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

public class Main {

		public static void main(String[] args){
			Scanner sc = new Scanner(System.in);
			// 整数の入力
			int N = sc.nextInt();
			// スペース区切りの整数の入力
			int M = sc.nextInt();
			int L =0;
			int R =0;
			int Lmax=0;
			int Rmin=N;
			for (int i = 0; i<M ; i++){
				L=sc.nextInt();
				R=sc.nextInt();
				if(Lmax<L){
					Lmax = L;
				}
				if(Rmin>R){
					Rmin = R;
				}
			}
			System.out.println(Rmin-Lmax+1);
		}

	}

Compiler output:
Main.java:4: error: cannot find symbol
			Scanner sc = new Scanner(System.in);
			^
  symbol:   class Scanner
  location: class Main
Main.java:4: error: cannot find symbol
			Scanner sc = new Scanner(System.in);
			                 ^
  symbol:   class Scanner
  location: class Main
2 errors
Language: C++

#include<iostream>
using namespace std;

bool f[200000];
int main(){
    int N,M;
    cin>>N>>M;
    int L[200000],R[200000];
    cin>>L[0]>>R[0];
    for(int i=L[0];i<=R[0];i++) f[i]=true;

    for(int i=1;i<M;i++){
        cin>>L[i]>>R[i];
        for(int j=L[i];i<=R[i];i++){
            f[i]&=true;
        }
    }
    int num=0;
    for(int i=1;i<=N;i++){
        nnum+=f[i];
    }

    /*
    int num=0;
    for(int i=1;i<=N;i++){
        int c=1;
        for(int j=M-1;j>=0;j--){
            if(i<L[j]||i>R[j]) {
                c=0;
                break;
            } 
        }
        num+=c;
    }

    */
    
    cout<<num<<endl;
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:20:9: error: 'nnum' was not declared in this scope; did you mean 'num'?
   20 |         nnum+=f[i];
      |         ^~~~
      |         num
Language: C++

#include <iostream>

int main()
{
	int N, M;
	int L[100000] = { 0 };
	int R[100000] = { 0 };
	int ans = 1;
	int count = 0;
	scanf("%d %d",&N,&M);

	for (int i = 0; i < M; i++) {
		scanf("%d %d", &L[i], &R[i]);
	}
	for (int i =1; i <= N; i++) {
		ans = 1;
		for (int j = 0; j < M; j++) {
			if (i< L[j]  i > R[j]) {
				ans = 0;
				break;
			}
		}
		if (ans==1) {
			count++;
		}
	}
	
				
				std::cout << count;
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:18:36: error: expected ')' before 'i'
   18 |                         if (i< L[j]  i > R[j]) {
      |                            ~       ^ ~
      |                                    )
Language: Java

package codes;

import fastio.InputReader;
import fastio.OutputWriter;

public class CPrison {
    public void solve(int testNumber, InputReader in, OutputWriter out) {
        int n = in.ni() , m = in.ni();
        int[] arr = new int[100003];

        for(int i = 0;i < m;++i){

            int l = in.ni() , r = in.ni();
            arr[l] = r;

        }
        int[][] gates = new int[m][2];
        int k = 0;
        for(int i = 0;i < arr.length ;++i){
            if(arr[i] != 0){
                gates[k][0] = i;
                gates[k++][1] = arr[i];
            }
        }

        int a = gates[0][0] , b = gates[0][1];
        int val = Integer.MAX_VALUE , ans = val;
        for(int i = 1;i < m;++i){
            int c = gates[i][0] , d = gates[i][1];
            if(c > b) ans = 0;
            else{
                if(d >= b) ans = (b-c+1);
                else ans = (d-c+1);
            }
            val = Math.min(val , ans);
        }

        out.println(val);

    }
}


Compiler output:
Main.java:6: error: class CPrison is public, should be declared in a file named CPrison.java
public class CPrison {
       ^
Main.java:3: error: package fastio does not exist
import fastio.InputReader;
             ^
Main.java:4: error: package fastio does not exist
import fastio.OutputWriter;
             ^
Main.java:7: error: cannot find symbol
    public void solve(int testNumber, InputReader in, OutputWriter out) {
                                      ^
  symbol:   class InputReader
  location: class CPrison
Main.java:7: error: cannot find symbol
    public void solve(int testNumber, InputReader in, OutputWriter out) {
                                                      ^
  symbol:   class OutputWriter
  location: class CPrison
5 errors
Language: C++

#include<bits/stdc++.h>
#define lli long long int;
using namespace std;
int main()
{
  lli n,m;
  lli l[m],r[m];
  int x=100000,y=0;
  for(lli i=0;i<m;i++)
  {
    cin>>l[i]>>r[i];
    if(x>l[i])
    {
      x=l[i];
    }
    if(y<r[i])
    {
      y=r[i];
    }
  }
  if(m==1)
  {
    cout<<n;
    return 0;
  }
  int a[r]={0},count=0;
  for(lli i=0;i<m;i++)
  {
    for(lli j=l[i];j<r[i];j++)
    {
      a[j]++;
    }
  }
  for(lli i=x;j<y;j++)
  {
    if(a[i]>=m)
    {
      count++;
    }
  }
  cout<<count;
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:2:23: error: declaration does not declare anything [-fpermissive]
    2 | #define lli long long int;
      |                       ^~~
a.cc:6:3: note: in expansion of macro 'lli'
    6 |   lli n,m;
      |   ^~~
a.cc:6:7: error: 'n' was not declared in this scope; did you mean 'yn'?
    6 |   lli n,m;
      |       ^
      |       yn
a.cc:6:9: error: 'm' was not declared in this scope; did you mean 'tm'?
    6 |   lli n,m;
      |         ^
      |         tm
a.cc:2:23: error: declaration does not declare anything [-fpermissive]
    2 | #define lli long long int;
      |                       ^~~
a.cc:7:3: note: in expansion of macro 'lli'
    7 |   lli l[m],r[m];
      |   ^~~
a.cc:7:7: error: 'l' was not declared in this scope
    7 |   lli l[m],r[m];
      |       ^
a.cc:7:12: error: 'r' was not declared in this scope
    7 |   lli l[m],r[m];
      |            ^
a.cc:2:23: error: declaration does not declare anything [-fpermissive]
    2 | #define lli long long int;
      |                       ^~~
a.cc:9:7: note: in expansion of macro 'lli'
    9 |   for(lli i=0;i<m;i++)
      |       ^~~
a.cc:9:11: error: 'i' was not declared in this scope
    9 |   for(lli i=0;i<m;i++)
      |           ^
a.cc:9:18: error: expected ')' before ';' token
    9 |   for(lli i=0;i<m;i++)
      |      ~           ^
      |                  )
a.cc:9:19: error: 'i' was not declared in this scope
    9 |   for(lli i=0;i<m;i++)
      |                   ^
a.cc:2:23: error: declaration does not declare anything [-fpermissive]
    2 | #define lli long long int;
      |                       ^~~
a.cc:27:7: note: in expansion of macro 'lli'
   27 |   for(lli i=0;i<m;i++)
      |       ^~~
a.cc:27:18: error: expected ')' before ';' token
   27 |   for(lli i=0;i<m;i++)
      |      ~           ^
      |                  )
a.cc:2:23: error: declaration does not declare anything [-fpermissive]
    2 | #define lli long long int;
      |                       ^~~
a.cc:34:7: note: in expansion of macro 'lli'
   34 |   for(lli i=x;j<y;j++)
      |       ^~~
a.cc:34:15: error: 'j' was not declared in this scope
   34 |   for(lli i=x;j<y;j++)
      |               ^
a.cc:34:18: error: expected ')' before ';' token
   34 |   for(lli i=x;j<y;j++)
      |      ~           ^
      |                  )
a.cc:34:19: error: 'j' was not declared in this scope
   34 |   for(lli i=x;j<y;j++)
      |                   ^
Language: C

