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

#include <iostream>
#include <vector>
#include <algorithm>
#include <set>
#include <numeric>
using namespace std;
set<int> ans;

void CombinationRepetitionUtil(int chosen[], int arr[],
                    int index, int r, int start, int end)
{

    // Since index has become r, current combination is
    // ready to be printed, print
    if (index == r)
    {
        int s = 0;
        for (int i = 0; i < r; i++){
          s += arr[chosen[i]];

        }

        ans.insert(s);
        return;
    }

    // One by one choose all elements (without considering
    // the fact whether element is already chosen or not)
    // and recur
    for (int i = start; i <= end; i++)
    {
        chosen[index] = i;
        CombinationRepetitionUtil(chosen, arr, index + 1,
                                               r, i, end);
    }
}

void CombinationRepetition(int arr[], int n, int r)
{
    // Allocate memory
    int chosen[r+1];

    // Call the recursice function
    CombinationRepetitionUtil(chosen, arr, 0, r, 0, n-1);
}

int main(){
  long long N, A, B;
  vector<long long> v;
  cin >> N >> A >> B;
  if ( (A > B) || (N==1 && A < B) ){
    cout << 0 << endl;
    return 0;
  }

  if ((N==1 && A==B) || N==2){
    cout << 1 << endl;
  }

  N = N-2;
  for(long long i=A;i<=B;i++)
    v.push_back(i);
  CombinationRepetition(&v[0],v.size(),N);
  cout << ans.size() << endl;
  return 0;
  //CombinationRepetitionUtil(&v[0],v.size(),)

}


Compiler output:
a.cc: In function 'int main()':
a.cc:63:25: error: cannot convert '__gnu_cxx::__alloc_traits<std::allocator<long long int>, long long int>::value_type*' {aka 'long long int*'} to 'int*'
   63 |   CombinationRepetition(&v[0],v.size(),N);
a.cc:38:32: note:   initializing argument 1 of 'void CombinationRepetition(int*, int, int)'
   38 | void CombinationRepetition(int arr[], int n, int r)
      |                            ~~~~^~~~~
Language: Java

import java.util.*;
import java.lang.*;
import java.io.*;

public class Main{
	public static void main (String[] args) throws java.lang.Exception{
	    BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
	    char[] building = br.readLine().toCharArray();
	    int sum = 0;
	    int length = building.length;
	    if(length > 5000){}
	    for(int i = 1;i<=length;i++){
	        if(building[i-1] == 'U'){
	            sum += (i - 1) * 2;
	            sum += length - i;
	        }
	        else if(building[i-1] == 'D'){
	            sum += i - 1;
	            sum += (length - i) * 2;
	        }
	    }}
	    else{
	    for(int i = 0;i<length;i++){
	        for(int l = 0;l<length;l++){
	            if(i == l) continue;
	            if((i < l && building[i] == 'D') || (i > l && building[i] == 'U')){
	                sum += 2;
	            }
	            else{
	                sum++;
	            }
	        }
	    }
	    }
	    System.out.println(sum);
	}
	    
}


Compiler output:
Main.java:22: error: illegal start of type
	    else{
	    ^
Main.java:35: error: <identifier> expected
	    System.out.println(sum);
	                      ^
Main.java:35: error: <identifier> expected
	    System.out.println(sum);
	                          ^
Main.java:38: error: class, interface, enum, or record expected
}
^
4 errors
Language: C++

#include<iostream>
using namespace std;
long long n,a,b;
int main()
{
	cin>>n>>a>>b;
	long long mn=a*(n-1)+b,mx=b*(n-1)+a;
	cout<<((a>b||(n==1&&a!=b))?0:mx-mn+1);
return 0；
}

Compiler output:
a.cc: In function 'int main()':
a.cc:9:8: error: unable to find numeric literal operator 'operator""\U0000ff1b'
    9 | return 0；
      |        ^~~
a.cc:9:11: error: expected ';' before '}' token
    9 | return 0；
      |           ^
      |           ;
   10 | }
      | ~
Language: C++

#include<bits/stdc++.h>
using namespace std;
int main(){
	long long int N,A,B;
	cin>>N>>A>>B;
	if(A==B){
		cout<<a<<endl;
		return 0;
	}
	if(A>B){
		cout<<0<<endl;
		return 0;
	}
	if(N==1){
		if(A==B){
			cout<<1<<endl;
		}
		else{
			cout<<0<<endl;
		}
		return 0;
	}
	if(N==2){
		cout<<1<<endl;
		return 0;
	}
	if(N%5!=0){
		cout<<(N-2)*(B-A)+1<<endl;
	}
	else{
		if(B-A<=1)
		cout<<(N-2)*(B-A)+1<<endl;
		else
		cout<<(N-2)*(B-A)<<endl;
	}
}

Compiler output:
a.cc: In function 'int main()':
a.cc:7:23: error: 'a' was not declared in this scope
    7 |                 cout<<a<<endl;
      |                       ^
Language: C++

# include <stdio.h>

long long N, A, B;

int main(void){
    // Here your code !
    scanf("%lld%lld%lld",&N,&A,&B);

    long long D = B - A;

    if (D < 0) {printf("%d\n", 0); return 0;}

    if (D == 0) {
        if (N == 1) printf("%d\n", 1); return 0;
        else {printf("%d\n", 0); return 0;
    }
    else {
        if (N == 1) {printf("%d\n", 0); return 0;}
        printf("%lld\n", (1 + (N - 2) * D));
    }
    return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:15:9: error: expected '}' before 'else'
   15 |         else {printf("%d\n", 0); return 0;
      |         ^~~~
a.cc:13:17: note: to match this '{'
   13 |     if (D == 0) {
      |                 ^
a.cc:17:5: error: 'else' without a previous 'if'
   17 |     else {
      |     ^~~~
Language: Java

import java.util.Scanner;

public class Main {
 public static void main (String[] args) {
  Scanner sc = new Scanner(System.in);
  int n = sc.nextInt();
  int a = sc.nextInt();
  int b = sc.nextInt();
   if(n==0 || a>b){
    System.out.print(0);
   }else if(a<b && n==1){
    System.out.print(0);
   }else if(a==b && n!=1){
    System.out.print(0);
   }else if(a==b && n==1){
    System.out.print(1);
   }else if(n==2){
    System.out.print(1);
   }
  int k = n-2;
  int j = b-a-1;
  int s = j+2;
  for (int i = 0; i < s; i++ ) {
   int r += (s-i);
  }
  int ret = r*k;
 }
}

