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

int main(){
  int a,b;
  cin>>a>>b;
  vector<int>L(b);
  vector<int>R(b);
  for(int i=0;i<b;i++){
    cin>>L.at(i)>>R.at(i);
  }
  sort(L.begin(),L.end());
  sort(R.begin(),R.end());
  int ans;
  ans=L.at(b-1)-R.at(0)+1;
  ans=max(ans,0);
}

Compiler output:
a.cc: In function 'int main()':
a.cc:3:3: error: 'cin' was not declared in this scope
    3 |   cin>>a>>b;
      |   ^~~
a.cc:4:3: error: 'vector' was not declared in this scope
    4 |   vector<int>L(b);
      |   ^~~~~~
a.cc:4:10: error: expected primary-expression before 'int'
    4 |   vector<int>L(b);
      |          ^~~
a.cc:5:10: error: expected primary-expression before 'int'
    5 |   vector<int>R(b);
      |          ^~~
a.cc:7:10: error: 'L' was not declared in this scope
    7 |     cin>>L.at(i)>>R.at(i);
      |          ^
a.cc:7:19: error: 'R' was not declared in this scope
    7 |     cin>>L.at(i)>>R.at(i);
      |                   ^
a.cc:9:8: error: 'L' was not declared in this scope
    9 |   sort(L.begin(),L.end());
      |        ^
a.cc:9:3: error: 'sort' was not declared in this scope; did you mean 'short'?
    9 |   sort(L.begin(),L.end());
      |   ^~~~
      |   short
a.cc:10:8: error: 'R' was not declared in this scope
   10 |   sort(R.begin(),R.end());
      |        ^
a.cc:13:7: error: 'max' was not declared in this scope
   13 |   ans=max(ans,0);
      |       ^~~
Language: C++

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

int main(){
  int a,b;
  cin>>a>>b;
  vector<int>L(b);
  vector<int>R(b);
  for(int i=0;i<b;i++){
    cin>>L.at(i)>>R.at(i);
  }
  sort(L.begin(),L.end());
  sort(R.begin(),R.end());
  int ans;
  ans=L.at(n-1)-R.at(0)+1;
  ans=max(ans,0);
}


Compiler output:
a.cc: In function 'int main()':
a.cc:15:12: error: 'n' was not declared in this scope
   15 |   ans=L.at(n-1)-R.at(0)+1;
      |            ^
Language: C++

//Jai Bhole Ki
#include <bits/stdc++.h>
using namespace std;
#define fast static int fastline = []() { std::ios::sync_with_stdio(false); cin.tie(NULL); return 0; }();
#define ll long long
#define LL unsigned ll
#define pb push_back
#define pi pair<ll,ll>
#define debug(x) cout<<x<<"\n";
#define debug cout<<"debugged\n";
#define minval -2e9
#define maxval 2e9
long double PI =3.14159265358979323846;
 
const ll M=1e9+7;
const ll inf=1e18;
const ll ms=1e7+2;
fast;
ll ans;
ll n,m,l,r;
void solve()
{
   cin>>n>>m;
  r=INT_MAX;
   for(int i=0;i<m;i++)
    {
        ll a,b;cin>>a>>b;
        l=max(l,a);r=min(r,b);
    }
    cout<<max(0,r-l+1)<<endl;
}

int main()
{
 // freopen("input.txt","r",stdin);
//  freopen("output.txt","w",stdout);
   // int t;cin>>t;while(t--)
    {
        solve();
    }
    return 0;
}


Compiler output:
a.cc:10:9: warning: "debug" redefined
   10 | #define debug cout<<"debugged\n";
      |         ^~~~~
a.cc:9:9: note: this is the location of the previous definition
    9 | #define debug(x) cout<<x<<"\n";
      |         ^~~~~
a.cc: In function 'void solve()':
a.cc:30:14: error: no matching function for call to 'max(int, long long int)'
   30 |     cout<<max(0,r-l+1)<<endl;
      |           ~~~^~~~~~~~~
In file included from /usr/include/c++/14/algorithm:60,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:51,
                 from a.cc:2:
/usr/include/c++/14/bits/stl_algobase.h:257:5: note: candidate: 'template<class _Tp> constexpr const _Tp& std::max(const _Tp&, const _Tp&)'
  257 |     max(const _Tp& __a, const _Tp& __b)
      |     ^~~
/usr/include/c++/14/bits/stl_algobase.h:257:5: note:   template argument deduction/substitution failed:
a.cc:30:14: note:   deduced conflicting types for parameter 'const _Tp' ('int' and 'long long int')
   30 |     cout<<max(0,r-l+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:
/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:30:14: note:   mismatched types 'std::initializer_list<_Tp>' and 'int'
   30 |     cout<<max(0,r-l+1)<<endl;
      |           ~~~^~~~~~~~~
Language: C

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

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

int main() {
  int n, m;
  cin >> n >> m;
  int L = 0, R = n, l, r;
  rep(i, m) {
    cin >> l >> r;
    L = max(L, l);
    R = min(R, r);
  }
  cout << max(R - L + 1, 0) << endl;
  return 0;
}


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

#include <iostream>
#include <string>
#include <algorithm>
#include <cmath>
#include <deque>
#include <queue>
#include <stack>
#include <vector>
#include <utility>
#include <iomanip>
#include <bitset>
#include <set>
#include <map>
#include <stdio.h>
#include <numeric>

#define rep(i,n) for (long long int i = 0; i < (n); i++)
#define rep1(i,n) for (long long int i = 1; i < (n); i++)
#define FOR(i,a,b) for (int i=(a); i < (b); i++)
#define INF 100000000000
#define MOD 1000000007 //10^9+7
using namespace std;
using ll = long long;
using P = pair<int, int>;

// 負の数にも対応した % 演算
long long mod(long long val, long long m) {
    long long res = val % m;
    if (res < 0) res += m;
    return res;
}

