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

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

int main(void){
    int a, b, c, d;
    scanf("%d %d %d %d", &a, &b, &c, &d);
    
    if (c > a){
        if (b > c){
            if (b > d){
                printf("%d\n", c - d);
            }else{
                printf("%d\n", d - c);
            }
        }else{
            printf("0\n");
        }
    }else if(a > c){
        if (d > a){
            if (d > b){
                printf("%d", a - b);
            }else[
                printf("%d", a - d);
            ]
        }else{
            printf("0\n");
        }
    }

    return 0;
}

Compiler output:
main.c: In function 'main':
main.c:23:18: error: expected expression before '[' token
   23 |             }else[
      |                  ^
main.c:24:36: error: expected ']' before ';' token
   24 |                 printf("%d", a - d);
      |                                    ^
      |                                    ]
main.c:25:14: error: expected ';' before '}' token
   25 |             ]
      |              ^
      |              ;
   26 |         }else{
      |         ~
Language: C

#include<stdio.h>
int main(){
    int A,B,C,D;
    scanf("%d %d %d %d",&A,&B,&C,&D);
    if(B=<C||D=<A){
        printf("0");    //ok
    }else if(A=<C){
        if(D=<B){
            printf("%d",D-C);
        }else{
            printf("%d",B-C);
        }
    }else if(C<A){
        if(B=<D){
            printf("%d",B-A);
        }else{
            printf("%d",D-A);
        }
    }
    return 0;
}

Compiler output:
main.c: In function 'main':
main.c:5:10: error: expected expression before '<' token
    5 |     if(B=<C||D=<A){
      |          ^
main.c:7:16: error: expected expression before '<' token
    7 |     }else if(A=<C){
      |                ^
main.c:8:14: error: expected expression before '<' token
    8 |         if(D=<B){
      |              ^
main.c:14:14: error: expected expression before '<' token
   14 |         if(B=<D){
      |              ^
Language: C

#include<stdio.h>
int main(){
    int A,B,C,D;
    scanf("%d %d %d %d",&A,&B,&C,&D);
    if(B=<C||D=<A){
        printf("0");
    }else if(A=<C){
        printf("%d",D-C);
    }else if(C<A){
        printf("%d",B-A);
    }
    return 0;
}

Compiler output:
main.c: In function 'main':
main.c:5:10: error: expected expression before '<' token
    5 |     if(B=<C||D=<A){
      |          ^
main.c:7:16: error: expected expression before '<' token
    7 |     }else if(A=<C){
      |                ^
Language: C++

#include <iostream>
using namespace std;
int main()
{
    int a,b,c,d;
    cin>>a>>b>>c>>d;
    if(b<c||d<a)
    {
        cout<<0;
        return 0;
    }
    if(a<=c&&b>=10d)
    {
        cout<<d-c;
        return 0;
    }
    if(c<=a&&d>=b)
    {
        cout<<b-a;
        return 0;
    }
    if(c<b)
    {
        cout<<b-c;
        return 0;
    }
    if(a<d)
    {
        cout<<d-a;
        return 0;
    }
    return 0;

}


Compiler output:
a.cc: In function 'int main()':
a.cc:12:17: error: unable to find numeric literal operator 'operator""d'
   12 |     if(a<=c&&b>=10d)
      |                 ^~~
Language: C++

#include <bits/stdc++.h>
using namespace std;
int main()
{
    int a,b,c,d;
    cin>>a>>b>>c>>d;
    if(b<c||d<a)
    {
        cout<<0;
        return 0;
    }
    if(a<=c&&b>=10d)
    {
        cout<<d-c;
        return 0;
    }
    if(c<=a&&d>=b)
    {
        cout<<b-a;
        return 0;
    }
    if(c<b)
    {
        cout<<b-c;
        return 0;
    }
    if(a<d)
    {
        cout<<d-a;
        return 0;
    }
    return 0;

}


Compiler output:
a.cc: In function 'int main()':
a.cc:12:17: error: unable to find numeric literal operator 'operator""d'
   12 |     if(a<=c&&b>=10d)
      |                 ^~~
Language: C++

    #include<iostream>
    #include<string>
    using namespace std;
     
    int main(){
        int a,b,c,d,t;
        cin >> a >> b >>c >> d;
        t = min(c,d)　- max(a,b);
        if(t<0){t = 0;}
        cout << t << endl;
         
        return 0;
    }

Compiler output:
a.cc:8:21: error: extended character 　 is not valid in an identifier
    8 |         t = min(c,d)　- max(a,b);
      |                     ^
a.cc: In function 'int main()':
a.cc:8:21: error: expected ';' before '\U00003000'
    8 |         t = min(c,d)　- max(a,b);
      |                     ^~
      |                     ;
Language: C++

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

Compiler output:
a.cc: In function 'int main()':
a.cc:6:14: error: expected primary-expression before '<' token
    6 |         if(b=<c) printf("0\n");
      |              ^
Language: C++

#include <iostream>
using namespace std;
 
int main()
{
int x,y;
int a,b,c,d;
cin >> a >> b >> c >> d;
if(a<b && c<d) {
	if(c < b)
		{if(c > a){x=c;}
		else {x=a;}}
		if(d > b) {y=b;}
		else {y=d;}
cout<<y-x<<endl;

else {cout<<0<<endl;}
}
 
return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:17:1: error: expected '}' before 'else'
   17 | else {cout<<0<<endl;}
      | ^~~~
a.cc:9:16: note: to match this '{'
    9 | if(a<b && c<d) {
      |                ^
a.cc: At global scope:
a.cc:20:1: error: expected unqualified-id before 'return'
   20 | return 0;
      | ^~~~~~
a.cc:21:1: error: expected declaration before '}' token
   21 | }
      | ^
Language: C