Compiler output:
Main.java:24: error: ';' expected
   int r += (s-i);
        ^
Main.java:24: error: not a statement
   int r += (s-i);
              ^
Main.java:24: error: ';' expected
   int r += (s-i);
                ^
3 errors
Language: Java

import java.util.Scanner;

/**
 * Created by DELL on 2017/5/27.
 */
public class _1 {
    public static void main(String[] args) {
        Scanner input=new Scanner(System.in);
        int N=input.nextInt();
        int A=input.nextInt();
        int B=input.nextInt();
        if(N<1) System.out.println(0);
        else if((N==1&&(A!=B))||A>B) System.out.println(0);
        else if(A==B) System.out.println(1);
        else System.out.println(B*(N-1)+A-(A*(N-1)+B)+1);




    }
}

Compiler output:
Main.java:6: error: class _1 is public, should be declared in a file named _1.java
public class _1 {
       ^
1 error
Language: C

#include <stdio.h>
int main(void){
    int a,b;
    int n;
    unsigned long long  int ans;
    
    scanf("%d %d %d", &n, &a, &b);
    
    if( a > b) ans = 0;
    if( a =< b) ans = (unsigned long long int)(b-a)*(n-2)+1;
    if( n == 1) ans = 0;
    printf("%llu\n", ans);
    return 0;
}


Compiler output:
main.c: In function 'main':
main.c:10:12: error: expected expression before '<' token
   10 |     if( a =< b) ans = (unsigned long long int)(b-a)*(n-2)+1;
      |            ^
Language: C++

#include <iostream>
using namespace std;

int solve(){
	long n,a,b,cnt;
	long ans=1,cnt=0;
	cin>>n>>a>>b;
	if(b<a){
		ans=0;
	}else if(b>=a&&n<2){
		ans=0;
	}else{
	while(cnt<n-2){
		ans*=(b-a+1);
		cnt++;
	}
	}
	cout<<ans<<endl;
}
int main() {
	solve();
	return 0;
}


Compiler output:
a.cc: In function 'int solve()':
a.cc:6:20: error: redeclaration of 'long int cnt'
    6 |         long ans=1,cnt=0;
      |                    ^~~
a.cc:5:20: note: 'long int cnt' previously declared here
    5 |         long n,a,b,cnt;
      |                    ^~~
a.cc:19:1: warning: no return statement in function returning non-void [-Wreturn-type]
   19 | }
      | ^
Language: C++

#include <stdio.h>
 
int main()
{
     int n, a, b;
     scanf("%d %d %d", &n, &a, &b);
 
     int count = 0;
 
     if(n == 1 && a == b)
     {
          printf("%d\n", 1);
          return 0;
     }
     else if(n == 2 && a =< b)
     {
          printf("%d\n", 2);
          return 0;
     }
     else if(n <= 2)
     {
          printf("%d\n", 0);
          return 0;
     }
 
     printf("%d\n", (b-a+1)*(n-2));
 
     return 0;
}
 


Compiler output:
a.cc: In function 'int main()':
a.cc:15:27: error: expected primary-expression before '<' token
   15 |      else if(n == 2 && a =< b)
      |                           ^
Language: C++

#include <iostream>
using namespace std;

int solve(){
	long n,a,b,cnt;
	long ans=1,cnt=0;
	cin>>n>>a>>b;
	while(cnt<n-2){
		ans*=(b-a+1);
		cnt++;
	}
	cout<<ans<<endl;
}
int main() {
	solve();
	return 0;
}


Compiler output:
a.cc: In function 'int solve()':
a.cc:6:20: error: redeclaration of 'long int cnt'
    6 |         long ans=1,cnt=0;
      |                    ^~~
a.cc:5:20: note: 'long int cnt' previously declared here
    5 |         long n,a,b,cnt;
      |                    ^~~
a.cc:13:1: warning: no return statement in function returning non-void [-Wreturn-type]
   13 | }
      | ^
Language: C++

#include<stdio.h>
#include<vector>
#include<algorithm>
#include<iostream>
#include<stack>
#include<queue>

using namespace std;

int main()
{
	int a,b,c;
	int o=0;
	cin>>a>>b>>c;
	if(b<c)
	cout<<0<<endl;
	vector<int> a;
	for(int i=0;i<a;i++)
	int sup=0;
	for(int u=b;u<c+1;u++)
	sup+=u;
	return 0;
	}


Compiler output:
a.cc: In function 'int main()':
a.cc:17:21: error: conflicting declaration 'std::vector<int> a'
   17 |         vector<int> a;
      |                     ^
a.cc:12:13: note: previous declaration as 'int a'
   12 |         int a,b,c;
      |             ^
a.cc:21:9: error: 'sup' was not declared in this scope
   21 |         sup+=u;
      |         ^~~
Language: C++

#include<stdio.h>
#include<vector>
#include<algorithm>
#include<iostream>
#include<stack>
#include<queue>

using namespace std;

int main()
{
	int a,b,c;
	int o=0;
	cin>>a>>b>>c;
	if(b<c)
	cout<<0<<endl;
	vector<int> a;
	for(int i=0;i<a;i++)
	int sup=0
	for(int u=b;u<c+1;u++)
	sup+=u;
	return 0;
	}


Compiler output:
a.cc: In function 'int main()':
a.cc:17:21: error: conflicting declaration 'std::vector<int> a'
   17 |         vector<int> a;
      |                     ^
a.cc:12:13: note: previous declaration as 'int a'
   12 |         int a,b,c;
      |             ^
a.cc:20:9: error: expected ',' or ';' before 'for'
   20 |         for(int u=b;u<c+1;u++)
      |         ^~~
a.cc:20:21: error: 'u' was not declared in this scope
   20 |         for(int u=b;u<c+1;u++)
      |                     ^
Language: C++

#include<stdio.h>
#include<math.h>
#include<string.h>
#include<algorithm>
#include<stdlib.h>
#include<queue>
#include<iostream>
#include<map>
#include<stack>
using namespace std;

int main()
{
	int N,A,B;
	long long result=0;
	scanf("%d%d%d",&N,&A,&B);
	if(A>B||N<2){printf("%d",result);return;}
	result = pow(N-2,(B-A))+1;
	printf("%lld",result);
}