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

long long lcm(ll a, ll b)
{
    return a / gcd(a, b) * b ;
}

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

    string s = "";
    rep(i,n) s += "0";
    int ll = 0, rr = 100000;
    rep(i,m) {
        int l, r;
        cin >> l >> r;
        l--; r--;
        ll = max(ll,l);
        rr = min(rr,r);
    }

    if (ll >= r)
        cout << rr - ll + 1<< endl;
    else
        cout << 0 << endl;

    return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:62:15: error: 'r' was not declared in this scope; did you mean 'rr'?
   62 |     if (ll >= r)
      |               ^
      |               rr
Language: Java

import java.util.*;
public class Main{
  public static void main(String[] args){
    Scanner sc = new Scanner(System.in);
    int N = sc.nextInt(); 
    int M = sc.nextInt();
    // int L[] = new int[M]; 
    // int R[] = new int[M]; 
    int min = sc.nextInt();
    int max = sc.nextInt();
    for(int i = 1; i < M; i++){
      int tmp_min = sc.nextInt();
      int tmp_max = sc.nextInt();
      if(min<=tmp_min){
        min = tmp_min; 
      }
      if(tmp_max<=max){
        max = tmp_max; 
      }
    }
    System.out.println(Math.Max(max-min+1),0);    
  
  }
}




Compiler output:
Main.java:21: error: cannot find symbol
    System.out.println(Math.Max(max-min+1),0);    
                           ^
  symbol:   method Max(int)
  location: class Math
1 error
Language: C++

#include <bits/stdc++.h>
#define _GLIBCXX_DEBUG
#define rep(i ,n) for(int i = 0 ; i < (n) ; i ++ )
#define all(x) (x).begin(),(x).end()
using ll = long long;
using namespace std;

int main() {
  int n,m;
  cin>>n>>m;
  vector<int> l(m),r(m);
  rep(i,m) cin>>l[i]>>r[i];
  /////全てのl〜rに共通する数字の個数
  int ans=0;
  for(int i=l[0]  ;i<=r[0:]  ;i++){
    bool ok=true;
     rep(j,m){
         if(l[j]<=i&&r[j]>=i){
           ok=false;
           break;
             
         }
     }
    if(ok) ans++;
  }
  cout<<ans<<endl;
}






Compiler output:
a.cc: In function 'int main()':
a.cc:15:26: error: expected ']' before ':' token
   15 |   for(int i=l[0]  ;i<=r[0:]  ;i++){
      |                          ^
      |                          ]
a.cc:15:26: error: expected ';' before ':' token
   15 |   for(int i=l[0]  ;i<=r[0:]  ;i++){
      |                          ^
      |                          ;
a.cc:15:26: error: expected primary-expression before ':' token
a.cc:15:26: error: expected ')' before ':' token
   15 |   for(int i=l[0]  ;i<=r[0:]  ;i++){
      |      ~                   ^
      |                          )
a.cc:15:26: error: expected primary-expression before ':' token
a.cc:15:31: error: 'i' was not declared in this scope
   15 |   for(int i=l[0]  ;i<=r[0:]  ;i++){
      |                               ^
Language: C++

#include <bits/stdc++.h>
#define rep(i,n) for(int i = 0; i < n; ++i)
#define INF 100100100
using namespace std;
using ll = long long;
using P = pair<int,int>;
using Graph = vector<vector<int>>;


int main(){
  int n, m;
  cin >> n >> m;
  vctor<int> l(m), r(m);
  rep(i,m){
  	cin >> l[i] >> r[i];
  }
  int left = l[0];
  int right = r[0];
  rep(i,m){
  	left = max(left, l[i]);
  	right = min(right, r[i]);
  	if(left > right){
  		cout << 0 << endl;
  		return 0;
  	}
  }
  int ans = right - left + 1;
  cout << ans << endl;
  return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:13:3: error: 'vctor' was not declared in this scope
   13 |   vctor<int> l(m), r(m);
      |   ^~~~~
a.cc:13:9: error: expected primary-expression before 'int'
   13 |   vctor<int> l(m), r(m);
      |         ^~~
a.cc:15:16: error: 'l' was not declared in this scope
   15 |         cin >> l[i] >> r[i];
      |                ^
a.cc:15:24: error: 'r' was not declared in this scope
   15 |         cin >> l[i] >> r[i];
      |                        ^
a.cc:17:14: error: 'l' was not declared in this scope
   17 |   int left = l[0];
      |              ^
a.cc:18:15: error: 'r' was not declared in this scope
   18 |   int right = r[0];
      |               ^
Language: C++

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

#define REP(i,n) for(ll i=0;i<(ll)(n);i++)
#define REPD(i,n) for(ll i=n-1;i>=0;i--)
#define FOR(i,a,b) for(ll i=a;i<=(ll)(b);i++)
#define FORD(i,a,b) for(ll i=a;i>=(ll)(b);i--)
#define ALL(x) (x).begin(),(x).end()
#define SIZE(x) ((ll)(x).size())
#define MAX(x) *max_element(ALL(x))
#define MIN(x) *min_element(ALL(x))
#define INF 1000000000000
#define MOD 1000000007
#define MAXR 100000
#define _GLIBCXX_DEBUG

int threemax(int a, int b, int c) {
	if (a >= b && a >= c) {
		return a;
	}
	else if (b >= a && b >= c) {
		return b;
	}
	else {
		return c;
	}
}

int threemin(int a, int b, int c) {
	if (a <= b && a <= c) {
		return a;
	}
	else if (b <= a && b <= c) {
		return b;
	}
	else {
		return c;
	}
}

void chmaxl(ll &a,ll b){
	if(a<b){
		a=b;
	}
	return;
}

void chminl(ll &a,ll b){
	if(a>b){
		a=b;
	}
	return;
}

void chmaxi(int &a,int b){
	if(a<b){
		a=b;
	}
	return;
}

void chmini(int &a,int b){
	if(a>b){
		a = b;
	}
	return;
}



int main() {
  ill N,M;
  cin >> N >> M;
  vector<int> L(M);
  vector<int> R(M);
  for(ll i=0;i<M;i++){
    cin >> L.at(i) >> R.at(i);
  }
  int LL,RR;
  LL=MAX(L);
  RR=MAX(R);
  if(RR>=LL){
    cout << RR-LL+1;
  }
  else{
    cout << 0;
  }
}

