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

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

using namespace std;

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

    int n, m, l, r, al, ar;
    cin >> n >> m;

    al = 1, ar = n;
    while (m--)
    {
        cin >> l >> r;
        al = max(al, l);
        ar = min(ar, r);
    }
    cout << max(0, ar - al + 1) << '\n';

    return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:21:16: error: no matching function for call to 'max(int, long long int)'
   21 |     cout << max(0, ar - al + 1) << '\n';
      |             ~~~^~~~~~~~~~~~~~~~
In file included from /usr/include/c++/14/algorithm:60,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:51,
                 from a.cc:1:
/usr/include/c++/14/bits/stl_algobase.h:257:5: note: candidate: 'template<class _Tp> constexpr const _Tp& std::max(const _Tp&, const _Tp&)'
  257 |     max(const _Tp& __a, const _Tp& __b)
      |     ^~~
/usr/include/c++/14/bits/stl_algobase.h:257:5: note:   template argument deduction/substitution failed:
a.cc:21:16: note:   deduced conflicting types for parameter 'const _Tp' ('int' and 'long long int')
   21 |     cout << max(0, ar - al + 1) << '\n';
      |             ~~~^~~~~~~~~~~~~~~~
/usr/include/c++/14/bits/stl_algobase.h:303:5: note: candidate: 'template<class _Tp, class _Compare> constexpr const _Tp& std::max(const _Tp&, const _Tp&, _Compare)'
  303 |     max(const _Tp& __a, const _Tp& __b, _Compare __comp)
      |     ^~~
/usr/include/c++/14/bits/stl_algobase.h:303:5: note:   candidate expects 3 arguments, 2 provided
In file included from /usr/include/c++/14/algorithm:61:
/usr/include/c++/14/bits/stl_algo.h:5706:5: note: candidate: 'template<class _Tp> constexpr _Tp std::max(initializer_list<_Tp>)'
 5706 |     max(initializer_list<_Tp> __l)
      |     ^~~
/usr/include/c++/14/bits/stl_algo.h:5706:5: note:   candidate expects 1 argument, 2 provided
/usr/include/c++/14/bits/stl_algo.h:5716:5: note: candidate: 'template<class _Tp, class _Compare> constexpr _Tp std::max(initializer_list<_Tp>, _Compare)'
 5716 |     max(initializer_list<_Tp> __l, _Compare __comp)
      |     ^~~
/usr/include/c++/14/bits/stl_algo.h:5716:5: note:   template argument deduction/substitution failed:
a.cc:21:16: note:   mismatched types 'std::initializer_list<_Tp>' and 'int'
   21 |     cout << max(0, ar - al + 1) << '\n';
      |             ~~~^~~~~~~~~~~~~~~~
Language: C++

#include <iostream>
using namespace std;

int main()
{
    int n, m; cin >> n >> m;
    int maxL = INT_MIN, minR = INT_MAX, L, R;

    for(int i = 0; i < m; i++)
    {
        cin >> L >> R;
        if(L > maxL) maxL = L;
        if(R < minR) minR = R;
    }
    int res = minR - maxL + 1;
    if(res < 0) res = 0;
    cout << res << endl;

    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:7:16: error: 'INT_MIN' was not declared in this scope
    7 |     int maxL = INT_MIN, minR = INT_MAX, L, R;
      |                ^~~~~~~
a.cc:2:1: note: 'INT_MIN' is defined in header '<climits>'; this is probably fixable by adding '#include <climits>'
    1 | #include <iostream>
  +++ |+#include <climits>
    2 | using namespace std;
a.cc:11:16: error: 'L' was not declared in this scope
   11 |         cin >> L >> R;
      |                ^
a.cc:11:21: error: 'R' was not declared in this scope
   11 |         cin >> L >> R;
      |                     ^
a.cc:13:16: error: 'minR' was not declared in this scope
   13 |         if(R < minR) minR = R;
      |                ^~~~
a.cc:15:15: error: 'minR' was not declared in this scope
   15 |     int res = minR - maxL + 1;
      |               ^~~~
Language: C++

