at end of input
   14 | }
      |  ^
a.cc:5:11: note: to match this '{'
    5 | int main(){
      |           ^
Language: C++

#include <iostream>
#include <cmath>
using namespace std;
int main(){
	int n,jj;
	double j;
	cin>>n;
	for(int i=n;i>0;i--){
		j=sqrt((double)i);
		j=fmod(j,1.0);
		if(j%==0){
			cout<<i<<endl;
			break;
		}
	}
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:11:23: error: expected primary-expression before '=' token
   11 |                 if(j%==0){
      |                       ^
Language: C++

use std::io;

fn next_int() -> i64 {
    let mut buf = String::new();
    io::stdin().read_line(&mut buf).unwrap();
    buf.trim().parse().unwrap()
}

fn main() {
    let n = next_int();

    let mut i: i64 = 1;
    while (i+1) * (i+1) <= n {
        i += 1;
    }
    println!("{:?}", i*i);
}


Compiler output:
a.cc:1:1: error: 'use' does not name a type
    1 | use std::io;
      | ^~~
a.cc:3:1: error: 'fn' does not name a type
    3 | fn next_int() -> i64 {
      | ^~
a.cc:9:1: error: 'fn' does not name a type
    9 | fn main() {
      | ^~
Language: C++

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

int main(void)
{
	int N;
	cin >> N;

	int n = sqrt(N);
	cout << n*n << endl;

	return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:12:17: error: 'sqrt' was not declared in this scope
   12 |         int n = sqrt(N);
      |                 ^~~~
Language: C++

include <iostream>
using namespace std;
 
int main(){
    int N;
    cin >> N;
    for(int i = 0; i < 1e5; i++){
        if(N < i * i){
            cout << (i - 1) * (i - 1) << 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:9:13: error: 'cout' was not declared in this scope
    9 |             cout << (i - 1) * (i - 1) << endl;
      |             ^~~~
a.cc:9:42: error: 'endl' was not declared in this scope
    9 |             cout << (i - 1) * (i - 1) << endl;
      |                                          ^~~~
Language: Java

import java.*;

public class Main(){

    public static void main(String[] args) {
        int N;
        int i=0;
        Scanner s=new Scanner;
        while (++i*i<N);
        i--;
        System.out.println(i*i);
    }
}

Compiler output:
Main.java:3: error: '{' expected
public class Main(){
                 ^
Main.java:8: error: '(' or '[' expected
        Scanner s=new Scanner;
                             ^
2 errors
Language: C++

#include <iostream>

using namespace std;

void stop()
{
	while (true);
}

int main()
{
	int n;

	cin >> n;

	int root = sqrt(n);
	cout << root * root << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:16:20: error: 'sqrt' was not declared in this scope
   16 |         int root = sqrt(n);
      |                    ^~~~
Language: C++

#include <iostream>

using namespace std;

int main(){
    int n;
    int i = 1;

    cin >> n;

    while(i*i <=){
        i++;
    }

    cout << i*i << endl;

    return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:11:17: error: expected primary-expression before ')' token
   11 |     while(i*i <=){
      |                 ^
Language: C++

import math;print(int(math.sqrt(int(input())))**2)

Compiler output:
a.cc:1:1: error: 'import' does not name a type
    1 | import math;print(int(math.sqrt(int(input())))**2)
      | ^~~~~~
a.cc:1:1: note: C++20 'import' only available with '-fmodules-ts'
a.cc:1:18: error: expected constructor, destructor, or type conversion before '(' token
    1 | import math;print(int(math.sqrt(int(input())))**2)
      |                  ^
Language: C++


// B - Around Square
#include<iostream>
using namespace std;
int main()
{
	int input;
	cin >> input;

	int cnt;
	int result;
	while(cnt * cnt <= input)
	{
		result = cnt * cnt;
		++cnt;
	}
	cout << result2 << endl;
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:17:17: error: 'result2' was not declared in this scope; did you mean 'result'?
   17 |         cout << result2 << endl;
      |                 ^~~~~~~
      |                 result
Language: C++

// B - Around Square
#include<iostream>
using namespace std;
int main()
{
	int input;
	cin >> input;

	int cnt;
	int result;
	while(cnt * cnt <= input)
	{
		result;
		++cnt;
	}
	cout << result2 << endl;
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:16:17: error: 'result2' was not declared in this scope; did you mean 'result'?
   16 |         cout << result2 << endl;
      |                 ^~~~~~~
      |                 result
Language: C++

#include <iostream>
using namespace std;
int main(void){
    // Your code here!
    int N;
    cin >> N;
    for (int i = 0; i <= N; i++)
    {
        if (i * i > N)
        {
            cout << (i - 1) * (i - 1) << endl;
        }
    }
    }
}

Compiler output:
a.cc:15:1: error: expected declaration before '}' token
   15 | }
      | ^
Language: C++

#include<algorithm>
#include<iostream>
#include<cstdlib>
#include<cstring>
#include<climits>
#include<iomanip>
#include<complex>
#include<cstdio>
#include<vector>
#include<queue>
#include<stack>
#include<cmath>
#include<list>
#include<map>
#include<set>
using namespace std;

typedef vector<int> VI;
typedef vector<VI> VVI;
typedef vector<string> VS;
typedef stack<int> SI;
typedef queue<int> QI;
typedef list<int> LI;
typedef pair<int,int> PII;
typedef long long LL;