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

int main (){
int n =0, m=0;
scanf("%d %d\n", &n,&m);
int buf1=0, buf2=0;
int l =0, r =100001;
for (int i=0; i<m; i++){
scanf("%d %d", &buf1, &buf2);
if (buf1 > l) l =buf1;
if(buf2<r) r=buf2;
}
if (r<l)printf("0")
int max =(n>r) ? r:n;
int min =(l>n) ? n:l;
if (max ==min)printf("0");
printf("%d\n", max -min+1);
return 0;
}

Compiler output:
main.c: In function 'main':
main.c:14:20: error: expected ';' before 'int'
   14 | if (r<l)printf("0")
      |                    ^
      |                    ;
   15 | int max =(n>r) ? r:n;
      | ~~~                 
main.c:17:5: error: 'max' undeclared (first use in this function)
   17 | if (max ==min)printf("0");
      |     ^~~
main.c:17:5: note: each undeclared identifier is reported only once for each function it appears in
Language: C++

#include <iostream>
#include <vector>

using namespace std; 

#define REP(i,n) for(int i=0, i##_len=(n); i<i##_len; ++i)


int main() {
    
  int N, M, i, ans;
  int L[10000], R[10000];

  cin >> N >> M;
  
  REP(i, M){
  	cin >> L[i] >> R[i];
  }

  std::sort(L, L+M, std::greater<int>() );
  std::sort(R, R+M, std::greater<int>() );

  if( L[0] > N ){
	  ans = 0;
  } else if( R[M-1] > N ){
	  ans = N - L[0] + 1;
  } else {
  	  ans = R[M-1] - L[0] + 1;
  }

  cout << ans << endl;

  return 0;
}

/*
                   _ooOoo_
                  o8888888o
                  88" . "88
                  (| -_- |)
                  O\  =  /O
               ____/`---'\____
             .'  \\|     |//  `.
            /  \\|||  :  |||//  \
           /  _||||| -:- |||||-  \
           |   | \\\  -  /// |   |
           | \_|  ''\---/''  |   |
           \  .-\__  `-`  ___/-. /
         ___`. .'  /--.--\  `. . __
      ."" '<  `.___\_<|>_/___.'  >'"".
     | | :  `- \`.;`\ _ /`;.`/ - ` : | |
     \  \ `-.   \_ __\ /__ _/   .-` /  /
======`-.____`-.___\_____/___.-`____.-'======
                   `=---='
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
         pass System Test!
*/

Compiler output:
a.cc: In function 'int main()':
a.cc:20:8: error: 'sort' is not a member of 'std'; did you mean 'qsort'?
   20 |   std::sort(L, L+M, std::greater<int>() );
      |        ^~~~
      |        qsort
a.cc:21:8: error: 'sort' is not a member of 'std'; did you mean 'qsort'?
   21 |   std::sort(R, R+M, std::greater<int>() );
      |        ^~~~
      |        qsort
Language: C++

#include <iostream>
#include <string>
#include <cmath>
#include <iomanip>
using namespace std;

int main(void){
	int N,M;
	cin >> N >> M;
	
	int L[100010],R[100010];
	int Lmax=0,Rmin=N;
	for(int i=1;i<=M;i++){
		cin >> L[i] >> R[i];
		if(Lmax < L[i]){
			Lmax=L[i];
		}
		if(Rmin > R[i]){
			Rmin=R[i];
		}
	}
	
	int buf= Rmin-Lmax+1;
	
	if(buf<0){
		cout << 0;
	}else{
		cout buf;
	}
	
	return 0;
		
}

Compiler output:
a.cc: In function 'int main()':
a.cc:28:21: error: expected ';' before 'buf'
   28 |                 cout buf;
      |                     ^~~~
      |                     ;
Language: C

#include <stdio.h>

int main(void){
  int i,j,k,N,M,answer =0,L[100000],R[100000];
  
  scanf("%d %d",&N,&M);
  
  for(i = 0;i< M;i++){
    scanf("%d %d",&L[i],&R[i]);
  }
  
  for(i = 0;i< N;i++){
    for(j = 0;j< M;j++){
      if(L[j] - 1 <= i && i <= R[i]-1{
        if(j == M-1) answer++;
      }else{
        break;
      }
         }
         }
         
         printf("%d",answer);
         return 0;
         }
         

Compiler output:
main.c: In function 'main':
main.c:14:38: error: expected ')' before '{' token
   14 |       if(L[j] - 1 <= i && i <= R[i]-1{
      |         ~                            ^
      |                                      )
main.c:19:10: error: expected expression before '}' token
   19 |          }
      |          ^
Language: C