#include<stdio.h>
int main(void){
    int a,b,c,d;
    int min,max;
    scanf("%d %d %d %d",&a,&b,&c,&d);
    min=c;
    max=d;
    if(a>c)min=a;
    if(b<d)max=b;
    ans=max-min;
    if(ans>=0){
        printf("%d\n",ans);
    }else{
        printf("0\n");
    }
    return 0;
}

Compiler output:
main.c: In function 'main':
main.c:10:5: error: 'ans' undeclared (first use in this function)
   10 |     ans=max-min;
      |     ^~~
main.c:10:5: note: each undeclared identifier is reported only once for each function it appears in
Language: C

#include<stdio.h>
int main(void){
    int a,b,c,d;
    int min,max;
    scanf("%d %d %d %d",&a,&b,&c,&d);
    min=c;
    max=d;
    if(a>c)min=a;
    if(b<d)max=b;
    ans=max-min;
    if(ans>=0){
        printf("%d\n",ans);
    }else{
        printf("0\n")
    }
    return 0;
}

Compiler output:
main.c: In function 'main':
main.c:10:5: error: 'ans' undeclared (first use in this function)
   10 |     ans=max-min;
      |     ^~~
main.c:10:5: note: each undeclared identifier is reported only once for each function it appears in
main.c:14:22: error: expected ';' before '}' token
   14 |         printf("0\n")
      |                      ^
      |                      ;
   15 |     }
      |     ~
Language: C

#include <stdio.h>
#include <math.h>

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

    printf("%d", (int)(fmax(fmax(a,c)-fmin(b,d),0)));
}

Compiler output:
main.c: In function 'main':
main.c:5:11: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'b'
    5 |     int a b c d;
      |           ^
main.c:5:11: error: unknown type name 'b'
main.c:5:15: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'd'
    5 |     int a b c d;
      |               ^
main.c:6:27: error: 'a' undeclared (first use in this function)
    6 |     scanf("%d %d %d %d", &a, &b, &c, &d);
      |                           ^
main.c:6:27: note: each undeclared identifier is reported only once for each function it appears in
main.c:6:31: error: 'b' undeclared (first use in this function)
    6 |     scanf("%d %d %d %d", &a, &b, &c, &d);
      |                               ^
main.c:6:35: error: 'c' undeclared (first use in this function)
    6 |     scanf("%d %d %d %d", &a, &b, &c, &d);
      |                                   ^
main.c:6:39: error: 'd' undeclared (first use in this function)
    6 |     scanf("%d %d %d %d", &a, &b, &c, &d);
      |                                       ^
Language: Java

import java.io.BufferedReader;
import java.io.InputStreamReader;
 
public class Main {
    public static void main(String[] args) throws Exception {
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
        String line = br.readLine();
		String[] number = line.sprit(" ");
		int a = Integer.parseInt(number[0]);
		int b = Integer.parseInt(number[1]);
		int c = Integer.parseInt(number[2]);
		int d = Integer.parseInt(number[3]);
		int r = 0;
		if(a < c) {
			if(c < b) {
				r = b - c;
				System.out.println(r);
			} else if(b < c) {
				System.out.println(r);
			}
		} else if(c < a) {
			if(a < d) {
				r = d - a;
				System.out.println(r);
			} else if(d < a) {
				System.out.println(r);
			}
		}
	}
}

Compiler output:
Main.java:8: error: cannot find symbol
		String[] number = line.sprit(" ");
		                      ^
  symbol:   method sprit(String)
  location: variable line of type String
1 error
Language: C

#include <iostream>
using namespace std;
int main (void) {
    int A, B, C, D, s_in, s_out ;

    cin >> A >> B >> C >> D;

    if (A < C) s_in = C;
    else s_in = A;

    if (B < D) s_out = B;
    else s_out = D;
    if (s_in < s_out){
        cout << (s_out - s_in) << "\n";
    } else {
        cout << 0 << "\n";
    }
    return 0;
}


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

#include<bits/stdc++.h>

using namespace std;

int main(){
	int a,b,c,d;
  cin>>a>>b>>c>>d;
   	int ans = max((min(b,d) - max(a,c) , 0);
    cout<<ans<<endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:8:48: error: expected ')' before ';' token
    8 |         int ans = max((min(b,d) - max(a,c) , 0);
      |                      ~                         ^
      |                                                )
Language: C++

#include<bits/stdc++.h>

using namespace std;

int main(){
	int a,b,c,d;
  cin>>a>>b>>c>>d;
   	cout<<max((min(b,d) - max(a,c) , 0)<<endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:8:44: error: invalid operands of types 'int' and '<unresolved overloaded function type>' to binary 'operator<<'
    8 |         cout<<max((min(b,d) - max(a,c) , 0)<<endl;
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~
Language: C

#include<stdio.h>
int main()
{
    int a,b,c,d,p,sum,q;
    scanf("%d%d%d%d",&a,&b,&c,&d);
    if(b<c||d<a)
    {
        sum=0;
    }
    else
    {
       if(b>d)
        p=d
        else 
        p=b;
        if(a>c)
            q=a;
        else
            q=c;
            
        sum=p-q;
       
    }
    printf("%d\n",sum);
    return 0;
}

Compiler output:
main.c: In function 'main':
main.c:13:12: error: expected ';' before 'else'
   13 |         p=d
      |            ^
      |            ;
   14 |         else
      |         ~~~~
Language: C++

#include <iostream>
#include <cstdio>
#include <algorithm>
#include <cstring>
using namespace std;
int A, B, C, D;
int main() {
	while (scanf("%d %d %d %d", &A, &B, &C, &D) != EOF) {
		int ans = 0;
		if (B <= C || A >= D) {
			ans = 0;
		}
		else if (A <= C && B >= D || A > C && B < D) {
			ans = abs(D - C);
		}
		1  8   4 5   4  5   1    8
		else if (A < C && B < D || A > C && B > D) {
			ans = abs(C - B);
		}
		else if (A == C && B == D) {
			ans = D - C + 1;
		}
		printf("%d\n", ans);
	} 
}