#define d(x)  cout<<#x<<" = "<<(x)<<endl;
#define ALL(a)  (a).begin(),(a).end()
#define RALL(a) (a).rbegin(), (a).rend()
#define PB push_back
#define MP make_pair
#define EMP empty()
#define SZ(a) int((a).size())
#define EACH(i,c) for(typeof((c).begin()) i=(c).begin(); i!=(c).end(); ++i)
#define REACH(i,c) for(typeof((c).rbegin()) i=(c).rbegin(); i!=(c).rend(); ++i)
#define EXIST(s,e) ((s).find(e)!=(s).end())
#define SORT(c,n) sort(c,c+n)
#define VSORT(c) sort((c).begin(),(c).end())
#define FOR(i,a,b) for(int i=(a);i<(b);++i)
#define REP(i,n)  FOR(i,0,n)
#define DFOR(i,b,a) for(int i=(b)-1;i>=(a);--i)
#define DREP(i,n) DFOR(i,n,0)
#define INF 1000000000
#define PI  acos(-1.0)
////////////////////////////////////////////////
int main()
{
	int n;cin>>n;
	for(;sqrt(n)==(int)sqrt(n);n--;);
	cout<<n<<endl;
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:49:39: error: expected ')' before ';' token
   49 |         for(;sqrt(n)==(int)sqrt(n);n--;);
      |            ~                          ^
      |                                       )
a.cc:49:40: error: expected primary-expression before ')' token
   49 |         for(;sqrt(n)==(int)sqrt(n);n--;);
      |                                        ^
Language: C++

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

typedef long long ll;

int N,K;
char S[200020] = {0};
int a,b;
ll ans = 10000000000;

int main()
{
    scanf("%d",&N);
    printf("%d\n",(int)sqrt(N) * sqrt(N));
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:16:24: error: 'sqrt' was not declared in this scope
   16 |     printf("%d\n",(int)sqrt(N) * sqrt(N));
      |                        ^~~~
Language: C++

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

typedef long long ll;

ll N,K;
char S[200020] = {0};
int a,b;
ll ans = 10000000000;

int main()
{
    scanf("%d",&N);
    printf("%d\n",(int)sqrt(N) * sqrt(N));
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:16:24: error: 'sqrt' was not declared in this scope
   16 |     printf("%d\n",(int)sqrt(N) * sqrt(N));
      |                        ^~~~
Language: C++

#include <iostream>
#include <cstdio>
#define EPS 1e-8
using namespace std;

int main(){
	int n,k;
	cin >> n;
	k = (int)(sqrt(n) + EPS);
	cout << k * k << endl;
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:9:19: error: 'sqrt' was not declared in this scope
    9 |         k = (int)(sqrt(n) + EPS);
      |                   ^~~~
Language: C++

#include <iostream>
#define EPS 1e-8
using namespace std;

int main(){
	int n,k;
	cin >> n;
	k = (int)(sqrt(n) + EPS);
	cout << k * k << endl;
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:8:19: error: 'sqrt' was not declared in this scope
    8 |         k = (int)(sqrt(n) + EPS);
      |                   ^~~~
Language: C++

#include<cstdio>
#include<string>
#include<cmath>
#include<algorithm>
int main()
{
	int a,b,c,i,n,m;
	scanf("%d",&a);
	b=(int)sqrt(a);
	c=b*b;
	if(c==a)
		printf("%d\n",a);
	else
		{
			printf("%d\n",c);
return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:17:2: error: expected '}' at end of input
   17 | }
      |  ^
a.cc:6:1: note: to match this '{'
    6 | {
      | ^
Language: C++

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

int main()
{
	int a,n;
	scanf("%d\n",n);
	a=sqrt(n);
	if(n==a*a)
		printf("%d",n);
	else
		return 0;
}

Compiler output:
a.cc:2:10: fatal error: math: No such file or directory
    2 | #include <math>
      |          ^~~~~~
compilation terminated.
Language: C++

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

int main()
{
	int a,b,c;
	scanf("%d\n",&a);
	c=sqrt(a);
	if(int i = 1 ; i <= c ; i++ )
		b=i^2;
	printf("%d",b);
}

Compiler output:
a.cc: In function 'int main()':
a.cc:12:30: error: expected ')' before ';' token
   12 |         if(int i = 1 ; i <= c ; i++ )
      |           ~                  ^~
      |                              )
a.cc:12:33: error: 'i' was not declared in this scope
   12 |         if(int i = 1 ; i <= c ; i++ )
      |                                 ^
Language: C++

    #include <stdio.h>
    #include <cmath>
    int main()
    (
    int N,m;
    scanf("%d",&N);
    m = sqrt (N);
    printf("%d", m*m);
    return 0;
    }

Compiler output:
a.cc:5:11: error: 'm' has not been declared
    5 |     int N,m;
      |           ^
a.cc:5:12: error: expected ')' before ';' token
    5 |     int N,m;
      |            ^
      |            )
a.cc:4:5: note: to match this '('
    4 |     (
      |     ^
a.cc:3:5: error: 'main' declared as function returning a function
    3 |     int main()
      |     ^~~
a.cc:6:10: error: expected constructor, destructor, or type conversion before '(' token
    6 |     scanf("%d",&N);
      |          ^
a.cc:7:5: error: 'm' does not name a type
    7 |     m = sqrt (N);
      |     ^
a.cc:8:11: error: expected constructor, destructor, or type conversion before '(' token
    8 |     printf("%d", m*m);
      |           ^
a.cc:9:5: error: expected unqualified-id before 'return'
    9 |     return 0;
      |     ^~~~~~
a.cc:10:5: error: expected declaration before '}' token
   10 |     }
      |     ^
Language: C++

#include<iostream>
using namespace std;
int main(){
	
	int dow,ii;
	cin>>dow;
	for(int i=0;;i++){
		if(i*i>dow){
			cout<<ii<<endl;
			break;
		}
		ii=i*i;
	}
	
	return

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

#include <cstdio>
int main(){
	int N,i,j;
	scanf("%d",&N);
	for(i=0;i<N;i++)
	{
		j=i*i;
		if(j>N){
			j=(i-1)*(i-1);
			break;
		}
	}
	printf("%d\n",j);
	return 0;
}



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

#include <stdio.h>
#include <cmath>
int main()
(
int N,m;
printf("input N:");
scanf("%d",&N);
m = sqrt (N);
printf("%d", m*m);
return 0;
}