#include <stdio.h>

int main(void){
  int i,j,k,N,M,answer =0,L[100000],M[100000];
  
  scanf("%d %d",&N,&M);
  
  for(i = 0;i< M;i++){
    scanf("%d %d",&L[i],&R[i]);
  }
  
  for(i = 0;i< N;i++){
    for(j = 0;j< M;j++){
      if(L[j] - 1 <= i && i <= R[i]-1{
        if(j == M-1) answer++;
      }else{
        break;
      }
         }
         }
         
         printf("%d",answer);
         return 0;
         }
         

Compiler output:
main.c: In function 'main':
main.c:4:37: error: conflicting types for 'M'; have 'int[100000]'
    4 |   int i,j,k,N,M,answer =0,L[100000],M[100000];
      |                                     ^
main.c:4:15: note: previous declaration of 'M' with type 'int'
    4 |   int i,j,k,N,M,answer =0,L[100000],M[100000];
      |               ^
main.c:9:26: error: 'R' undeclared (first use in this function)
    9 |     scanf("%d %d",&L[i],&R[i]);
      |                          ^
main.c:9:26: note: each undeclared identifier is reported only once for each function it appears in
main.c:14:38: error: expected ')' before '{' token
   14 |       if(L[j] - 1 <= i && i <= R[i]-1{
      |         ~                            ^
      |                                      )
main.c:19:10: error: expected expression before '}' token
   19 |          }
      |          ^
Language: C++

#include <stdio.h>

int main(void){
  int i,j,k,N,M,answer =0,L[100000],M[100000];
  
  scanf("%d %d",&N,&M);
  
  for(i = 0;i< M;i++){
    scanf("%d %d",&L[i],&R[i]);
  }
  
  for(i = 0;i< N;i++){
    for(j = 0;j< M;j++){
      if(L[j] - 1 <= i && i <= R[i]-1{
        if(j == M-1) answer++;
      }else{
        break;
      }
         }
         }
         
         printf("%d",answer);
         return 0;
         }
         

Compiler output:
a.cc: In function 'int main()':
a.cc:4:37: error: conflicting declaration 'int M [100000]'
    4 |   int i,j,k,N,M,answer =0,L[100000],M[100000];
      |                                     ^
a.cc:4:15: note: previous declaration as 'int M'
    4 |   int i,j,k,N,M,answer =0,L[100000],M[100000];
      |               ^
a.cc:9:26: error: 'R' was not declared in this scope
    9 |     scanf("%d %d",&L[i],&R[i]);
      |                          ^
a.cc:14:32: error: 'R' was not declared in this scope
   14 |       if(L[j] - 1 <= i && i <= R[i]-1{
      |                                ^
a.cc:14:38: error: expected ')' before '{' token
   14 |       if(L[j] - 1 <= i && i <= R[i]-1{
      |         ~                            ^
      |                                      )
a.cc:19:10: error: expected primary-expression before '}' token
   19 |          }
      |          ^
Language: C++

#include <bits/stdc++.h>
using namespace std;
int main(){
  int N,M;
  cin >>N>>M;
  vecter<vecter<int>>data(M,vecter<int>(2));
  for(int i=0;i<M;i++){
    for(int j=0;j<2;j++){
      cin>> data.at(i).at(j);
    }
  }
  
  int count=0;
  int big=data.at(0).at(0) ,small=data.at(0).at(1);
  for(int k=0;k<M;k++){
    if(big<data.at(k).at(0)){
      big=data.at(k).at(0);
    }
    if(small>data.at(k).at(1)){
      small=data.at(k).at(1);
    }
    if(k==M-1){
      count=small-big+1;
      cout<<count<<endl;
    }
  }
}


Compiler output:
a.cc: In function 'int main()':
a.cc:6:3: error: 'vecter' was not declared in this scope
    6 |   vecter<vecter<int>>data(M,vecter<int>(2));
      |   ^~~~~~
a.cc:6:17: error: expected primary-expression before 'int'
    6 |   vecter<vecter<int>>data(M,vecter<int>(2));
      |                 ^~~
a.cc:9:18: error: overloaded function with no contextual type information
    9 |       cin>> data.at(i).at(j);
      |                  ^~
a.cc:14:16: error: overloaded function with no contextual type information
   14 |   int big=data.at(0).at(0) ,small=data.at(0).at(1);
      |                ^~
a.cc:16:17: error: overloaded function with no contextual type information
   16 |     if(big<data.at(k).at(0)){
      |                 ^~
a.cc:17:16: error: overloaded function with no contextual type information
   17 |       big=data.at(k).at(0);
      |                ^~
a.cc:19:8: error: 'small' was not declared in this scope; did you mean 'scalbl'?
   19 |     if(small>data.at(k).at(1)){
      |        ^~~~~
      |        scalbl
a.cc:19:19: error: overloaded function with no contextual type information
   19 |     if(small>data.at(k).at(1)){
      |                   ^~
a.cc:20:18: error: overloaded function with no contextual type information
   20 |       small=data.at(k).at(1);
      |                  ^~
a.cc:23:13: error: 'small' was not declared in this scope; did you mean 'scalbl'?
   23 |       count=small-big+1;
      |             ^~~~~
      |             scalbl
Language: C++

#include <iostream>
#include <vector>

using namespace std; 

#define REP(i,n) for(int i=0, i##_len=(n); i<i##_len; ++i)


int main() {
    
  int N, M, i, ans;
  int L[10000], R[10000];

  cin >> N >> M;
  
  REP(i, M){
  	cin >> L[i] >> R[i];
  }

  sort(L, L+M, std::greater<int>() );
  sort(R, R+M, std::greater<int>() );

  if( L[0] > N ){
	  ans = 0;
  } else if( R[M-1] > N ){
	  ans = N - L[0] + 1;
  } else {
  	  ans = R[M-1] - L[0] + 1;
  }

  cout << ans << endl;

  return 0;
}

/*
                   _ooOoo_
                  o8888888o
                  88" . "88
                  (| -_- |)
                  O\  =  /O
               ____/`---'\____
             .'  \\|     |//  `.
            /  \\|||  :  |||//  \
           /  _||||| -:- |||||-  \
           |   | \\\  -  /// |   |
           | \_|  ''\---/''  |   |
           \  .-\__  `-`  ___/-. /
         ___`. .'  /--.--\  `. . __
      ."" '<  `.___\_<|>_/___.'  >'"".
     | | :  `- \`.;`\ _ /`;.`/ - ` : | |
     \  \ `-.   \_ __\ /__ _/   .-` /  /
======`-.____`-.___\_____/___.-`____.-'======
                   `=---='
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
         pass System Test!
*/

Compiler output:
a.cc: In function 'int main()':
a.cc:20:3: error: 'sort' was not declared in this scope; did you mean 'short'?
   20 |   sort(L, L+M, std::greater<int>() );
      |   ^~~~
      |   short
Language: C