Compiler output:
a.cc: In function 'int main()':
a.cc:73:3: error: 'ill' was not declared in this scope; did you mean 'll'?
   73 |   ill N,M;
      |   ^~~
      |   ll
a.cc:74:10: error: 'N' was not declared in this scope
   74 |   cin >> N >> M;
      |          ^
a.cc:74:15: error: 'M' was not declared in this scope
   74 |   cin >> N >> M;
      |               ^
Language: Java

import java.util.*;
public class Main {
	public static void main(String[] args){
		Scanner sc = new Scanner(System.in);       
		int n = sc.nextInt();
		int m = sc.nextInt();
        int L = 1;
        int R = n;
        for(int i=0;i<m;i++){int l = sc.nextInt();
                             int m = sc.nextInt();
                             L=Math.max(L,l);
                             R=Math.min(R,r);
                            }
	    System.out.println(Math.max(R-L+1,0));
  }
}


Compiler output:
Main.java:10: error: variable m is already defined in method main(String[])
                             int m = sc.nextInt();
                                 ^
Main.java:12: error: cannot find symbol
                             R=Math.min(R,r);
                                          ^
  symbol:   variable r
  location: class Main
2 errors
Language: Java

import java.util.*;
public class Main {
	public static void main(String[] args){
		Scanner sc = new Scanner(System.in);       
		int n = sc.nextInt();
		int m = sc.nextInt();
        int L = 1;
        int R = n;
        for(int i=0;i<m;i++){int l = sc.nextInt();
                             int m = sc.nextInt();
                             L=Math.max(L,l);
                             M=Math.min(R,r);
                            }
	    System.out.println(Math.max(R-L+1,0));
  }
}


Compiler output:
Main.java:10: error: variable m is already defined in method main(String[])
                             int m = sc.nextInt();
                                 ^
Main.java:12: error: cannot find symbol
                             M=Math.min(R,r);
                             ^
  symbol:   variable M
  location: class Main
Main.java:12: error: cannot find symbol
                             M=Math.min(R,r);
                                          ^
  symbol:   variable r
  location: class Main
3 errors
Language: C++

 cin>>n>>m;
  vector<int> l(m),r(m);
  rep(i,m){
    cin>>l[i]>>r[i];
  }
  int s=0;
  int b=100001;
  rep(i,m){
    s=max(s,l[i]);
    b=min(b,r[i]);
  }
  if(b>=s){
    cout<<b-s+1<<endl;
  }
  else{
    cout<<0<<endl;
  }
  
  
  return 0;
}


Compiler output:
a.cc:1:2: error: 'cin' does not name a type
    1 |  cin>>n>>m;
      |  ^~~
a.cc:2:3: error: 'vector' does not name a type
    2 |   vector<int> l(m),r(m);
      |   ^~~~~~
a.cc:3:6: error: expected constructor, destructor, or type conversion before '(' token
    3 |   rep(i,m){
      |      ^
a.cc:8:6: error: expected constructor, destructor, or type conversion before '(' token
    8 |   rep(i,m){
      |      ^
a.cc:12:3: error: expected unqualified-id before 'if'
   12 |   if(b>=s){
      |   ^~
a.cc:15:3: error: expected unqualified-id before 'else'
   15 |   else{
      |   ^~~~
a.cc:20:3: error: expected unqualified-id before 'return'
   20 |   return 0;
      |   ^~~~~~
a.cc:21:1: error: expected declaration before '}' token
   21 | }
      | ^
Language: C++

n,m = map(int,input().split())
lr = [list(map(int,input().split())) for _ in range(m)]

l = 0
r = n-1

for l1,r1 in lr:
    l = max(l, l1)
    r = min(r, r1)

print(max(0, r - l + 1))


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

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

int main(){
  int num,gate;
  int tmpSmall,tmpBig;
  int small = -1;
  int big = 9999999;
  int kekka = 0;
  
  cin >> num >> gate;
  
  for(int i = 0; i < gate; i++){
    cin >> tmpSmall >> tmpBig;
    if(small < tmpSmall) small = tmpSmall;
    if(big > tmpBig) big = tmpBig;
  }
  
  if(big - small + 1 > 0) kekka = big - small + 1
  cout << kekka;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:19:50: error: expected ';' before 'cout'
   19 |   if(big - small + 1 > 0) kekka = big - small + 1
      |                                                  ^
      |                                                  ;
   20 |   cout << kekka;
      |   ~~~~
Language: C++

#include<bits/stdc++.h>
using namespace std;
using ul = unsigned long;
using ull = unsigned long long;
#define vec vector
#define rep(_i,_n) for(ull _i = 0; _i < _n; _i++)
#define rep2(_i,_s,_n) for(ull _i = _s; _i < _n; _i++)
#define elif else if
#define push(_a) push_back(_a)
#define fullSort(_a) sort(_a.begin(), _a.end())
#define inputVecI(_name, _n) vec<int> _name(_n);rep(_i, _n)cin >> _name[_i];
#define inputVecUL(_name, _n) vec<ul> _name(_n);rep(_i, _n)cin >> _name[_i];
#define inputVecULL(_name, _n) vec<ull> _name(_n);rep(_i, _n)cin >> _name[_i];
#define inputVecS(_name, _n) vec<string> _name(_n);rep(_i, _n)cin >> _name[_i];
#define printVec(_vec) cout << "{";rep(i, _vec.size()-1)cout << _vec[i] << ",";cout << _vec[_vec.size()-1];cout << "}\n";
#define append(_x) push_back(_x)
#define mapLoop(_i, _name) for(auto i = _name.begin(); i != _name.end(); i++)
 
 
int main(){
   int N,M;
   cin >> N >> M;
   int L=0;
   int R=N+1;
   rep(i, M){
      int l,r;
      cin >> l >> r;
      L=max(L,l);
      R=min(R,r);
   }
   cout << max((R-L)+1,0)<< endl;
   
   return 0;