Compiler output:
a.cc: In function 'int main()':
a.cc:16:18: error: expected ';' before numeric constant
   16 |                 1  8   4 5   4  5   1    8
      |                  ^ ~
      |                  ;
a.cc:20:17: error: 'else' without a previous 'if'
   20 |                 else if (A == C && B == D) {
      |                 ^~~~
Language: C++

#include <iostream>
#include <algorithm>

int main()
{
  int a, b, c, d;
  std::cin >> a >> b >> c >> d;
  int firstPoint = std::min(b, d)
    int secondPoint = std::max(a, c)
    
    std::cout << std::max(0, firstPoint - secondPoint);
}

Compiler output:
a.cc: In function 'int main()':
a.cc:9:5: error: expected ',' or ';' before 'int'
    9 |     int secondPoint = std::max(a, c)
      |     ^~~
Language: C++

#include <iostream>
#include <vector>
#include <algorithm>
#include <functional>
#include <cmath>

#define reps(i,s,n) for(int (i) = (s); (i) < (n); (i)++)
#define rep(i,n) reps(i,0,n)
using namespace std;
using ll = long long;

int main(){
    int a,b,c,d;
    cin >> a >> b >> c >> d;
    if((d<=a  )|| (c>=b ) cout  << 0 << endl;
    else if((a>=c&&b>=d&&d>=a)||(b>=d && d>= a && a >= c))   cout<< d-a<<endl;
    else if(a<=c&&b>=d)   cout <<  d-c<<endl;
    else if((d>=b&&a<=c&&b>=c)||(d<=c && c <= b && b <= d))   cout << b-c << endl;
    else if(d >= b && a >= c) cout << b-a << endl;
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:15:26: error: expected ';' before 'cout'
   15 |     if((d<=a  )|| (c>=b ) cout  << 0 << endl;
      |                          ^~~~~
      |                          ;
a.cc:16:5: error: expected primary-expression before 'else'
   16 |     else if((a>=c&&b>=d&&d>=a)||(b>=d && d>= a && a >= c))   cout<< d-a<<endl;
      |     ^~~~
a.cc:15:46: error: expected ')' before 'else'
   15 |     if((d<=a  )|| (c>=b ) cout  << 0 << endl;
      |       ~                                      ^
      |                                              )
   16 |     else if((a>=c&&b>=d&&d>=a)||(b>=d && d>= a && a >= c))   cout<< d-a<<endl;
      |     ~~~~
Language: C++

int main()
{
    int ans, a, b, c, d;
    std::cin >> a >> b >> c >> d;
    if(c >= b || a >= d){
        ans = 0;
    }else if(a <= c && b <= d){
        ans = b - c;
    }else if(b <= d){
        ans = b - a;
    }else if(a <= d){
        ans = d - a;
    }else{ans = d - c}
    std::cout << ans << std::endl;
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:4:10: error: 'cin' is not a member of 'std'
    4 |     std::cin >> a >> b >> c >> d;
      |          ^~~
a.cc:1:1: note: 'std::cin' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
  +++ |+#include <iostream>
    1 | int main()
a.cc:13:22: error: expected ';' before '}' token
   13 |     }else{ans = d - c}
      |                      ^
      |                      ;
a.cc:14:10: error: 'cout' is not a member of 'std'
   14 |     std::cout << ans << std::endl;
      |          ^~~~
a.cc:14:10: note: 'std::cout' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
a.cc:14:30: error: 'endl' is not a member of 'std'
   14 |     std::cout << ans << std::endl;
      |                              ^~~~
a.cc:1:1: note: 'std::endl' is defined in header '<ostream>'; this is probably fixable by adding '#include <ostream>'
  +++ |+#include <ostream>
    1 | int main()
Language: C

#include <stdio.h>
 
int main(void) {
    int a,b,c,d,e,f,g;
    scanf("%d%d%d%d",&a,&b,&c,&d);
    if(a < c){
        f = c;
    } else {
        f = a;
    }
    if(b < d){
        g = b;
    } else { 
        g = d;
    e = g - f; 
    if(e < 0){
        e = 0;
    }
    printf("%d\n",e);
	return 0;
}

Compiler output:
main.c: In function 'main':
main.c:21:1: error: expected declaration or statement at end of input
   21 | }
      | ^
Language: C++

#include <iostream>
using namespace std;

int main(){
	int a, b, c, d;
	cin >> a >> b >> c >> d;
	int fullLength = d - a;
	int aLength = b - a;
	int bLength = d - c;

	if (B > d)
	{
		cout << bLength << endl;
	}
	else if (c > b)
	{
		cout << 0 << endl;
	}

	cout << fullLength - aLength - bLength << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:11:13: error: 'B' was not declared in this scope
   11 |         if (B > d)
      |             ^
Language: C

#include<stdio.h>
int main()
{
    int a,b,c,d;
    scanf("%d%d%d%d",&a,&b,&c,&d);
    if(b<=c || (a>=c && b>=d)
    {
        printf("0\n");
    }
    else if(b>c)
    {
        int max=a,min=b;
        if(max<=c)
        {
            max=c;
        }
        if(min>=d)
        {
            min=d;
        }
        printf("%d\n",min-max);
    }
    return 0;
}


Compiler output:
main.c: In function 'main':
main.c:6:30: error: expected ')' before '{' token
    6 |     if(b<=c || (a>=c && b>=d)
      |       ~                      ^
      |                              )
    7 |     {
      |     ~                         
main.c:24:1: error: expected expression before '}' token
   24 | }
      | ^
Language: C

#include<stdio.h>
int main()
{
    int a,b,c,d;
    scanf("%d%d%d%d",&a,&b,&c,&d);
    if(b<=c || a>=c)
    {
        printf("0\n");
    }
    else if(b>c && )
    {
        int max=a,min=b;
        if(max<=c)
        {
            max=c;
        }
        if(min>=d)
        {
            min=d;
        }
        printf("%d\n",min-max);
    }
    return 0;
}


