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

#include<iostream>
#include<vector>
#include<string>
#include<algorithm>
#include<cmath>
#include<cstdlib>
#include<tuple>
#include<iomanip>
#include<map>
#define int long long
using namespace std;

signed main() {
	int A,B,C,D;
	cin >> A >> B >> C >> D;
	int upper = max(A,C);
	int lower = min(B,D);
	cout << max(0,upper - lower) << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:18:20: error: no matching function for call to 'max(int, long long int)'
   18 |         cout << max(0,upper - lower) << 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:18:20: note:   deduced conflicting types for parameter 'const _Tp' ('int' and 'long long int')
   18 |         cout << max(0,upper - lower) << 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:4:
/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:18:20: note:   mismatched types 'std::initializer_list<_Tp>' and 'int'
   18 |         cout << max(0,upper - lower) << endl;
      |                 ~~~^~~~~~~~~~~~~~~~~
Language: C++

#include<iostream>
using namespace std;
int a,b,c,d;
int main(){
while(cin>>a>>b>>c>>d){
  int ans=0;
  for(int i=0;i<=100; i++){
      if(i>=a && i<=b) && (i>=c && i<=d) ans++; 
}
printf("%d\n",ans-1>=0 ; ans-1:0);
}
 retuen 0;
     
}


Compiler output:
a.cc: In function 'int main()':
a.cc:8:27: error: expected identifier before '(' token
    8 |       if(i>=a && i<=b) && (i>=c && i<=d) ans++;
      |                           ^
a.cc:10:23: error: expected ')' before ';' token
   10 | printf("%d\n",ans-1>=0 ; ans-1:0);
      |       ~               ^~
      |                       )
a.cc:10:31: error: expected ';' before ':' token
   10 | printf("%d\n",ans-1>=0 ; ans-1:0);
      |                               ^
      |                               ;
a.cc:12:2: error: 'retuen' was not declared in this scope
   12 |  retuen 0;
      |  ^~~~~~
Language: C++

#include<iostream>
#include<stdio.h>
using namespace std;
int main(){
	int a,b,c,d,t;
	scanf("%d %d %d %d",&a,&b,&c,&d);
	if(b>c)
	{
		if((c<a)&&(d<a))
		t=0;
		else if((c>a)&&(d<a))
		t=d-a;
		else if(d>b)
		{
			if(a>c)
			t=b-a;
			else if(a<=c)
			t=b-c;
			
		}
		
		
		 else	if(a>c){
		 
			
			t=b-a;
			else if(a<=c)
			t=b-c;}
		
		else if(d<b)
		{
			if(a>=c)
			t=d-a;
			
		}
	}
	else
	t=0;
	printf("%d",t);
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:27:25: error: expected '}' before 'else'
   27 |                         else if(a<=c)
      |                         ^~~~
a.cc:23:32: note: to match this '{'
   23 |                  else   if(a>c){
      |                                ^
a.cc: At global scope:
a.cc:37:9: error: expected unqualified-id before 'else'
   37 |         else
      |         ^~~~
a.cc:39:15: error: expected constructor, destructor, or type conversion before '(' token
   39 |         printf("%d",t);
      |               ^
a.cc:40:9: error: expected unqualified-id before 'return'
   40 |         return 0;
      |         ^~~~~~
a.cc:41:1: error: expected declaration before '}' token
   41 | }
      | ^
Language: C++

#include<iostream>
#include<stdio.h>
using namespace std;
int main(){
	int a,b,c,d,t;
	scanf("%d %d %d %d",&a,&b,&c,&d);
	if(b>c)
	{
		if((c<a)&&(d<a))
		t=0;
		else if((c>a)&&(d<a))
		t=d-a;
		else if(d>b)
		{
			if(a>c)
			t=b-a;
			else if(a<=c)
			t=b-c;
			
		}
		
		
		 else	if(a>c)
			
			t=b-a;
			else if(a<=c)
			t=b-c;}
		
		else if(d<b)
		{
			if(a>=c)
			t=d-a;
			
		}
	}
	else
	t=0;
	printf("%d",t);
	return 0;
}

Compiler output:
a.cc:36:9: error: expected unqualified-id before 'else'
   36 |         else
      |         ^~~~
a.cc:38:15: error: expected constructor, destructor, or type conversion before '(' token
   38 |         printf("%d",t);
      |               ^
a.cc:39:9: error: expected unqualified-id before 'return'
   39 |         return 0;
      |         ^~~~~~
a.cc:40:1: error: expected declaration before '}' token
   40 | }
      | ^
Language: C++

#include<iostream>
#include<stdio.h>
using namespace std;
int main(){
	int a,b,c,d,t;
	scanf("%d %d %d %d",&a,&b,&c,&d);
	if(b>c)
	{
		if((c>a)&&(d<a))
		t=0;
		else if((c>a)&&(d<a))
		t=d-a;
		else if(d>b)
		{
			if(a>c)
			t=b-a;
			else if(a<=c)
			t=b-c;
			
		}
		
			if(a>c){
			
			t=b-a;
			else if(a<=c)
			t=b-c;
		}
		else if(d<b)
		{
			if(a>=c)
			t=d-a;
			