Compiler output:
a.cc: In function 'int main()':
a.cc:33:13: error: expected '}' at end of input
   33 |    return 0;
      |             ^
a.cc:20:11: note: to match this '{'
   20 | int main(){
      |           ^
Language: C++

n,m = map(int,input().split())
#v = list(map(int,input().split()))

#a = [0 for _ in range(n+1)]
ml = -1
mr = 10**6
for i in range(m):
  l,r = map(int,input().split())
  ml = max(ml,l)
  mr = min(mr,r)
  

res = ml - mr + 1
print(res)

Compiler output:
a.cc:2:2: error: invalid preprocessing directive #v
    2 | #v = list(map(int,input().split()))
      |  ^
a.cc:4:2: error: invalid preprocessing directive #a
    4 | #a = [0 for _ in range(n+1)]
      |  ^
a.cc:1:1: error: 'n' does not name a type
    1 | n,m = map(int,input().split())
      | ^
Language: C++

#include <iostream>
#include <vector>
#include <algorithm>
#include <math.h>
#include <climits>

using namespace std;


int main() {
  int N, M;
  cin >> N >> M;
  
  int L[M+1], R[M+1];
  for (int i = 1; i <= M; i++) {
    int l, r;
    cin >> l >> r;
    
    L[i] = l;
    R[i] = r;
  }

  int maxL = 0, minR = INT_MAX;
  for (int i = 1; i <= M; i++) {
    maxL = max(maxL, L[i]);
    minR = min(minR, R[i]);
  ;

  cout << max(minR-maxL+1,0) << endl;  

  return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:32:2: error: expected '}' at end of input
   32 | }
      |  ^
a.cc:10:12: note: to match this '{'
   10 | int main() {
      |            ^
Language: C++

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

int main(){
  int n, l;
  int R[n], L[n];
  for(int i = 0; i < n; i++) cin >> R[i] >> L[i];
  
  int MIN = 0,  MAX = 0;
  for(int i = 0; i < n; i++){
    MIN = max{MIN, R[i]);
    MAX = min{MAX, L[i]);
  }
  cout << MAX - MIN + 1 << endl;
}
     

Compiler output:
a.cc: In function 'int main()':
a.cc:11:11: error: cannot resolve overloaded function 'max' based on conversion to type 'int'
   11 |     MIN = max{MIN, R[i]);
      |           ^~~
a.cc:15:2: error: expected '}' at end of input
   15 | }
      |  ^
a.cc:10:29: note: to match this '{'
   10 |   for(int i = 0; i < n; i++){
      |                             ^
a.cc:15:2: error: expected '}' at end of input
   15 | }
      |  ^
a.cc:4:11: note: to match this '{'
    4 | int main(){
      |           ^
Language: C++

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

int main(){
  int n, l;
  int R[n], L[n];
  for(int i = 0; i < n; i++) cin >> R[i] >> L[i];
  
  int MIN = 0,  MAX = 0;
  for(int i = 0; i < n; i++){
    MIN = max{MIN, R[i]);
    MAX = min{MAX, L[i]);
  }
  cout << MAX - MIN + 1 << endl;
}
     

Compiler output:
a.cc:2:17: error: 'stdl' is not a namespace-name
    2 | using namespace stdl;
      |                 ^~~~
a.cc: In function 'int main()':
a.cc:7:30: error: 'cin' was not declared in this scope; did you mean 'std::cin'?
    7 |   for(int i = 0; i < n; i++) cin >> R[i] >> L[i];
      |                              ^~~
      |                              std::cin
In file included from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:146,
                 from a.cc:1:
/usr/include/c++/14/iostream:62:18: note: 'std::cin' declared here
   62 |   extern istream cin;           ///< Linked to standard input
      |                  ^~~
a.cc:11:11: error: 'max' was not declared in this scope; did you mean 'std::max'?
   11 |     MIN = max{MIN, R[i]);
      |           ^~~
      |           std::max
In file included from /usr/include/c++/14/algorithm:61,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:51:
/usr/include/c++/14/bits/stl_algo.h:5716:5: note: 'std::max' declared here
 5716 |     max(initializer_list<_Tp> __l, _Compare __comp)
      |     ^~~
a.cc:15:2: error: expected '}' at end of input
   15 | }
      |  ^
a.cc:10:29: note: to match this '{'
   10 |   for(int i = 0; i < n; i++){
      |                             ^
a.cc:15:2: error: expected '}' at end of input
   15 | }
      |  ^
a.cc:4:11: note: to match this '{'
    4 | int main(){
      |           ^
Language: C++

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

int main(){
  int n, l;
  int R[n], L[n];
  for(int i = 0; i < N; i++) cin >> R[i] >> L[i];
  
  int MIN = 0,  MAX = 0;
  for(int i = 0; i < N; i++){
    MIN = max{MIN, R[i]);
    MAX = min{MAX, L[i]);
  }
  cout << MAX - MIN + 1 << endl;
}
     

Compiler output:
a.cc:2:17: error: 'stdl' is not a namespace-name
    2 | using namespace stdl;
      |                 ^~~~
a.cc: In function 'int main()':
a.cc:7:22: error: 'N' was not declared in this scope
    7 |   for(int i = 0; i < N; i++) cin >> R[i] >> L[i];
      |                      ^
a.cc:7:30: error: 'cin' was not declared in this scope; did you mean 'std::cin'?
    7 |   for(int i = 0; i < N; i++) cin >> R[i] >> L[i];
      |                              ^~~
      |                              std::cin
In file included from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:146,
                 from a.cc:1:
/usr/include/c++/14/iostream:62:18: note: 'std::cin' declared here
   62 |   extern istream cin;           ///< Linked to standard input
      |                  ^~~
a.cc:10:22: error: 'N' was not declared in this scope
   10 |   for(int i = 0; i < N; i++){
      |                      ^
a.cc:11:11: error: 'max' was not declared in this scope; did you mean 'std::max'?
   11 |     MIN = max{MIN, R[i]);
      |           ^~~
      |           std::max
In file included from /usr/include/c++/14/algorithm:61,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:51:
/usr/include/c++/14/bits/stl_algo.h:5716:5: note: 'std::max' declared here
 5716 |     max(initializer_list<_Tp> __l, _Compare __comp)
      |     ^~~
a.cc:15:2: error: expected '}' at end of input
   15 | }
      |  ^
a.cc:10:29: note: to match this '{'
   10 |   for(int i = 0; i < N; i++){
      |                             ^
a.cc:15:2: error: expected '}' at end of input
   15 | }
      |  ^
a.cc:4:11: note: to match this '{'
    4 | int main(){
      |           ^
Language: C++