#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef pair<int,int> P;
typedef vector<int> V;
const long long MOD=1000000007LL;
const long long INFL=1LL << 60;
const int INF=1<<29;


int main() {
    int N,M;
    cin >>N>>M;
    int MAXL=0,MAXR=N-1;
    for(int i=0;i<M;i++){
        int L,R;
        cin >>L>>R;
        L--;R--;
        if(MAX L<L)MAXL=L;
        if(R<MAXR)MAXR=R;
    }
    if(MAXR-MAXL+1>0)cout <<MAXR-MAXL+1<<endl;
    else cout<<0<<endl;
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:19:12: error: 'MAX' was not declared in this scope; did you mean 'MAXR'?
   19 |         if(MAX L<L)MAXL=L;
      |            ^~~
      |            MAXR
a.cc:19:15: error: expected ')' before 'L'
   19 |         if(MAX L<L)MAXL=L;
      |           ~   ^~
      |               )
Language: C++

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

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

#include <iostream>
#include <cstdio>
#include <cstdlib>
#include <cstring>
#include <algorithm>
#include <string>
#include <vector>

using namespace std;
typedef long long unsigned int ll;
#define REP(i,n) for(int i=0;i<n;i++)
int main() {
    ll n,m,ans,t;
    scanf("%lld %lld", &n,&m);
    ll l[m],r[m];
    REP(i,m)
        scanf("%lld %lld",&l[i],&r[i]);
    REP(i1,n){
      REP(i2,m){
      	if(i1 >= l[i2] && i1 <=r[i2]) t = 1;
        else{ t = 0; break:}
      }
      ans += t;
    }
    printf( "%lld\n", ans );
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:21:27: error: expected ';' before ':' token
   21 |         else{ t = 0; break:}
      |                           ^
      |                           ;
a.cc:21:27: error: expected primary-expression before ':' token
Language: C++

#include <bits/stdc++.h>

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

typedef int64_t ll; typedef vector<int> VI; typedef pair<int,int> pii;
const int MD = 1e9+7; typedef vector<ll> VL;
void dbg(){ cerr << "\n"; } template <typename T,typename ...T2>
void dbg(const T& fst, const T2&...rst){ cerr << fst << ": "; dbg(rst...); }


int main()
{
	cin.tie(0); ios_base::sync_with_stdio(false);
	int n,m ;
	cin >>n >>m;
	VL l(m), r(m);
	rep(i, m) cin>>l[i] >>r[i];
	ll ml=-1LL<<60, mr=1LL<<60;
	rep(i, m){
		ml = max(l[i], ml);
		mr = min(r[i], mr);
	}
	dbg(ml, mr);
	cout << max(0LL, mr+1 -ml) <<"\n";
	return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:30:20: error: no matching function for call to 'max(long long int, ll)'
   30 |         cout << max(0LL, mr+1 -ml) <<"\n";
      |                 ~~~^~~~~~~~~~~~~~~
In file included from /usr/include/c++/14/algorithm:60,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:51,
                 from a.cc:1:
/usr/include/c++/14/bits/stl_algobase.h:257:5: note: candidate: 'template<class _Tp> constexpr const _Tp& std::max(const _Tp&, const _Tp&)'
  257 |     max(const _Tp& __a, const _Tp& __b)
      |     ^~~
/usr/include/c++/14/bits/stl_algobase.h:257:5: note:   template argument deduction/substitution failed:
a.cc:30:20: note:   deduced conflicting types for parameter 'const _Tp' ('long long int' and 'll' {aka 'long int'})
   30 |         cout << max(0LL, mr+1 -ml) <<"\n";
      |                 ~~~^~~~~~~~~~~~~~~
/usr/include/c++/14/bits/stl_algobase.h:303:5: note: candidate: 'template<class _Tp, class _Compare> constexpr const _Tp& std::max(const _Tp&, const _Tp&, _Compare)'
  303 |     max(const _Tp& __a, const _Tp& __b, _Compare __comp)
      |     ^~~
/usr/include/c++/14/bits/stl_algobase.h:303:5: note:   candidate expects 3 arguments, 2 provided
In file included from /usr/include/c++/14/algorithm:61:
/usr/include/c++/14/bits/stl_algo.h:5706:5: note: candidate: 'template<class _Tp> constexpr _Tp std::max(initializer_list<_Tp>)'
 5706 |     max(initializer_list<_Tp> __l)
      |     ^~~
/usr/include/c++/14/bits/stl_algo.h:5706:5: note:   candidate expects 1 argument, 2 provided
/usr/include/c++/14/bits/stl_algo.h:5716:5: note: candidate: 'template<class _Tp, class _Compare> constexpr _Tp std::max(initializer_list<_Tp>, _Compare)'
 5716 |     max(initializer_list<_Tp> __l, _Compare __comp)
      |     ^~~
/usr/include/c++/14/bits/stl_algo.h:5716:5: note:   template argument deduction/substitution failed:
a.cc:30:20: note:   mismatched types 'std::initializer_list<_Tp>' and 'long long int'
   30 |         cout << max(0LL, mr+1 -ml) <<"\n";
      |                 ~~~^~~~~~~~~~~~~~~
Language: C++

