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

#include<iostream>
using namespace std;
int main()
{
int n, m, l, r, c, count;
cin >> n >> m;
c = 0;
count = 0;
for (int j = 1; j <= n; j++) {

for (int i = 1; i <= m; i++) {
cin >> l >> r;
if (j < l && j > r) break
else c = c + 1;
}

if (c == m) count = count + 1;
c = 0;
}
printf("%d\n", count);
}

Compiler output:
a.cc: In function 'int main()':
a.cc:13:26: error: expected ';' before 'else'
   13 | if (j < l && j > r) break
      |                          ^
      |                          ;
   14 | else c = c + 1;
      | ~~~~
Language: C++

#include<iostream>
using namespace std;
int main()
{
int n, m, l, r, c, count;
cin >> n >> m >> l >> r;
c = 0;
count = 0;
for (int j = 1; j <= n; j++){
for (int i = 1; i <= m; i++) if (i >= l && i <= r) c = c + 1;
if (c == m) count = count + 1;
c = 0;
}
printf("%d\n", count);

Compiler output:
a.cc: In function 'int main()':
a.cc:14:23: error: expected '}' at end of input
   14 | printf("%d\n", count);
      |                       ^
a.cc:4:1: note: to match this '{'
    4 | {
      | ^
Language: C++

#include<iostream>
using namespace std;
int main()
{
int n, m, l, r, c;
cin >> n >> m >> l >> r;
c = 0;
count = 0;
for (int j = 1; j <= n; j++){
for (int i = 1; i <= m; i++) if (i >= l && i <= r) c = c + 1;
if (c == m) count = count + 1;
c = 0;
}
printf("%d\n", count);


Compiler output:
a.cc: In function 'int main()':
a.cc:8:1: error: 'count' was not declared in this scope
    8 | count = 0;
      | ^~~~~
a.cc:14:23: error: expected '}' at end of input
   14 | printf("%d\n", count);
      |                       ^
a.cc:4:1: note: to match this '{'
    4 | {
      | ^
Language: Java

import java.util.*;

public class c{
  public static void main(String[] args) {

    Scanner sc = new Scanner(System.in);
    int n, m;
    n = sc.nextInt();
    m = sc.nextInt();

    int x, y, l, r;
    l = 0;
    r = (int)1E5 + 10;

    for (int i = 0; i < m; i++) {
      x = sc.nextInt();
      y = sc.nextInt();
      l = Math.max(x, l);
      r = Math.min(y, r);
    }

    System.out.println(r - l + 1);
  }
}


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

#include<bits/stdc++.h>
using namespace std;
struct gates{
	int b;
	int e;
}s[100010];
int main(){
	int n,m;
	cin>>n>>m;
	int maxb=0,min=10000090;
	for(int i=0;i<m;i++){
		cin>>s[i].b>>s[i].e;
		if(s[i].b>maxb){
			maxb=s[i].b;
		}
		if(s[i].e<mine){
			mine =s[i].e;
		}
	}
	if(mine-maxb+1>0)cout<<mine-maxb+1<<endl;
	else cout<<'0'<<endl;
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:16:27: error: 'mine' was not declared in this scope; did you mean 'min'?
   16 |                 if(s[i].e<mine){
      |                           ^~~~
      |                           min
a.cc:20:12: error: 'mine' was not declared in this scope; did you mean 'min'?
   20 |         if(mine-maxb+1>0)cout<<mine-maxb+1<<endl;
      |            ^~~~
      |            min
Language: C++

#include <stdio.h>
#include <iostream>
#include <algorithm>

using namespace std;

#define rep(i, n) for(int i = 0; i < n ; i++)
#define For(i, a, b) for(int i = (a) ; i < (b); i++)

int main(void){
    int N, M;
    int L, R;

    scanf("%d %d", &N, &M);

    int L_max = 0;
    int R_min = N;
  
    rep(i, M){
        int L, R;
     	scanf("%d %d", &L, &R);
    	L_max = max(L[i], L_max);
        R_min = min(R[i], R_min);
    }

    cout << max(0, R_min - L_max + 1) << endl;

    return 0;

    }

Compiler output:
a.cc: In function 'int main()':
a.cc:22:22: error: invalid types 'int[int]' for array subscript
   22 |         L_max = max(L[i], L_max);
      |                      ^
a.cc:23:22: error: invalid types 'int[int]' for array subscript
   23 |         R_min = min(R[i], R_min);
      |                      ^
Language: C++

#include <iostream>
 
using namespace std;
 
int A[100001];
 
int main() {
  int n, m;
  cin >> n >> m;
  for(int i=0;i<m;i++) {
    int l, r;
    cin >> l >> r;
    A[l-1]++;
    A[r]--;
  }
  int cnt = 0;
  for(int i=0;i<n;i++) if(A[i]==m) cnt++;
  cout << cnt << "\n";
  return 0;
}
#include <iostream>

using namespace std;

int A[100001];

int main() {
  int n, m;
  cin >> n >> m;
  for(int i=0;i<m;i++) {
    int l, r;
    cin >> l >> r;
    A[l-1]++;
    A[r]--;
  }
  int hgt = 0;
  int cnt = 0;
  for(int i=0;i<n;i++) {
   	hgt += A[i];
    if(hgt==m) cnt++;
  }
  cout << cnt << "\n";
  return 0;
}

Compiler output:
a.cc:25:5: error: redefinition of 'int A [100001]'
   25 | int A[100001];
      |     ^
a.cc:5:5: note: 'int A [100001]' previously declared here
    5 | int A[100001];
      |     ^
a.cc:27:5: error: redefinition of 'int main()'
   27 | int main() {
      |     ^~~~
a.cc:7:5: note: 'int main()' previously defined here
    7 | int main() {
      |     ^~~~
Language: C++

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

int main(){
  int l,r,len; cin >> l >> r;
  vector<vector<int>> lr;
  vector<vector<int>> sa;
  for(int i=0; i < r; i++){
    cin >> lr[i][0] >> lr[i][1];
    len = lr[i][1] - lr[i][0];
    for(int j=0; j<=len; j++){
      sa[i][j] = lr[i][0] + j;
    }
  }
  int gate=0,a=0;
  for(int i=0; i<lr[0][1]-lr[0][0]; i++){
    for(int k=1; k<r; k++){
   		for(int j=0; j<lr[j][1]-lr[j][0]; j++){
          if(sa[0][i] == sa[k][j]{
            a++;
            break;
          }
       }
    }
    if(a == r-1) gate++;
    a=0;
  }
  cout << gate << endl;
}
            
      
    
  
  

Compiler output:
a.cc: In function 'int main()':
a.cc:19:34: error: expected ')' before '{' token
   19 |           if(sa[0][i] == sa[k][j]{
      |             ~                    ^
      |                                  )
a.cc:23:8: error: expected primary-expression before '}' token
   23 |        }
      |        ^
Language: C++