		}
	}
	else
	t=0;
	printf("%d",t);
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:25:25: error: expected '}' before 'else'
   25 |                         else if(a<=c)
      |                         ^~~~
a.cc:22:32: note: to match this '{'
   22 |                         if(a>c){
      |                                ^
a.cc: At global scope:
a.cc:35:9: error: expected unqualified-id before 'else'
   35 |         else
      |         ^~~~
a.cc:37:15: error: expected constructor, destructor, or type conversion before '(' token
   37 |         printf("%d",t);
      |               ^
a.cc:38:9: error: expected unqualified-id before 'return'
   38 |         return 0;
      |         ^~~~~~
a.cc:39:1: error: expected declaration before '}' token
   39 | }
      | ^
Language: C++

#include <iostream>

using namespace std;

int main(){

    int a, b, c, d, s, s2;
    cin >> a >> b >> c >> d;

    if(a > c){

        s = (b - c);

        if(s > 0){
            s2 = (b - d);
            if(s2 > 0){
                s = (s - s2);
                cout << s << endl;
            }
            else{
                cout << s << endl;
            }
        }
        else{
            cout << "0" << endl;
        }

    else{
        s = (c - b);
        if(s > 0){
            s2 = (d - b);
            if(s2 > 0){
                s = (s - s2);
                cout << s << endl;
            }
            else{
                cout << s << endl;
            }
        }
        else{
            cout << "0" << endl;
        }
    }

Compiler output:
a.cc: In function 'int main()':
a.cc:28:5: error: expected '}' before 'else'
   28 |     else{
      |     ^~~~
a.cc:10:14: note: to match this '{'
   10 |     if(a > c){
      |              ^
a.cc:43:6: error: expected '}' at end of input
   43 |     }
      |      ^
a.cc:5:11: note: to match this '{'
    5 | int main(){
      |           ^
Language: C++

int a,b,c,d;
    int main()
    {
        while(cin>>a>>b>>c>>d)
        {
            int ans=0;
            for(int i=0;i<=100;i++)
            {
                if((i>=a && i<=b) && (i>=c && i<=d))ans++;
            }
            printf("%d\n",ans-1>=0?ans-1:0);
        }
        return 0;
    }

Compiler output:
a.cc: In function 'int main()':
a.cc:4:15: error: 'cin' was not declared in this scope
    4 |         while(cin>>a>>b>>c>>d)
      |               ^~~
a.cc:11:13: error: 'printf' was not declared in this scope
   11 |             printf("%d\n",ans-1>=0?ans-1:0);
      |             ^~~~~~
a.cc:1:1: note: 'printf' is defined in header '<cstdio>'; this is probably fixable by adding '#include <cstdio>'
  +++ |+#include <cstdio>
    1 | 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 x=max(a,c);
	int y=min(b,d);
	if(y-x>=0){
        cout<<y-x<<endl;
	}
	else
	cout<<0<<endl;
	
}

Compiler output:
a.cc: In function 'int main()':
a.cc:6:19: error: 'a' was not declared in this scope
    6 |         int x=max(a,c);
      |                   ^
a.cc:6:21: error: 'c' was not declared in this scope
    6 |         int x=max(a,c);
      |                     ^
a.cc:7:19: error: 'b' was not declared in this scope
    7 |         int y=min(b,d);
      |                   ^
a.cc:7:21: error: 'd' was not declared in this scope
    7 |         int y=min(b,d);
      |                     ^
Language: C++

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

		else if(c>b)
		cout<<"0";
		
}

Compiler output:
a.cc: In function 'int main()':
a.cc:14:29: error: 'cc' was not declared in this scope; did you mean 'c'?
   14 |                 else if (a==cc&&d==b)
      |                             ^~
      |                             c
Language: C++

#include<bits/stdc++.h> 
using namespace std;
int main(){
	int A,B,C,D;
	int x,y;
	cin>>A>>B>>C>>D;
	if(C>B)
	cout<<"0\n";
	if(C<B){
		y=max(A,c);
		x=min(B,D);
		cout<<x-y<<endl;
	}
	
	
}

Compiler output:
a.cc: In function 'int main()':
a.cc:10:25: error: 'c' was not declared in this scope
   10 |                 y=max(A,c);
      |                         ^
Language: C++

#include <iostream>
using namespace std;
int a,b,c,d;
    int main()
    {
    	
       cin>>a>>b>>c>>d;
  

	cout<<max(0,min(b,d)-max(a,c))<<endl;

Compiler output:
a.cc: In function 'int main()':
a.cc:10:46: error: expected '}' at end of input
   10 |         cout<<max(0,min(b,d)-max(a,c))<<endl;
      |                                              ^
a.cc:5:5: note: to match this '{'
    5 |     {
      |     ^
Language: C++

#include <bits/stdc++.h>
using namespace std;
int a,b,c,d;
    int main()
    {
    	
       scanf("%d %d %d %d",&a,&b,&c,&d);
  

	cout<<max(0,min(b,d)-max(a,c))<<endl;

Compiler output:
a.cc: In function 'int main()':
a.cc:10:46: error: expected '}' at end of input
   10 |         cout<<max(0,min(b,d)-max(a,c))<<endl;
      |                                              ^
a.cc:5:5: note: to match this '{'
    5 |     {
      |     ^
Language: C++

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

	else 
		cout<<"0";
		
}

Compiler output:
a.cc: In function 'int main()':
a.cc:10:26: error: expected primary-expression before '<' token
   10 |         else if (a>=c&&d=<b)
      |                          ^
Language: C++

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

return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:12:10: error: 's' was not declared in this scope
   12 | {cout<<d-s;}
      |          ^
Language: C++