#include <stdio.h>
int main(){
  int n,m,a,i,j;
  int l[n],r[n],c[n];
  for(i=0;i<n;i++){
    c[i]=1;
  for(j=0;j<m;j++){
    scanf("%d %d",l[j],r[j]);
    for(i=l[j];i>=0;i--)c[i]=0;
    for(i=r[j];i<=n;i++)c[i]=0;
  }
  for(i=0;i<n;i++){
    if(c[i]>0)a++; 
  }
  printf("%d\n",a);
  return 0;
}


Compiler output:
main.c: In function 'main':
main.c:17:1: error: expected declaration or statement at end of input
   17 | }
      | ^
Language: C++

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

int main(void)
{
  int N,M,pass=0,lm=0,r,l;
  cin >> N >> M;
  rm=100000;
  for(int i=0;i<M;i++)
  {
    cin >> l >> r;
   if(lm<l) lm=l;
    if(rm>r)  rm=r;
  }
  for(int i=0;i<N;i++)
  {
    if(i+1<=rm && i+1 >=lm)pass++;
  }
  cout << pass <<endl;
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:8:3: error: 'rm' was not declared in this scope; did you mean 'r'?
    8 |   rm=100000;
      |   ^~
      |   r
Language: C++

#include <iostream>
using namespace std;

int main() {
  int n, m;
  cin >> n >> m;

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

  if (r_min > r_max) {
    cout << 0 << "\n";
  } else {
    cout << r_min - l_max + 1<< "\n";
  }
}


Compiler output:
a.cc: In function 'int main()':
a.cc:13:7: error: 'r_min' was not declared in this scope
   13 |   if (r_min > r_max) {
      |       ^~~~~
a.cc:13:15: error: 'r_max' was not declared in this scope
   13 |   if (r_min > r_max) {
      |               ^~~~~
a.cc:16:21: error: 'l_max' was not declared in this scope
   16 |     cout << r_min - l_max + 1<< "\n";
      |                     ^~~~~
Language: C++

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

int main(void)
{
  int N,M,pass=0,lm=0,r,m;
  cin >> N >> M;
  rm=100000;
  for(int i=0;i<M;i++)
  {
    cin >> l >> r;
   if(lm<l) lm=l;
    if(rm>r)  rm=r;
  }
  for(int i=0;i<N;i++)
  {
    if(i+1<=rm && i+1 >=lm)pass++;
  }
  cout << pass <<endl;
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:8:3: error: 'rm' was not declared in this scope; did you mean 'm'?
    8 |   rm=100000;
      |   ^~
      |   m
a.cc:11:12: error: 'l' was not declared in this scope
   11 |     cin >> l >> r;
      |            ^
Language: Java

import java.util.Scanner;
public class Main{
 public static void main(String[] args){
   Scanner sc = new Scanner(System.in);
   int N = sc.nextInt();
   int M = sc.nextInt();
   
   int min = 1;
   int max = N;
   
   for(int i=1;i<=M;i++)
   {
    int L = sc.nextInt();
    int R = sc.nextInt();
     
     if(min<L) min = L;
     if(max>R) max = R;
     
   }
   

   System.out.println(R-L+1);   
   
 }
}

Compiler output:
Main.java:22: error: cannot find symbol
   System.out.println(R-L+1);   
                      ^
  symbol:   variable R
  location: class Main
Main.java:22: error: cannot find symbol
   System.out.println(R-L+1);   
                        ^
  symbol:   variable L
  location: class Main
2 errors
Language: C

#include <stdio.h>
int main(){
  int n,m,a,i,j;
  int l,r,c[n];
  for(i=0;i<n;i++){
    c[i]=1;
  for(j=0;j<m;j++){
    scanf("%d %d",l,r);
    for(i=l;i>=0;i--)c[i]=0;
    for(i=r;i<=n;i++)c[i]=0;
  }
  for(i=0;i<n,i++){
    if(c[i]>0)a++; 
  }
  printf("%d\n",a;);
  return 0;
}

Compiler output:
main.c: In function 'main':
main.c:12:18: error: expected ';' before ')' token
   12 |   for(i=0;i<n,i++){
      |                  ^
      |                  ;
main.c:15:18: error: expected ')' before ';' token
   15 |   printf("%d\n",a;);
      |         ~        ^
      |                  )
main.c:17:1: error: expected declaration or statement at end of input
   17 | }
      | ^
Language: C

#include<stdo.h>
int main(){
  int a[20000];
  int N,M;
  int i;
  int cnt=0;
  scanf("%d %d",&N,&M);
  for(i=1;i<2*M;i=i+2){
    scanf("%d %d",&a[i],a[i+1]);
  }
 
  for(i=1;i<=2*M;i=i+2){
    if(a[i]>=N) cnt++;
  }
  
  printf("%d\n",cnt+1);
  return 0;
}
    
    
  
  

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

#include <bits/stdc++.h>
using namespace std;
int main(){
  int n,m;
  cin >> n >> m;
  int l[100000],r[100000];
  int maxs = 1000000;
  int mins = 0;
  for(int i=0;i<m;i++){
    cin >> l[i] >> r[i];
    maxs = min(r[i],maxs);
    mins = max(l[i],mins);
  }
  if(min>max){
    cout << 0 << endl;
  } else {
    cout << maxs-mins+1 << endl;
  }
}


Compiler output:
a.cc: In function 'int main()':
a.cc:14:9: error: invalid operands of types '<unresolved overloaded function type>' and '<unresolved overloaded function type>' to binary 'operator>'
   14 |   if(min>max){
      |      ~~~^~~~
Language: Java

import java.util.Scanner;
class Main {
  public static void main(String[] args) {
    Scanner sc = new Scanner(System.in);
    int cardNum = Integer.parseInt(sc.next());
    int gateNum = Integer.parseInt(sc.next());
    int min = 0;
    int max = 0;
    
    min = Integer.parseInt(sc.next());
    max = Integer.parseInt(sc.next());
   
    for(int gtn = 1; gtn < gateNum; gtn++){
      mint = Integer.parseInt(sc.next());
      if(min < mint) min = mint;
      maxt = Integer.parseInt(sc.next());
      if(max > maxt) max = maxt;
	}
    
    int counter = 0;
    for(int i = 0; i < cardNum; i++) {
      if(i >= min && i <= max) counter++; 
    }
    System.out.println(counter);
  }
}