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

int main(){
  int l,r; cin >> l >> r;
  vector<vector<int>> lr;
  vector<vector<int>> sa;
  for(int i=0; i < r; i++){
    cin >> lr[i][0] >> lr[i][1];
    len = lr[i][1] - lr[i][0];
    for(int j=0; j<len; j++){
      sa[i][j] = lr[i][0] + 1;
    }
  }
  int gate=0;
  for(int i=0; i<lr[0][1]-lr[0][0]; i++){
    for(int k=1; k<r; k++){
   		for(int j=1; j<lr[j][1]-lr[j][0]; j++){
          if(sa[0][i]!= sa[k][j])
            break;
        }
    }
    gate++;
  }
  cout << gate << endl;
}
            
      
    
  
  

Compiler output:
a.cc: In function 'int main()':
a.cc:10:5: error: 'len' was not declared in this scope
   10 |     len = lr[i][1] - lr[i][0];
      |     ^~~
Language: C++

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

int main(){
  int l,r; cin >> l >> r;
  vector<vector<int>> lr;
  vector<vector<int>> sa;
  for(int i=0; i < r; i++){
    cin >> lr[i][0] >> lr[i][1];
    len = lr[i][1] - lr[i][0];
    for(int j=0; j<len; j++){
      sa[i][j] = lr[i][0] + 1;
    }
  }
  int gate=0;
  for(int i=0; i<lr[0][1]-lr[0][0]; i++){
    for(int k=1; k<r; k++){
   		for(int j=1; j<lr[j][1]-lr[j][0]){
          if(sa[0][i]!= sa[k][j])
            break;
        }
    }
    gate++;
  }
  cout << gate << endl;
}
            
      
    
  
  

Compiler output:
a.cc: In function 'int main()':
a.cc:10:5: error: 'len' was not declared in this scope
   10 |     len = lr[i][1] - lr[i][0];
      |     ^~~
a.cc:18:49: error: expected ';' before ')' token
   18 |                 for(int j=1; j<lr[j][1]-lr[j][0]){
      |                                                 ^
      |                                                 ;
Language: C++

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

int main(){
  in l,r; cin >> l >> r;
  vector<vector<int>> lr;
  vector<vector<int>> sa;
  for(int i=0; i < r; i++){
    cin >> lr[i][0] >> lr[i][1];
    len = lr[i][1] - lr[i][0];
    for(int j=0; j<len; j++){
      sa[i][j] = lr[i][0] + 1;
    }
  }
  int gate=0;
  for(int i=0; i<lr[0][1]-lr[0][0]; i++){
    for(int k=1; k<r; k++){
   		for(int j=1; j<lr[j][1]-lr[j][0]){
          if(sa[0][i]!= sa[k][j])
            break;
        }
    }
    gate++;
  }
  cout << gate << endl;
}
            
      
    
  
  

Compiler output:
a.cc: In function 'int main()':
a.cc:5:3: error: 'in' was not declared in this scope; did you mean 'yn'?
    5 |   in l,r; cin >> l >> r;
      |   ^~
      |   yn
a.cc:5:18: error: 'l' was not declared in this scope
    5 |   in l,r; cin >> l >> r;
      |                  ^
a.cc:5:23: error: 'r' was not declared in this scope
    5 |   in l,r; cin >> l >> r;
      |                       ^
a.cc:10:5: error: 'len' was not declared in this scope
   10 |     len = lr[i][1] - lr[i][0];
      |     ^~~
a.cc:18:49: error: expected ';' before ')' token
   18 |                 for(int j=1; j<lr[j][1]-lr[j][0]){
      |                                                 ^
      |                                                 ;
Language: C++

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

int main(){
  inr l,r; cin >> l >> r;
  vector<vector<int>> lr;
  vector<vector<int>> sa;
  for(int i=0; i < r; i++){
    cin >> lr[i][0] >> lr[i][1];
    len = lr[i][1] - lr[i][0];
    for(int j=0; j<len; j++){
      sa[i][j] = lr[i][0] + 1;
    }
  }
  int gate=0;
  for(int i=0; i<lr[0][1]-lr[0][0]; i++){
    for(int k=1; k<r; k++){
   		for(int j=1; j<lr[j][1]-lr[j][0]){
          if(sa[0][i]!= sa[k][j])
            break;
        }
    }
    gate++;
  }
  cout << gate << endl;
}
            
      
    
  
  

Compiler output:
a.cc: In function 'int main()':
a.cc:5:3: error: 'inr' was not declared in this scope; did you mean 'int'?
    5 |   inr l,r; cin >> l >> r;
      |   ^~~
      |   int
a.cc:5:19: error: 'l' was not declared in this scope
    5 |   inr l,r; cin >> l >> r;
      |                   ^
a.cc:5:24: error: 'r' was not declared in this scope
    5 |   inr l,r; cin >> l >> r;
      |                        ^
a.cc:10:5: error: 'len' was not declared in this scope
   10 |     len = lr[i][1] - lr[i][0];
      |     ^~~
a.cc:18:49: error: expected ';' before ')' token
   18 |                 for(int j=1; j<lr[j][1]-lr[j][0]){
      |                                                 ^
      |                                                 ;
Language: Java

import java.util.*;
 
public class a {
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
        int N = sc.nextInt();
        int M = sc.nextInt();
        int[] ar = new int[N+1];
        for(int i = 0; i<M; i++){
            int l = sc.nextInt()-1;
            int r = sc.nextInt();
            ar[l]++;
            ar[r]--;
        }
        int cnt  = 0;
        if(ar[0] == M) cnt++;
        for(int i = 1; i<N+1; i++){
            ar[i]+=ar[i-1];
            if(ar[i] == M) cnt++;
        }
        System.out.println(cnt);
    }
}

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

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

int main() {
	int N, M; cin >> N >> M;
	int arrL[M], arrR[M];
	for(int i = 0; i < M; ++i) {
    	int L, R; cin >> L >> R;
		arrL[i] = L; arrR[i] = R;
    }
	int ans = *min_element(arrR, arrR+M) - *max_element(arrL, arrL+M) + 1;
	cout << (ans < 0) ? 0 : ans << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:12:37: error: invalid operands of types 'int' and '<unresolved overloaded function type>' to binary 'operator<<'
   12 |         cout << (ans < 0) ? 0 : ans << endl;
      |                                 ~~~~^~~~~~~
Language: C++

#include <iostream>
#include <algorithm>
int main(){
  //NとMの値を初期化
  int N =0, M = 0;
  std::cin >> N >> M;

  int ans = 0;
  int L = 0
  int R = 0;
  int L_max = N
  int R_min = M;