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

Compiler output:
a.cc:8:1: error: expected unqualified-id before 'if'
    8 | if(b-a>c-a)
      | ^~
a.cc:10:1: error: expected unqualified-id before 'return'
   10 | return 0;
      | ^~~~~~
a.cc:11:1: error: expected declaration before '}' token
   11 | }
      | ^
Language: C++

#include <iostream>
using namespace std;
int main()
{
	int a , b , c , d ,c=0;
	cin>>a>>b>>c>>d;
	for(int i=0;i<=100;i++)
	{
		if( a<i && b>=i && c<i && d>=i)
		{
			c++;
		}
	}
	cout<<c;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:5:28: error: redeclaration of 'int c'
    5 |         int a , b , c , d ,c=0;
      |                            ^
a.cc:5:21: note: 'int c' previously declared here
    5 |         int a , b , c , d ,c=0;
      |                     ^
Language: C++


int A,B,C,D;
int x=0;
int y=0;
cin>>A>>B>>C>>D;
 if(C<B ){
x=B-C;

}
if(D<B){
y=B-D;	
}
cout<<x-y;
}

Compiler output:
a.cc:5:1: error: 'cin' does not name a type
    5 | cin>>A>>B>>C>>D;
      | ^~~
a.cc:6:2: error: expected unqualified-id before 'if'
    6 |  if(C<B ){
      |  ^~
a.cc:10:1: error: expected unqualified-id before 'if'
   10 | if(D<B){
      | ^~
a.cc:13:1: error: 'cout' does not name a type
   13 | cout<<x-y;
      | ^~~~
a.cc:14:1: error: expected declaration before '}' token
   14 | }
      | ^
Language: C++

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

int main() 
{ 
int A,B,C,D;
int x=0;
int y=0;
cin>>A>>B>>C>>D;
 if(C<B ){
x=B-C;

}
if(D<B){
y=B-D;	
}
cout<<x-y;
} 

Compiler output:
a.cc:4:9: fatal error: conio.h: No such file or directory
    4 | #include<conio.h>
      |         ^~~~~~~~~
compilation terminated.
Language: C++

#include <iostream> 
using namespace std;
 int main(){ 
int a,w,b;
cin>>a>>w>>b;
if((a<b)&&((b<(a+w))){

cout<<"0";
}
if((b<a)&&(b<(a+w)))
{cout<<a-b;
}
if(b>(a+w))
{
cout<<b-(a+w);
}
}

Compiler output:
a.cc: In function 'int main()':
a.cc:6:22: error: expected ')' before '{' token
    6 | if((a<b)&&((b<(a+w))){
      |   ~                  ^
      |                      )
a.cc:17:1: error: expected primary-expression before '}' token
   17 | }
      | ^
Language: C++

#include <bits/stdc++.h>
using namespace std;
int main()
{
	int a , b , c , d ,c=0;
	cin>>a>>b>>c>>d;
	for(int i=0;i<=100;i++)
	{
		if( a<i && b>=i && c<i && d>=i)
		{
			c++;
		}
	}
	cout<<c;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:5:28: error: redeclaration of 'int c'
    5 |         int a , b , c , d ,c=0;
      |                            ^
a.cc:5:21: note: 'int c' previously declared here
    5 |         int a , b , c , d ,c=0;
      |                     ^
Language: C++

#include <iostream>
using namespace std; 
int main() {
	int s, a[2], b[2];
	
	for (int i = 0; i < 2; i++) {
		cin >> a[i];
	}
	for (int j=0;j<2;j++){
		cin >> b[j];
	}
	s = a[1] - b[0];
	cout << s;
}m

Compiler output:
a.cc:14:2: error: 'm' does not name a type; did you mean 'tm'?
   14 | }m
      |  ^
      |  tm
Language: C++

a, b , c ,d = map(int, input().split())


if b < c:
    print("0")
    exit()

if b < d:
    print((d-c)-(d-b))
else:
    print(d-c)



Compiler output:
a.cc:1:1: error: 'a' does not name a type
    1 | a, b , c ,d = map(int, input().split())
      | ^
Language: C++

a, b , c ,d = map(int, input().split())


if b < c:
    print("0")
    exit()

if b < d:
    print((b-c)-(d-b))
else:
    print(d-c)



Compiler output:
a.cc:1:1: error: 'a' does not name a type
    1 | a, b , c ,d = map(int, input().split())
      | ^
Language: C++

a, b , c ,d = map(int, input().split())


if b < c:
    print("0")
    exit()

if b < d:
    print(d-b)
else:
    print(d-c)



Compiler output:
a.cc:1:1: error: 'a' does not name a type
    1 | a, b , c ,d = map(int, input().split())
      | ^
Language: C++

#include <iostream>
#include <algorithm>

using namespace std;

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

Compiler output:
a.cc: In function 'int main()':
a.cc:11:21: error: 'stard' was not declared in this scope; did you mean 'start'?
   11 |     int ans = end - stard;
      |                     ^~~~~
      |                     start
Language: C++

#include <bits/stdc++.h>
#define rep(i,n) for (int i = 0; i < (n); i++) 
using namespace std;


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

Compiler output:
a.cc: In function 'int main()':
a.cc:10:3: error: 'elseif' was not declared in this scope
   10 |   elseif(a <= c && b <= d) cout << b - c << endl;
      |   ^~~~~~
a.cc:13:3: error: 'else' without a previous 'if'
   13 |   else cout << d - a << endl;
      |   ^~~~
Language: C