Compiler output:
a.cc: In function 'int main()':
a.cc:17:42: error: return-statement with no value, in function returning 'int' [-fpermissive]
   17 |         if(A>B||N<2){printf("%d",result);return;}
      |                                          ^~~~~~
Language: C++

#include<stdio.h>
#include<math.h>
#include<string.h>
#include<algorithm>
#include<stdlib.h>
#include<queue>
#include<iostream>
#include<map>
#include<stack>
using namespace std;

int main()
{
	int N,A,B;
	long long result=0;
	scanf("%d%d%d",&N,&A,&B);
	if(A>B||N<2){printf("%d",result);return;}
	result = pow(N-2,(B-A))+1;
	printf("%d",result);
}

Compiler output:
a.cc: In function 'int main()':
a.cc:17:42: error: return-statement with no value, in function returning 'int' [-fpermissive]
   17 |         if(A>B||N<2){printf("%d",result);return;}
      |                                          ^~~~~~
Language: Java

import java.util.Scanner;

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

		
		int N=scan.nextInt();
		int A=scan.nextInt();
		int B=scan.nextInt();
		System.out.println((Math.abs(A-B)+1)*2-1);
		
	}

Compiler output:
Main.java:13: error: reached end of file while parsing
	}
	 ^
1 error
Language: C

#include <stdio.h>

int main()
{
	int a, b, i, n, nr, msum, rsum, m, conbi;
	m=msum=nr=rsum=conbi=0;
	scanf("%d%d%d", &n, &a, &b);
	if(a>b){
		printf("0\n", );
	}else if(n<b-a){
		printf("0\n");
	}else{
		m=(b-a)+1;
		nr=m-(n-2)
		for (i = m; i > nr; i--)
		{
			msum*=i;
		}
		for(i=1;i<=n-2;i++){
			rsum*=i;
		}
		conbi=msum/rsum;
		printf("%d\n", conbi);
	}
	return 0;
}


Compiler output:
main.c: In function 'main':
main.c:9:31: error: expected expression before ')' token
    9 |                 printf("0\n", );
      |                               ^
main.c:14:27: error: expected ';' before 'for'
   14 |                 nr=m-(n-2)
      |                           ^
      |                           ;
   15 |                 for (i = m; i > nr; i--)
      |                 ~~~
Language: Java

import java.util;

public class Main {
 public static vaid main (String[] args) {
  Scanner sc = new Scanner(System.in);
  int n = sc.nextInt();
  int a = sc.nextInt();
  int b = sc.nextInt();
   if(n==0 || a>b){
    System.out.print(0);
   }else if(a<b && n==1){
    System.out.print(0);
   }else if(a==b && n!=1){
    System.out.print(0);
   }else if(a==b && n==1){
    System.out.print(1);
   }
  System.out.print(N+1);
 }
}

Compiler output:
Main.java:1: error: cannot find symbol
import java.util;
           ^
  symbol:   class util
  location: package java
Main.java:4: error: cannot find symbol
 public static vaid main (String[] args) {
               ^
  symbol:   class vaid
  location: class Main
Main.java:5: error: cannot find symbol
  Scanner sc = new Scanner(System.in);
  ^
  symbol:   class Scanner
  location: class Main
Main.java:5: error: cannot find symbol
  Scanner sc = new Scanner(System.in);
                   ^
  symbol:   class Scanner
  location: class Main
Main.java:18: error: cannot find symbol
  System.out.print(N+1);
                   ^
  symbol:   variable N
  location: class Main
5 errors
Language: C++

include <iostream>
using namespace std;

int N, A,B, ans;

void solve(){
    if(N == 1){
        if ( A == B){
            ans = 1;
        }
        else{
            ans = 0;
        }
    }
    else {
       ans = (A - B) * (N-2) + 1;
    }
}

void swapab(){
    int tmp;
    if(A < B){
        tmp = A;
        A = B;
        B = tmp;
    }
}

int main(){
    cin >> N >> A >> B;
    swapab();
    solve();
    printf("%d", ans);
    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:30:5: error: 'cin' was not declared in this scope
   30 |     cin >> N >> A >> B;
      |     ^~~
a.cc:33:5: error: 'printf' was not declared in this scope
   33 |     printf("%d", ans);
      |     ^~~~~~
a.cc:1:1: note: 'printf' is defined in header '<cstdio>'; this is probably fixable by adding '#include <cstdio>'
  +++ |+#include <cstdio>
    1 | include <iostream>
Language: C++

#include <cstdio>
#include <iostream>
using namespace std;
int checkbox[1000000000000];
int count;


int main(){
	for(int i = 0; i < 10000000; i++) checkbox[i] = 0;
	int N, min, max;
	cin >> N >> min >> max;

	if(N == 1 && max - min >=1) {
		cout << 0 << endl;
		return 0;}
	if(min > max) {
		cout << 0 << endl;
		return 0;}
	if(N == 1 && max == min){
		cout << 1 << endl;
		return 0;
	}

	N = N - 2;

	count = count + max * N - min * N + 1;
	

	cout << count << endl;
}

Compiler output:
/tmp/ccXsAvyl.o: in function `main':
a.cc:(.text+0x144): relocation truncated to fit: R_X86_64_PC32 against symbol `count' defined in .bss section in /tmp/ccXsAvyl.o
a.cc:(.text+0x15d): relocation truncated to fit: R_X86_64_PC32 against symbol `count' defined in .bss section in /tmp/ccXsAvyl.o
a.cc:(.text+0x163): relocation truncated to fit: R_X86_64_PC32 against symbol `count' defined in .bss section in /tmp/ccXsAvyl.o
collect2: error: ld returned 1 exit status
Language: Java

mport java.util.*;
public class Main{
	public static void main(String[] args){
		Scanner sc = new Scanner(System.in);
		int N = sc.nextInt();
		int A = sc.nextInt();
		int B = sc.nextInt();
		
		if(B<A){
			System.out.println(0);
		}
		else if(N==1){
			if(B!=A){
				System.out.println(0);
			}
			if(B==A){
				System.out.println(1);
			}
		}
		else{
			System.out.println(B*(N-2)-A*(N-2)+1);
		}
	}
}