#include <iostream>
#include <list>
#include <set>
#include <vector>
#include <stdio.h>
using namespace std;

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

int main()
{
    int n, m;
    int l, r;
    size_t nya;
    int ans = 0;
    cin >> n >> m;
    vector<int> x;

    rep(i, m)
    {
        cin >> l >> r;
        for (int i = l; i < r + 1; i++)
        {
            x.push_back(i);
        }
    }

    rep(i, n)
    {

        nya = std::count(x.begin(), x.end(), i + 1);
        if (nya == m)
        {
            ans++;
        }
    }
    cout << ans << endl;
    return 0;
}



Compiler output:
a.cc: In function 'int main()':
a.cc:31:20: error: 'count' is not a member of 'std'; did you mean 'cout'?
   31 |         nya = std::count(x.begin(), x.end(), i + 1);
      |                    ^~~~~
      |                    cout
Language: C++

#include <iostream>
#include <list>
#include <set>
#include <vector>
#include <stdio.h>
using namespace std;

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

int main()
{
    int n, m;
    int l, r;
    size_t n_count;
    int ans = 0;
    cin >> n >> m;
    vector<int> x;

    rep(i, m)
    {
        cin >> l >> r;
        for (int i = l; i < r + 1; i++)
        {
            x.push_back(i);
        }
    }

    rep(i, n)
    {

        n_count = std::count(x.begin(), x.end(), i + 1);
        if (n_count == m)
        {
            ans++;
        }
    }
    cout << ans << endl;
    return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:31:24: error: 'count' is not a member of 'std'; did you mean 'cout'?
   31 |         n_count = std::count(x.begin(), x.end(), i + 1);
      |                        ^~~~~
      |                        cout
Language: C++

#include <iostream>
#include <list>
#include <set>
#include <vector>
#include <stdio.h>
using namespace std;

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

int main()
{
    int n, m;
    int l, r;
    size_t n_count;
    int ans = 0;
    cin >> n >> m;
    vector<int> x;

    rep(i, m)
    {
        cin >> l >> r;
        for (int i = l; i < r + 1; i++)
        {
            x.push_back(i);
        }
    }

    rep(i, n)
    {

        n_count = count(x.begin(), x.end(), i + 1);
        if (n_count == m)
        {
            ans++;
        }
    }
    cout << ans << endl;
    return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:31:19: error: 'count' was not declared in this scope; did you mean 'n_count'?
   31 |         n_count = count(x.begin(), x.end(), i + 1);
      |                   ^~~~~
      |                   n_count
Language: C++

#include <iostream>
#include <list>
#include <set>
#include <vector>
#include <stdio.h>
using namespace std;

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

int main()
{
    int n, m;
    int l, r;
    int ans = 0;
    cin >> n >> m;
    vector<int> x;

    rep(i, m)
    {
        cin >> l >> r;
        for (int i = l; i < r + 1; i++)
        {
            x.push_back(i);
        }
    }

    rep(i, n)
    {

        size_t n_count = count(x.begin(), x.end(), i + 1);
        if (n_count == m)
            ans++;
    }
    cout << ans << endl;
    return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:30:26: error: 'count' was not declared in this scope; did you mean 'n_count'?
   30 |         size_t n_count = count(x.begin(), x.end(), i + 1);
      |                          ^~~~~
      |                          n_count
Language: C

#include <stdio.h>
int main() {
	int n, m, i, l, r, Lmax=0, Rmin=100010;
	scanf("%d %d", &n, &m);
	for (i = 0; i < m; i++) {
		scanf("%d %d", &l, &r);//L,R
		if (Lmax < l)Lmax = l;
		if (r < Rmin)Rmin = r;
	}
	if (Lmax > Rmin) { printf("0\n"); return 0; }
	printf("%d\n", Rmin - Lmax + 1);　return 0;
}

Compiler output:
main.c: In function 'main':
main.c:11:41: error: stray '\343' in program
   11 |         printf("%d\n", Rmin - Lmax + 1);<U+3000>return 0;
      |                                         ^~~~~~~~
Language: Java

import java.io.*;
import java.util.*;
public class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        PrintWriter out = new PrintWriter(System.out);
        
        final int N = Integer.parseInt(sc.next());
        final int M = Integer.parseInt(sc.next());
        int maxStart = 0;
        int minEnd = 1000000;
        for (int i = 0; i < M; i++) {
            int start = Integer.parseInt(sc.next());
            int end = Integer.parseInt(sc.next());
            maxStart = Math.max(maxStart, start);
            minEnd = Math.min(minEnd, end);
        }
        
        out.println(minEnd > maxStart ? minEnd - maxStart + 1 : "0");
        
        out.flush();
    }

Compiler output:
Main.java:22: error: reached end of file while parsing
    }
     ^
1 error
Language: C++

#include<bits/stdc++.h>
using namespace std;
int main(){
int N,M;
  cin>>N>>M;
  vector<int>L(M);
  cector<int>R(M);
  for(int i=0;i<M;i++)
    cin>>L.at(i)>>R.at(i);
  int maxL=L.at(0);
  int minR=R.at(0);
  for(int i=0;i<M;i++){
    if(maxL<=L.at(i))
      maxL=L.at(i);
    if(R.at(i)<=minR)
      minR=R.at(i);
  }
  if(minR<maxL)
    cout<<0<<endl;
  else
    cout<<minR-maxL+1<<endl;

return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:7:3: error: 'cector' was not declared in this scope
    7 |   cector<int>R(M);
      |   ^~~~~~
a.cc:7:10: error: expected primary-expression before 'int'
    7 |   cector<int>R(M);
      |          ^~~
a.cc:9:19: error: 'R' was not declared in this scope
    9 |     cin>>L.at(i)>>R.at(i);
      |                   ^
a.cc:11:12: error: 'R' was not declared in this scope
   11 |   int minR=R.at(0);
      |            ^
Language: C++