#include <bits/stdc++.h>

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

typedef int64_t ll; typedef vector<int> VI; typedef pair<int,int> pii;
const int MD = 1e9+7; typedef vector<ll> VL;
void dbg(){ cerr << "\n"; } template <typename T,typename ...T2>
void dbg(const T& fst, const T2&...rst){ cerr << fst << ": "; dbg(rst...); }


int main()
{
	cin.tie(0); ios_base::sync_with_stdio(false);
	int n,m ;
	cin >>n >>m;
	VL l(m), r(m);
	rep(i, m) cin>>l[i] >>r[i];
	ll ml=-1LL<<60, mr=1LL<<60;
	rep(i, m){
		ml = max(l[i], ml);
		mr = min(r[i], mr);
	}
	dbg(ml, mr);
	cout << max(0, mr+1 -ml) <<"\n";
	return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:30:20: error: no matching function for call to 'max(int, ll)'
   30 |         cout << max(0, mr+1 -ml) <<"\n";
      |                 ~~~^~~~~~~~~~~~~
In file included from /usr/include/c++/14/algorithm:60,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:51,
                 from a.cc:1:
/usr/include/c++/14/bits/stl_algobase.h:257:5: note: candidate: 'template<class _Tp> constexpr const _Tp& std::max(const _Tp&, const _Tp&)'
  257 |     max(const _Tp& __a, const _Tp& __b)
      |     ^~~
/usr/include/c++/14/bits/stl_algobase.h:257:5: note:   template argument deduction/substitution failed:
a.cc:30:20: note:   deduced conflicting types for parameter 'const _Tp' ('int' and 'll' {aka 'long int'})
   30 |         cout << max(0, mr+1 -ml) <<"\n";
      |                 ~~~^~~~~~~~~~~~~
/usr/include/c++/14/bits/stl_algobase.h:303:5: note: candidate: 'template<class _Tp, class _Compare> constexpr const _Tp& std::max(const _Tp&, const _Tp&, _Compare)'
  303 |     max(const _Tp& __a, const _Tp& __b, _Compare __comp)
      |     ^~~
/usr/include/c++/14/bits/stl_algobase.h:303:5: note:   candidate expects 3 arguments, 2 provided
In file included from /usr/include/c++/14/algorithm:61:
/usr/include/c++/14/bits/stl_algo.h:5706:5: note: candidate: 'template<class _Tp> constexpr _Tp std::max(initializer_list<_Tp>)'
 5706 |     max(initializer_list<_Tp> __l)
      |     ^~~
/usr/include/c++/14/bits/stl_algo.h:5706:5: note:   candidate expects 1 argument, 2 provided
/usr/include/c++/14/bits/stl_algo.h:5716:5: note: candidate: 'template<class _Tp, class _Compare> constexpr _Tp std::max(initializer_list<_Tp>, _Compare)'
 5716 |     max(initializer_list<_Tp> __l, _Compare __comp)
      |     ^~~
/usr/include/c++/14/bits/stl_algo.h:5716:5: note:   template argument deduction/substitution failed:
a.cc:30:20: note:   mismatched types 'std::initializer_list<_Tp>' and 'int'
   30 |         cout << max(0, mr+1 -ml) <<"\n";
      |                 ~~~^~~~~~~~~~~~~
Language: C++

#include <bits/stdc++.h>
using namespace std;
 
int main() {
  int N, M;
  cin >> N >> M;
  vector<int> a(M);
  vector<>int b(M);
  for(int i = 0; i < M; i++) {
    cin >> a.at(i) >> b.at(i);
  }
  
  int ans = 0;
  
  for(int i = 0; i < N; i++) {
    for(int j = 0; j < M; j++) {
      
      if (i+1 >= a.at(j) && i+1 <= b.at(j)) {
      }
      else {
        break;
      }
      if (j == M-1) {
        ans++;
      }
    }
  }
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:8:10: error: wrong number of template arguments (0, should be at least 1)
    8 |   vector<>int b(M);
      |          ^
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:428:11: note: provided for 'template<class _Tp, class _Alloc> class std::vector'
  428 |     class vector : protected _Vector_base<_Tp, _Alloc>
      |           ^~~~~~
a.cc:8:3: error: two or more data types in declaration of 'b'
    8 |   vector<>int b(M);
      |   ^~~~~~~~
a.cc:10:23: error: 'b' was not declared in this scope
   10 |     cin >> a.at(i) >> b.at(i);
      |                       ^
a.cc:18:36: error: 'b' was not declared in this scope
   18 |       if (i+1 >= a.at(j) && i+1 <= b.at(j)) {
      |                                    ^
Language: C++