#include <iostream>
#include <vector>
#include <algorithm>
#include <set>
#include <map>
#include <utility>
#include <tuple>
#include <string>
using namespace std;
#define rep(i, n) for(int i = 0; i < (int)(n); i++)
#define SORT(x) sort(x.begin(),x.end())
#define REVE(x) reverse(x.begin(),x.end())
#define all(x) (x).begin(),(x).end()
#define fst first
#define mp make_pair
#define pb push_back
using LL = long long;
using ULL = unsigned long long;
#define FOR(i, m, n) for(int i = m;i < n;i++)
template<class T> inline bool chmax(T& a,T b){if(a<b){a=b;return 1;}return 0;}
template<class T> inline bool chmin(T& a,T b){if(a>b){a=b;return 1;}return 0;}
int main(){
    cin.tie(0);
    ios::sync_with_stdio(false);
    int A, B, C, D;
    cin >> A >> B >> C >> D;
  if(max(D, B)-min(A,C)>0){
  cout << min(D, B)-max(A,C);
}else{
  cout << 0;
  }
}

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

#include <iostream>
#include <vector>
#include <algorithm>
#include <set>
#include <map>
#include <utility>
#include <tuple>
#include <string>
using namespace std;
#define rep(i, n) for(int i = 0; i < (int)(n); i++)
#define SORT(x) sort(x.begin(),x.end())
#define REVE(x) reverse(x.begin(),x.end())
#define all(x) (x).begin(),(x).end()
#define fst first
#define mp make_pair
#define pb push_back
using LL = long long;
using ULL = unsigned long long;
#define FOR(i, m, n) for(int i = m;i < n;i++)
template<class T> inline bool chmax(T& a,T b){if(a<b){a=b;return 1;}return 0;}
template<class T> inline bool chmin(T& a,T b){if(a>b){a=b;return 1;}return 0;}
int main(){
{
    cin.tie(0);
    ios::sync_with_stdio(false);
    int A, B, C, D;
    cin >> A >> B >> C >> D;
  if(max(A, B)-min(C,B)){
  cout << max(A, B)-min(C,B);
}else{
  cout <<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;
#define int long long
typedef long long ll;
const int INF = (int)1e9 + 7;
#define REP(i, n) for (int i = 0, i < (n); i++)
#define ALL(obj) (obj).begin(), (obj).end() //コンテナじゃないと使えない!!
#define debug(x) cerr << #x <<
//cin,coutより遅いので注意
template <class T = int>
void in() //in<string>();とか書く intのときはそのままin();
{
    T x;
    cin >> x;
    return (x);
}
template <class T>
void print(T &x) { cout << x << "\n"; }

signed main()
{
    cin.tie(0);
    ios::sync_with_stdio(false);

    int a, b, c, d;
    cin >> a >> b >> c >> d;
    cout << max(0, min(b, d) - max(a, c)) << "\n";
}

Compiler output:
a.cc: In function 'int main()':
a.cc:27:16: error: no matching function for call to 'max(int, long long int)'
   27 |     cout << max(0, min(b, d) - max(a, c)) << "\n";
      |             ~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
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:27:16: note:   deduced conflicting types for parameter 'const _Tp' ('int' and 'long long int')
   27 |     cout << max(0, min(b, d) - max(a, c)) << "\n";
      |             ~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
/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:27:16: note:   mismatched types 'std::initializer_list<_Tp>' and 'int'
   27 |     cout << max(0, min(b, d) - max(a, c)) << "\n";
      |             ~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
Language: C++

#include<bits/stdc++.h>
using namespace std;
int main(){
  int A,B,C,D;
  cin>>A>>B>>C>>D;
  int sum=0;

  for(int i=C;i<=D;i++){
    for(int j=A;j<=B;j++){
      if(i==j){
sum++;
      }
    }
  }
  if(sum==0){
cout<<sum<<endl;
  }
  else{
    cou<<sum-1<<endl;
  }

}


Compiler output:
a.cc: In function 'int main()':
a.cc:19:5: error: 'cou' was not declared in this scope; did you mean 'cos'?
   19 |     cou<<sum-1<<endl;
      |     ^~~
      |     cos
Language: C++

#define _CRT_SECURE_NO_WARNINGS
#include<bits/stdc++.h>
using namespace std;
#ifndef FAST_IO
 #define IOS ios_base::sync_with_stdio(false);cin.tie(nullptr);
#endif
#define FILE_IO freopen("input.txt","r",stdin)
#define int long long
#define f first
#define s second
#define endl '\n'
#define all(c) c.begin(),c.end()
#define debug(x) cerr << #x << " = " << x << endl;
const int MOD=1e9+7;
const int INF=1<<29;
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
template<typename T>void print(T t){for(auto &it:t)cout<<it<<" ";}
inline int powerexp(int a,int b,int m){int res=1;while(b){if(b&1)res=res*a%m;a=a*a%m,b>>=1;}return res%m;}
void solve(){
  int A[2],B[2];
  for(auto& it:A)cin>>it;
  for(auto& it:B)cin>>it;
  if(A[1]<B[0]){cout<<0;return;}
  int ans=min(A[1],B[1]);
  ans-=max(A[0],B[0]);
  cout<<max(ans,0)<<endl;	
}
//-----------------------------
//comment from here for TOPCODER 
int32_t main(){
    IOS;
    solve();
    #ifdef LOCAL_DEFINE
    cerr<<"time elapsed "<<(double)clock()/CLOCKS_PER_SEC<<endl;
    #endif
}