Compiler output:
Main.java:14: error: cannot find symbol
      mint = Integer.parseInt(sc.next());
      ^
  symbol:   variable mint
  location: class Main
Main.java:15: error: cannot find symbol
      if(min < mint) min = mint;
               ^
  symbol:   variable mint
  location: class Main
Main.java:15: error: cannot find symbol
      if(min < mint) min = mint;
                           ^
  symbol:   variable mint
  location: class Main
Main.java:16: error: cannot find symbol
      maxt = Integer.parseInt(sc.next());
      ^
  symbol:   variable maxt
  location: class Main
Main.java:17: error: cannot find symbol
      if(max > maxt) max = maxt;
               ^
  symbol:   variable maxt
  location: class Main
Main.java:17: error: cannot find symbol
      if(max > maxt) max = maxt;
                           ^
  symbol:   variable maxt
  location: class Main
6 errors
Language: C++

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

int main()
{
    std::ios::sync_with_stdio(false);
    int n,m;
    cin >>n >> m;
    long long minn=0,maxn=n;
    long long a,b;
    for(int i=0;i<m;i++){
        cin >> a >> b;
        if(a>b)
            swap(a,b);
        minn=max(minn,a);
        maxn=min(maxn,b);
        //cout <<minn << maxn << endl;
    }
    cout << max(maxn-minn+1,0) << endl;
    return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:21:16: error: no matching function for call to 'max(long long int, int)'
   21 |     cout << max(maxn-minn+1,0) << 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:21:16: note:   deduced conflicting types for parameter 'const _Tp' ('long long int' and 'int')
   21 |     cout << max(maxn-minn+1,0) << 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:3:
/usr/include/c++/14/bits/stl_algo.h:5706:5: note: candidate: 'template<class _Tp> constexpr _Tp std::max(initializer_list<_Tp>)'
 5706 |     max(initializer_list<_Tp> __l)
      |     ^~~
/usr/include/c++/14/bits/stl_algo.h:5706:5: note:   candidate expects 1 argument, 2 provided
/usr/include/c++/14/bits/stl_algo.h:5716:5: note: candidate: 'template<class _Tp, class _Compare> constexpr _Tp std::max(initializer_list<_Tp>, _Compare)'
 5716 |     max(initializer_list<_Tp> __l, _Compare __comp)
      |     ^~~
/usr/include/c++/14/bits/stl_algo.h:5716:5: note:   template argument deduction/substitution failed:
a.cc:21:16: note:   mismatched types 'std::initializer_list<_Tp>' and 'long long int'
   21 |     cout << max(maxn-minn+1,0) << endl;
      |             ~~~^~~~~~~~~~~~~~~
Language: Java

import java.util.Scanner;
class Main {
  public static void main(String[] args) {
    Scanner sc = new Scanner(System.in);
    int cardNum = Integer.parseInt(sc.next());
    int gateNum = Integer.parseInt(sc.next());
    int min = 0;
    int max = 0;
    
    min = Integer.parseInt(sc.next());
    max = Integer.parseInt(sc.next());
   
    for(int gtn = 1; gtn < gateNum; gtn++){
      mint = Integer.parseInt(sc.next());
      if(min < mint) min = mint;
      maxt = Integer.parseInt(sc.next());
      if(max > maxt) max = maxt;
	}
    
    int counter = 0;
    for(int i = 0; i < cardNum; i++) {
      if(i >= min && i <= max) counter++; 
    }
    System.out.println(counter);
}

Compiler output:
Main.java:25: error: reached end of file while parsing
}
 ^
1 error
Language: C++

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

#define int				long long
#define FOR( i, m, n )  for( int (i) = (m); (i) < (n); (i)++ )
#define FORE( i, m, n ) FOR( i, m , n + 1 )
#define REP( i, n )     FOR( i, 0, n )
#define REPE( i, n )	FOR( i, 0, n + 1 )
#define FORR( i, m )	for( int (i) = (m); (i) >= 0; (i)-- )
#define REPONE( i, n )	FOR( i, 1, n + 1 )
#define ALL( a )        (a).begin(), (a).end()             
#define MP( a, b )		make_pair( (a), (b) )
#define fi				first
#define se				second

template<class T>bool chmax( T& a, const T& b ) { if( a < b ) { a = b; return 1; } return 0; }
template<class T>bool chmin( T& a, const T& b ) { if( a > b ) { a = b; return 1; } return 0; }

const int INF = 1e9;
const int MOD = 1e9 + 7;

signed main() {
	int N, M; cin >> N >> M;

	int a, b, amax = 0, bmin = INF,res = 0;
	REP( i, M ) {
		cin >> a >> b;
		chmax( amax, a );
		chmin( bmin, b );
	}

	res = bmin - amax;
	if( res >= 0 ) res + 1;
	chmin( res, N );
	chmax( res, int(0) );

	cout << res << endl;

}

Compiler output:
a.cc: In function 'int main()':
a.cc:4:41: error: expected primary-expression before 'long'
    4 | #define int                             long long
      |                                         ^~~~
a.cc:35:21: note: in expansion of macro 'int'
   35 |         chmax( res, int(0) );
      |                     ^~~
Language: Java

import java.util.*;

public class Main{
	public static void main(String[] args){
    	Scanner scan = new Scanner(System.in);
      	int N = scan.nextInt();
      	int M = scan.nextInt();
      	int[] L = new int[M];
      	int[] R = new int[M];
      	int[] counter = new int[L];
      	for(int i = 0; i < M; i++){
        	L[i] = scan.nextInt();
          	R[i] = scan.nextInt();
          	for(int j= L[i]; j <= R[i]; j++){
            	counter[j]++;
            }
        }
      	int ans = 0;
      	for(int k = 0; k < M; k++){
        	if(counter[k] == N){
            	ans++;
            }
        }
      	System.out.print(ans);
      	
    }
}

Compiler output:
Main.java:10: error: incompatible types: int[] cannot be converted to int
      	int[] counter = new int[L];
      	                        ^
1 error
Language: Java

import java.util.Scanner;
class Main {
  public static void main(String[] args) {
    Scanner sc = new Scanner();
    int cardNum = Integer.parseInt(sc.next());
    int gateNum = Integer.parseInt(sc.next());
    int min = 0;
    int max = 0;
    
    min = Integer.parseInt(sc.next());
    max = Integer.parseInt(sc.next());
   
    for(int gtn = 1; gtn < gateNum; gtn++){
      mint = Integer.parseInt(sc.next());
      if(min < mint) min = mint;
      maxt = Integer.parseInt(sc.next());
      if(max > maxt) max = maxt;
	}
    
    int counter = 0;
    for(int i = 0; i < cardNum; i++) {
      if(i >= min && i <= max) counter++; 
    }
    System.out.println(counter);
}