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


Compiler output:
a.cc: In function 'int main()':
a.cc:10:3: error: expected ',' or ';' before 'int'
   10 |   int R = 0;
      |   ^~~
a.cc:12:3: error: expected ',' or ';' before 'int'
   12 |   int R_min = M;
      |   ^~~
a.cc:16:22: error: 'R' was not declared in this scope
   16 |     std::cin >> L >> R;
      |                      ^
a.cc:18:5: error: 'R_min' was not declared in this scope
   18 |     R_min = std::min(R_min,R);
      |     ^~~~~
a.cc:20:7: error: 'R_min' was not declared in this scope
   20 |   if( R_min >= L_max )
      |       ^~~~~
Language: C++

#include<bits/stdc++.h>
using namespace std;
int n,m;
int L[10010]={};
int R[100010]={};
int ma,mi,id;
int main(){int main(){
cin>>n>>m;
for(int i=0;i<m;i++){
cin>>L[i];
cin>>R[i];
ma=L[0];
mi=R[0];
if(ma<L[i]){ma=L[i];}
if(mi>R[i]){mi=R[i];}

}
id=mi-ma+1;
cout<<id<<endl;
return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:7:20: warning: empty parentheses were disambiguated as a function declaration [-Wvexing-parse]
    7 | int main(){int main(){
      |                    ^~
a.cc:7:20: note: remove parentheses to default-initialize a variable
    7 | int main(){int main(){
      |                    ^~
      |                    --
a.cc:7:20: note: or replace parentheses with braces to value-initialize a variable
a.cc:7:22: error: a function-definition is not allowed here before '{' token
    7 | int main(){int main(){
      |                      ^
a.cc:21:2: error: expected '}' at end of input
   21 | }
      |  ^
a.cc:7:11: note: to match this '{'
    7 | int main(){int main(){
      |           ^
Language: C++

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

int main ()
{
    int n,m;
    vector<pair<pair<int,bool>,int> > v;
    vector<bool> checked;
    checked.resize(m);
    for(int i = 0 ; i < checked.size() ; i++)
    {
        checked[i]=false;
    }
    for(int i = 0 ; i < m ; i ++)
    {
        int a,b;
        cin >> a >> b;
        v.push_back(make_pair(make_pair(a,0),i));
        v.push_back(make_pair(make_pair(b,1),i));
    }
    
    int result=0;
    
    sort(v.begin(),v.end());
    stack<int> s;
    for(int i =0 ; i < v.size() ; i++)
    {
        pair<pair<int,bool>,int> data=v[i];
        int id=data.second.second;
        bool state = data.first.second;
        if(state==0)
        {
            s.push(id);
        }
        else if(state==1 && !s.empty())
        {
            result++;
            while(!s.empty())
            {
                int a=s.top();
                s.pop();
                checked[a]=true;
                
            }
        }
    }
    cout << result << endl;
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:29:28: error: request for member 'second' in 'data.std::pair<std::pair<int, bool>, int>::second', which is of non-class type 'int'
   29 |         int id=data.second.second;
      |                            ^~~~~~
Language: C++

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

int main ()
{
    int n,m;
    vector<pair<pair<int,bool>,int> > v;
    int vector<bool> checked;
    checked.resize(m);
    for(int i = 0 ; i < checked.size() ; i++)
    {
        checked[i]=false;
    }
    for(int i = 0 ; i < m ; i ++)
    {
        int a,b;
        cin >> a >> b;
        v.push_back(make_pair(make_pair(a,0),i));
        v.push_back(make_pair(make_pair(b,1),i));
    }
    
    int result=0;
    
    sort(v.begin(),v.end());
    stack<int> s;
    for(int i =0 ; i < v.size() ; i++)
    {
        pair<pair<int,bool>,int> data=v[i];
        int id=data.second.second;
        bool state = data.first.second;
        if(state==0)
        {
            s.push(id);
        }
        else if(state==1 && !s.empty())
        {
            result++;
            while(!s.empty())
            {
                int a=s.top();
                s.pop();
                checked[a]=true;
                
            }
        }
    }
    cout << result << endl;
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:8:22: error: invalid declarator before 'checked'
    8 |     int vector<bool> checked;
      |                      ^~~~~~~
a.cc:9:5: error: 'checked' was not declared in this scope
    9 |     checked.resize(m);
      |     ^~~~~~~
a.cc:29:28: error: request for member 'second' in 'data.std::pair<std::pair<int, bool>, int>::second', which is of non-class type 'int'
   29 |         int id=data.second.second;
      |                            ^~~~~~
Language: C++

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

int main() {
  int cardNum, gateNum;
  cin >> cardNum >> gateNum;
  vector<vector<int>> gates(gateNum);
  for(int i=0; i<gateNum; i++){
    int l, r;
    cin >> l >> r;
    gates[i].push_back(l);
    gates[i].push_back(r);
  }
  
  int counter = 0;
  for(int i=0; i<cardNum; i++){
    int gateCounter = 0;
    for(int j=0; j<gateNum; j++){
      if(gate[j][0] <= i && gate[j][1] >= i) 
        gateCounter++;
    }
    if(gateCounter == gateNum){
      counter++;
    }
  }
  cout << counter;
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:20:10: error: 'gate' was not declared in this scope; did you mean 'gates'?
   20 |       if(gate[j][0] <= i && gate[j][1] >= i)
      |          ^~~~
      |          gates
Language: C++

#include <iostream>
#include <algorithm>
using namespace std;
int main(){
  int n, m, l, r, lmax=0, rmin;
  cin >> n >> m;
  rmin=n;
  for(i=0; i<m; i++){
    cin >> l >> r;
    if(l>lmax) lmax =l;
    if(r<rmin) rmin = r;
  }
  cout << rmin-lmax+1;
  return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:8:7: error: 'i' was not declared in this scope
    8 |   for(i=0; i<m; i++){
      |       ^
Language: C++

#include <iostream>
#include <math.h>
#include <numeric>
#include <vector>
#include <utility>
#include <algorithm>
#include <map>
#include <queue>
#include <queue>
#include <sstream>
#include <set>
typedef  long long ll;
const int dx[8]={1,0,-1,0,1,-1,-1,1};
const int dy[8]={0,1,0,-1,1,1,-1,-1};
const int dr[4] = {-1, 0, 1, 0};
const int dc[4] = { 0, 1, 0,-1};
const int INF = 1e9;
#define FOR(i, a, n) for(int i = (int)(a); i < (int)(n); ++i)
#define REP(i, n) FOR(i, 0, n)
#define SORT(a) sort(a.begin(),a.end())
#define REVERSE(a) reverse(a.begin(),a.end())
int guki (int a){
    if(a%2==0) return 0;
    else return 1;
}
int gcd(int a, int b){
    if(a%b==0){
        return b;
    }else{
        return (gcd(b,a%b));
    }
}
int lcm(int a, int b){
    int x = gcd(a,b);
    return (a*b/x);
}
using namespace std;
int main(){
    ll n,m;
    cin >> n >> m;

    ll Lmax = 0,Rmin = n;