Compiler output:
a.cc:5:7: error: 'm' has not been declared
    5 | int N,m;
      |       ^
a.cc:5:8: error: expected ')' before ';' token
    5 | int N,m;
      |        ^
      |        )
a.cc:4:1: note: to match this '('
    4 | (
      | ^
a.cc:3:1: error: 'main' declared as function returning a function
    3 | int main()
      | ^~~
a.cc:6:7: error: expected constructor, destructor, or type conversion before '(' token
    6 | printf("input N:");
      |       ^
a.cc:7:6: error: expected constructor, destructor, or type conversion before '(' token
    7 | scanf("%d",&N);
      |      ^
a.cc:8:1: error: 'm' does not name a type
    8 | m = sqrt (N);
      | ^
a.cc:9:7: error: expected constructor, destructor, or type conversion before '(' token
    9 | printf("%d", m*m);
      |       ^
a.cc:10:1: error: expected unqualified-id before 'return'
   10 | return 0;
      | ^~~~~~
a.cc:11:1: error: expected declaration before '}' token
   11 | }
      | ^
Language: C

#include <cstdio>
void main(){
	int N,i,j;
	scanf("%d",&N);
	for(i=0;i<N;i++)
	{
		j=i*i;
		if(j>N){
			j=(i-1)*(i-1);
			break;
		}
	}
	printf("%d\n",j);
}



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

#include<cstdio>
#include<cstring>
#include<iostream>
#include<algorithm>
#include<cmath> 
int main()
{
	int n,m;
	double r;
	printf("N");
	scanf("%d",&n);

	if(n >= 1 && n <= 109)
		r = sqrt(n)
		if(m <= n && r==)
             printf("%d",n);


	}

Compiler output:
a.cc: In function 'int main()':
a.cc:14:28: error: expected ';' before 'if'
   14 |                 r = sqrt(n)
      |                            ^
      |                            ;
   15 |                 if(m <= n && r==)
      |                 ~~
Language: C

#include <stdio.h>

int main(){
   int N,b;
   int x=1;
   double a;
   int i,j;
   scanf("%d",&N);
  
   if(N>=2){
    for(i=1;i<=N;i++){
     for(j=1;j<=i/2){
      if(i==j*j){
       x=i;
      }
     }
    }

   printf("%d\n",x);
}

Compiler output:
main.c: In function 'main':
main.c:12:20: error: expected ';' before ')' token
   12 |      for(j=1;j<=i/2){
      |                    ^
      |                    ;
main.c:20:1: error: expected declaration or statement at end of input
   20 | }
      | ^
Language: C

#include<stdio.h>
#include<math.h>
int main() 
{
    int a;
    scanf("%d", &a);
    while((int)sqrt(a)*(int)sqrt(a) != a) {
      a--;
     }
   
printf("%d", a);


Compiler output:
main.c: In function 'main':
main.c:11:1: error: expected declaration or statement at end of input
   11 | printf("%d", a);
      | ^~~~~~
Language: C++

#include <cstdio>
#include <cstdlib>
#include <cmath>
#include <cstring>
#include <algorithm>
#include <map>
#include <set>
#include <queue>
#include <ctime>
#include <vector>

using namespace std;

void main(){
	int a,i,j;
	scanf("%d",&a);
	for(i=0;i<a;i++)
	{
		j=i*i;
		if(j>a){
			j=(i-1)*(i-1);
			break;
		}
	}
	printf("%d",j);
}



Compiler output:
a.cc:14:1: error: '::main' must return 'int'
   14 | void main(){
      | ^~~~
Language: C

#include<stdio.h>
#include<math.h>
int main()
{
	double n;
	double i; 
	scanf("%lf",&n);
for(i=n;i>0;i--)
	{	if(int(i)%int(sqrt(i))==0)
	{
	
		printf("%.0lf\n",i);
		break;
	}
	}

	
	return 0;
}

Compiler output:
main.c: In function 'main':
main.c:9:20: error: expected expression before 'int'
    9 |         {       if(int(i)%int(sqrt(i))==0)
      |                    ^~~
Language: C++

#include<algorithm>
#include<cmath>
using namespace std;
int main()
{
long long N,M,x,y;
scanf("%lld",&N);
x=sqrt(N);
y=N%x;
if(y==x){
	printf("%lld\n",N);
}
	else{
		for(double i =1;i<=N;i++){
			x=sqrt(N);
			if(y==x)
				break;
				}
			M=x*x;
			printf("%lld\n",M);
	}


Compiler output:
a.cc: In function 'int main()':
a.cc:7:1: error: 'scanf' was not declared in this scope
    7 | scanf("%lld",&N);
      | ^~~~~
a.cc:11:9: error: 'printf' was not declared in this scope
   11 |         printf("%lld\n",N);
      |         ^~~~~~
a.cc:3:1: note: 'printf' is defined in header '<cstdio>'; this is probably fixable by adding '#include <cstdio>'
    2 | #include<cmath>
  +++ |+#include <cstdio>
    3 | using namespace std;
a.cc:20:25: error: 'printf' was not declared in this scope
   20 |                         printf("%lld\n",M);
      |                         ^~~~~~
a.cc:20:25: note: 'printf' is defined in header '<cstdio>'; this is probably fixable by adding '#include <cstdio>'
a.cc:21:10: error: expected '}' at end of input
   21 |         }
      |          ^
a.cc:5:1: note: to match this '{'
    5 | {
      | ^
Language: C++

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

int main()
{
	int a;
	(1<=a&&a<109);
	scanf("%d",&a);
	b=sqrt(a);
	printf("%d",a);
	return 0;
}	

Compiler output:
a.cc: In function 'int main()':
a.cc:10:9: error: 'b' was not declared in this scope
   10 |         b=sqrt(a);
      |         ^
Language: C++

#include <iostream>
#include <algorithm>
#include<cstdio>
#include<string>
#include<vector>
using namespace std;
int main() {
	int a,b;
	cin >>a;
	
	for (int i = 1; i < a; i++) {
		if (i*i > a) {
			cout << (i - 1)*(i - 1) << endl;
			break;
		}
	}
 
	return 0;
}

Compiler output:
a.cc:17:1: error: extended character   is not valid in an identifier
   17 |  
      | ^
a.cc: In function 'int main()':
a.cc:17:1: error: '\U000000a0' was not declared in this scope
   17 |  
      | ^
Language: C++