Compiler output:
main.c: In function 'main':
main.c:10:20: error: expected expression before ')' token
   10 |     else if(b>c && )
      |                    ^
main.c:13:12: error: 'max' undeclared (first use in this function)
   13 |         if(max<=c)
      |            ^~~
main.c:13:12: note: each undeclared identifier is reported only once for each function it appears in
main.c:17:12: error: 'min' undeclared (first use in this function); did you mean 'main'?
   17 |         if(min>=d)
      |            ^~~
      |            main
Language: C++

#include <vector>
#include <algorithm>
#include <functional>
#include <cmath>

#define reps(i,s,n) for(int (i) = (s); (i) < (n); (i)++)
#define rep(i,n) reps(i,0,n)
using namespace std;
using ll = long long;

int main(){
    int a,b,c,d;
    cin >> a >> b >> c >> d;
    if((d<=a  )|| (c>=b )) cout  << 0 << endl;
    else if(a>=c&&b>=d&&d>=a)   cout<< d-a<<endl;
    else if(a<=c&&b>=d)   cout <<  d-c<<endl;
    else if(d>=b&&a<=c&&b>=c)   cout << b-c << 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 >> a >> b >> c >> d;
      |     ^~~
a.cc:5:1: note: 'std::cin' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
    4 | #include <cmath>
  +++ |+#include <iostream>
    5 | 
a.cc:14:28: error: 'cout' was not declared in this scope
   14 |     if((d<=a  )|| (c>=b )) cout  << 0 << endl;
      |                            ^~~~
a.cc:14:28: note: 'std::cout' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
a.cc:14:42: error: 'endl' was not declared in this scope
   14 |     if((d<=a  )|| (c>=b )) cout  << 0 << endl;
      |                                          ^~~~
a.cc:5:1: note: 'std::endl' is defined in header '<ostream>'; this is probably fixable by adding '#include <ostream>'
    4 | #include <cmath>
  +++ |+#include <ostream>
    5 | 
a.cc:15:33: error: 'cout' was not declared in this scope
   15 |     else if(a>=c&&b>=d&&d>=a)   cout<< d-a<<endl;
      |                                 ^~~~
a.cc:15:33: note: 'std::cout' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
a.cc:15:45: error: 'endl' was not declared in this scope
   15 |     else if(a>=c&&b>=d&&d>=a)   cout<< d-a<<endl;
      |                                             ^~~~
a.cc:15:45: note: 'std::endl' is defined in header '<ostream>'; this is probably fixable by adding '#include <ostream>'
a.cc:16:27: error: 'cout' was not declared in this scope
   16 |     else if(a<=c&&b>=d)   cout <<  d-c<<endl;
      |                           ^~~~
a.cc:16:27: note: 'std::cout' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
a.cc:16:41: error: 'endl' was not declared in this scope
   16 |     else if(a<=c&&b>=d)   cout <<  d-c<<endl;
      |                                         ^~~~
a.cc:16:41: note: 'std::endl' is defined in header '<ostream>'; this is probably fixable by adding '#include <ostream>'
a.cc:17:33: error: 'cout' was not declared in this scope
   17 |     else if(d>=b&&a<=c&&b>=c)   cout << b-c << endl;
      |                                 ^~~~
a.cc:17:33: note: 'std::cout' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
a.cc:17:48: error: 'endl' was not declared in this scope
   17 |     else if(d>=b&&a<=c&&b>=c)   cout << b-c << endl;
      |                                                ^~~~
a.cc:17:48: note: 'std::endl' is defined in header '<ostream>'; this is probably fixable by adding '#include <ostream>'
Language: C++

#include <bits/stdc++.h>

using namespace std;

int main() {
 	cin >> a >> b >> c >> d;
  	a = max(a,c);
	b = min(b,d);
  	cout << max(0,b-a+1);
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:6:16: error: 'a' was not declared in this scope
    6 |         cin >> a >> b >> c >> d;
      |                ^
a.cc:6:21: error: 'b' was not declared in this scope
    6 |         cin >> a >> b >> c >> d;
      |                     ^
a.cc:6:26: error: 'c' was not declared in this scope
    6 |         cin >> a >> b >> c >> d;
      |                          ^
a.cc:6:31: error: 'd' was not declared in this scope
    6 |         cin >> a >> b >> c >> d;
      |                               ^
Language: C

#include <stdio.h>

int main(void) {
    int a,b,c,d,e;
    scanf("%d %d %d %d",&a &b &c &d);
    e = b - c - a;
    if(e < 0){
        e = 0;
    }
    printf("%d\n",e);
	return 0;
}

Compiler output:
main.c: In function 'main':
main.c:5:28: error: invalid operands to binary & (have 'int *' and 'int')
    5 |     scanf("%d %d %d %d",&a &b &c &d);
      |                         ~~ ^
      |                         |
      |                         int *
Language: C

#include <stdio.h>

int main(void) {
    int a,b,c,d,e;
    scanf("%d%d%d%d",&a&b&c&d);
    e = b - c - a;
    if(e < 0){
        e = 0;
    }
    printf("%d\n",e);
	return 0;
}

Compiler output:
main.c: In function 'main':
main.c:5:24: error: invalid operands to binary & (have 'int *' and 'int')
    5 |     scanf("%d%d%d%d",&a&b&c&d);
      |                      ~~^
      |                      |
      |                      int *
Language: C++

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

int main(){
bool v[100];
for(int i=0;i<100;i++) v[i]=true;

int a,b,c,d;
int count=0;
cin>>a>>b>>c>>d;
for(int i=a;i<=b;i++){
for(int j=c;j<=d;j++){
if(i==j){
count++;
}
}
}
cout<<count<<endl;
}