Compiler output:
Main.java:1: error: class, interface, enum, or record expected
mport java.util.*;
^
1 error
Language: C

#include <stdio.h>
int main(void){
    int a,b;
    int n;
    long long long int ans;
    
    scanf("%d %d %d", &n, &a, &b);
    
    if( a == b) ans = 1;
    if( a > b) ans = 0;
    if( a < b) ans = (long long long int)(b-a)*(n-2)+1;
    printf("%llld\n", ans);
    return 0;
}

Compiler output:
main.c: In function 'main':
main.c:5:15: error: 'long long long' is too long for GCC
    5 |     long long long int ans;
      |               ^~~~
main.c:11:33: error: 'long long long' is too long for GCC
   11 |     if( a < b) ans = (long long long int)(b-a)*(n-2)+1;
      |                                 ^~~~
Language: C++

#include<iostream>
#include<fstream>
#include<cmath>
#include<string>
#include<set>
#include <map>
#include<vector>
#include <queue>
#include <stack>
#include<algorithm>
using namespace std;
typedef long long ll;
#define f(i, x, n) for(int i = x; i < (int)(n); ++i)
typedef pair<int, int> ii;
const double PI = acos(-1.0);
const ll INF = LLONG_MAX;
const ll F = LLONG_MIN;
const int A = 1234567;


int main() {
	int a, b, c;
	cin >> a >> b >> c;
	if (a == 1)
	{
		if (b == c)
		{
			cout << 1;
		}
		else
		cout << 0;
		return 0;
	}

	if (b > c) { cout << 0; return 0; }

	int f = 2 + (c - b -1);

	//cout << f << endl;
	int p = a - 2;

	cout << p * f - 1;



	return 0;
}

Compiler output:
a.cc:16:16: error: 'LLONG_MAX' was not declared in this scope
   16 | const ll INF = LLONG_MAX;
      |                ^~~~~~~~~
a.cc:11:1: note: 'LLONG_MAX' is defined in header '<climits>'; this is probably fixable by adding '#include <climits>'
   10 | #include<algorithm>
  +++ |+#include <climits>
   11 | using namespace std;
a.cc:17:14: error: 'LLONG_MIN' was not declared in this scope
   17 | const ll F = LLONG_MIN;
      |              ^~~~~~~~~
a.cc:17:14: note: 'LLONG_MIN' is defined in header '<climits>'; this is probably fixable by adding '#include <climits>'
Language: C

#include<stdio.h>
int main(){
int n,a,b;
scanf("%d %d %d",&n,&a,&b);


Compiler output:
main.c: In function 'main':
main.c:4:1: error: expected declaration or statement at end of input
    4 | scanf("%d %d %d",&n,&a,&b);
      | ^~~~~
Language: C++

#include <stdio.h>
int main(){
	scanf("%d%d%d",&n,&A,&B);
	if(A>B){puts("0");return 0;}
	if(n==1){printf("%d\n",A==B);return 0;}
	printf("%lld\n",(B-A)*1ll*n);
}

Compiler output:
a.cc: In function 'int main()':
a.cc:3:25: error: 'n' was not declared in this scope
    3 |         scanf("%d%d%d",&n,&A,&B);
      |                         ^
a.cc:3:28: error: 'A' was not declared in this scope
    3 |         scanf("%d%d%d",&n,&A,&B);
      |                            ^
a.cc:3:31: error: 'B' was not declared in this scope
    3 |         scanf("%d%d%d",&n,&A,&B);
      |                               ^
Language: C++

#include<iostream>
#include<stdint>
using namespace std;
int main() {
	int N, A, B;
	cin >> N >> A >> B;
	if (A > B) cout << 0;
	else if (N == 1 && A < B) cout << 0;
	else cout << (int64_t)
	(B - A) * (N - 2) + 1;
	return 0;
}
/*
A~BまではB-A+1通りの数字がある
N個において、A*(N-1)+BからA+B*(N-1)までの通りがあるので、
A+B*(N-1)-(A*(N-1)+B)+1=B*(N-2)-A*(N-2)+1=(B-A)*(N-2)+1
ただしA>Bなら0
*/

Compiler output:
a.cc:2:9: fatal error: stdint: No such file or directory
    2 | #include<stdint>
      |         ^~~~~~~~
compilation terminated.
Language: C++

#include <cstdio>
#include <iostream>
#include <algorithm>
using namespace std;
typedef long long ll;
ll a,b,n;
int main(){
	cin >> n >> a >> b;
	if (n == 1 && a == b)	cout << 1;
	n -= 2;
	else if (a > b || n < 0)	cout << 0;
	else {
	cout << (b-a)*n+1;
	}
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:11:9: error: 'else' without a previous 'if'
   11 |         else if (a > b || n < 0)        cout << 0;
      |         ^~~~
Language: C++

import java.util.*;

public class Main{
    public static void main(String [] args){
        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        int l = sc.nextInt();
        int r = sc.nextInt();
        int min = (n - 1) * l + r;
        int max = (n - 1) * r + l;
        int ans = max - min + 1;
        if(ans < 0){
            ans = 0;
        }
        System.out.println(ans);
    }
}


Compiler output:
a.cc:1:1: error: 'import' does not name a type
    1 | import java.util.*;
      | ^~~~~~
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 <cstdio>
#include <cstring>
#include <algorithm>
using namespace std;
template<class T> 
inline void read(T& x)
{
	char c = getchar(); T p = 1, n = 0;
	while(c < '0' || c > '9'){if(c == '-') p = -1; c = getchar();}
	while(c >= '0' && c <= '9'){n = n * 10 + c - '0'; c = getchar();}
	x = p * n;
}
template<class T, class U>
inline void read(T& x, U& y){read(x), read(y);}
template<class T, class U, class V>
inline void read(T& x, U& y, V& z){read(x), read(y), read(z);}
int main()
{
	long long n, a, b; read(n, a, b);
	if(a > b)
	{
		puts("0"); return 0;
	}
	if(n == 1 && a != b)
	{
		puts("0"); return 0;
	}
	long long ans = a + b * (n - 1) - b - a * (n - 1) + 1;
	printf("%lld\n", max(ans, 0));
	return 0;	
}