Compiler output:
Main.java:25: error: reached end of file while parsing
}
 ^
1 error
Language: C++

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

int main() {
  int64_t N,M;
  cin >> N >>M;

  vector<int64_t> L(M);
  vector<int64_t> R(M);

  cin >> L.at(0) >> R.at(0);

  int64_t L_max,R_min;

  if(M==1){
    cout << R.at(0)-L.at(0)+1 <<endl;
  } 
  else{
  for(int i=1;i<M;i++){
    cin >> L.at(i) >> R.at(i);
    if(i==1){
      L_max=max(L.at(i),L.at(0));
      R_min=min(R.at(i),R.at(0));
    }
    L_max=max(L.at(i),L_max);
    R_min=min(R.at(i),R_min);


    if(R_min<L_max){
      cout << 0 <<endl;
      break;
    }
    if(i==(M-1)){
        cout << R_min-L_max+1 << endl;
    }
  } 


  } 




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

int main() {
  int64_t N,M;
  cin >> N >>M;

  vector<int64_t> L(M);
  vector<int64_t> R(M);

  cin >> L.at(0) >> R.at(0);

  int64_t L_max,R_min;

  if(M==1){
    cout << R.at(0)-L.at(0)+1 <<endl;
  } 
  else{
  for(int i=1;i<M;i++){
    cin >> L.at(i) >> R.at(i);
    if(i==1){
      L_max=max(L.at(i),L.at(0));
      R_min=min(R.at(i),R.at(0));
    }
    L_max=max(L.at(i),L_max);
    R_min=min(R.at(i),R_min);


    if(R_min<L_max){
      cout << 0 <<endl;
      break;
    }
    if(i==(M-1)){
        cout << R_min-L_max+1 << endl;
    }
  } 


  } 




}

Compiler output:
a.cc:45:2: error: stray '#' in program
   45 | }#include <bits/stdc++.h>
      |  ^
a.cc:45:3: error: 'include' does not name a type
   45 | }#include <bits/stdc++.h>
      |   ^~~~~~~
a.cc:49:5: error: redefinition of 'int main()'
   49 | int main() {
      |     ^~~~
a.cc:5:5: note: 'int main()' previously defined here
    5 | int main() {
      |     ^~~~
Language: C++

#include<iostream>
#include <string.h>
#include <algorithm>
#include <string>
#include <math.h>
typedef long long ll;
using namespace std;

double gcd( double m, double n )
{
	// 引数に０がある場合は０を返す
	if ( ( 0 == m ) || ( 0 == n ) )
		return 0;
	
    double p=0;
	// ユークリッドの方法
	while( m > n )
	{
        m = m/2;
        p+=1;
	}
	return p;
}//gcd

int main()
{
    ll n,m,max=100000,min = 0,ans;
    cin >> n >> m ;

    for(int i = 0; i < m; i++)
    {
        int p = 0,q = 0;
        cin >> p >> q;
        if(min <= p)
        {
            min = p;
        }
        if(q <= max)
        {
            max = q;
        }

    }
    ans = max-min+1;
    if(ans <= 0)
    {
        ans = 0
        cout << ans;
    }else{
        cout << ans;
    }
   


    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:47:16: error: expected ';' before 'cout'
   47 |         ans = 0
      |                ^
      |                ;
   48 |         cout << ans;
      |         ~~~~
Language: C

#include<stdio.h>
int main(void){
	int n, m;
  int min, max;
  
  scanf("%d %d", &n, &m);
  
  int r[m][2];
  
  for(int i = 0; i < m; i++){
  	for(int j = 0; j < 2; j++){
    	scanf("%d", r[i][j]);
    }
  }
  
    for(int i = 0; i < m; i++){
  		if(i == 0){
        	min = r[i][1];
          	max = r[i][0];
        }
      	else{
        	if(min > r[i][1]){
            	min = r[i][1];
            }
          	if(max < r[i][0]){
            	max = r[i][0];
            }
        }
    }
  
  prinf("%d\n", (min - max) + 1);  
}

Compiler output:
main.c: In function 'main':
main.c:31:3: error: implicit declaration of function 'prinf'; did you mean 'printf'? [-Wimplicit-function-declaration]
   31 |   prinf("%d\n", (min - max) + 1);
      |   ^~~~~
      |   printf
Language: C

#include<stdio.h>
int main(void){
	int n, m;
  int min, max;
  
  scanf("%d %d", &n, &m);
  
  r[m][2];
  
  for(int i = 0; i < m; i++){
  	for(int j = 0; j < 2; j++){
    	scanf("%d", r[i][j]);
    }
  }
  
    for(int i = 0; i < m; i++){
  		if(i == 0){
        	min = r[i][1];
          	max = r[i][0];
        }
      	else{
        	if(min > r[i][1]){
            	min = r[i][1];
            }
          	if(max < r[i][0]){
            	max = r[i][0];
            }
        }
    }
  
  prinf("%d\n", (min - max) + 1);  
}

Compiler output:
main.c: In function 'main':
main.c:8:3: error: 'r' undeclared (first use in this function)
    8 |   r[m][2];
      |   ^
main.c:8:3: note: each undeclared identifier is reported only once for each function it appears in
main.c:31:3: error: implicit declaration of function 'prinf'; did you mean 'printf'? [-Wimplicit-function-declaration]
   31 |   prinf("%d\n", (min - max) + 1);
      |   ^~~~~
      |   printf
Language: C++

#include <bits/stdc++.h>
using namespace std;
#define INF 2147483647
#define INFF 9223372036854775807
#define ll long long
#define REP(i,n) for(int i=0;i<n;i++)
#define REPP(i,m,n) for(int i=m;i<n;i++)
#define ALL(N) (N.begin(),N.end())
#define de cout << "debug" << endl;
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 N,M;
    cin >> N >> M;
    vector<int> V(N);
    int L[100100],R[100010];
    int Lans = 0;,Rans = INF;
    REP(i,M){
        cin >> L[i] >> R[i];
        Lans = max(Lans,L[i]); Rans = min(Rans,R[i]);
        if(Lans > R[i] || Rans < L[i]){
            cout << 0 << endl;
            return 0;
        }
    }
    cout << Rans - Lans +1 << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:21:18: error: expected primary-expression before ',' token
   21 |     int Lans = 0;,Rans = INF;
      |                  ^
a.cc:21:19: error: 'Rans' was not declared in this scope; did you mean 'Lans'?
   21 |     int Lans = 0;,Rans = INF;
      |                   ^~~~
      |                   Lans
Language: Java

import java.util.Scanner;



public class C{

  public static void main(String[] args) {
    Scanner scanner = new Scanner(System.in);
    int n=scanner.nextInt();
    int m=scanner.nextInt();
    int num=0;