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

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];
  
  int maxl=1;
  int minr=n;
  for (int i=0;i<=m;++i){
    maxl=max(maxl[i],l[i]);
    minr=min(minr[i],r[i]);
  }
  int ans=minr-maxl+1;
  ans=max(ans,0);
  cout << ans << endl;
}
  


Compiler output:
a.cc: In function 'int main()':
a.cc:14:18: error: invalid types 'int[int]' for array subscript
   14 |     maxl=max(maxl[i],l[i]);
      |                  ^
a.cc:15:18: error: invalid types 'int[int]' for array subscript
   15 |     minr=min(minr[i],r[i]);
      |                  ^
Language: C++

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

int main(){
  int n,m;
  cin >> n >> m;
  vector<int> l(m);
  vector<int> r(m);
  for (int i=0;i<=m;++i) l[i];
  for (int j=0;j<=m;++j) r[j];
  
  int maxl=1;
  int minr=n;
  for (int i=0;i<=m;++i){
    maxl=max(maxl,l[i]);
    minr=min(minr,r[i]);
  }
  int ans=minr-maxr+1;
  ans=max(ans,0);
  cout << ans << endl;
}
  

Compiler output:
a.cc: In function 'int main()':
a.cc:9:29: warning: ignoring return value of 'std::vector<_Tp, _Alloc>::reference std::vector<_Tp, _Alloc>::operator[](size_type) [with _Tp = int; _Alloc = std::allocator<int>; reference = int&; size_type = long unsigned int]', declared with attribute 'nodiscard' [-Wunused-result]
    9 |   for (int i=0;i<=m;++i) l[i];
      |                             ^
In file included from /usr/include/c++/14/vector:66,
                 from /usr/include/c++/14/functional:64,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:53,
                 from a.cc:1:
/usr/include/c++/14/bits/stl_vector.h:1128:7: note: declared here
 1128 |       operator[](size_type __n) _GLIBCXX_NOEXCEPT
      |       ^~~~~~~~
a.cc:10:29: warning: ignoring return value of 'std::vector<_Tp, _Alloc>::reference std::vector<_Tp, _Alloc>::operator[](size_type) [with _Tp = int; _Alloc = std::allocator<int>; reference = int&; size_type = long unsigned int]', declared with attribute 'nodiscard' [-Wunused-result]
   10 |   for (int j=0;j<=m;++j) r[j];
      |                             ^
/usr/include/c++/14/bits/stl_vector.h:1128:7: note: declared here
 1128 |       operator[](size_type __n) _GLIBCXX_NOEXCEPT
      |       ^~~~~~~~
a.cc:18:16: error: 'maxr' was not declared in this scope; did you mean 'maxl'?
   18 |   int ans=minr-maxr+1;
      |                ^~~~
      |                maxl
Language: C++

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

int main(){
  int n,m;
  cin >> n >> m;
  vector<int> l(m);
  vector<int> r(m);
  for (int i=0;i<=m;++i) l[i];
  for (int j=0;j<=m;++j) r[j];
  
  int ans = 0;
  for (int i=0;i<=m;++i){
    for (int j=0;j<=m;++j){
       r[j]-'0';
       l[i]-'0';
      //のりちんの自力の限界
  
  
  

Compiler output:
a.cc: In function 'int main()':
a.cc:9:29: warning: ignoring return value of 'std::vector<_Tp, _Alloc>::reference std::vector<_Tp, _Alloc>::operator[](size_type) [with _Tp = int; _Alloc = std::allocator<int>; reference = int&; size_type = long unsigned int]', declared with attribute 'nodiscard' [-Wunused-result]
    9 |   for (int i=0;i<=m;++i) l[i];
      |                             ^
In file included from /usr/include/c++/14/vector:66,
                 from /usr/include/c++/14/functional:64,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:53,
                 from a.cc:1:
/usr/include/c++/14/bits/stl_vector.h:1128:7: note: declared here
 1128 |       operator[](size_type __n) _GLIBCXX_NOEXCEPT
      |       ^~~~~~~~
a.cc:10:29: warning: ignoring return value of 'std::vector<_Tp, _Alloc>::reference std::vector<_Tp, _Alloc>::operator[](size_type) [with _Tp = int; _Alloc = std::allocator<int>; reference = int&; size_type = long unsigned int]', declared with attribute 'nodiscard' [-Wunused-result]
   10 |   for (int j=0;j<=m;++j) r[j];
      |                             ^
/usr/include/c++/14/bits/stl_vector.h:1128:7: note: declared here
 1128 |       operator[](size_type __n) _GLIBCXX_NOEXCEPT
      |       ^~~~~~~~
a.cc:16:17: error: expected '}' at end of input
   16 |        l[i]-'0';
      |                 ^
a.cc:14:27: note: to match this '{'
   14 |     for (int j=0;j<=m;++j){
      |                           ^
a.cc:16:17: error: expected '}' at end of input
   16 |        l[i]-'0';
      |                 ^
a.cc:13:25: note: to match this '{'
   13 |   for (int i=0;i<=m;++i){
      |                         ^
a.cc:16:17: error: expected '}' at end of input
   16 |        l[i]-'0';
      |                 ^
a.cc:4:11: note: to match this '{'
    4 | int main(){
      |           ^
Language: C++