Compiler output:
a.cc: In function 'int main()':
a.cc:29:29: error: no matching function for call to 'max(long long int&, int)'
   29 |         printf("%lld\n", max(ans, 0));
      |                          ~~~^~~~~~~~
In file included from /usr/include/c++/14/algorithm:60,
                 from a.cc:3:
/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:29:29: note:   deduced conflicting types for parameter 'const _Tp' ('long long int' and 'int')
   29 |         printf("%lld\n", max(ans, 0));
      |                          ~~~^~~~~~~~
/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:29:29: note:   mismatched types 'std::initializer_list<_Tp>' and 'long long int'
   29 |         printf("%lld\n", max(ans, 0));
      |                          ~~~^~~~~~~~
Language: C++


#include<iostream>
#include<algorithm>
#include<cstdio>
#include<cmath>
#include<math.h>
#include<string>
#include<string.h>
#include<stack>
#include<queue>
#include<vector>
#include<utility>
#include<set>
#include<map>
#include<stdlib.h>
#include<iomanip>

using namespace std;

#define ll long long
#define ld long double
#define EPS 0.0000000001
#define INF 1e9
#define MOD 1000000007
#define rep(i,n) for(i=0;i<n;i++)
#define loop(i,a,n) for(i=a;i<n;i++)
#define all(in) in.begin(),in.end()
#define shosu(x) fixed<<setprecision(x)
#define int ll
typedef vector<int> vi;
typedef pair<int,int> pii;

signed main(void) {
  int i,j;
  int n,a,b;
  string s;
  cin>>n>>a>>b;
  int ans1=a+b*(n-1);
  int ans2=a*(n-1)+b;
  cout<<max(0,ans1-ans2+1)<<endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:40:12: error: no matching function for call to 'max(int, long long int)'
   40 |   cout<<max(0,ans1-ans2+1)<<endl;
      |         ~~~^~~~~~~~~~~~~~~
In file included from /usr/include/c++/14/string:51,
                 from /usr/include/c++/14/bits/locale_classes.h:40,
                 from /usr/include/c++/14/bits/ios_base.h:41,
                 from /usr/include/c++/14/ios:44,
                 from /usr/include/c++/14/ostream:40,
                 from /usr/include/c++/14/iostream:41,
                 from a.cc:2:
/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:40:12: note:   deduced conflicting types for parameter 'const _Tp' ('int' and 'long long int')
   40 |   cout<<max(0,ans1-ans2+1)<<endl;
      |         ~~~^~~~~~~~~~~~~~~
/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,
                 from a.cc:3:
/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:40:12: note:   mismatched types 'std::initializer_list<_Tp>' and 'int'
   40 |   cout<<max(0,ans1-ans2+1)<<endl;
      |         ~~~^~~~~~~~~~~~~~~
Language: Java

import java.io.IOException;
import java.io.InputStream;
import java.util.NoSuchElementException;

public class Main {
	private static FastScanner sc = new FastScanner();

	public static void main(String[] args) {
		long n = sc.nextInt();
		long a = sc.nextInt();
		long b = sc.nextInt();
		
		if(n == 1) {
			if(a != b) {
				System.out.println(0);
				return;
			} else {
				System.out.println(1);
				return;
			}
		}
		
		long ans = (b-a)*(n-2)+1
		System.out.println(ans);
	}

	static class FastScanner {
	    private final InputStream in = System.in;
	    private final byte[] buffer = new byte[1024];
	    private int ptr = 0;
	    private int buflen = 0;
	    private boolean hasNextByte() {
	        if (ptr < buflen) {
	            return true;
	        }else{
	            ptr = 0;
	            try {
	                buflen = in.read(buffer);
	            } catch (IOException e) {
	                e.printStackTrace();
	            }
	            if (buflen <= 0) {
	                return false;
	            }
	        }
	        return true;
	    }
	    private int readByte() { if (hasNextByte()) return buffer[ptr++]; else return -1;}
	    private static boolean isPrintableChar(int c) { return 33 <= c && c <= 126;}
	    private void skipUnprintable() { while(hasNextByte() && !isPrintableChar(buffer[ptr])) ptr++;}
	    public boolean hasNext() { skipUnprintable(); return hasNextByte();}
	    public String next() {
	        if (!hasNext()) throw new NoSuchElementException();
	        StringBuilder sb = new StringBuilder();
	        int b = readByte();
	        while(isPrintableChar(b)) {
	            sb.appendCodePoint(b);
	            b = readByte();
	        }
	        return sb.toString();
	    }
	    public long nextLong() {
	        return Long.parseLong(next());
	    }
	    public int nextInt(){
	    	return Integer.parseInt(next());
	    }
	}
}


Compiler output:
Main.java:23: error: ';' expected
		long ans = (b-a)*(n-2)+1
		                        ^
1 error
Language: C++

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

int main() {
	int64_t N, A, B;
	std::cin >> N >> A >> B;

	int64_t min = A + B + A * (N - 2);
	int64_t max = A + B + B * (N - 2);

	std::cout << std::max(0LL, max - min + 1)  << std::endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:13:30: error: no matching function for call to 'max(long long int, int64_t)'
   13 |         std::cout << std::max(0LL, max - min + 1)  << std::endl;
      |                      ~~~~~~~~^~~~~~~~~~~~~~~~~~~~
In file included from /usr/include/c++/14/string:51,
                 from /usr/include/c++/14/bits/locale_classes.h:40,
                 from /usr/include/c++/14/bits/ios_base.h:41,
                 from /usr/include/c++/14/ios:44,
                 from /usr/include/c++/14/ostream:40,
                 from /usr/include/c++/14/iostream:41,
                 from a.cc:1:
/usr/include/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:13:30: note:   deduced conflicting types for parameter 'const _Tp' ('long long int' and 'int64_t' {aka 'long int'})
   13 |         std::cout << std::max(0LL, max - min + 1)  << std::endl;
      |                      ~~~~~~~~^~~~~~~~~~~~~~~~~~~~
/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,
                 from a.cc:2:
/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:13:30: note:   mismatched types 'std::initializer_list<_Tp>' and 'long long int'
   13 |         std::cout << std::max(0LL, max - min + 1)  << std::endl;
      |                      ~~~~~~~~^~~~~~~~~~~~~~~~~~~~
Language: C++