    REP(i,m){
        ll a,b;
        cin >> a >> b;

        Lmax = max(Lmax,a);

        Rmin = min(Rmin,b);

    }
    if (Lmin <= Rmin)
    cout << Rmin - Lmax +1 <<endl;
    else cout << 0 << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:53:9: error: 'Lmin' was not declared in this scope; did you mean 'Rmin'?
   53 |     if (Lmin <= Rmin)
      |         ^~~~
      |         Rmin
Language: Java

import java.util.ArrayList;
import java.util.List;
import java.util.Scanner;

import static java.util.Collections.sort;
import static java.util.Collections.reverseOrder;

public class Main
	public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        int card = in.nextInt();
        int gate = in.nextInt();
        List<Integer> min = new ArrayList<Integer>(gate);
        List<Integer> max = new ArrayList<Integer>(gate);
        int cch;
        for (int i = 0; i < gate; i++) {
            for (int j = 0; j < 2; j++) {
                cch = in.nextInt();
                if (j == 0) {
                    min.add(cch);
                } else {
                    max.add(cch);
                }
            }
        }
        in.close();
        sort(max);
        sort(min, reverseOrder());
        int ans = max.get(0) - min.get(0) + 1;
        if (ans < 0) ans = 0;
        System.out.println(ans);
	}
}

Compiler output:
Main.java:8: error: '{' expected
public class Main
                 ^
Main.java:9: error: unnamed classes are a preview feature and are disabled by default.
	public static void main(String[] args) {
	              ^
  (use --enable-preview to enable unnamed classes)
Main.java:33: error: class, interface, enum, or record expected
}
^
3 errors
Language: C++

#include<iostream>
#include<vector>

using namespace std;

int main(){
  int n,m;
  int l,r;
  cin>>n>>m;
  vector<int> gate(n);
  for(int kk=0;kk<n;kk++){
    gate[kk]=0;
  }
  //vector<int> R(n);
  for(int i=0;i<m;i++){
    int tmpl=0;
    tmpr=100000;
    cin>>l>>r;
    if(tmpl<l){
      tmpl=l;
    }
    if(tmpr>r){
      tmpr=r;
    }
  }
  int ans=0;
  for(int k=l-1;k<r;k++){
    if(gate[k]==m){
      ans++;
    }
    //cout<<gate[k]<<endl;
  }
  ans=r-l+1;
  cout<<ans<<endl;
  return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:17:5: error: 'tmpr' was not declared in this scope; did you mean 'tmpl'?
   17 |     tmpr=100000;
      |     ^~~~
      |     tmpl
Language: C++

#include<iostream>
#include<cmath>
#include<algorithm>
#include <cassert>
#include<string>
#include<vector>
#include <utility>
#include <math.h>
#define INF 1000000000;
using namespace std;
int points[100009];
int allp;
pair<int, int>gate;
vector<int>counto;
int main() {
	int n = 0, m = 0;
	cin >> m;
	for (int i = 0; i < m; i++) {
		cin >> gate.first >> gate.second;
		points[gate.first]++;
		points[gate.second]++;
	}
	for (int i = 0; i < m; i++) {
		if (points[i] == m) {
			counto.push_back(i);
		}
	}
	if (counto.size == 2) {
		cout << counto[1] - counto[0] << endl;
		return 0;
	}
	if (counto.size) {
		cout << counto[0] << endl;
		return 0;
	}
	cout << '0' << endl;
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:28:20: error: invalid use of member function 'std::vector<_Tp, _Alloc>::size_type std::vector<_Tp, _Alloc>::size() const [with _Tp = int; _Alloc = std::allocator<int>; size_type = long unsigned int]' (did you forget the '()' ?)
   28 |         if (counto.size == 2) {
      |             ~~~~~~~^~~~
      |                        ()
a.cc:32:24: error: cannot convert 'std::vector<int>::size' from type 'std::vector<int>::size_type (std::vector<int>::)() const noexcept' {aka 'long unsigned int (std::vector<int>::)() const noexcept'} to type 'bool'
   32 |         if (counto.size) {
      |                        ^
Language: C

#include<bits/stdc++.h>
using namespace std;
int main(){
  int N,M,Max,Min;
  cin>>N>>M;
  vector<int> L(M),R(M);
  for(int i;i<M;i++){
    cin>>L.at(i);
    cin>>R.at(i);
  }
  Max=*max_element(L.begin(),L.end());
  Min=*min_element(R.begin(),R.end());
  cout<<Min-Max+1;
}

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

#include <iostream>
#include <cstdio>
#include <algorithm>
using namespace std;
struct gates
{
    int l;
    int r;
};
gates a[1000000];int n,m;
void readdata()
{
    cin>>n>>m;
    for (int i=1;i<=m;i++)
    {
        cin>>a[i].l>>a[i].r;
    }
}

bool comp(gates a, gates b)
{
    return a.r<b.r;
}

void solve()
{
    for (int i=2;i<=m;i++)
    {
        if (a[i].l<=a[i-1].r)
        {
            a[i].r=a[i-1].r;
            a[i].l=min(a[i].l,a[i-1].l)
        }
        else
        {
            cout<<0;
            return;
        }
    }
    cout<<a[m].r-a[m].l+1;
}

int main()
{
   // freopen("prison.inp","r",stdin);
   // freopen("prison.out","w",stdout);
    readdata();
    sort(a+1,a+1+m,comp);
    solve();
    return 0;
}


Compiler output:
a.cc: In function 'void solve()':
a.cc:32:40: error: expected ';' before '}' token
   32 |             a[i].l=min(a[i].l,a[i-1].l)
      |                                        ^
      |                                        ;
   33 |         }
      |         ~
Language: C++

#include <iostream>
#include<algorithm>
#include<vector>
#include<string>
#include <cmath>
#include <iomanip>
#include <math.h>
#include <numeric>
using namespace std;
#define int long long int


int main() {
	int n, m;
	cin >> n >> m;
	vector<int> L(m);
	vector<int> R(m);
	for (int i = 0; i < m; i++) {
		cin >> L[i] >> R[i];
	}
	cout << *min_element(R.begin(), R.end()) - *max_element(L.begin(), L.end())+1 << endl;
	return 0;
}

Compiler output:
a.cc:10:23: error: '::main' must return 'int'
   10 | #define int long long int
      |                       ^~~
a.cc:13:1: note: in expansion of macro 'int'
   13 | int main() {
      | ^~~
Language: C++