Compiler output:
a.cc: In function 'void solve()':
a.cc:26:12: error: no matching function for call to 'max(long long int&, int)'
   26 |   cout<<max(ans,0)<<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: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:26:12: note:   deduced conflicting types for parameter 'const _Tp' ('long long int' and 'int')
   26 |   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:
/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:26:12: note:   mismatched types 'std::initializer_list<_Tp>' and 'long long int'
   26 |   cout<<max(ans,0)<<endl;
      |         ~~~^~~~~~~
Language: C++

int main(void) { 
    int A,B,C,D; 
    cin >> A >> B >> C >> D;

const int lower = max(A,C); 
const int upper = min(B,D);

 cout << max(0,upper-lower) << endl;
return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:3:5: error: 'cin' was not declared in this scope
    3 |     cin >> A >> B >> C >> D;
      |     ^~~
a.cc:5:19: error: 'max' was not declared in this scope
    5 | const int lower = max(A,C);
      |                   ^~~
a.cc:6:19: error: 'min' was not declared in this scope; did you mean 'main'?
    6 | const int upper = min(B,D);
      |                   ^~~
      |                   main
a.cc:8:2: error: 'cout' was not declared in this scope
    8 |  cout << max(0,upper-lower) << endl;
      |  ^~~~
a.cc:8:32: error: 'endl' was not declared in this scope
    8 |  cout << max(0,upper-lower) << endl;
      |                                ^~~~
Language: C++

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

int main(void){
    int a, b, c, d;
    
    cin>>a>>b>>c>>d;
    
    if(b<c){
        cout<<0<<endl;
    }else id(b>c){
        
        int t=b<=d?b:d;
        int s=a<=c?c:a;
        
        cout<<t-s<<endl;
    }else{
        cout<<1<<endl;
    }
}


Compiler output:
a.cc: In function 'int main()':
a.cc:17:11: error: 'id' was not declared in this scope; did you mean 'd'?
   17 |     }else id(b>c){
      |           ^~
      |           d
a.cc:23:6: error: 'else' without a previous 'if'
   23 |     }else{
      |      ^~~~
Language: C++

#include <iostream>

using namespace std;
int d[101];

int32_t main()
{
  int a, b, c, d;
  for (int i=a; i<=b; i++) d[i]++;
  for (int i=c; i<=d; i++) d[i]++;
  int res = 0;
  for (int i=0; i<=100; i++) if (d[i]==2) res++;
  cout << res;
  return 0;
}

Compiler output:
a.cc: In function 'int32_t main()':
a.cc:9:29: error: invalid types 'int[int]' for array subscript
    9 |   for (int i=a; i<=b; i++) d[i]++;
      |                             ^
a.cc:10:29: error: invalid types 'int[int]' for array subscript
   10 |   for (int i=c; i<=d; i++) d[i]++;
      |                             ^
a.cc:12:35: error: invalid types 'int[int]' for array subscript
   12 |   for (int i=0; i<=100; i++) if (d[i]==2) res++;
      |                                   ^
Language: C++

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

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

Compiler output:
a.cc: In function 'int main()':
a.cc:10:3: error: 'ans' was not declared in this scope; did you mean 'abs'?
   10 |   ans = goal - start;
      |   ^~~
      |   abs
Language: C++

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


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

Compiler output:
a.cc: In function 'int main()':
a.cc:31:20: error: expected ';' before '}' token
   31 |             ans = 0
      |                    ^
      |                    ;
   32 |         }
      |         ~
Language: C++

#include<iostream>
int main(){
  int a,b,c,d;
  std::cin>>a>>b>>c>>d;
  std::cout<<std::max(0,std::min(b,d)-std::max(a,c))<<endl;
  return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:5:55: error: 'endl' was not declared in this scope; did you mean 'std::endl'?
    5 |   std::cout<<std::max(0,std::min(b,d)-std::max(a,c))<<endl;
      |                                                       ^~~~
      |                                                       std::endl
In file included from /usr/include/c++/14/iostream:41,
                 from a.cc:1:
/usr/include/c++/14/ostream:744:5: note: 'std::endl' declared here
  744 |     endl(basic_ostream<_CharT, _Traits>& __os)
      |     ^~~~
Language: C++

#include<iostream>
int main(){
  int a,b,c,d;
  std::cin>>a>>b>>c>>d;
  std::cout<<max(0,min(b,d)-max(a,c))<<endl;
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:5:20: error: 'min' was not declared in this scope; did you mean 'std::min'?
    5 |   std::cout<<max(0,min(b,d)-max(a,c))<<endl;
      |                    ^~~
      |                    std::min
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:281:5: note: 'std::min' declared here
  281 |     min(const _Tp& __a, const _Tp& __b, _Compare __comp)
      |     ^~~
a.cc:5:29: error: 'max' was not declared in this scope; did you mean 'std::max'?
    5 |   std::cout<<max(0,min(b,d)-max(a,c))<<endl;
      |                             ^~~
      |                             std::max
/usr/include/c++/14/bits/stl_algobase.h:303:5: note: 'std::max' declared here
  303 |     max(const _Tp& __a, const _Tp& __b, _Compare __comp)
      |     ^~~
a.cc:5:14: error: 'max' was not declared in this scope; did you mean 'std::max'?
    5 |   std::cout<<max(0,min(b,d)-max(a,c))<<endl;
      |              ^~~
      |              std::max
/usr/include/c++/14/bits/stl_algobase.h:303:5: note: 'std::max' declared here
  303 |     max(const _Tp& __a, const _Tp& __b, _Compare __comp)
      |     ^~~
a.cc:5:40: error: 'endl' was not declared in this scope; did you mean 'std::endl'?
    5 |   std::cout<<max(0,min(b,d)-max(a,c))<<endl;
      |                                        ^~~~
      |                                        std::endl
/usr/include/c++/14/ostream:744:5: note: 'std::endl' declared here
  744 |     endl(basic_ostream<_CharT, _Traits>& __os)
      |     ^~~~
Language: C++