#include <iostream>
#include <vector>
#include <algorithm>
#include <map>
#include <queue>
#include <tuple>
#include <cmath>
using namespace std;
typedef pair<int,int> P;
typedef tuple<int,int,int> T;

int main(){
    int64_t N,A,B;
    cin>>N>>A>>B;
    int64_t lo = (N-1)*A+B;
    int64_t up = (N-1)*B+A;
    cout<<max(0LL,up-lo+1)<<endl;
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:17:14: error: no matching function for call to 'max(long long int, int64_t)'
   17 |     cout<<max(0LL,up-lo+1)<<endl;
      |           ~~~^~~~~~~~~~~~~
In file included from /usr/include/c++/14/string:51,
                 from /usr/include/c++/14/bits/locale_classes.h:40,
                 from /usr/include/c++/14/bits/ios_base.h:41,
                 from /usr/include/c++/14/ios:44,
                 from /usr/include/c++/14/ostream:40,
                 from /usr/include/c++/14/iostream:41,
                 from a.cc:1:
/usr/include/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:17:14: note:   deduced conflicting types for parameter 'const _Tp' ('long long int' and 'int64_t' {aka 'long int'})
   17 |     cout<<max(0LL,up-lo+1)<<endl;
      |           ~~~^~~~~~~~~~~~~
/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,
                 from a.cc:3:
/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:17:14: note:   mismatched types 'std::initializer_list<_Tp>' and 'long long int'
   17 |     cout<<max(0LL,up-lo+1)<<endl;
      |           ~~~^~~~~~~~~~~~~
Language: C++

#include<map>
#include<set>
#include<list>
#include<cmath>
#include<queue>
#include<stack>
#include<cstdio>
#include<string>
#include<vector>
#include<complex>
#include<cstdlib>
#include<cstring>
#include<numeric>
#include<sstream>
#include<iostream>
#include<algorithm>
#include<functional>
 
#define mp       make_pair
#define pb       push_back
#define all(x)   (x).begin(),(x).end()
#define YES() printf("YES\n")
#define NO() printf("NO\n")
 
using namespace std;
 
#define int long long
//typedef    long long          ll;
typedef    unsigned long long ull;
typedef    vector<bool>       vb;
typedef    vector<int>        vi;
typedef    vector<vb>         vvb;
typedef    vector<vi>         vvi;
typedef    pair<int,int>      P;
 
const int INF=1e+9;
const double EPS=1e-9;
const int MOD=1000000007;
 
const int dx[]={1,0,-1,0},dy[]={0,-1,0,1};

signed main(){
	int n,a,b,mi,ma;
	cin >> n >> a >> b;
	mi = a * (n - 1) + b;
	ma = b * (n - 1) + a;
	cout << max(0,ma - mi + 1) << endl;
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:47:20: error: no matching function for call to 'max(int, long long int)'
   47 |         cout << max(0,ma - mi + 1) << endl;
      |                 ~~~^~~~~~~~~~~~~~~
In file included from /usr/include/c++/14/bits/stl_tree.h:63,
                 from /usr/include/c++/14/map:62,
                 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:47:20: note:   deduced conflicting types for parameter 'const _Tp' ('int' and 'long long int')
   47 |         cout << max(0,ma - mi + 1) << endl;
      |                 ~~~^~~~~~~~~~~~~~~
/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,
                 from a.cc:16:
/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:47:20: note:   mismatched types 'std::initializer_list<_Tp>' and 'int'
   47 |         cout << max(0,ma - mi + 1) << endl;
      |                 ~~~^~~~~~~~~~~~~~~
Language: C++

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

int main(){
	ios::sync_with_stdio(0);
	cin.tie(0);
	long long n, a, b;
	cin >> n >> a >> b;
	cout << (a + (n-1)*b) - (b + (n-1)*a)) + 1 << endl;

}


Compiler output:
a.cc: In function 'int main()':
a.cc:9:46: error: expected ';' before ')' token
    9 |         cout << (a + (n-1)*b) - (b + (n-1)*a)) + 1 << endl;
      |                                              ^
      |                                              ;
Language: C++

#include <bits/stdc++.h>
using namespace std;
#define int long long
int main() {
  string S;
  cin >> S;
  int N = S.size();
  int ans = (N-1)*(N-1);
  for(int i=0; i<N; i++){
    if(i == 0 || i == N-1){
      continue;
    }
    else if(S[i] == 'U'){
      ans += i;
    }
    else{
      ans += N-1-i;
    }
  }
  cout << ans << endl;
}


Compiler output:
cc1plus: error: '::main' must return 'int'
Language: C++

#include <bits/stdc++.h>
using namespace std;
#define int long long
int main() {
  string S;
  cin >> S;
  int N = S.size();
  int ans = (N-1)*(N-1);
  for(int i=0; i<N; i++){
    if(i == 0 || i == N-1){
      continue;
    }
    else if(S[i] == "U"){
      ans += i;
    }
    else{
      ans += N-1-i;
    }
  }
  cout << ans << endl;
}


Compiler output:
cc1plus: error: '::main' must return 'int'
a.cc: In function 'int main()':
a.cc:13:18: error: ISO C++ forbids comparison between pointer and integer [-fpermissive]
   13 |     else if(S[i] == "U"){
Language: C++

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

const int N=2010;
int sump[N][N],sume1[N][N],sume2[N][N];
bool mp[N][N];