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

int main() {
	// your code goes here
	int n,m;
	cin >> n >> m;
	vector < pair <int,int> > v;
	for(int i = 1 ; i <= n ; i++)
	{
		int l,r;
		cin >> l >> r;
		v.push_back({l,r});
	}
//	sort(v.begin() , v.end());
	if(n == 1)
	{
		cout << v[0].second-v[0].first+1;
		return 0;
	}
	int s=-1e9,e=1e9;
	bool ans = true;
	if(v[0].second-v[1].first >= 0)
	{
		s = v[1].first;
		e = v[0].second;
	}
	else ans = false;
	
	for(int i = 1 ; i < n-1 ; i++)
	{
		if(v[i].second-v[i+1].first >= 0)
		{
			s =  max(s,v[i+1].first);
			e = min(e,v[i].second);
		}
		else 
			ans = false;
	}
	e = min(e,v[n-1].second)
	if(ans == false){cout << 0; return 0;} 
	cout << e-s+1;
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:40:33: error: expected ';' before 'if'
   40 |         e = min(e,v[n-1].second)
      |                                 ^
      |                                 ;
   41 |         if(ans == false){cout << 0; return 0;}
      |         ~~
Language: C++

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

int main() {
	// your code goes here
	int n,m;
	cin >> n >> m;
  	int ll = -INT_MAX,sl = INT_MAX;
	for(int i = 1 ; i <= n ; i++)
	{
		int l,r;
		cin >> l >> r;
		ll = max(ll,l);
      	sl = min(sl,r);
	}
	if(sl-ll < 0)cout << 0;
  	else vout << sl-ll+1;
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:17:14: error: 'vout' was not declared in this scope
   17 |         else vout << sl-ll+1;
      |              ^~~~
Language: C++

#include <iostream>

using namespace std;

const int maxn = 1e5 + 9;
int n, m, maxL, minR;

void Enter()
{
    ios_base::sync_with_stdio(false);
    cin.tie(NULL); cout.tie(NULL);
    cin >> n >> m;
    maxL = -1, minR = INT_MAX;
    for (int i = 1, l, r; i <= m; i++)
    {
        cin >> l >> r;
        maxL = max(maxL, l);
        minR = min(minR, r);
    }
}

void Solve()
{
    if (maxL <= minR)
        cout << minR - maxL + 1;
    else
        cout << 0;
}

int main()
{
    Enter();
    Solve();
    return 0;
}


Compiler output:
a.cc: In function 'void Enter()':
a.cc:13:23: error: 'INT_MAX' was not declared in this scope
   13 |     maxL = -1, minR = INT_MAX;
      |                       ^~~~~~~
a.cc:2:1: note: 'INT_MAX' is defined in header '<climits>'; this is probably fixable by adding '#include <climits>'
    1 | #include <iostream>
  +++ |+#include <climits>
    2 |
Language: C++

#include <bits/stdc++.h>
using namespace std;
int N,M;
int L,R;
int ans=0;
int main(){
    cin >> N >> M;
    vector<int> le(M+1);
    vector<int> ri(M+1);
    for(int i=0;i<M;i++){
        cin >> le.at(i) >> ri.at(i);
    }
    L=le[0];
    R=re[0];
    for(int i=0;i<M;i++){
//        if(ri.at(i)>=L || le.at(i)<=R){
            if(L<le.at(i)){
                L=le.at(i);
            }
            if(R>ri.at(i)){
                R=ri.at(i);
            }
        }
//    }
    if(L<=R){
        ans=R-L+1;
    }
    cout << ans;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:14:7: error: 're' was not declared in this scope; did you mean 'ri'?
   14 |     R=re[0];
      |       ^~
      |       ri
Language: C++

#include<bits/stdc++.h>
using namespace std;
int main()
{
  int n,m,max=-1,min=12000;
  cin>>n>>m;
  int a[m],b[m];
  for(int i=0;i<m;i++)
  {
    cin>>a[i]>>b[i];
    if(max<a[i])
    {
      max=a[i];
    }
    if(min>b[i])
    {
      min=b[i];
    }
    cout<<max-min+1;
  }
  

Compiler output:
a.cc: In function 'int main()':
a.cc:20:4: error: expected '}' at end of input
   20 |   }
      |    ^
a.cc:4:1: note: to match this '{'
    4 | {
      | ^
Language: C

#include<stdio.h>

int main(void){
    long n,m;
    scanf("%ld %ld", &n, &m);

    if( (n>=1 && n<=100000)&& (m>=1 && m<=10000))
    else return 0;

    long l[n], r[m], min=1, max=n, num=n;
    for(int i=0; i<m; i++){
        scanf("%ld %ld", &l[i], &r[i]);
        //if( !(l[i]>=1 && l[i]<=r[i])|| !(r[i]>=1 && r[i]<=n)) return 0;
        
        if(l[i]>min) min = l[i];
        if(r[i]<max) max = r[i];
        if(min > max) break;

    }
    if(min > max) num = 0;
    else num = max - min +1;
    printf("%ld\n", num);
    return 0;
}

Compiler output:
main.c: In function 'main':
main.c:8:5: error: expected expression before 'else'
    8 |     else return 0;
      |     ^~~~
Language: C

#include<stdio.h>

int main(void){
    long n,m;
    scanf("%ld %ld", &n, &m);

    if( !((n>=1 && n<=100000)&& (m>=1 && m<=10000)) return 0;

    long l[n], r[m], min=1, max=n, num=n;
    for(int i=0; i<m; i++){
        scanf("%ld %ld", &l[i], &r[i]);
        //if( !(l[i]>=1 && l[i]<=r[i])|| !(r[i]>=1 && r[i]<=n)) return 0;
        
        if(l[i]>min) min = l[i];
        if(r[i]<max) max = r[i];
        if(min > max) break;

    }
    if(min > max) num = 0;
    else num = max - min +1;
    printf("%ld\n", num);
    return 0;
}

Compiler output:
main.c: In function 'main':
main.c:7:52: error: expected ')' before 'return'
    7 |     if( !((n>=1 && n<=100000)&& (m>=1 && m<=10000)) return 0;
      |       ~                                            ^~~~~~~
      |                                                    )
main.c:23:1: error: expected expression before '}' token
   23 | }
      | ^
Language: C

include<stdio.h>

int main(void){
    long n,m;
    scanf("%ld %ld", &n, &m);

    if( !(n>=1 && n<=100000)|| !(m>=1 && m<=10000)) return 0;

    long l[n], r[m], min=1, max=n, num=n;
    for(int i=0; i<m; i++){
        scanf("%ld %ld", &l[i], &r[i]);
        if( !(l[i]>=1 && l[i]<=r[i])|| !(r[i]>=1 && r[i]<=n)) return 0;
        
        if(l[i]>min) min = l[i];
        if(r[i]<max) max = r[i];
        if(min > max) break;