#include <iostream>
using namespace std;
int main() {
	unsigned int N;
	cin >> N;
	while (true) {
		if (floor(sqrt(N)) == sqrt(N)) {
			cout << N;
			return 0;
		}
		N--;
	}
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:7:27: error: 'sqrt' was not declared in this scope
    7 |                 if (floor(sqrt(N)) == sqrt(N)) {
      |                           ^~~~
a.cc:7:21: error: 'floor' was not declared in this scope
    7 |                 if (floor(sqrt(N)) == sqrt(N)) {
      |                     ^~~~~
Language: C

#include<cstdio>
#include<cstdlib>
#include<algorithm>
#include<iostream>
#include<cmath>
using namespace std;

int main()
{
	int n,i;
	printf("n(1=<n&&n<=109):");
	scanf("%d",&n);
	for(i=1;i*i<=n;i++);
			printf("%d\n",i-1);
}
	
	
		



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

#include <iostream>
using namespace std;
int main() {
	uint16_t N;
	cin >> N;
	while (true) {
		if (floor(sqrt(N)) == sqrt(N)) {
			cout << N;
			return 0;
		}
		N--;
	}
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:4:9: error: 'uint16_t' was not declared in this scope
    4 |         uint16_t N;
      |         ^~~~~~~~
a.cc:2:1: note: 'uint16_t' is defined in header '<cstdint>'; this is probably fixable by adding '#include <cstdint>'
    1 | #include <iostream>
  +++ |+#include <cstdint>
    2 | using namespace std;
a.cc:5:16: error: 'N' was not declared in this scope
    5 |         cin >> N;
      |                ^
a.cc:7:27: error: 'sqrt' was not declared in this scope
    7 |                 if (floor(sqrt(N)) == sqrt(N)) {
      |                           ^~~~
a.cc:7:21: error: 'floor' was not declared in this scope
    7 |                 if (floor(sqrt(N)) == sqrt(N)) {
      |                     ^~~~~
Language: C++

#include<bits/stdc++.h>

using namespace std;

int maina(){

    int N;
    int i=1,a,b;
    cin >>N;

    for(int i=0;a<b;i++){
        b=(double)i;
        a=(int)pow(i,2);
    }
    cout<<a<<endl;
}

Compiler output:
a.cc: In function 'int maina()':
a.cc:16:1: warning: no return statement in function returning non-void [-Wreturn-type]
   16 | }
      | ^
/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<iostream>
#include<algorithm>
using namespace std;
int main(){
    long long N,i=1;
    cin>>N;
    while(i^2<=N){
      i++;
    }
    i--;
    cout<<i^2<<endl;
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:11:14: error: invalid operands of types 'int' and '<unresolved overloaded function type>' to binary 'operator<<'
   11 |     cout<<i^2<<endl;
      |             ~^~~~~~
Language: C++

#include<cstdio>
#include<iostream>
#include<algorithm>
#include<cstring>
#include<cmath>

using namespace std;


int	f(long long x){
	int i;
	for(i=1;i<=n;i++)
	{
		if(sqrt(n)==i)
		{
		return 1;
		break;}
	}
    return 0;
}

int main(){
	long long n;
	int j=0;
	scanf("%lld",&n);
	for(int i=n;i>0;i--)
	{
		j=f(i);
	    if(j)break;
	}
	printf("%lld\n",i);
}

				
		
    


Compiler output:
a.cc: In function 'int f(long long int)':
a.cc:12:20: error: 'n' was not declared in this scope
   12 |         for(i=1;i<=n;i++)
      |                    ^
a.cc: In function 'int main()':
a.cc:31:25: error: 'i' was not declared in this scope
   31 |         printf("%lld\n",i);
      |                         ^
Language: C++

#include <math.h>
#include <algorithm>
#include <functional>
#include <iostream>
#include <numeric>
#include <queue>
#include <set>
#include <string>
#include <unordered_map>
#include <vector>

using namespace std;

using ll = long long;

ll N, ans;

int main() {
    cin >> N;

    while (N != 0) {
        long double sq = sqrt(long double(N));
        if (sq == ll(sq)) { ans = N; break; }
        N--;
    }

    cout << ans << endl;

    cin >> N;

    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:22:31: error: expected primary-expression before 'long'
   22 |         long double sq = sqrt(long double(N));
      |                               ^~~~
Language: C++

#include <iostream>
#include <iomanip>
#include <vector>
#include <algorithm>
#include <string>
#include <map>
#include <stdio.h>
#include <stdlib.h>
#include <list>

using namespace std;

const double pi = 3.14159265358979323846;
const int mod = 1000000007;

int main(){
  int N;

  cin >> N;
  cout << (int)pow(floor(sqrt(N)),2) << endl;

  return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:20:26: error: 'sqrt' was not declared in this scope
   20 |   cout << (int)pow(floor(sqrt(N)),2) << endl;
      |                          ^~~~
a.cc:20:20: error: 'floor' was not declared in this scope
   20 |   cout << (int)pow(floor(sqrt(N)),2) << endl;
      |                    ^~~~~
a.cc:20:16: error: 'pow' was not declared in this scope
   20 |   cout << (int)pow(floor(sqrt(N)),2) << endl;
      |                ^~~
Language: C++

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

Compiler output:
a.cc:3:5: error: cannot declare '::main' to be a global variable
    3 | int main{
      |     ^~~~
a.cc:4:3: error: expected primary-expression before 'int'
    4 |   int N;
      |   ^~~
a.cc:4:3: error: expected '}' before 'int'
a.cc:3:9: note: to match this '{'
    3 | int main{
      |         ^
a.cc:6:3: error: 'cin' does not name a type
    6 |   cin>>N;
      |   ^~~
a.cc:7:3: error: expected unqualified-id before 'for'
    7 |   for(int i=0;i*i <= N;i++)res = i*i;
      |   ^~~
a.cc:7:15: error: 'i' does not name a type
    7 |   for(int i=0;i*i <= N;i++)res = i*i;
      |               ^
a.cc:7:24: error: 'i' does not name a type
    7 |   for(int i=0;i*i <= N;i++)res = i*i;
      |                        ^
a.cc:8:3: error: 'cout' does not name a type
    8 |   cout<<res;
      |   ^~~~
a.cc:9:3: error: expected unqualified-id before 'return'
    9 |   return 0;
      |   ^~~~~~
a.cc:10:1: error: expected declaration before '}' token
   10 | }
      | ^
Language: C++