    //int[] ans=new int[n+1];

    int l=scanner.nextInt();
    int r=scanner.nextInt();

    for(int i=1;i<m;i++){
      int ll=scanner.nextInt();
      int rr=scanner.nextInt();
      if(ll>l){
        l=ll;
      }
      if(rr<r){
        r=rr;
      }
    }

    num=r-l+1;
    if(num<0){
      num=0;
    }

    System.out.println(num);
    //System.out.printf("%.12f\n",ans);
  }
}


Compiler output:
Main.java:5: error: class C is public, should be declared in a file named C.java
public class C{
       ^
1 error
Language: C++

#include <iostream>
using namespace std;

int main()
{
	int n, m;
	cin >> n >> m;

	int l, r;
	int lmax = INT_MIN;
	int rmin = INT_MAX;
	for (int i = 0; i < m; ++i) {
		cin >> l >> r;
		if (lmax < l) {
			lmax = l;
		}
		if (r < rmin) {
			rmin = r;
		}
	}

	int result = rmin - lmax + 1;
	if (result < 0) {
		result = 0;
	}

	cout << result << endl;

	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:10:20: error: 'INT_MIN' was not declared in this scope
   10 |         int lmax = INT_MIN;
      |                    ^~~~~~~
a.cc:2:1: note: 'INT_MIN' is defined in header '<climits>'; this is probably fixable by adding '#include <climits>'
    1 | #include <iostream>
  +++ |+#include <climits>
    2 | using namespace std;
a.cc:11:20: error: 'INT_MAX' was not declared in this scope
   11 |         int rmin = INT_MAX;
      |                    ^~~~~~~
a.cc:11:20: note: 'INT_MAX' is defined in header '<climits>'; this is probably fixable by adding '#include <climits>'
Language: C++

#include <iostream>
#include <cstdio>
#include <vector>

using namespace std;

int main() {
    int n, m;
    vector<int> l, r;
    
    cin >> n >> m;
    
    int li, ri;
    for (int i = 0; i < m; i++) {
        cin >> li >> ri;
        l.push_back(li);
        r.push_back(ri);
    }
    
    int lmax = * max_element(l.begin(), l.end());
    int rmin = * min_element(r.begin(), r.end());
    
    int ans = rmin - lmax + 1;
    cout << ans << endl;

    return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:20:18: error: 'max_element' was not declared in this scope
   20 |     int lmax = * max_element(l.begin(), l.end());
      |                  ^~~~~~~~~~~
a.cc:21:18: error: 'min_element' was not declared in this scope
   21 |     int rmin = * min_element(r.begin(), r.end());
      |                  ^~~~~~~~~~~
Language: Java

import java.util.Scanner;



public class C{

  public static void main(String[] args) {
    Scanner scanner = new Scanner(System.in);
    int n=scanner.nextInt();
    int m=scanner.nextInt();
    int num=0;


    //int[] ans=new int[n+1];

    int l=scanner.nextInt();
    int r=scanner.nextInt();

    for(int i=1;i<m;i++){
      int ll=scanner.nextInt();
      int rr=scanner.nextInt();
      if(ll>l){
        l=ll;
      }
      if(rr<r){
        r=rr;
      }
    }

    int num=r-l+1;
    if(num<0){
      num=0;
    }

    System.out.println();
    //System.out.printf("%.12f\n",ans);
  }
}


Compiler output:
Main.java:5: error: class C is public, should be declared in a file named C.java
public class C{
       ^
Main.java:30: error: variable num is already defined in method main(String[])
    int num=r-l+1;
        ^
2 errors
Language: Java

import java.util.Scanner;



public class Main{

  public static void main(String[] args) {
    Scanner scanner = new Scanner(System.in);
    int n=scanner.nextInt();
    int m=scanner.nextInt();
    int num=0;


    //int[] ans=new int[n+1];

    int l=scanner.nextInt();
    int r=scanner.nextInt();

    for(int i=1;i<m;i++){
      int ll=scanner.nextInt();
      int rr=scanner.nextInt();
      if(ll>l){
        l=ll;
      }
      if(rr<r){
        r=rr;
      }
    }

    int num=r-l+1;
    if(num<0){
      num==0;
    }

    System.out.println();
    //System.out.printf("%.12f\n",ans);
  }
}


Compiler output:
Main.java:32: error: not a statement
      num==0;
         ^
1 error
Language: C++

#include <iostream>
using namespace std;

int main(){
    int N,M;
    cin >> N >> M;
    
    int L[100001];
    int R[100001];
    for(int i = 0;i < M;i++){
        cin >> L[i] >> R[i];
    }
    
    sort(L,L + M);
    sort(R,R + M);
    
    if(R[0] - L[M - 1] >= 0) cout << R[0] - L[M - 1] + 1 << endl;
    else cout << 0 << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:14:5: error: 'sort' was not declared in this scope; did you mean 'short'?
   14 |     sort(L,L + M);
      |     ^~~~
      |     short
Language: C++

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

typedef long long ll;
typedef unsigned short int unsi;
typedef unsigned int uni;
typedef unsigned long int unli;

using namespace std;

unsi gojoho(unsi A, unsi B) {
	unsi R = 1;
	if (A > B) {
		while (R!=0) {
			R = A % B;
			A = B;
			B = R;
		}
		return A;
	} else {
		while (R != 0) {
			R = B % A;
			B = A;
			A = R;
		}
		return B;
	}
}

uni gojoho(uni A, uni B) {
	uni R = 1;
	if (A > B) {
		while (R != 0) {
			R = A % B;
			A = B;
			B = R;
		}
		return A;
	} else {
		while (R != 0) {
			R = B % A;
			B = A;
			A = R;
		}
		return B;
	}
}

unli gojoho(unli A, unli B) {
	unli R = 1;
	if (A > B) {
		while (R != 0) {
			R = A % B;
			A = B;
			B = R;
		}
		return A;
	} else {
		while (R != 0) {
			R = B % A;
			B = A;
			A = R;
		}
		return B;
	}
}

int gojoho(int A, int B) {
	int R = 1;
	if (A > B) {
		while (R != 0) {
			R = A % B;
			A = B;
			B = R;
		}
		return A;
	} else {
		while (R != 0) {
			R = B % A;
			B = A;
			A = R;
		}
		return B;
	}
}



int main(){
	int N, M;
	int L_in;
	int R_in;
	int L_max = 0;
	int R_min = 100000;

	scanf("%d%d", &N, &M);
	
	for (int i = 1; i <= M; i++) {
		scanf("%d%d", &L_in, &R_in);
		if (L_in > L_max) {
			L_max = L_in;
		}
		if (R_in < R_min) {
			R_min = R_in;
		}
	}
	if (R_min < L_max) {
		printf("%d", 0);
	}else {
		printf("%d", R_min - L_max + 1);
	}
	