    }
    if(min > max) num = 0;
    else num = max - min +1;
    printf("%ld\n", num);
    return 0;
}

Compiler output:
main.c:1:8: error: expected '=', ',', ';', 'asm' or '__attribute__' before '<' token
    1 | include<stdio.h>
      |        ^
Language: C

/* prison.c */
#include<stdio.h>

int main(void)
{
  int n,m,l[m+1],r[m+1],i,j,f;
  scanf("%d %d",&n,&m);
  f=0;
  g=0;
  for(i=1;i<=m;i++){
    scanf("%d %d",&l[i],&r[i]);
    for(j=1;j<=n;j++){
    if(j<=r[i]&&j>=l[i])
      f[j]++;
    }
  }
  for(j=1;j<=n;j++){
    if(f[j]==m)
      g++;
  }
  printf("%d\n",g)
  return 0;
}


Compiler output:
main.c: In function 'main':
main.c:9:3: error: 'g' undeclared (first use in this function)
    9 |   g=0;
      |   ^
main.c:9:3: note: each undeclared identifier is reported only once for each function it appears in
main.c:14:8: error: subscripted value is neither array nor pointer nor vector
   14 |       f[j]++;
      |        ^
main.c:18:9: error: subscripted value is neither array nor pointer nor vector
   18 |     if(f[j]==m)
      |         ^
main.c:21:19: error: expected ';' before 'return'
   21 |   printf("%d\n",g)
      |                   ^
      |                   ;
   22 |   return 0;
      |   ~~~~~~
Language: C

#include<stdio.h>

int main(void){
    double n,m;
    scanf("%d %d", &n, &m);

    double l[n], r[m], min=0, max=n;
    for(int i=0; i<m; i++){
        scanf("%d %d", &l[i], &r[i]);
        if(l[i]>min) min = l[i];
        if(r[i]<max) max = r[i];
    }
    printf("%d\n", max - min +1);
    return 0;
}

Compiler output:
main.c: In function 'main':
main.c:7:12: error: size of array 'l' has non-integer type
    7 |     double l[n], r[m], min=0, max=n;
      |            ^
main.c:7:18: error: size of array 'r' has non-integer type
    7 |     double l[n], r[m], min=0, max=n;
      |                  ^
Language: C++

#include<bits/stdc++.h>
#define FOR(i,a,b) for(int i=(a);i<(b);++i)
#define rep(i,n) FOR(i,0,n)

using namespace std;
int main(){
  int n,m;
  cin>>n>>m;
  int  l[n],r[n];
  int maxl=1;
  int minr=n;
  int i=0;
  rep(i,m){//rep?
    maxl=max(maxl,maxl[i]);
    minr=min(minr,minr[i]);
  }
  int ans=minr-maxl+1;//区間の長さは+1;
  ans=max(ans,0);//もし答えが負だったら答えが0になるように
  cout<<ans<<endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:14:23: error: invalid types 'int[int]' for array subscript
   14 |     maxl=max(maxl,maxl[i]);
      |                       ^
a.cc:15:23: error: invalid types 'int[int]' for array subscript
   15 |     minr=min(minr,minr[i]);
      |                       ^
Language: C++

#include<bits/stdc++.h>
using namespace std;
int main(){
  int n,m;
  cin>>n>>m;
  int  l[n],r[n];
  int maxl=1;
  int minr=n;
  rep(i,m){//rep?
    maxl=max(maxl,maxl[i]);
    minr=min(minr,minr[i]);
  }
  int ans=minr-maxl+1;//区間の長さは+1;
  ans=max(ans,0);//もし答えが負だったら答えが0になるように
  cout<<ans<<endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:9:7: error: 'i' was not declared in this scope
    9 |   rep(i,m){//rep?
      |       ^
a.cc:9:3: error: 'rep' was not declared in this scope
    9 |   rep(i,m){//rep?
      |   ^~~
Language: C++

#include<bits/stdc++.h>
using namespace std;
#define REP(i,n) for(int (i)=0;(i)<(n);(i)++)
typedef long long lint;
int main(){
  int n,m,l,r;
  cin >> n >> m;
  int ans_l = 1,ans_r = n;
  REP(i,m){
    cin >> l >> r;
    if(ans_l<l) ans_l = l;
    if(ans_r>r) ans_r = r;
  }
  int ans;
  if(ans_l>ans_r){
    ans = 0
  }else{
    ans = ans_r - ans_l +1;
  }
  cout << ans << endl;
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:16:12: error: expected ';' before '}' token
   16 |     ans = 0
      |            ^
      |            ;
   17 |   }else{
      |   ~
Language: C

#include <stdio.h>

int main(void)
{
	int n,m;
	
	scanf("%d %d",&n,&m);
	
	int l[m],r[m];
	
	int l_max,r_min;
	
	int i,j;
	for(i = 0; i < m; i++){
		scanf("%d %d",&l[i],&r[i]);
	}
	
	//判断
	
	l_max = l[0];
	for(i = 0; i < m; i++){
		if(l[i] > l_max){
			l_max = l[i];
		}
	}
	
	r_min = r[0];
	for(i = 0; i < m; i++){
		if(r_min > r[i]){
			r_min = r[i];
		}
	}
	
	if(r_min - l_max > 0){
		printf("%d\n",r-min - l_max + 1);
	}else{
		printf("0\n");
	}
		
	
	return 0;
}
				
			
			
	
	
	
	

Compiler output:
main.c: In function 'main':
main.c:35:33: error: 'min' undeclared (first use in this function); did you mean 'main'?
   35 |                 printf("%d\n",r-min - l_max + 1);
      |                                 ^~~
      |                                 main
main.c:35:33: note: each undeclared identifier is reported only once for each function it appears in
Language: C++

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

int main() {
  
  int n,m,l,r,s;
  vector<int> vec(n);
  cin >> n >> m;
  
  if(n == 1){
    cin >> l >> r;
    cout << r-l+1 << endl;
  }
  
  else{
  for(int i=0;i<m;i++){
    cin >> l >> r >> a >> b;
    
    for(int j=max(l,a)-1;j<min(r,b);j++) vec.at(j) = 1 ;
  } 
  
  for(int i=0;i<m;i++) s = vec.at(i);
  
  cout << s << endl;
  }
}


Compiler output:
a.cc: In function 'int main()':
a.cc:17:22: error: 'a' was not declared in this scope
   17 |     cin >> l >> r >> a >> b;
      |                      ^
a.cc:17:27: error: 'b' was not declared in this scope
   17 |     cin >> l >> r >> a >> b;
      |                           ^
Language: C