int main()
{
    static char s[N];
    int n,m,q;cin>>n>>m>>q;
    for(int i=1;i<=n;i++)
    {
        scanf("%s",s+1);
        for(int j=1;j<=m;j++)
            mp[i][j]=(s[j]=='1');
    }
    for(int i=1;i<=n;i++)
        for(int j=1;j<=m;j++)
        {
            sump[i][j]=sump[i-1][j]+sump[i][j-1]-sump[i-1][j-1]+mp[i][j];
            sume1[i][j]=sume1[i-1][j]+sume1[i][j-1]-sume1[i-1][j-1]+(mp[i][j]&&mp[i][j+1]);
            sume2[i][j]=sume2[i-1][j]+sume2[i][j-1]-sume2[i-1][j-1]+(mp[i][j]&&mp[i+1][j]);
        }
    while(q--)
    {
        int x1,y1,x2,y2;scanf("%d%d%d%d",&x1,&y1,&x2,&y2);
        int n=sump[x2][y2]-sump[x1-1][y2]-sump[x2][y1-1]+sump[x1-1][y1-1];
        int m=sume1[x2][y2-1]-sume1[x2][y1-1]-sume1[x1-1][y2-1]+sume1[x1-1][y1-1];
        m+=sume2[x2-1][y2]-sume2[x2-1][y1-1]-sume2[x1-1][y2]+sume2[x1-1][y1-1];
        printf("%d\n",n-m);
    }
    flush();
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:33:10: error: no matching function for call to 'flush()'
   33 |     flush();
      |     ~~~~~^~
In file included from /usr/include/c++/14/istream:41,
                 from /usr/include/c++/14/sstream:40,
                 from /usr/include/c++/14/complex:45,
                 from /usr/include/c++/14/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:127,
                 from a.cc:1:
/usr/include/c++/14/ostream:766:5: note: candidate: 'template<class _CharT, class _Traits> std::basic_ostream<_CharT, _Traits>& std::flush(basic_ostream<_CharT, _Traits>&)'
  766 |     flush(basic_ostream<_CharT, _Traits>& __os)
      |     ^~~~~
/usr/include/c++/14/ostream:766:5: note:   candidate expects 1 argument, 0 provided
Language: C++

#include<bits/stdc++.h>
using namespace std;
char S[2020][2020];
int P[2020][2020];
int Q[2020][2020];
int R[2020][2020];
int cj(int T[][2020], int x1, int y1, int x2, int y2){
    return T[x2][y2] - T[x1-1][y2] - T[x2][y1-1] + T[x1-1][y1-1];
}
void ck(int n,int m,int q){
    for(int i=1;i<=n;i++)
        for(int j=1;j<=m;j++) {
            P[i][j] = P[i-1][j] + P[i][j-1] - P[i-1][j-1] + (S[i][j] - '0');
            Q[i][j] = Q[i-1][j] + Q[i][j-1] - Q[i-1][j-1] + (S[i][j] - '0') * (i?(S[i-1][j] - '0'):0);
            R[i][j] = R[i-1][j] + R[i][j-1] - R[i-1][j-1] + (S[i][j] - '0') * (j?(S[i][j-1] - '0'):0);
        }
    for(int i=0;i<q;i++){
        int x1, y1, x2, y2;
        cin>>x1>>y1>>x2>>y2;
        int ans=cj(P, x1, y1, x2, y2);
        ans-=cj(Q, x1+1, y1, x2, y2);
        ans-=cj(R, x1, y1+1, x2, y2);
        cout<<ans;
    }
}

int main(){
    int n,m,q;
    cin>>n>>m>>q;
    for(int i=0;i<n;i++)
        cin>>s[i];
    int Tc = 1;
    for(int i=0;i<Tc;i++){
        ck(n,m,q);
    }
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:31:14: error: 's' was not declared in this scope
   31 |         cin>>s[i];
      |              ^
Language: C++

#include<bits/stdc++.h>
using namespace std;
char S[2020][2020];
int P[2020][2020];
int Q[2020][2020];
int R[2020][2020];
int cj(int T[][2020], int x1, int y1, int x2, int y2){
    return T[x2][y2] - T[x1-1][y2] - T[x2][y1-1] + T[x1-1][y1-1];
}
void ck(){
    for(int i=1;i<=n;i++)
        for(int j=1;j<=m;j++) {
            P[i][j] = P[i-1][j] + P[i][j-1] - P[i-1][j-1] + (S[i][j] - '0');
            Q[i][j] = Q[i-1][j] + Q[i][j-1] - Q[i-1][j-1] + (S[i][j] - '0') * (i?(S[i-1][j] - '0'):0);
            R[i][j] = R[i-1][j] + R[i][j-1] - R[i-1][j-1] + (S[i][j] - '0') * (j?(S[i][j-1] - '0'):0);
        }
    for(int i=0;i<q;i++){
        int x1, y1, x2, y2;
        cin>>x1>>y1>>x2>>y2;
        int ans=cj(P, x1, y1, x2, y2);
        ans-=cj(Q, x1+1, y1, x2, y2);
        ans-=cj(R, x1, y1+1, x2, y2);
        cout<<ans;
    }
}

int main(){
    int n,m,q;
    cin>>n>>m>>q;
    for(int i=0;i<n;i++)
        cin>>s[i];
    int Tc = 1;
    for(int i=0;i<Tc;i++){
        ck();
    }
    return 0;
}

Compiler output:
a.cc: In function 'void ck()':
a.cc:11:20: error: 'n' was not declared in this scope
   11 |     for(int i=1;i<=n;i++)
      |                    ^
a.cc:12:24: error: 'm' was not declared in this scope
   12 |         for(int j=1;j<=m;j++) {
      |                        ^
a.cc:17:19: error: 'q' was not declared in this scope
   17 |     for(int i=0;i<q;i++){
      |                   ^
a.cc: In function 'int main()':
a.cc:31:14: error: 's' was not declared in this scope
   31 |         cin>>s[i];
      |              ^
Language: C++

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

const int MAXN = 2e3 + 10;

vector<string> grid;
int pref1[MAXN][MAXN], pref2[MAXN][MAXN], pref3[MAXN][MAXN];

int main(){

	//freopen("sample_input.txt", "r", stdin);
	//freopen("sample_output.txt", "w", stdout);