}

  }

Compiler output:
a.cc:22:1: error: expected declaration before '}' token
   22 | }
      | ^
a.cc:24:3: error: expected declaration before '}' token
   24 |   }
      |   ^
Language: C++

#include <iostream>
using namespace std;
int main() {
	int a, b, c, d;
	cin >> a >> b >> c >> d;
	int time;
	if(b<c || d<a){
		time = 0;
	}
	if(b==c || )
	if(a<=c && c<=b && b<=d){
		time = b-c;
	}
	if(c<=a && a<=d && d<=b){
		time = d-a;
	}
	if(a<=c && d<=b){
		time = d-c;
	}
	if(c<a && b<d){
		time = b-a;
	}
	cout << time << endl;
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:10:20: error: expected primary-expression before ')' token
   10 |         if(b==c || )
      |                    ^
Language: C++

#include<cstdio>
int a,b,c;
int main()
{
	scanf("%d%d%d%d",&a,&b,&c,&d);
	if (b>a+c)printf("%d",min(d,b-a-c));
	else printf("0");
}

Compiler output:
a.cc: In function 'int main()':
a.cc:5:36: error: 'd' was not declared in this scope
    5 |         scanf("%d%d%d%d",&a,&b,&c,&d);
      |                                    ^
a.cc:6:31: error: 'min' was not declared in this scope; did you mean 'main'?
    6 |         if (b>a+c)printf("%d",min(d,b-a-c));
      |                               ^~~
      |                               main
Language: C++

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

int main(){
bool v[100];
for(int i=0;i<100;i++) v[i]=true;

int a,b,c,d;
int count=0;
cin>>a>>b>>c>>d;
for(int i=a;i<=b;i++){
for(int j=c;j<=d;j++){
if(i==j){
count++;
}

cour<<count<<endl;
}

}

  }

Compiler output:
a.cc: In function 'int main()':
a.cc:18:1: error: 'cour' was not declared in this scope
   18 | cour<<count<<endl;
      | ^~~~
Language: C++

#include<iostream>
#inlcude<cstring>
using namespace std;
int main()
{
	int A,B,C,D,sum=0;
	int a[100]={0};
	cin>>A>>B>>C>>D;
		for(int i=0;i<=110;i++)
		{
			if(i>=A&&i<B)
			a[i]++;
			if(i>=C&&i<D)
			a[i]++;
		}
		for(int i=0;i<=110;i++)
		{
			if(a[i]==2)
			sum++;
		}
		cout<<sum<<endl;

}

Compiler output:
a.cc:2:2: error: invalid preprocessing directive #inlcude; did you mean #include?
    2 | #inlcude<cstring>
      |  ^~~~~~~
      |  include
Language: C++

#include<iostream>
#inlcude<cstring>
using namespace std;
int main()
{
	int A,B,C,D,sum=0;
	int a[100]={0};
	while(cin>>A>>B>>C>>D)
	{
		memset(a,0,sizeof(a));
		sum=0;
		for(int i=0;i<=110;i++)
		{
			if(i>=A&&i<B)
			a[i]++;
			if(i>=C&&i<D)
			a[i]++;
		}
		for(int i=0;i<=110;i++)
		{
			if(a[i]==2)
			sum++;
		}
		cout<<sum<<endl;
	}
	
}

Compiler output:
a.cc:2:2: error: invalid preprocessing directive #inlcude; did you mean #include?
    2 | #inlcude<cstring>
      |  ^~~~~~~
      |  include
a.cc: In function 'int main()':
a.cc:10:17: error: 'memset' was not declared in this scope
   10 |                 memset(a,0,sizeof(a));
      |                 ^~~~~~
a.cc:2:1: note: 'memset' is defined in header '<cstring>'; this is probably fixable by adding '#include <cstring>'
    1 | #include<iostream>
  +++ |+#include <cstring>
    2 | #inlcude<cstring>
Language: C++

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

int main()
{
	ios::sync_with_stdio(false); 
	int a,b,c,d;
	while(cin>>a>>b>>c>>d)
	{
		int ans ;
		if(a<=c&&b>=d)
		{
			ans = d-c;
		}
		else if(a>=c&&b<=d)
		{
			ans = b-a;
		}
		else if(b<d)
		{
			ans = b-c;
		}
		else
		{
			ans = d-a;
		}
		ans = (abs)ans;
		cout<<ans<<endl; 
	}
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:27:27: error: cannot resolve overloaded function 'abs' based on conversion to type 'int'
   27 |                 ans = (abs)ans;
      |                           ^
Language: C++

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

Compiler output:
a.cc:1:17: warning: extra tokens at end of #include directive
    1 | #include<cstdio>#include<cstdio>
      |                 ^
a.cc:26:2: error: expected unqualified-id before '>' token
   26 | }>
      |  ^
Language: Java

import java.util.*;
impiort java.io.*;
class test
{
public static void main(String[] args)
{
Scanner sc=new Scanner(System.in);
int a=sc.nextInt();
int b=sc.nextInt();
int c=sc.nextInt();
int d=sc.nextInt();
int min=Math.min(a,c);
int max=Math.max(b,d);
int ans=max-min;
if(ans<0)
{
System.out.println("0");
}
else
System.out.println(ans);
sc.close();
}
}

Compiler output:
Main.java:2: error: class, interface, enum, or record expected
impiort java.io.*;
^
1 error
Language: C++


#include<iostream>
using namespace std;
int main(){
  int,a,b,c,d;
  cin>>a>>b>>c>>d;
  int ans=0;
  int flag=0;
  if(a>b)
    flag=a;
  else
    flag=b;
  if(c>d)
    ans=d-flag;
  else
    ans=c-flag;
  cout<<ans<<endl;
  return 0;
}
  

Compiler output:
a.cc: In function 'int main()':
a.cc:5:6: error: expected unqualified-id before ',' token
    5 |   int,a,b,c,d;
      |      ^
Language: C++