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


int main(){
  int A, B, C, D;
  cin >> A >> B >> C >> D;
  cout << max(0, min(B, D) - max(a, C)) << endl;
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:8:34: error: 'a' was not declared in this scope
    8 |   cout << max(0, min(B, D) - max(a, C)) << endl;
      |                                  ^
Language: C++

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

Compiler output:
a.cc: In function 'int main()':
a.cc:11:29: error: expected ';' before 'cout'
   11 |   else(a<=d && d<=a && a<=b)cout<<0<<endl;
      |                             ^~~~
      |                             ;
Language: C++

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

int main(){
  int as,ae,bs,be,answer;
  cin >> as >> ae >> bs >> be;
  
  if(as<=bs && bs <= ae) anwer= ae-bs;
  if(as>bs && as < be) answer= be-as;
  
  cout << answer;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:9:26: error: 'anwer' was not declared in this scope; did you mean 'answer'?
    9 |   if(as<=bs && bs <= ae) anwer= ae-bs;
      |                          ^~~~~
      |                          answer
Language: C++

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

int main() {
  int A, B, C, D;
  cin >> A >> B >> C >> D;
  int ans = 0;
  if (A < C) {
    if (A + B >= C) {
      if (A + B <= C + D) {
        ans = (A + B) - C;
      }
      else {
        ans = D;
      }
    }
  }
  else if {
    if (C + D >= A) {
      if (C + D <= A + B) {
        ans = (C + D) - A;
      }
      else {
        ans = B;
      }
    }
  }
  else {
    ans = abs(C - D);
  }
  cout << ans << '\n';
}

Compiler output:
a.cc: In function 'int main()':
a.cc:19:11: error: expected '(' before '{' token
   19 |   else if {
      |           ^
      |           (
a.cc:29:3: error: 'else' without a previous 'if'
   29 |   else {
      |   ^~~~
Language: C++

#include <iostream>
using namespace std;

int main() {
  int A, B, C, D;
  cin >> A >> B >> C >> D;
  int ans = 0;
  if (A < C) {
    if (A + B >= C) {
      if (A + B <= C + D) {
        ans = (A + B) - C;
      }
      else {
        ans = D;
      }
    }
  }
  else {
    if (C + D >= A) {
      if (C + D <= A + B) {
        ans = (C + D) = A;
      }
      else {
        ans = B;
      }
    }
  }
  cout << ans << '\n';
}

Compiler output:
a.cc: In function 'int main()':
a.cc:21:18: error: lvalue required as left operand of assignment
   21 |         ans = (C + D) = A;
      |               ~~~^~~~
Language: C++

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

int main() {

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


Compiler output:
a.cc: In function 'int main()':
a.cc:8:36: error: expected ';' before 'cout'
    8 |   s = max(0, min(b, d) - max(a, c))
      |                                    ^
      |                                    ;
    9 |   cout << s << endl;
      |   ~~~~
Language: C++

#include <bits/stdc++.h>
using namespace std;  
typedef long long ll;
typedef vector<ll> vint;
int main() {
  ll a,b ,c,d,ans=0;
  cin >>a>>b>>c>>d;
  
  vint v(101),b(101);
  for (ll i=a;i<=b;i++) v.at(i)++;
  for (ll i=c;i<=d;i++) b.at(i)++;
  
  for (ll i=0;i<=100;i++) {
    if (v.at(i)==1 && b.at(i)==1) ans++;
  }
  cout << ans;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:9:15: error: conflicting declaration 'vint b'
    9 |   vint v(101),b(101);
      |               ^
a.cc:6:8: note: previous declaration as 'll b'
    6 |   ll a,b ,c,d,ans=0;
      |        ^
a.cc:11:27: error: request for member 'at' in 'b', which is of non-class type 'll' {aka 'long long int'}
   11 |   for (ll i=c;i<=d;i++) b.at(i)++;
      |                           ^~
a.cc:14:25: error: request for member 'at' in 'b', which is of non-class type 'll' {aka 'long long int'}
   14 |     if (v.at(i)==1 && b.at(i)==1) ans++;
      |                         ^~
Language: C++

#include <iostream>
using namespace std;

int main() {
  int A, B, C, D;
  cin >> A >> B >> C >> D;
  int start, end ;
  start = min(A, C);
  end   = max(B, D);
  
  int cnt = 0;
  bool Alice, Bob;
  for(int i = start; i < end; ++i) {
    if (i >= A && i <= B) Alice = true;
    else Alice = false;
    if (i >= C && i <= D) Bob = true;
    else Bob = false;
    if (Alice && Bob) ++cnt;
  }
  cout << cnd << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:20:11: error: 'cnd' was not declared in this scope; did you mean 'cnt'?
   20 |   cout << cnd << endl;
      |           ^~~
      |           cnt
Language: C++