#include <stdio.h>

int main(void)
{
	int n,m;
	
	scanf("%d %d",&n,&m);
	
	int l[m],r[m];
	
	int i,j;
	for(i = 0; i < m; i++){
		scanf("%d %d",&l[i],&r[i]);
	}
	
	//判断
	
	int tuuka = 0;
	
	for(i = 1; i <= n; i++){
		int count = 0;
			for(j = 0; j < m; j++){
				if(l[j] >= i && r[j] <= i){
				count++;
				}
				if(count == m){
					tuuka++
				}
			}
	}
	
	printf("%d\n",tuuka);
	
	return 0;
}
				
			
			
	
	
	
	

Compiler output:
main.c: In function 'main':
main.c:27:48: error: expected ';' before '}' token
   27 |                                         tuuka++
      |                                                ^
      |                                                ;
   28 |                                 }
      |                                 ~
Language: C++

import java.util.Scanner;

public class Main
{

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

		int n = Integer.parseInt(sc.next());
		int m = Integer.parseInt(sc.next());

		int l = 1;
		int r = n;

		for (int i = 1; i <= m; i++) {
			int tl = Integer.parseInt(sc.next());
			int tr = Integer.parseInt(sc.next());

			if (l < tl) l = tl;
			if (tr < r) r = tr;
		}

		if (r < l) {
			System.out.println(0);
		} else {
			System.out.println(r - l + 1);
		}

		sc.close();
	}
}

Compiler output:
a.cc:1:1: error: 'import' does not name a type
    1 | import java.util.Scanner;
      | ^~~~~~
a.cc:1:1: note: C++20 'import' only available with '-fmodules-ts'
a.cc:3:1: error: expected unqualified-id before 'public'
    3 | public class Main
      | ^~~~~~
Language: C

#include<stdio.h>
#define A 100000;
int main()
{
	int N,M;
	int R_min,L_max,R,L;
	int i;
	scanf("%d %d",&N,&M);
	R_min=N;
	L_max=1;
	for(i=0;i<M;i++){
		scanf("%d %d",&L,&R);
		if(R<R_min){
			R_min=R;
		}
		if(L>L_max){
			L_max=L;
		}
	}
	if(N<=R_max){
		printf("%d\n",R_min-L_max+1);
	}else{
		printf("%d",N-L_max+1);
	}
}


Compiler output:
main.c: In function 'main':
main.c:20:15: error: 'R_max' undeclared (first use in this function); did you mean 'L_max'?
   20 |         if(N<=R_max){
      |               ^~~~~
      |               L_max
main.c:20:15: note: each undeclared identifier is reported only once for each function it appears in
Language: C++

#include <bits/stdc++.h>
using namespace std;
 
int main() {
 int Max=-1,Min=100001;
 int Maxleft;
 int Minright;
 int N,M;
 int l,r;
  cin >>N>>M;
  for(int i=0;i<M;i++){
    cin >>l>>r;
    if(l<Min){Min=l;Minright=r;}
    if(r>Max){Max=r;Maxleft=l;}
  }
  ans=Minright-Maxleft+1;
  if(ans<0)ans=0;
  cout <<ans<<endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:16:3: error: 'ans' was not declared in this scope; did you mean 'abs'?
   16 |   ans=Minright-Maxleft+1;
      |   ^~~
      |   abs
Language: C++

#include <bits/stdc++.h>
using namespace std;
 
int main() {
 int Max=-1,Min=100001;
 int Maxleft;
 int Minright;
 int N,M;
 int l,r;
  cin >>N>>M;
  for(int i=0;i<M;i++){
    cin >>l>>r;
    if(l<Min){Min=l;Minright=r;}
    if(r>Max){Max=r;Maxleft=l;}
  }
  ans=Maxleft-Minright+1;
  if(ans<0)ans=0;
  cout <<ans<<endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:16:3: error: 'ans' was not declared in this scope; did you mean 'abs'?
   16 |   ans=Maxleft-Minright+1;
      |   ^~~
      |   abs
Language: C++

#include <bits/stdc++.h>
using namespace std;
int main() {
  int n, m;
  cin>>n>>m;
  int A[n + 1];
  memset(A, 0, sizeof(A));
  for(int i = 0; i < m; i++) {
    int a, b;
    cin>>a>>b;
    A[a]++;
    A[b + 1]--;
  }
  int m = -1, ans = -1;
  for(int i = 1; i <= n; i++) {
    A[i] += A[i - 1];
    if(A[i] > m) {
      ans = i;
      m = A[i];
    }
  }
  cout<<ans<<endl;
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:14:7: error: redeclaration of 'int m'
   14 |   int m = -1, ans = -1;
      |       ^
a.cc:4:10: note: 'int m' previously declared here
    4 |   int n, m;
      |          ^
Language: C++

#include<bits/stdc++.h>
#define rep(i,a,b) for(int i=a;i<b;i++)
#define rrep(i,a,b) for(int i=a;i>=b;i--)
#define fore(i,a) for(auto &i:a)
#define all(x) (x).begin(),(x).end()
//#pragma GCC optimize ("-O3")
using namespace std; void _main(); int main() { cin.tie(0); ios::sync_with_stdio(false); _main(); }
typedef long long ll; const int inf = INT_MAX / 2; const ll infl = 1LL << 60;
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 (b<a) { a = b; return 1; } return 0; }
//---------------------------------------------------------------------------------------------------
/*---------------------------------------------------------------------------------------------------
　　　　　　　　　　　 ∧＿∧  
　　　　　 ∧＿∧ 　（´<_｀ ）　 Welcome to My Coding Space!
　　　　 （ ´_ゝ`）　/　 ⌒i     
　　　　／　　　＼　 　  |　|     
　　　 /　　 /￣￣￣￣/　　|  
　 ＿_(__ﾆつ/　    ＿/ .| .|＿＿＿＿  
　 　　　＼/＿＿＿＿/　（u　⊃  
---------------------------------------------------------------------------------------------------*/






int N, M, L[101010], R[101010];
//---------------------------------------------------------------------------------------------------
void _main() {
	cin >> N >> M;
	rep(i, 0, M) cin >> L[i] >> R[i];
	
	int l = 0, r = N;
	rep(i, 0, M) {
		chmax(l, L[i]);
		chmin(r, R[i]):
	}
	
	int ans = 0;
	chmax(ans, r - l + 1);
	cout << ans << endl;
}


Compiler output:
a.cc: In function 'void _main()':
a.cc:36:31: error: expected ';' before ':' token
   36 |                 chmin(r, R[i]):
      |                               ^
      |                               ;
Language: C++