#include<iostream>
using namespace std;
int main(){
  int,a,b,c,d;
  cin>>a>>b>>c>>d;
  int ans=0;
  int flag=0;
  if(a>b)
    flag=a;
  else
    flag=b;
  if(c>d)
    ans=d-flag;
  else
    ans=c-flag;
  return 0;
}
  

Compiler output:
a.cc: In function 'int main()':
a.cc:4:6: error: expected unqualified-id before ',' token
    4 |   int,a,b,c,d;
      |      ^
Language: Java

import java.util.Scanner;

public class Main {

public static void main(String[] args) {

 Scanner in = new Scanner(System.in);
 int A = in.nextInt();
 int B = in.nextInt();
 int C = in.nextInt();
 int D = in.nextInt();

 int start = Math.max(A, C);
 int end = Math.min(B, D);

 if((A <= start)&&(start <= B)&&(C <= start)&&(start <= D)&&(A <= end)&&(end <= B)&&(C <= end)&&(end <= D)){
    System.out.println(end - start);
 }
 else{
	 System.out.println("0");
 }

 in.close();

Compiler output:
Main.java:23: error: reached end of file while parsing
 in.close();
            ^
1 error
Language: C++

#include <bits/stdc++.h>

using namespace std;

int main(){
cin.sync_with_stdio(0); cin.tie(0);
int a, b, c, d;
cin >> a >> b >> c >> d;
int maxbeg = max(a, c);
int mined = min(b, d);
	int ans = max(0, mined - maxbeg);
	cout << ed;
return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:12:17: error: 'ed' was not declared in this scope; did you mean 'd'?
   12 |         cout << ed;
      |                 ^~
      |                 d
Language: C++

//  problem
//  Created by 聂小楠 on 2017/8/12.
//  All rights reserved.
 
#include<bits/stdc++.h>
#include<cstdio>
#include<iostream>
#include<algorithm>
#include<cstring>
#include<queue>
#include<vector>
#include<functional>
#define endl '\n'
#define ll long long
#define pii pair<int,int>
#define MAX_N 1000
#define Mem(a,b) memset(a,b,sizeof(a))
#define FREI freopen("in.txt","r",stdin)
#define FREO freopen("out.txt","w",stdout)
#define INF  2147483647
using namespace std;
const ll mod =1e9+7;
int a[105];
int ans[105][105];
int main()
{
    std::ios::sync_with_stdio(false);
   int a,b,c,d;
   cin>>a>>b>>c>>d;
   int ans=0;
   if(a<=c&&b>=d)
    ans=d-c;
   if(a<=c&&b=<d)
    ans=b-c;
   if(a>=c&&b>=d)
    ans=d-a;
   if(a>=c&&b=<d)
    ans=b-a;
   if(ans<0)
    ans=0;
   cout<<ans<<endl;
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:33:15: error: expected primary-expression before '<' token
   33 |    if(a<=c&&b=<d)
      |               ^
a.cc:37:15: error: expected primary-expression before '<' token
   37 |    if(a>=c&&b=<d)
      |               ^
Language: C++

/**
*
* Author: Mouhanad
* Lang: GNU C++14
*
**/
#include<bits/stdc++.h>
using namespace std;

#define F first
#define S second
#define ii pair < int , int >
#define LS pair < ll , string >
typedef long long ll;
const int inf = 1<<30;
const int N =100100;
int n , a[N] , q ;

int main ( ){
 int a , b , c , d ;
 cin >> a >> b >> c >> d ;
 if ( c > b || a > d ) cout <<0;
 else if ( a >= c && b <= d ) cout <<  b - a;
 else if (  c >= a && d <= b) cout << d - c
 cout << min(b,d) - max(a,c);

return 0 ;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:24:44: error: expected ';' before 'cout'
   24 |  else if (  c >= a && d <= b) cout << d - c
      |                                            ^
      |                                            ;
   25 |  cout << min(b,d) - max(a,c);
      |  ~~~~
Language: C++

#include<iostream>
#include<cstdio>
#include<cstring>
#include<algorithm>
#include<cstdlib>
#include<ctime>
#include<queue>
using namespace std;
int a,b,c,d;
int tot;
int main()
{
	cin>>a>>b>>c>>d;
	for(int i=0;i<=101;i++)
	{
		if(i>=a&&i<=b&&i>=c&&i<=d)tot++;
	}
	cout<<max(tot-1,0)2;
	return 0;
 }


Compiler output:
a.cc: In function 'int main()':
a.cc:18:27: error: expected ';' before numeric constant
   18 |         cout<<max(tot-1,0)2;
      |                           ^
      |                           ;
Language: C++

#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef pair<int,int> pii;
#define RI(a) scanf("%d",&a)
#define RII(a,b) scanf("%d%d",&a,&b)
#define RIII(a,b,c) scanf("%d%d%d",&a,&b,&c)
#define IOS ios_base::sync_with_stdio(0); cin.tie(0)
#define ALL(a) a.begin(),a.end()
#define F first
#define S second
#define REP(i,n) for(int i=0;i<(n);i++)
#define pb push_back
#ifdef leowang
#define debug(...) do{\
	fprintf(stderr,"%s - %d : (%s) = ",__PRETTY_FUNCTION__,__LINE__,#__VA_ARGS__);\
	_DO(__VA_ARGS__);\
}while(0)
template<typename I> void _DO(I&&x){cerr<<x<<endl;}
template<typename I,typename...T> void _DO(I&&x,T&&...tail){cerr<<x<<", ";_DO(tail...);}
#else
#define debug(...)
#endif
//}}}
const ll maxn=100005;
const ll maxlg=__lg(maxn)+2;
const ll INF64=8000000000000000000LL;
const int INF=2000000000;
 
int main()
{
	int a,b,c,d;
	cin>>a>>b>>c>>d;
	cout<<max(0,min(b,d)-max(a,c));
	return 0;
}