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

int main() {
  int a[4];
  for (int i=0; i<4; i++) {
    cin>>a[i];
  }
  if (a[1]<a[2]) {
    cout<<0<<endl;
    retrun 0;
  }
  sort(a,a+3);
  cout<<a[2]-a[1]<<endl;
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:12:5: error: 'retrun' was not declared in this scope
   12 |     retrun 0;
      |     ^~~~~~
Language: C++

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

}

Compiler output:
a.cc: In function 'int main()':
a.cc:24:20: error: lvalue required as left operand of assignment
   24 |         else if(a>c&&b=d){
      |                 ~~~^~~
a.cc:27:20: error: lvalue required as left operand of assignment
   27 |         else if(a<c&&b=d){
      |                 ~~~^~~
a.cc:30:20: error: lvalue required as left operand of assignment
   30 |         else if(a=c&&b=d){
      |                   ~^~~
Language: Java

import java.util.*;
import static java.lang.Math.abs;
public class Main{
public static void main(String... args){
Scanner sc=new Scanner(System.in);
int[] x=new int[]{sc.nextInt(),sc.nextInt(),sc.nextInt(),sc.nextInt()};
int[] tl=new int[101];
for(int i=0;i<101;i++){
if(i>=x[0]&&i<=x[1])tl++;
if(i>=x[2]&&i<=x[3])tl++;
}
int ans=0;
for(int i=0;i<101;i++){
if(tl[i]==2)ans++;
}
System.out.println(ans);
}
}


Compiler output:
Main.java:9: error: bad operand type int[] for unary operator '++'
if(i>=x[0]&&i<=x[1])tl++;
                      ^
Main.java:10: error: bad operand type int[] for unary operator '++'
if(i>=x[2]&&i<=x[3])tl++;
                      ^
2 errors
Language: C++

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

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

  if (b =< c || a >= d) {
    cout << 0 << endl;
    return 0;
  }

  if (b >= c) {
    if (c >= a) {
      cout << d - c << endl;
      return 0
    } else {
      cout << d - a << endl;
      return 0;
    }
  }

  if (a <= d) {
    if (a >= c) {
      cout << b - a << endl;
      return 0;
    } else {
      cout << b - c << endl;
      return 0;
    }
  }
}

Compiler output:
a.cc: In function 'int main()':
a.cc:8:10: error: expected primary-expression before '<' token
    8 |   if (b =< c || a >= d) {
      |          ^
a.cc:16:15: error: expected ';' before '}' token
   16 |       return 0
      |               ^
      |               ;
   17 |     } else {
      |     ~
Language: C++

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

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

import java.util.Scanner;

public class ABC70_B {
    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 ans = 0;
        ans = Math.min(b, d) - Math.max(a, c);

        System.out.println(ans > 0 ? ans : 0);
    }
}


Compiler output:
Main.java:3: error: class ABC70_B is public, should be declared in a file named ABC70_B.java
public class ABC70_B {
       ^
1 error
Language: C

#include<stdio.h>

int main(){
  int A, B, C, D, ans;
  
  scanf("%d %d %d %d", &A, &B, &C, &D);
  if(A >= C && B >= D){
    ans = D - A;;
  } else if(A >= C && B < D){
    ans = B - A;
  }　else if(A < C && B >= D){
    ans = D - C;
  } else if(A < C && B < D){
    ans = B - C;
  }
  
  if(ans < 0){
    ans = 0;
  }
  
  printf("%d\n", ans);
  
  return 0;
}

Compiler output:
main.c: In function 'main':
main.c:11:4: error: stray '\343' in program
   11 |   }<U+3000>else if(A < C && B >= D){
      |    ^~~~~~~~
Language: C++


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


Compiler output:
a.cc: In function 'int main()':
a.cc:5:3: error: 'cin' was not declared in this scope
    5 |   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 | 
a.cc:8:5: error: 'cout' was not declared in this scope
    8 |     cout<<(b-a);
      |     ^~~~
a.cc:8:5: note: 'std::cout' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
a.cc:12:5: error: 'cout' was not declared in this scope
   12 |     cout<<(d-c);
      |     ^~~~
a.cc:12:5: note: 'std::cout' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
a.cc:16:5: error: 'cout' was not declared in this scope
   16 |     cout<<(b-c);
      |     ^~~~
a.cc:16:5: note: 'std::cout' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
a.cc:20:5: error: 'cout' was not declared in this scope
   20 |     cout<<(d-a);
      |     ^~~~
a.cc:20:5: note: 'std::cout' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
a.cc:23:3: error: 'cout' was not declared in this scope
   23 |   cout<<ans;
      |   ^~~~
a.cc:23:3: note: 'std::cout' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
Language: C++

int main(){
	int a,b,c,d,ret;
	cin >> a >> b >> c >> d;
  	ret = (a > c ? c:a) - (b > d ? d:b);
  	if(ret >= 0) cin << ret;
  	else	cin << 0;
  	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:3:9: error: 'cin' was not declared in this scope
    3 |         cin >> a >> b >> c >> d;
      |         ^~~
Language: C++