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


int main() {
    cin.tie(nullptr);
    ios::sync_with_stdio(false);

    long long N,M;
    cin >> N >> M;
    long long L[M][2];
    rep(i,M){
        cin >> L[i][0] >> L[i][1];
    }
    long long ans=max(L[0][1]-L[M-1][0]+1,0);
    cout << ans << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:16:22: error: no matching function for call to 'max(long long int, int)'
   16 |     long long ans=max(L[0][1]-L[M-1][0]+1,0);
      |                   ~~~^~~~~~~~~~~~~~~~~~~~~~~
In file included from /usr/include/c++/14/algorithm:60,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:51,
                 from a.cc:1:
/usr/include/c++/14/bits/stl_algobase.h:257:5: note: candidate: 'template<class _Tp> constexpr const _Tp& std::max(const _Tp&, const _Tp&)'
  257 |     max(const _Tp& __a, const _Tp& __b)
      |     ^~~
/usr/include/c++/14/bits/stl_algobase.h:257:5: note:   template argument deduction/substitution failed:
a.cc:16:22: note:   deduced conflicting types for parameter 'const _Tp' ('long long int' and 'int')
   16 |     long long ans=max(L[0][1]-L[M-1][0]+1,0);
      |                   ~~~^~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/14/bits/stl_algobase.h:303:5: note: candidate: 'template<class _Tp, class _Compare> constexpr const _Tp& std::max(const _Tp&, const _Tp&, _Compare)'
  303 |     max(const _Tp& __a, const _Tp& __b, _Compare __comp)
      |     ^~~
/usr/include/c++/14/bits/stl_algobase.h:303:5: note:   candidate expects 3 arguments, 2 provided
In file included from /usr/include/c++/14/algorithm:61:
/usr/include/c++/14/bits/stl_algo.h:5706:5: note: candidate: 'template<class _Tp> constexpr _Tp std::max(initializer_list<_Tp>)'
 5706 |     max(initializer_list<_Tp> __l)
      |     ^~~
/usr/include/c++/14/bits/stl_algo.h:5706:5: note:   candidate expects 1 argument, 2 provided
/usr/include/c++/14/bits/stl_algo.h:5716:5: note: candidate: 'template<class _Tp, class _Compare> constexpr _Tp std::max(initializer_list<_Tp>, _Compare)'
 5716 |     max(initializer_list<_Tp> __l, _Compare __comp)
      |     ^~~
/usr/include/c++/14/bits/stl_algo.h:5716:5: note:   template argument deduction/substitution failed:
a.cc:16:22: note:   mismatched types 'std::initializer_list<_Tp>' and 'long long int'
   16 |     long long ans=max(L[0][1]-L[M-1][0]+1,0);
      |                   ~~~^~~~~~~~~~~~~~~~~~~~~~~
Language: Java

import java.util.*;
class Main{
  public static void main(String[] args){
    Scanner sc = new Scanner(System.in);
    int n = sc.nextInt();
    int m = sc.nextInt();
    int max = 0, min = 100000;
    for(int i = 0; i < m; i++){
      max = max(max , sc.nextInt());
      min = min(min , sc.nextInt());
    }
    if(min < max) System.out.println(0);
    else System.out.println(min - max + 1);
  } 
}


Compiler output:
Main.java:9: error: cannot find symbol
      max = max(max , sc.nextInt());
            ^
  symbol:   method max(int,int)
  location: class Main
Main.java:10: error: cannot find symbol
      min = min(min , sc.nextInt());
            ^
  symbol:   method min(int,int)
  location: class Main
2 errors
Language: Java

import java.util.*;
class Main{
  public static void main(String[] args){
    Scanner sc = new Scanner(System.in);
    int n = sc.nextInt();
    int m = sc.nextInt();
    int max = 0; min = 100000;
    for(int i = 0; i < m; i++){
      max = max(max , sc.nextInt());
      min = min(min , sc.nextInt());
    }
    if(min < max) System.out.println(0);
    else System.out.println(min - max + 1);
  } 
}

Compiler output:
Main.java:7: error: cannot find symbol
    int max = 0; min = 100000;
                 ^
  symbol:   variable min
  location: class Main
Main.java:9: error: cannot find symbol
      max = max(max , sc.nextInt());
            ^
  symbol:   method max(int,int)
  location: class Main
Main.java:10: error: cannot find symbol
      min = min(min , sc.nextInt());
      ^
  symbol:   variable min
  location: class Main
Main.java:10: error: cannot find symbol
      min = min(min , sc.nextInt());
                ^
  symbol:   variable min
  location: class Main
Main.java:12: error: cannot find symbol
    if(min < max) System.out.println(0);
       ^
  symbol:   variable min
  location: class Main
Main.java:13: error: cannot find symbol
    else System.out.println(min - max + 1);
                            ^
  symbol:   variable min
  location: class Main
6 errors
Language: C++

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

int main(){
    long long int a,b,ma,mi=1;
    cin>>a>>b;
    ma=a;
    vector<int>c(100000000);
    vector<int>d(100000000);
    for(int i=0;i<b;i++){
        cin>>c[i]>>d[i];
        if(c[i]>mi){
            mi=c[i];
        }
        if(d[i]<ma){
            ma=d[i];
        }
    }

    cout<<max(ma-mi+1,0)<<endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:23:14: error: no matching function for call to 'max(long long int, int)'
   23 |     cout<<max(ma-mi+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:23:14: note:   deduced conflicting types for parameter 'const _Tp' ('long long int' and 'int')
   23 |     cout<<max(ma-mi+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:23:14: note:   mismatched types 'std::initializer_list<_Tp>' and 'long long int'
   23 |     cout<<max(ma-mi+1,0)<<endl;
      |           ~~~^~~~~~~~~~~
Language: C++

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

int main() {
  int N,M;
  cin >> N >> M;
  vector<vector<int>> a(M,vector<int>(2));
  for (int i = 0; i < N; i++) {
    for (int j = 0; j < 2; j++) {
      cin >> a.at(i).at(j);
    }
  }
  int ans1 = 1;
  int ans2 = 100000;
  for (int i = 0; i < N; i++) {
    if (a.at(i).at(0) > ans1) {
      ans1 = a.at(i).at(j);
    }
    if (a.at(i).at(1) < ans2) {
      ans2 = a.at(i).at(1);
    }
  }
  cout << ans2 - ans1 +1 <<endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:17:25: error: 'j' was not declared in this scope
   17 |       ans1 = a.at(i).at(j);
      |                         ^
Language: C++