#include <bits/stdc++.h>
int n, m;
std::vector<int> vec;
int l, r;
int main() {
    std::cin >> n >> m;
    vec.assign(n + 2, 0);
    for (int i = 0; i < m; i++) {
        std::cin >> l >> r;
        vec[l]++;
        vec[r+1]--;
    }
    for (int i = 2; i <= n + 1; i++) {
        vec[i] += vec[i - 1];
    }
    std::cout << std::count(vec.begin(), vec.end(), M) << std::endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:16:53: error: 'M' was not declared in this scope
   16 |     std::cout << std::count(vec.begin(), vec.end(), M) << std::endl;
      |                                                     ^
Language: C

#include <stdio.h>

int main(void) {
  int i;
  int N, M;
  int Lmax,Rmin;
  scanf("%d %d", &N, &M);
  int L[M+1], R[M+1];

  for(i=1;i<=M;i++){
    scanf("%d %d", &L[i], &R[i]);
  }
  Lmax=L[1];
  Rmin=R[1];

  for(i=1;i<=M;i++){
    if(Lmax<L[i]) Lmax=L[i];
    if(Rmin>R[i]) Rmin=R[i];
  }

  if(Lmax>Rmin){
    printf("0\n")
  }else{
    printf("%d\n", Rmin-Lmax+1);
  }
  return 0;
}


Compiler output:
main.c: In function 'main':
main.c:22:18: error: expected ';' before '}' token
   22 |     printf("0\n")
      |                  ^
      |                  ;
   23 |   }else{
      |   ~
Language: C

#include <stdio.h>

int main(void) {
  int i,j;
  int count=0;//すべてのゲートを通り抜けたカードの数
  int N, M;
  scanf("%d %d", &N, &M);
  int L[M+1], R[M+1];

  for(i=1;i<=M;i++){
    scanf("%d %d", &L[i], &R[i]);
  }
  Lmax=L[1];
  Rmin=R[1];

  for(i=1;i<=M;i++){
    if(Lmax<L[i]) Lmax=L[i];
    if(Rmin>L[i]) Rmin=L[i];
  }

  for(i=1;i<=N;i++){
    if(Lmax<=i&&i<=Rmin)count++;
  }

  printf("%d\n", count);

  return 0;
}


Compiler output:
main.c: In function 'main':
main.c:13:3: error: 'Lmax' undeclared (first use in this function)
   13 |   Lmax=L[1];
      |   ^~~~
main.c:13:3: note: each undeclared identifier is reported only once for each function it appears in
main.c:14:3: error: 'Rmin' undeclared (first use in this function)
   14 |   Rmin=R[1];
      |   ^~~~
Language: C++

#include<iostream>
#include<cstdio>
#include<cmath>
#include<cstring>
#include<string>
#include<stack>
#include<queue>
#include<vector>
#include<algorithm>
#include<iomanip>
#include<utility>
#include <cassert>
typedef long long int ll;
#define FOR(i,a,b) for(int i=(a);i<(b);i++)
#define REP(i,n) for(int i=0;i<signed(n);i++)
#define EREP(i,n) for(int i=1;i<=signed(n);i++)
#define ALL(a) (a).begin(),(a).end()
using std::cout;
using std::vector;
using std::endl;
using std::cin;
using std::string;
//#define EVEL 1
#ifdef EVEL
#define DEB(X) cout << #X << ":" <<X<<" " ;
#define TF(f) f ? cout<<"true  " : cout<<"false ";
#define END cout<<"\n";
#else
#define DEB(X) {}
#define TF(f) {}
#define END {}
#endif
const int MOD = 1000000007;
const ll INF = 5000000000000;
typedef std::pair<int, int> P;
struct edge { int to;double cost; };
#define VMAX 1010

     ll N,M;
     ll A[100010],B[100010];

int main() {
    cin>>N>>M;
    REP(i,M){
        cin>>A[i]>>B[i];
    }
    std::sort(A,A+M);
    std::sort(B,B+M);
    cout<<max(B[0]-A[M-1]+1,0)<<endl;
	return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:49:11: error: 'max' was not declared in this scope; did you mean 'std::max'?
   49 |     cout<<max(B[0]-A[M-1]+1,0)<<endl;
      |           ^~~
      |           std::max
In file included from /usr/include/c++/14/algorithm:61,
                 from a.cc:9:
/usr/include/c++/14/bits/stl_algo.h:5716:5: note: 'std::max' declared here
 5716 |     max(initializer_list<_Tp> __l, _Compare __comp)
      |     ^~~
Language: C++

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

Compiler output:
a.cc: In function 'int main()':
a.cc:7:43: error: 'p' was not declared in this scope
    7 |         for(int i=0;i<m;i++) { cin>>s[i]>>p[i]; }
      |                                           ^
a.cc:10:20: error: 'r' was not declared in this scope
   10 |                 if(r[i]<min) min=r[i];
      |                    ^
a.cc:11:20: error: 'l' was not declared in this scope
   11 |                 if(l[i]>max) max=l[i];
      |                    ^
Language: C++

#include <bits/stdc++.h>

using namespace std;

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

Compiler output:
a.cc:28:2: error: 'ac' does not name a type
   28 | }ac
      |  ^~
Language: C++

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

Compiler output:
a.cc:4:11: error: expected ')' before '{' token
    4 | int main(){
      |           ^
      |           )
a.cc:3:18: note: to match this '('
    3 | int binary_search(
      |                  ^
a.cc: In function 'int binary_search(int (*)())':
a.cc:8:43: error: 'p' was not declared in this scope
    8 |         for(int i=0;i<m;i++) { cin>>s[i]>>p[i]; }
      |                                           ^
a.cc:11:20: error: 'r' was not declared in this scope
   11 |                 if(r[i]<min) min=r[i];
      |                    ^
a.cc:12:20: error: 'l' was not declared in this scope
   12 |                 if(l[i]>max) max=l[i];
      |                    ^
Language: C++

#include<iostream>
using namespace std;
int main(){
  int m,n,A[m][2],count=0;
  cin>>n>>m;
  for(int i=0;i<m;i++)
    cin>>A[i][0]>>A[i][1];
  for(int i=1;i<=n;i++){
    for(int j=0;j<m;j++){
      if((i==A[j][0])||(i==A[j]1])||(i==(A[j][0]+1)))
        count++;
    }
  }
  cout<<count;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:10:26: error: ISO C++ forbids comparison between pointer and integer [-fpermissive]
   10 |       if((i==A[j][0])||(i==A[j]1])||(i==(A[j][0]+1)))
      |                         ~^~~~~~
a.cc:10:32: error: expected ')' before numeric constant
   10 |       if((i==A[j][0])||(i==A[j]1])||(i==(A[j][0]+1)))
      |                        ~       ^
      |                                )
a.cc:11:16: error: expected ')' before ';' token
   11 |         count++;
      |                ^
      |                )
a.cc:10:9: note: to match this '('
   10 |       if((i==A[j][0])||(i==A[j]1])||(i==(A[j][0]+1)))
      |         ^