	int t = 1;
	//cin>> t;
	while(t--){
		//memset(grid, 0, sizeof grid);
		memset(pref1, 0, sizeof pref1);
		memset(pref2, 0, sizeof pref2);
		memset(pref3, 0, sizeof pref3);
		int n, m, q, ran;
		cin>> n >> m >> q;
		grid.clear();
		/*for(int i = 0; i < n; i++){
			for(int j = 0; j < m; j++){
				string s;
				cin>> s;
				grid.push_back(s);
			}
			//cout<<endl;
		}*/
      	for(int i = 0; i < n; i++){
          string s;
          cin>> s;
          grid.push_back(s);
        }
		for(int i = 0; i < n; i++){
			for(int j = 0; j < m; j++){
				pref1[i+1][j+1] = pref1[i][j+1] + pref1[i+1][j] - pref1[i][j] + (grid[i][j]=='1');
				if(j != m - 1)
					pref2[i+1][j+1] = pref2[i][j+1] + pref2[i+1][j] - pref2[i][j] + (grid[i][j]=='1' and grid[i][j+1]=='1');
				if(i != n - 1)
					pref3[i+1][j+1] = pref3[i][j+1] + pref3[i+1][j] - pref3[i][j] + (grid[i][j]=='1' and grid[i+1][j]=='1');
			}
		}
		//cin>> q >> ran;
		while(q--){
			int x1, y1, x2, y2;
			cin>> x1 >> y1 >> x2 >> y2;
			x1--; y1--;
			int ans = pref1[x2][y2] - pref1[x1][y2] - pref1[x2][y1] + pref1[x1][y1];
			ans -= pref2[x2][y2-1] - pref2[x1][y2 - 1] - pref2[x2][y1] + pref2[x1][y1];
			ans -= pref3[x2-1][y2] - pref3[x1][y2] - pref3[x2 - 1][y1] + pref3[x1][y1];
			//cout<< x1 << ' ' << y1 << ' ' << x2 << ' ' << y2 << ' ' << ans << endl;
			cout<< ans << endl;
		}
	}
}


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

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

const int MAXN = 2e3 + 10;

vector<string> grid;
int pref1[MAXN][MAXN], pref2[MAXN][MAXN], pref3[MAXN][MAXN];

int main(){

	//freopen("sample_input.txt", "r", stdin);
	//freopen("sample_output.txt", "w", stdout);

	int t = 1;
	//cin>> t;
	while(t--){
		//memset(grid, 0, sizeof grid);
		memset(pref1, 0, sizeof pref1);
		memset(pref2, 0, sizeof pref2);
		memset(pref3, 0, sizeof pref3);
		int n, m, q, ran;
		cin>> n >> m >> q;
		grid.clear();
		for(int i = 0; i < n; i++){
			for(int j = 0; j < m; j++){
				string s;
				cin>> s;
				grid.push_back(s);
			}
			//cout<<endl;
		}
		for(int i = 0; i < n; i++){
			for(int j = 0; j < m; j++){
				pref1[i+1][j+1] = pref1[i][j+1] + pref1[i+1][j] - pref1[i][j] + (grid[i][j]=='1');
				if(j != m - 1)
					pref2[i+1][j+1] = pref2[i][j+1] + pref2[i+1][j] - pref2[i][j] + (grid[i][j]=='1' and grid[i][j+1]=='1');
				if(i != n - 1)
					pref3[i+1][j+1] = pref3[i][j+1] + pref3[i+1][j] - pref3[i][j] + (grid[i][j]=='1' and grid[i+1][j]=='1');
			}
		}
		//cin>> q >> ran;
		while(q--){
			int x1, y1, x2, y2;
			cin>> x1 >> y1 >> x2 >> y2;
			x1--; y1--;
			int ans = pref1[x2][y2] - pref1[x1][y2] - pref1[x2][y1] + pref1[x1][y1];
			ans -= pref2[x2][y2-1] - pref2[x1][y2 - 1] - pref2[x2][y1] + pref2[x1][y1];
			ans -= pref3[x2-1][y2] - pref3[x1][y2] - pref3[x2 - 1][y1] + pref3[x1][y1];
			//cout<< x1 << ' ' << y1 << ' ' << x2 << ' ' << y2 << ' ' << ans << endl;
			cout<< ans << endl;
		}
	}
}

Compiler output:
a.cc: In function 'int main()':
a.cc:19:17: error: 'memset' was not declared in this scope
   19 |                 memset(pref1, 0, sizeof pref1);
      |                 ^~~~~~
a.cc:3:1: note: 'memset' is defined in header '<cstring>'; this is probably fixable by adding '#include <cstring>'
    2 | #include <iostream>
  +++ |+#include <cstring>
    3 | using namespace std;
Language: C++

#include <bits/stdc++.h>
#define FI first
#define SE second
#define PB push_back
#define ll long long
#define FOR(i,a,b) for(int i=a;i<b;i++)
#define ROF(i,a,b) for(int i=b-1;i>=a;i--)
#define YES(i) cout<<(i?"YES":"NO")<<endl
#define Yes(i) cout<<(i?"Yes":"No")<<endl
#define co(i) cout<<(i)<<endl
#define fcout cout<<fixed<<setprecision(10)
#define uni(i) i.erase(unique(i.begin(), i.end()), i.end());
#define all(i) i.begin(),i.end()
#define pint pair<int, int>
#define vint vector<int>
using namespace std;

const int INF=1e9+7;
const ll LINF=1e18;
const int MOD=1e9+7;
//const int MOD=998244353;

int b[2002][2002];
int tate[2002][2002];
int yoko[2002][2002];
int main(){
	int n,m,q; cin>>n>>m>>q;
	FOR(i,0,n)FOR(j,0,m){
		char c; cin>>c;
		b[i+1][j+1]=c-'0';
	}

	FOR(i,1,n)FOR(j,0,m){
		tate[i][j]=(b[i][j+1]==1&&b[i+1][j+1]==1);
	}
	FOR(i,0,n)FOR(j,1,m){
		yoko[i][j]=(b[i+1][j]==1&&b[i+1][j+1]==1);
	}
	FOR(i,1,n)FOR(j,0,m){
		tate[i][j]+=tate[i-1][j];
		yoko[i][j]+=yoko[i-1][j];
	}
	FOR(i,0,n)FOR(j,1,m){
		tate[i][j]+=tate[i][j-1];
		yoko[i][j]+=yoko[i][j-1];
	}
	FOR(i,1,n+1)FOR(j,0,m+1){
		b[i][j]+=b[i-1][j];
	}
	FOR(i,0,n+1)FOR(j,1,m+1){
		b[i][j]+=b[i][j+1];
	}
	
	while(q--){
		int x1,y1,x2,y2;
		cin>>x1>>y1>>x2>>y2;
		int blue=b[x2][y2]-b[x1-1][y2]-b[x2][y1-1]+b[x1-1][y1-1];
		int edge=
	}
}


Compiler output:
a.cc: In function 'int main()':
a.cc:59:9: error: expected primary-expression before '}' token
   59 |         }
      |         ^