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


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


Compiler output:
a.cc: In function 'int main()':
a.cc:10:18: error: no matching function for call to 'max(long long int&, int)'
   10 |         res = max(res,i*i);
      |               ~~~^~~~~~~~~
In file included from /usr/include/c++/14/algorithm:60,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:51,
                 from a.cc:1:
/usr/include/c++/14/bits/stl_algobase.h:257:5: note: candidate: 'template<class _Tp> constexpr const _Tp& std::max(const _Tp&, const _Tp&)'
  257 |     max(const _Tp& __a, const _Tp& __b)
      |     ^~~
/usr/include/c++/14/bits/stl_algobase.h:257:5: note:   template argument deduction/substitution failed:
a.cc:10:18: note:   deduced conflicting types for parameter 'const _Tp' ('long long int' and 'int')
   10 |         res = max(res,i*i);
      |               ~~~^~~~~~~~~
/usr/include/c++/14/bits/stl_algobase.h:303:5: note: candidate: 'template<class _Tp, class _Compare> constexpr const _Tp& std::max(const _Tp&, const _Tp&, _Compare)'
  303 |     max(const _Tp& __a, const _Tp& __b, _Compare __comp)
      |     ^~~
/usr/include/c++/14/bits/stl_algobase.h:303:5: note:   candidate expects 3 arguments, 2 provided
In file included from /usr/include/c++/14/algorithm:61:
/usr/include/c++/14/bits/stl_algo.h:5706:5: note: candidate: 'template<class _Tp> constexpr _Tp std::max(initializer_list<_Tp>)'
 5706 |     max(initializer_list<_Tp> __l)
      |     ^~~
/usr/include/c++/14/bits/stl_algo.h:5706:5: note:   candidate expects 1 argument, 2 provided
/usr/include/c++/14/bits/stl_algo.h:5716:5: note: candidate: 'template<class _Tp, class _Compare> constexpr _Tp std::max(initializer_list<_Tp>, _Compare)'
 5716 |     max(initializer_list<_Tp> __l, _Compare __comp)
      |     ^~~
/usr/include/c++/14/bits/stl_algo.h:5716:5: note:   template argument deduction/substitution failed:
a.cc:10:18: note:   mismatched types 'std::initializer_list<_Tp>' and 'long long int'
   10 |         res = max(res,i*i);
      |               ~~~^~~~~~~~~
Language: C++

#include <iostream>
#include <algorithm>

using namespace std;
int main()
{
	int n;
	cin >> n;
	cout << (int)pow((int)sqrt(n), 2);
}

Compiler output:
a.cc: In function 'int main()':
a.cc:9:31: error: 'sqrt' was not declared in this scope
    9 |         cout << (int)pow((int)sqrt(n), 2);
      |                               ^~~~
a.cc:9:22: error: 'pow' was not declared in this scope
    9 |         cout << (int)pow((int)sqrt(n), 2);
      |                      ^~~
Language: C++

#include<iostream>
using namespace std;
int main{
  int N,res;
  cin>>N;
  for(int i=0;i*i <= N;i++)res = i*i;
  cout<<res;
  return 0;
}

Compiler output:
a.cc:3:5: error: cannot declare '::main' to be a global variable
    3 | int main{
      |     ^~~~
a.cc:4:3: error: expected primary-expression before 'int'
    4 |   int N,res;
      |   ^~~
a.cc:4:3: error: expected '}' before 'int'
a.cc:3:9: note: to match this '{'
    3 | int main{
      |         ^
a.cc:5:3: error: 'cin' does not name a type
    5 |   cin>>N;
      |   ^~~
a.cc:6:3: error: expected unqualified-id before 'for'
    6 |   for(int i=0;i*i <= N;i++)res = i*i;
      |   ^~~
a.cc:6:15: error: 'i' does not name a type
    6 |   for(int i=0;i*i <= N;i++)res = i*i;
      |               ^
a.cc:6:24: error: 'i' does not name a type
    6 |   for(int i=0;i*i <= N;i++)res = i*i;
      |                        ^
a.cc:7:3: error: 'cout' does not name a type
    7 |   cout<<res;
      |   ^~~~
a.cc:8:3: error: expected unqualified-id before 'return'
    8 |   return 0;
      |   ^~~~~~
a.cc:9:1: error: expected declaration before '}' token
    9 | }
      | ^
Language: C++

#include <set>
#include <string>
#include <unordered_map>
#include <vector>

using namespace std;

using ll = long long;

ll N, ans;

int main() {
    cin >> N;

    while (N != 0) {
        ll sq = sqrt(N);
        if (sq - int(sq) == 0) { ans = sq; break; }
    }

    cout << ans << endl;

    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:13:5: error: 'cin' was not declared in this scope
   13 |     cin >> N;
      |     ^~~
a.cc:5:1: note: 'std::cin' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
    4 | #include <vector>
  +++ |+#include <iostream>
    5 | 
a.cc:16:17: error: 'sqrt' was not declared in this scope; did you mean 'sq'?
   16 |         ll sq = sqrt(N);
      |                 ^~~~
      |                 sq
a.cc:20:5: error: 'cout' was not declared in this scope
   20 |     cout << ans << endl;
      |     ^~~~
a.cc:20:5: note: 'std::cout' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
a.cc:20:20: error: 'endl' was not declared in this scope
   20 |     cout << ans << endl;
      |                    ^~~~
a.cc:5:1: note: 'std::endl' is defined in header '<ostream>'; this is probably fixable by adding '#include <ostream>'
    4 | #include <vector>
  +++ |+#include <ostream>
    5 |
Language: C++

#include <iostream>

using namespace std;
int main()
{
	int n;
	cin >> n;
	cout << (int)pow((int)sqrt(n), 2);
}