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

int main(){
  int N, M;
  cin >> N >> M;
  
  int max = 1, min = N;
  for(int i = 0; i < M; i++){
    int L, R;
    cin >> L >> R;
    if(max < L){
      max = L;
    }
    if(R < min){
      min = R;
    }
  }
  
  cout << min - max  1 << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:20:20: error: expected ';' before numeric constant
   20 |   cout << min - max  1 << endl;
      |                    ^ ~
      |                    ;
Language: C++

# indeednow_A_b
import sys
from sys import stdin
N, M = [int(x) for x in stdin.readline().rstrip().split()]
L = [0 for i in range(M)]
R = [0 for i in range(M)]
for i in range(M):
    L[i], R[i] = [int(x) for x in stdin.readline().rstrip().split()]
# print(L, R)
ans = set()

for k in range(M):
    temp = set()
    for l in range(L[k], R[k]+1):
        temp.add(l)
    if len(ans) != 0:
        ans = temp & ans
    else:
        ans = temp
print(len(ans))


Compiler output:
a.cc:1:3: error: invalid preprocessing directive #indeednow_A_b
    1 | # indeednow_A_b
      |   ^~~~~~~~~~~~~
a.cc:9:3: error: invalid preprocessing directive #print
    9 | # print(L, R)
      |   ^~~~~
a.cc:2:1: error: 'import' does not name a type
    2 | import sys
      | ^~~~~~
a.cc:2:1: note: C++20 'import' only available with '-fmodules-ts'
Language: C

#include <stdio.h>

int main(void){

  long n,m;
  scanf("%ld %ld", &n, &m);
  long l[m];
  long r[m];
  for (long i = 0; i < m; i++) {
    scanf("%ld %ld", &l[i], &r[i]);
  }
  long max_l = l[0];
  long min_r = r[0];
  for (long i = 1; i < m; i++) {
    if (l[i] > max_l) {
      max_l = l[i];
    }
    if (r[i] < min_r) {
      min_r = r[i];
    }
  }
  long answer = min_r-max_l+1;
  if (answer < 0) {
    answer = 0
  }
  printf("%ld\n", answer);

  return 0;
}

Compiler output:
main.c: In function 'main':
main.c:24:15: error: expected ';' before '}' token
   24 |     answer = 0
      |               ^
      |               ;
   25 |   }
      |   ~
Language: C++

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

int main()
{
    ios::sync_with_stdio(false); cin.tie(NULL); cout.tie(NULL);

    int N, M;
    cin >> N >> M;

    int min = 10000000;
    int max = 0;
    rep(i,M) {
        int l, r;
        cin >> l >> r;

        if (max < l) max = l;
        if (min > r) min = r;
    }

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

    return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:23:16: error: 'max' cannot be used as a function
   23 |     cout << max(0, min - max + 1) << endl;
      |             ~~~^~~~~~~~~~~~~~~~~~
Language: C++

def chmin(a, b)
    a > b ? b : a
  end
  
  def chmax(a, b)
    a > b ? a : b
  end
  
n,m = gets.split.map(&:to_i)
l = []
r = []
m.times do 
    k,b = gets.split.map(&:to_i)
    l << k
    r << b
end
c = 0
d = 1000010
(0..m - 1).each do |i|
    c = chmax(c,l[i])
    d = chmin(d,r[i])
end

puts c <= d ? d - c + 1 : 0

Compiler output:
a.cc:19:2: error: too many decimal points in number
   19 | (0..m - 1).each do |i|
      |  ^~~~
a.cc:1:1: error: 'def' does not name a type
    1 | def chmin(a, b)
      | ^~~
Language: C++

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

int main(){
  ll n, m;
  cin >> n >> m;
  ll count = 0;
  vector<ll> l(n);
  vector<ll> r(n);
  for (ll i= 0; i < m;i++){
    cin >> l.at(i) >> r.at(i);
  }
  sort(l.begin(), l.end());
  sort(r.begin(), r.end());
  recerse(r.begin(), r.end());
  for (ll i = 1; i <= n; i++)
  {
    bool ans = true;
    for (ll j = 0; j < m; j++){
      if(i<l.at(j)||i>r.at(j)){
        ans = false;
        break;
      }
    }
    if(ans){
      count++;
    }
  }
  cout << count << "\n";
}

Compiler output:
a.cc: In function 'int main()':
a.cc:17:3: error: 'recerse' was not declared in this scope
   17 |   recerse(r.begin(), r.end());
      |   ^~~~~~~
Language: C++

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

using namespace std;

int main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    cout.tie(0);

    ll n, m;
    cin>>n>>m;
    int l[m], r[m];
    int diff = INT_MAX, index = 0;
    for (int i=0;i<m;i++)
    {
        cin>>l[i]>>r[i];
        if (r[i]-l[i]<diff)
        {
            diff = r[i]-l[i];
            index = i;
        }
    }
    int arr[diff+1]={0};
    int start=l[index], finish = r[index];
    s = start;
    int finale=0;
    for (int i=0;i<m;i++)
    {
        if ((l[i]>=start && l[i]<=finish)||(r[i]>=start && r[i]<=finish)||(l[i]<=start&&r[i]>=finish))
        {
            int b = 0, e = 0;
            if (l[i]<start)
                b=start;
            else
                b = l[i];
            if (r[i]<finish)
                e = r[i];
            else
                e = finish;
            for (int k=b;k<=e;k++)
            {
                arr[k-s]++;
                if (i=m-1&&arr[k-s]==m)
                    finale++
            }
            start=b; finish=e;
        }
        else
            break;
    }
    cout<<finale;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:27:5: error: 's' was not declared in this scope
   27 |     s = start;
      |     ^
a.cc:46:29: error: expected ';' before '}' token
   46 |                     finale++
      |                             ^
      |                             ;
   47 |             }
      |             ~