Compiler output:
a.cc:29:1: error: extended character   is not valid in an identifier
   29 |  
      | ^
a.cc:29:1: error: '\U000000a0' does not name a type
   29 |  
      | ^
Language: C++

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

using namespace std;

int main()
{
    int a, b, c, d;
    cin >> a >> b >> c >> d;

    int ans = min(b, d) - max(a, c)aa#include <iostream>
#include <string>
#include <algorithm>

using namespace std;

int main()
{
    int a, b, c, d;
    cin >> a >> b >> c >> d;

    int ans = min(b, d) - max(a, c);

    cout << (ans > 0 ? ans : 0) << endl;

    return 0;
}
;

    cout << (ans > 0 ? ans : 0) << endl;

    return 0;
}


Compiler output:
a.cc:12:38: error: stray '#' in program
   12 |     int ans = min(b, d) - max(a, c)aa#include <iostream>
      |                                      ^
a.cc: In function 'int main()':
a.cc:12:36: error: expected ',' or ';' before 'aa'
   12 |     int ans = min(b, d) - max(a, c)aa#include <iostream>
      |                                    ^~
a.cc:18:9: warning: empty parentheses were disambiguated as a function declaration [-Wvexing-parse]
   18 | int main()
      |         ^~
a.cc:18:9: note: remove parentheses to default-initialize a variable
   18 | int main()
      |         ^~
      |         --
a.cc:18:9: note: or replace parentheses with braces to value-initialize a variable
a.cc:19:1: error: a function-definition is not allowed here before '{' token
   19 | {
      | ^
Language: C++

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

using namespace std;

int main()
{
    int a, b, c, d;
    cin >> a >> b >> c >> d;

    int ans = min(b, d) - max(a, c)a;

    cout << (ans > 0 ? ans : 0) << endl;

    return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:12:36: error: expected ',' or ';' before 'a'
   12 |     int ans = min(b, d) - max(a, c)a;
      |                                    ^
Language: C++

#include <bits/stdc++.h>
using namespace std;
typedef int64_t ll;
struct Solution {
    void solve(std::istream& in, std::ostream& out) {
        ll A, B, C, D;
        in >> A >> B >> C >> D;
        out << max(0LL, min(D, B) - max(C, A)) << endl;
    }
};
void solve(std::istream& in, std::ostream& out) {
    out << std::setprecision(12);
    Solution solution;
    solution.solve(in, out);
}
#include <fstream>
#include <iostream>
int main() {
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    istream& in = cin;
    ostream& out = cout;
    solve(in, out);
    return 0;
}


Compiler output:
a.cc: In member function 'void Solution::solve(std::istream&, std::ostream&)':
a.cc:8:19: error: no matching function for call to 'max(long long int, long int)'
    8 |         out << max(0LL, min(D, B) - max(C, A)) << endl;
      |                ~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~
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:8:19: note:   deduced conflicting types for parameter 'const _Tp' ('long long int' and 'long int')
    8 |         out << max(0LL, min(D, B) - max(C, A)) << 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:
/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:8:19: note:   mismatched types 'std::initializer_list<_Tp>' and 'long long int'
    8 |         out << max(0LL, min(D, B) - max(C, A)) << endl;
      |                ~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~
Language: C++

#include <bits/stdc++.h>

using namespace std;

#define rep2(x,fr,to) for(int (x)=(fr);(x)<(to);(x)++)
#define rep(x,to) for(int (x)=0;(x)<(to);(x)++)
#define repr(x,fr,to) for(int (x)=(fr);(x)>=(to);(x)--)
#define all(c) (c).begin(),(c).end()
#define sz(v) (int)(v).size()

typedef int64_t ll; typedef vector<int> VI; typedef pair<int,int> pii;
const ll mod = 1e9+7;

	bool chpal(string s){
		int n=sz(s);
		rep(i,n/2) if(s[i]!=s[n-1-i]) return false;
		return true;
	}

int main()
{
	
	//cin.tie(0); ios_base::sync_with_stdio(false);
	int a,b,c,d;
	cin >>a >>b >>c >>d;
	
	int mn = max(a,c);
	int mx = min(b,d);
	cout<< max(0,mx-mn) <<"\n";
	return 0;
}
#include <bits/stdc++.h>

using namespace std;

#define rep2(x,fr,to) for(int (x)=(fr);(x)<(to);(x)++)
#define rep(x,to) for(int (x)=0;(x)<(to);(x)++)
#define repr(x,fr,to) for(int (x)=(fr);(x)>=(to);(x)--)
#define all(c) (c).begin(),(c).end()
#define sz(v) (int)(v).size()

typedef int64_t ll; typedef vector<int> VI; typedef pair<int,int> pii;
const ll mod = 1e9+7;

	bool chpal(string s){
		int n=sz(s);
		rep(i,n/2) if(s[i]!=s[n-1-i]) return false;
		return true;
	}

int main()
{
	
	//cin.tie(0); ios_base::sync_with_stdio(false);
	int a,b,c,d;
	cin >>a >>b >>c >>d;
	
	int mn = max(a,c);
	int mx = min(b,d);
	cout<< max(0,mx-mn) <<"\n";
	return 0;
}


Compiler output:
a.cc:43:10: error: redefinition of 'const ll mod'
   43 | const ll mod = 1e9+7;
      |          ^~~
a.cc:12:10: note: 'const ll mod' previously defined here
   12 | const ll mod = 1e9+7;
      |          ^~~
a.cc:45:14: error: redefinition of 'bool chpal(std::string)'
   45 |         bool chpal(string s){
      |              ^~~~~
a.cc:14:14: note: 'bool chpal(std::string)' previously defined here
   14 |         bool chpal(string s){
      |              ^~~~~
a.cc:51:5: error: redefinition of 'int main()'
   51 | int main()
      |     ^~~~
a.cc:20:5: note: 'int main()' previously defined here
   20 | int main()
      |     ^~~~
Language: C++