Compiler output:
a.cc: In function 'int main()':
a.cc:8:31: error: 'sqrt' was not declared in this scope
    8 |         cout << (int)pow((int)sqrt(n), 2);
      |                               ^~~~
a.cc:8:22: error: 'pow' was not declared in this scope
    8 |         cout << (int)pow((int)sqrt(n), 2);
      |                      ^~~
Language: C++

#include<iostream>
#include<string>
#include<algorithm>
#include <map>  
#include <string.h>

using namespace std;




int main()
{

	int n, r;

	cin >> n;
	r = (int)pow((double)n, 0.5);

	cout << (int)pow(r, 2) << endl;

	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:18:18: error: 'pow' was not declared in this scope
   18 |         r = (int)pow((double)n, 0.5);
      |                  ^~~
Language: C++

#include<iostream>
#include<utility>
#include<tuple>
#include<set>
#include<list>
#include<vector>
#include<map>
#include<algorithm>
#include<queue>

#define dump(x)  cerr << #x << " = " << (x) << endl;
#define debug(x) cerr << #x << " = " << (x) << " (L" << __LINE__ << ")" << " " << __FUNCTION__ << endl;
#define int long long

const long long MAXN = 1e6;
const long long MOD = 1e9+7;
const long long INF = __LONG_LONG_MAX__ / 2;

using namespace std;

int hoge[MAXN];

signed main(){
    int N;
    cin >> N;
    auto n = (int)sqrt(N);
    cout << n * n << endl;
    return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:26:19: error: 'sqrt' was not declared in this scope
   26 |     auto n = (int)sqrt(N);
      |                   ^~~~
Language: C++

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

int main(){
  int n;  cin >> n;
  vector<long long>a(n);  for(int i=0;i<n;i++)  cin >> a.at(i);
  vector<long long>b(n);  for(int i=0;i<n;i++)  cin >> b.at(i);
  vector<long long>c(n);  for(int i=0;i<n;i++)  cin >> c.at(i);
  sort(a.begin(),a.end());
  sort(c.begin(),c.end());

  long long ans = 0;
  for(int i=0;i<n;i++){
    auto Iter = lower_bound(a.begin(),a.end(),b.at(i));
    int count_a = Iter - a.begin();

    Iter = upper_bound(c.begin(),c.end(),b.at(i));
    int count_c = n - (Iter - c.begin());

    ans += count_a * count_c;
  }
  cout << ans << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:10:3: error: 'sort' was not declared in this scope; did you mean 'short'?
   10 |   sort(a.begin(),a.end());
      |   ^~~~
      |   short
a.cc:18:12: error: 'upper_bound' was not declared in this scope
   18 |     Iter = upper_bound(c.begin(),c.end(),b.at(i));
      |            ^~~~~~~~~~~
Language: C++

#include <iostream>
#include <iomanip>
#include <vector>
#include <algorithm>
#include <math.h>
#define int long long
unsigned int factorial(unsigned int n){
    if (n==0) return 1;
    else return n*factorial(n-1);
}
#define rep(i,n) for(int i=0;i<(int)n;i++)
#define ll long long
using namespace std;

int binary_search(vector<int> v,int key){
    int left=-1;
    int right=v.size();
    while(right-left>1){
        int mid=left+(right-left)/2;
        if (v[mid]>=key) right=mid;
        else left=mid;    
    }
    return right;
}

int main(){
    int n,ans=0;
    cin>>n;
    vector<int> a(n),b(n),c(n),wa(n),ruisekiwa(n);
    

    for(int i=0;i<n;i++){
        wa[i]=0;
        ruisekiwa[i]=0;
    }

    for(int i=0;i<n;i++) cin>>a[i];
    for(int i=0;i<n;i++) cin>>b[i];
    for(int i=0;i<n;i++) cin>>c[i];

    sort(a.begin(),a.end());
    sort(b.begin(),b.end());
    sort(c.begin(),c.end());

    for (int i=0;i<n;i++){
        wa[i]=binary_search(a,b[i]);
    }

    ruisekiwa[0]=wa[0];

    for (int i=1;i<n;i++){
        ruisekiwa[i]=ruisekiwa[i-1]+wa[i];
    }

    for (int i=0;i<n;i++){
        int num=binary_search(b,c[i]);
        if(num>0) ans+=ruisekiwa[num-1];
    }
    cout<<ans<<endl;

    return 0;
}

Compiler output:
cc1plus: error: '::main' must return 'int'
Language: Java

from bisect import bisect_left, bisect_right

n = int(input())
an = list(map(int, input().split()))
bn = list(map(int, input().split()))
cn = list(map(int, input().split()))

an.sort()
bn.sort()
cn.sort()

cnt = 0

for b in bn:
    a = bisect_left(an,b)
    c = bisect_right(cn,b)
    cnt += a * (n-c)
print(cnt)

Compiler output:
Main.java:1: error: class, interface, enum, or record expected
from bisect import bisect_left, bisect_right
^
1 error
Language: C

#include <stdio.h>
#include <stdlib.h>

int compare_int(const void *a, const void *b)
{
    return *(int*)a - *(int*)b;
}

int binary_search(int list[], int list_size, int x){
    int left, right, mid;
    left = 0;
    right = list_size - 1;

    while (left <= right) {
        mid = (left + right)/2;
        if(right - left == 1){
            return left;
        }else if(list[mid] < x){
            left = mid;
        }
        else{
            right = mid;
        }
    }
    return -1;
}


int main(void){
    int n, i;
    scanf("%d", &n);
    int a[100001], b[100001], c[100001];
    for(i = 0; i < n; i++){scanf("%d", &a[i]);}
    for(i = 0; i < n; i++){scanf("%d", &b[i]);}
    for(i = 0; i < n; i++){scanf("%d", &c[i]);}

    qsort(a, n, sizeof(int), compare_int);
    qsort(c, n, sizeof(int), compare_int);

    int a_b, b_c, k;
    int tmp;
    long long int ans = 0;
    for(i = 0; i < n; i++){
        if(b[i] > a[n - 1]){
            a_b = n;
        }else if(b[i] <= a[0]){
            a_b = 0;
        }else{
            a_b = binary_search(a, n, b[i]) + 1;//(条件を満たす最大の配置番号＋１)通りがある
        }

        if(b[i] >= c[n - 1]){
            b_c = 0;
        }else if(b[i] < c[0]){
            b_c = n;
        }else{
            tmp = binary_search(c, n, b[i]);
            b_c = n - tmp - 1;
            k = 1;
            while(1){
                if(c[tmp + k] == b[i]){
                    b_c--;
                }else{
                    break;
                }
                k++;}
        ans += a_b * b_c;
        //printf("%d %d %d\n", i, a_b, b_c);
    }
    printf("%lld\n", ans);
}