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

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

	if (b < c) { cout << "0" << endl; }
  　else if(b==c){cout<<"1"<<endl;}
	else { cout << min(b, d) - max(c,a) << endl; }
	
	return 0;
}



Compiler output:
a.cc:9:3: error: extended character 　 is not valid in an identifier
    9 |   　else if(b==c){cout<<"1"<<endl;}
      |   ^
a.cc: In function 'int main()':
a.cc:9:3: error: '\U00003000else' was not declared in this scope
    9 |   　else if(b==c){cout<<"1"<<endl;}
      |   ^~~~~~
a.cc:10:9: error: 'else' without a previous 'if'
   10 |         else { cout << min(b, d) - max(c,a) << endl; }
      |         ^~~~
Language: C++

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


Compiler output:
a.cc: In function 'int main()':
a.cc:12:27: error: expected primary-expression at end of input
   12 |                 if(c<a&&b>
      |                           ^
a.cc:12:27: error: expected ')' at end of input
   12 |                 if(c<a&&b>
      |                   ~       ^
      |                           )
a.cc:12:27: error: expected statement at end of input
a.cc:12:27: error: expected '}' at end of input
a.cc:8:16: note: to match this '{'
    8 |         if(c<b){
      |                ^
a.cc:12:27: error: expected '}' at end of input
   12 |                 if(c<a&&b>
      |                           ^
a.cc:2:11: note: to match this '{'
    2 | int main(){
      |           ^
Language: C++

#define __USE_MINGW_ANSI_STDIO 0
#include <iostream>
#include <string>
#include <vector>
#include <stdio.h>
#include <cstdlib>
#include <algorithm>
#include <cmath>
#include <set>
using namespace std;


int sumdigit(int x){
   int sum = 0;
    while(x != 0){
        sum += x % 10;
        x /= 10;
    }
    return sum;
}
int main(){
    int A, B, C, D;
    cin >> A >> B >> C >> D;
    int a[101] = {};
    for(int i = A; i < B; i++){
        a[i] = 1;
    }
    for(int i = C; i <  D; i++){
        a[i] += 1;
    }
    int cnt = 0;
    for(int i = 0; i <= 101; i++){
        if(a[i] == 2)cnt++;
    }


Compiler output:
a.cc: In function 'int main()':
a.cc:34:6: error: expected '}' at end of input
   34 |     }
      |      ^
a.cc:21:11: note: to match this '{'
   21 | int main(){
      |           ^
Language: C++

#include <iostream>
#include <string>
#include <vector>
#include <algorithm>
#include <math.h>
#include <numeric>

using namespace std;
typedef long long ll;

int main(){

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

  return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:16:29: error: expected ';' before 'if'
   16 |   ans =min(b, d) - max(a, c)
      |                             ^
      |                             ;
   17 |   if (ans <= 0){
      |   ~~                         
a.cc:20:3: error: 'else' without a previous 'if'
   20 |   else {
      |   ^~~~
Language: C++

#include <bits/stdc++.h>

using namespace std;

int main(){

	int A,B,C,D;
	cin >> A >> B >>C >>D;
	
	int time = 0;
	//aliceのほうが早い
	if(A<C){
		if(B>=C){
		if(D>B){time = B-C;}
		else{time = D-C;}
	}
	
	else if(A>C){
		if(D>=A){
		if(B>D){time = D-A;}
		else{time= B-A;}
	}
	
	else{
		if(B-A>=D-C){
			time =B-A; 
		}
		else time = D-C;
	
	}
	
	cout <<time << endl;
	
	
	return 0;

}

Compiler output:
a.cc: In function 'int main()':
a.cc:37:2: error: expected '}' at end of input
   37 | }
      |  ^
a.cc:12:16: note: to match this '{'
   12 |         if(A<C){
      |                ^
a.cc:37:2: error: expected '}' at end of input
   37 | }
      |  ^
a.cc:5:11: note: to match this '{'
    5 | int main(){
      |           ^
Language: C++

#include <bits/stdc++.h>

using namespace std;

int main(){

	int A,B,C,D;
	cin >> A >> B >>C >>D;
	
	int time = 0;
	//aliceのほうが早い
	if(A<C){
		if(B>=C){
		if(D>B){time = B-C;}
		else{time = D-C;}
	}
	
	else if(A>C){
		if(D>=A){
		if(B>D){time = D-A;}
		else{time= B-A;
	}
	
	else{
		if(B-A>=D-C){
			time =B-A; 
		}
		else time = D-C;
	
	}
	
	cout <<time << endl;
	
	
	return 0;

}

Compiler output:
a.cc: In function 'int main()':
a.cc:24:9: error: expected '}' before 'else'
   24 |         else{
      |         ^~~~
a.cc:19:25: note: to match this '{'
   19 |                 if(D>=A){
      |                         ^
a.cc:37:2: error: expected '}' at end of input
   37 | }
      |  ^
a.cc:12:16: note: to match this '{'
   12 |         if(A<C){
      |                ^
a.cc:37:2: error: expected '}' at end of input
   37 | }
      |  ^
a.cc:5:11: note: to match this '{'
    5 | int main(){
      |           ^
Language: C++

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

int main(){ 
  int A,B,C,D;
  cin >> A >> B >> C >> D;
  if(min(B,D) < max(A,C)){
    cout << '0' << endl;
  }else{
    cout << min(B,D)-max(A,C) << endl;
  }
}
}

Compiler output:
a.cc:16:1: error: expected declaration before '}' token
   16 | }
      | ^