Compiler output:
a.cc: In function 'int main()':
a.cc:113:10: error: expected '}' at end of input
  113 |         }
      |          ^
a.cc:91:11: note: to match this '{'
   91 | int main(){
      |           ^
Language: C++

#include<iostream>
using namespace std;
int main()
{
	int n,m,p=0;
    cin>>n>>m;
    int a[m],b[m];
    for(int i=0;i<m;i++)
    {
    	cin>>a[i]>>b[i];
	}
	for(int i=0;i<m;i++)
	{
		int y=1;
		if(a[i]>n||b[i]>n)
		{
			y=0;
		}
		if(i<m-1)
		{
			if(a[i+1]>n)
			y=0;
		}
		ans+=y;
	}
	cout<<ans<<endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:24:17: error: 'ans' was not declared in this scope; did you mean 'abs'?
   24 |                 ans+=y;
      |                 ^~~
      |                 abs
a.cc:26:15: error: 'ans' was not declared in this scope; did you mean 'abs'?
   26 |         cout<<ans<<endl;
      |               ^~~
      |               abs
Language: C++

#include<string>
#include <math.h>
using namespace std;
# define maxn 100000

int main(){
  int n,m,l[maxn],r[maxn],cnt(0),sum(0);
  cin>>n>>m;
  for(int i(0);i<m;i++){
    cin>>l[i]>>r[i];
  }
  int sl=l[0],sr=r[0];
  for(int i(1);i<m;i++){
    sl=max(sl,l[i]);
    sr=min(sr,r[i]);
  }
  if (sr - sl>=0){
    cout<<sr-sl+1;
  }else{
    cout<<0;
  }
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:8:3: error: 'cin' was not declared in this scope
    8 |   cin>>n>>m;
      |   ^~~
a.cc:3:1: note: 'std::cin' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
    2 | #include <math.h>
  +++ |+#include <iostream>
    3 | using namespace std;
a.cc:18:5: error: 'cout' was not declared in this scope
   18 |     cout<<sr-sl+1;
      |     ^~~~
a.cc:18:5: 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<<0;
      |     ^~~~
a.cc:20:5: note: 'std::cout' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
Language: C++

#include <iostream>
#include <cstdio>
#include <cmath>
#include <algorithm>
#include <vector>
using namespace std;
typedef long long ll;
int main(void){
	ll i,n,m,l,r,lma=0,rmi=100000;
	cin>>n>>m;
	for(i=0;i<m;i++){
		cin>>l>>r;
		lma=max(l,lma);
		rmi=min(rmi,r);
	}
	cout<<max(0,rmi-lma+1)<<endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:16:18: error: no matching function for call to 'max(int, ll)'
   16 |         cout<<max(0,rmi-lma+1)<<endl;
      |               ~~~^~~~~~~~~~~~~
In file included from /usr/include/c++/14/string:51,
                 from /usr/include/c++/14/bits/locale_classes.h:40,
                 from /usr/include/c++/14/bits/ios_base.h:41,
                 from /usr/include/c++/14/ios:44,
                 from /usr/include/c++/14/ostream:40,
                 from /usr/include/c++/14/iostream:41,
                 from a.cc:1:
/usr/include/c++/14/bits/stl_algobase.h:257:5: note: candidate: 'template<class _Tp> constexpr const _Tp& std::max(const _Tp&, const _Tp&)'
  257 |     max(const _Tp& __a, const _Tp& __b)
      |     ^~~
/usr/include/c++/14/bits/stl_algobase.h:257:5: note:   template argument deduction/substitution failed:
a.cc:16:18: note:   deduced conflicting types for parameter 'const _Tp' ('int' and 'll' {aka 'long long int'})
   16 |         cout<<max(0,rmi-lma+1)<<endl;
      |               ~~~^~~~~~~~~~~~~
/usr/include/c++/14/bits/stl_algobase.h:303:5: note: candidate: 'template<class _Tp, class _Compare> constexpr const _Tp& std::max(const _Tp&, const _Tp&, _Compare)'
  303 |     max(const _Tp& __a, const _Tp& __b, _Compare __comp)
      |     ^~~
/usr/include/c++/14/bits/stl_algobase.h:303:5: note:   candidate expects 3 arguments, 2 provided
In file included from /usr/include/c++/14/algorithm:61,
                 from a.cc: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:16:18: note:   mismatched types 'std::initializer_list<_Tp>' and 'int'
   16 |         cout<<max(0,rmi-lma+1)<<endl;
      |               ~~~^~~~~~~~~~~~~
Language: C++


#include <iostream>
#include<algorithm>
using namespace std;
int main()
{
	int L[100001], R[100001];
	int N, M;
	while (cin >> N >> M)
	{
		int Lt, Rt;
		memset(L, 0, sizeof(L));	memset(R, 0, sizeof(R));
		for (int i = 1; i <= M; i++)
		{
			cin >> Lt >> Rt;
			L[Lt]++;
			R[Rt]++;
		}
		int it = 0,cnt=0;
		for (int i = 1; i <= N; i++)
		{
			it += L[i];
			cnt += (it == M);
			it -= R[i];
		}
		cout << cnt<<'\n';
	}
}



Compiler output:
a.cc: In function 'int main()':
a.cc:12:17: error: 'memset' was not declared in this scope
   12 |                 memset(L, 0, sizeof(L));        memset(R, 0, sizeof(R));
      |                 ^~~~~~
a.cc:4:1: note: 'memset' is defined in header '<cstring>'; this is probably fixable by adding '#include <cstring>'
    3 | #include<algorithm>
  +++ |+#include <cstring>
    4 | using namespace std;