Compiler output:
main.c: In function 'main':
main.c:71:1: error: expected declaration or statement at end of input
   71 | }
      | ^
Language: C++

#include <iostream>
#include <vector>
#include <algorithm>
#include <cmath>
#include <iomanip>
#include <map>
using namespace std;
using ll = long long;

ll main(){
    ll n;
    cin >> n;
    vector<ll> a(n), b(n), c(n);
    ll i;
    for(i = 0; i < n; i++){
        ll inp;
        cin >> inp;
        a.at(i) = inp;
    }
    for(i = 0; i < n; i++){
        ll inp;
        cin >> inp;
        b.at(i) = inp;
    }
    for(i = 0; i < n; i++){
        ll inp;
        cin >> inp;
        c.at(i) = inp;
    }
    sort(a.begin(), a.end());
    sort(b.begin(), b.end());
    sort(c.begin(), c.end());

    ll count = 0;
    for(i = 0; i < n; i++){
        ll b0 = b.at(i);
        auto ita = lower_bound(a.begin(), a.end(), b0) - 1;
        auto itc = upper_bound(c.begin(), c.end(), b0);
        ll na = ita - a.begin();
        ll nc = c.end() - itc;
        if(*ita < b0 && b0 < *itc) count += (na + 1) * (nc);
    }
    cout << count << endl;
  	return 0;
}


Compiler output:
a.cc:10:1: error: '::main' must return 'int'
   10 | ll main(){
      | ^~
Language: C++

#define _GLIBCXX_DEBUG
#include <bits/stdc++.h>
using namespace std;
#define REP(i,s,n) for(int i=s; i<(n); ++i)
#define ALL(n) begin(n),end(n)
using ll = long long;
const ll INF = 1e18;
template<class T> inline bool chmin(T& a, T b) { if (a > b) { a = b; return true; } return false; }
template<class T> inline bool chmax(T& a, T b) { if (a < b) { a = b; return true; } return false; }

int main(){
    int N;
    cin >> N;
    vector<int> A(N), B(N), C(N);
    REP(i, 0, N) cin >> A[i];
    REP(i, 0, N) cin >> B[i];
    REP(i, 0, N) cin >> C[i];
    sort(ALL(A));
    sort(ALL(B));
    sort(ALL(C));

    // Cのとりうる範囲内で，ある数以上になっている数の個数をカウントしてvectorに収納
    int C_max = C[C.size() - 1];
    vector<int> C_upper_cnt(C_max + 1);
    REP(i, 0, N){
        chmax(C_upper_cnt[C[i]], N - i);
    }
    ll tmp = 0;
    for (int i = C_max; i >= 0; --i){  // 直接C内になかった値のインデックス部分は0になってるので右側の値で埋めてやる
        if (!chmax(tmp, C_upper_cnt[i])){
            C_upper_cnt[i] = tmp;
        }
    }

    // 各Bの値について，その数以上のBを選択したときのCの候補数の総和
    int B_max = B[B.size() - 1];
    vector<ll> B_upper_cnt(B_max + 1);
    ll C_cnt = 0;
    for (int i = N - 1; i >= 0; --i){
        if (B[i] + 1 > C_max) continue;
        C_cnt += C_upper_cnt[B[i] + 1];  //「以上」から「より大きい」に注意
        B_upper_cnt[B[i]] = C_cnt;
    }
    tmp = 0;
    for (int i = B_max; i >= 0; --i){
        if (!chmax(tmp, B_upper_cnt[i])){
            B_upper_cnt[i] = tmp;
        }
    }

    ll ans = 0;
    REP(i, 0, N){
        if (A[i] + 1 > B_max) break;
        ans += B_upper_cnt[A[i] + 1];  //「以上」から「より大きい」に注意
    }
    cout << ans << endl;

    return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:30:19: error: no matching function for call to 'chmax(ll&, __gnu_cxx::__alloc_traits<std::allocator<int>, int>::value_type&)'
   30 |         if (!chmax(tmp, C_upper_cnt[i])){
      |              ~~~~~^~~~~~~~~~~~~~~~~~~~~
a.cc:9:31: note: candidate: 'template<class T> bool chmax(T&, T)'
    9 | template<class T> inline bool chmax(T& a, T b) { if (a < b) { a = b; return true; } return false; }
      |                               ^~~~~
a.cc:9:31: note:   template argument deduction/substitution failed:
a.cc:30:19: note:   deduced conflicting types for parameter 'T' ('long long int' and 'int')
   30 |         if (!chmax(tmp, C_upper_cnt[i])){
      |              ~~~~~^~~~~~~~~~~~~~~~~~~~~
Language: C++

#include<bits/stdc++.h>
using namespace std;
int binary_search(int a[],int key){
  int left=0;
  int right=n;
  while(left<right){
      int mid=(left+right)/2;
    if(a[mid]==key){
      return 1;
    }
    else if(key<a[mid]){
      right=mid;
    }
    else{
      left=mid+1;
    }
  }return 0;
}

int main(){
  int n;
  cin>>n;
  for(int i=0;i<n;i++) cin>>a[i];
  for(int i=0;i<n;i++) cin>>b[i];
  for(int i=0;i<n;i++) cin>>c[i];
  sort(a,a+n);
  sort(b,b+n);
  sort(c,c+n);
 long long res = 0;
 for (int i = 0; i < N; ++i) {
            long long a = lower_bound(A, A+N, B[i]) - A;
            long long c = upper_bound(C, C+N, B[i]) - C;
            res += a * (N - c);
        }
        cout << res << endl;
    }
}
 