#include<string>
#include<deque>
#include<queue>
#include<vector>
#include<algorithm>
#include<iostream>
#include<set>
#include<cmath>
#include<tuple>
#include<chrono>
#include<functional>
#include<iterator>
#include<random>
#include<unordered_set>
#include<array>
#include<map>
using namespace std;
typedef long long int llint;
#define mp make_pair
#define mt make_tuple
#define pub push_back
#define puf push_front
#define pob pop_back
#define pof pop_front
#define fir first
#define sec second
#define res resize
#define ins insert
#define era erase
const int mod=1000000007;
const llint big=1e18+10;
const long double pai=3.141592653589793238462643383279502884197;
const long double eps=1e-9;
template <class T,class U>void mineq(T& a,U b){if(a>b){a=b;}}
template <class T,class U>void maxeq(T& a,U b){if(a<b){a=b;}}
llint gcd(llint a,llint b){if(a%b==0){return b;}else return gcd(b,a%b);}
llint lcm(llint a,llint b){return a/gcd(a,b)*b;}
int main(void){
	llint a,b,c,d;
	cin>>a>>b>>c>>d;
	cout<<max(min(c,d)-min(a,b),0)<<endl;
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:41:18: error: no matching function for call to 'max(long long int, int)'
   41 |         cout<<max(min(c,d)-min(a,b),0)<<endl;
      |               ~~~^~~~~~~~~~~~~~~~~~~~~
In file included from /usr/include/c++/14/string: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:41:18: note:   deduced conflicting types for parameter 'const _Tp' ('long long int' and 'int')
   41 |         cout<<max(min(c,d)-min(a,b),0)<<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:5:
/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:41:18: note:   mismatched types 'std::initializer_list<_Tp>' and 'long long int'
   41 |         cout<<max(min(c,d)-min(a,b),0)<<endl;
      |               ~~~^~~~~~~~~~~~~~~~~~~~~
Language: Java

package main.tasks;

import lib.io.MyInput;
import java.io.PrintWriter;

public class TaskB {
    public void solve(int testNumber, MyInput in, PrintWriter out) {
        int a = in.nextInt();
        int b = in.nextInt();
        int c = in.nextInt();
        int d = in.nextInt();
        int x = Math.max(Math.min(b,d)-Math.max(a,b), 0);
        out.println(x);
    }
}


Compiler output:
Main.java:6: error: class TaskB is public, should be declared in a file named TaskB.java
public class TaskB {
       ^
Main.java:3: error: package lib.io does not exist
import lib.io.MyInput;
             ^
Main.java:7: error: cannot find symbol
    public void solve(int testNumber, MyInput in, PrintWriter out) {
                                      ^
  symbol:   class MyInput
  location: class TaskB
3 errors
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")
#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 a,b,c,d,ans;
	cin >> a >> b >> c >> d;
	ans = min(c,d) - max(a,b);
	cout << max(ans,0) << endl;
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:48:20: error: no matching function for call to 'max(long long int&, int)'
   48 |         cout << max(ans,0) << 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:48:20: note:   deduced conflicting types for parameter 'const _Tp' ('long long int' and 'int')
   48 |         cout << max(ans,0) << 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:48:20: note:   mismatched types 'std::initializer_list<_Tp>' and 'long long int'
   48 |         cout << max(ans,0) << endl;
      |                 ~~~^~~~~~~
Language: C++

#include <bits/stddc++.h>
using namespace std;
signed gcd(long long x, long long y) {
    if (y == 0)return x;
    return gcd(y, x % y);
}
signed lcm(long long x, long long y) {
    return x / gcd(x, y) * y;
}
int main(){
  long long N;
  long long ans=0;
  for(int i=0;i<N;i++){
    long long a;cin>>a;
    ans=lcm(a,ans);
  }
  cout<<ans<<endl;
}

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

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

ll gcd(ll a, ll b) {
  if(b = 0) return a;
  else return gcd(a, a%b);
}

ll lcm(ll a, ll b){
  if(b > a) swap(a,b);
  ll g = gcd(a, b);
  return a * b / g;
}
void solve(){
  int n; cin >> n;
  ll t[n];
  ll ans = 1;
  for(int i == 0; i < n; ++i) {
    cin >> t[i];
    ans = lcm(ans, t[i]);
  }
  cout << ans << endl;
}

int main(){
  solve();
  return 0;
}


Compiler output:
a.cc: In function 'void solve()':
a.cc:19:12: error: expected ';' before '==' token
   19 |   for(int i == 0; i < n; ++i) {
      |            ^~~
      |            ;
a.cc:19:13: error: expected primary-expression before '==' token
   19 |   for(int i == 0; i < n; ++i) {
      |             ^~
a.cc:19:24: error: expected ')' before ';' token
   19 |   for(int i == 0; i < n; ++i) {
      |      ~                 ^
      |                        )
a.cc:19:28: error: 'i' was not declared in this scope
   19 |   for(int i == 0; i < n; ++i) {
      |                            ^
Language: C++

#include <bits/stdc++.h>
using namespace std
#define ll long long

ll gcd(ll a, ll b) {
  if(b = 0) return a;
  else return gcd(a, a%b);
}

ll lcm(ll a, ll b){
  if(b > a) swap(a,b);
  ll g = gcd(a, b);
  return a * b / g;
}
void solve(){
  int n; cin >> n;
  ll t[n];
  ll ans = 1;
  for(int i = 0; i < n; ++i) {
    cin >> t[i];
    ans = lcm(ans, t[i]);
  }
  cout << ans << endl;
}

int main(){
  solve();
  return 0;
}

Compiler output:
a.cc:2:20: error: expected ';' before 'long'
    2 | using namespace std
      |                    ^
      |                    ;