Compiler output:
a.cc: In function 'int binary_search(int*, int)':
a.cc:5:13: error: 'n' was not declared in this scope
    5 |   int right=n;
      |             ^
a.cc: In function 'int main()':
a.cc:23:29: error: 'a' was not declared in this scope
   23 |   for(int i=0;i<n;i++) cin>>a[i];
      |                             ^
a.cc:24:29: error: 'b' was not declared in this scope
   24 |   for(int i=0;i<n;i++) cin>>b[i];
      |                             ^
a.cc:25:29: error: 'c' was not declared in this scope
   25 |   for(int i=0;i<n;i++) cin>>c[i];
      |                             ^
a.cc:26:8: error: 'a' was not declared in this scope
   26 |   sort(a,a+n);
      |        ^
a.cc:27:8: error: 'b' was not declared in this scope
   27 |   sort(b,b+n);
      |        ^
a.cc:28:8: error: 'c' was not declared in this scope
   28 |   sort(c,c+n);
      |        ^
a.cc:30:22: error: 'N' was not declared in this scope
   30 |  for (int i = 0; i < N; ++i) {
      |                      ^
a.cc:31:39: error: 'A' was not declared in this scope
   31 |             long long a = lower_bound(A, A+N, B[i]) - A;
      |                                       ^
a.cc:31:47: error: 'B' was not declared in this scope
   31 |             long long a = lower_bound(A, A+N, B[i]) - A;
      |                                               ^
a.cc:32:39: error: 'C' was not declared in this scope
   32 |             long long c = upper_bound(C, C+N, B[i]) - C;
      |                                       ^
a.cc: At global scope:
a.cc:37:1: error: expected declaration before '}' token
   37 | }
      | ^
Language: C++

#ifdef __GNUC__
#pragma GCC target("avx2")
#pragma GCC optimize ("O25")
#pragma GCC optimize ("tree-vectorize")
#pragma GCC optimize("unroll-loops")
#define iss std::cin
#endif
#include "bits/stdc++.h"
#define rep(i, times) for(ll i = 0; i < (times); ++i)
#define p(x) (cout << (x) << "\n")
using ll = long long; using ld = long double; using namespace std;

#ifndef __GNUC__
string text =
R"X(
6
3 14 159 2 6 53
58 9 79 323 84 6
2643 383 2 79 50 288
)X";
stringstream iss{text};
#endif 

class Festival
{
	ll N{0};
	vector<vector<ll>> A;
	void inp( ) {
		iss >> N; A.resize(3, vector<ll>(N));
		rep(a, 3) {	rep(i, N) { iss >> A[a][i]; };}
		rep(a, 2) { rep(i, N) { sort(begin(A[a+1]), end(A[a+1])); }
	}
	void biSearch( ) {
		ll cnt{0};
		for (auto &a : A[0]) {
			p(a);
			auto itB = upper_bound(begin(A[1]), end(A[1]), a);//a<Bなる最小要素の位置
			for (; itB != end(A[1]); ++itB) {
				auto itC = upper_bound(begin(A[2]), end(A[2]), *itB);//b<Cなる最小要素の位置
				cnt += (end(A[2])- itC);
			}
		}
		p(cnt);
	}
public:
	void procedures( ) {
		inp( );	biSearch( );
	}
};
int main( ) {
	cin.tie(0);	ios::sync_with_stdio(0);
	class Festival a; a.procedures( );
}

Compiler output:
a.cc:53:2: error: expected '}' at end of input
   53 | }
      |  ^
a.cc:25:1: note: to match this '{'
   25 | {
      | ^
a.cc: In member function 'void Festival::inp()':
a.cc:33:26: error: a function-definition is not allowed here before '{' token
   33 |         void biSearch( ) {
      |                          ^
a.cc:45:1: error: expected primary-expression before 'public'
   45 | public:
      | ^~~~~~
a.cc: In member function 'int Festival::main()':
a.cc:52:29: error: 'class Festival' has no member named 'procedures'
   52 |         class Festival a; a.procedures( );
      |                             ^~~~~~~~~~
a.cc:53:1: warning: no return statement in function returning non-void [-Wreturn-type]
   53 | }
      | ^
a.cc: At global scope:
a.cc:53:2: error: expected unqualified-id at end of input
   53 | }
      |  ^
Language: C++

v#include<bits/stdc++.h>
using namespace std;
#define int long long int 
int32_t main()
{
  int n;
  cin>>n;
  int a[n],b[n],c[n];
  for(int i=0;i<n;i++)
  cin>>a[i];
  for(int i=0;i<n;i++)
  cin>>b[i];
  for(int i=0;i<n;i++)
  cin>>c[i];
  sort(a,a+n);
  sort(b,b+n);
  sort(c,c+n);
  // for(auto i:a)
  // cout<<i<<" ";
  // cout<<endl;
  // for(auto i:b)
  // cout<<i<<" ";
  // cout<<endl;
  // for(auto i:c)
  // cout<<i<<" ";
  // cout<<endl;
  int ans=0;
  for(int i=0;i<n;i++)
  {
    int p=(upper_bound(b,b+n,a[i])-b);
    
    for(int j=p;j<n;j++)
    {
     int y=n-(upper_bound(c,c+n,b[j])-c);
     ans+=y;
     
    }
  
  }
  cout<<ans<<endl;
}

Compiler output:
a.cc:1:2: error: stray '#' in program
    1 | v#include<bits/stdc++.h>
      |  ^
a.cc:1:1: error: 'v' does not name a type
    1 | v#include<bits/stdc++.h>
      | ^
a.cc:4:1: error: 'int32_t' does not name a type
    4 | int32_t main()
      | ^~~~~~~
a.cc:1:1: note: 'int32_t' is defined in header '<cstdint>'; this is probably fixable by adding '#include <cstdint>'
  +++ |+#include <cstdint>
    1 | v#include<bits/stdc++.h>