#include <iostream>
#include <vector>
#include <algorithm>
#include <cmath>
#include <string>
#include <ios>
#include <iomanip>
#include <cstdlib>
using namespace std;
int main(void){
  int N.M;
  cin >> N >> M;
  
  vector<vector<long>>card(M,vector<long>(2,0));
  
  for(int i=0;i<M;i++){
    cin >> card[i][0];
    cin >> card[i][1];
  }
  
  vector<long>check(100001,0);
  
  for(int i=0;i<M;i++){
    for(int j=card[i][0];j<=card[i][1];j++){
      check[j]++;
    }
  }
  
  int ans = 0;
  for(int i=0,i<100001;i++){
    if(check[i] == M)
      ans++;
  }
  
  cout << ans << endl;
  
  return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:11:8: error: expected initializer before '.' token
   11 |   int N.M;
      |        ^
a.cc:12:10: error: 'N' was not declared in this scope
   12 |   cin >> N >> M;
      |          ^
a.cc:12:15: error: 'M' was not declared in this scope
   12 |   cin >> N >> M;
      |               ^
a.cc:30:16: error: expected ';' before '<' token
   30 |   for(int i=0,i<100001;i++){
      |                ^
      |                ;
a.cc:30:16: error: expected primary-expression before '<' token
Language: C++

#include <bits/stdc++.h>
#define IOS ios::sync_with_stdio(0);cin.tie(0);cout.tie(0);
#define fu(i,r,t) for(int i=r;i<=t;i++)
#define fd(i,r,t) for(int i=r;i>=t;i--)
#define Set set<int>
#define int long long
#define P pair<int,int>
const int maxn = 1e6;
const int INF = 1e18 +6;
using namespace std;
int n,m,a[maxn],b[maxn],c[maxn];

int32_t main() {
    IOS;
    cin>>n>>m;
    int Min=INF,Max=-INF;
    fu(i,1,m)
    {
        int x,y;
        cin>>x>>y;
        Min=min(Min,y);
        Max=max(Max,x);
    }
    cout<<max(Min-Max+1,0);
    return 0;
}


Compiler output:
a.cc: In function 'int32_t main()':
a.cc:24:14: error: no matching function for call to 'max(long long int, int)'
   24 |     cout<<max(Min-Max+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:24:14: note:   deduced conflicting types for parameter 'const _Tp' ('long long int' and 'int')
   24 |     cout<<max(Min-Max+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:24:14: note:   mismatched types 'std::initializer_list<_Tp>' and 'long long int'
   24 |     cout<<max(Min-Max+1,0);
      |           ~~~^~~~~~~~~~~~~
Language: C++

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

int main() {
  int n,m;
  cin >> n >> m;
  vector<int> l(m);
  vertor<int> r(m);
  for(int i=0;i<m;i++){
    cin >> l.at(i) >> r.at(i);
  }
  
  sort(l.begin(), l.end());
  sort(r.begin(), r.end());
  
  int ans = r.at(0) - l.at(m-1) +1;
  if(ans >0){
    cout << ans << endl;
  }
  else {
    cout << 0 << endl;
  }
}


Compiler output:
a.cc: In function 'int main()':
a.cc:8:3: error: 'vertor' was not declared in this scope; did you mean 'perror'?
    8 |   vertor<int> r(m);
      |   ^~~~~~
      |   perror
a.cc:8:10: error: expected primary-expression before 'int'
    8 |   vertor<int> r(m);
      |          ^~~
a.cc:10:23: error: 'r' was not declared in this scope
   10 |     cin >> l.at(i) >> r.at(i);
      |                       ^
a.cc:14:8: error: 'r' was not declared in this scope
   14 |   sort(r.begin(), r.end());
      |        ^
Language: C++

#include <iostream>
#include <numeric>
#include <vector>
#include <cmath>
#include <string>
#include <algorithm>
#include <set>
#include <map>
#include <queue>
#include <iomanip>
using namespace std;
using ll=long long;
const ll MOD=100000007;
const ll LINF=0x1fffffffffffffff;
const int INF=0x3fffffff;
#define rep(i,a,b) for(ll i=a;i<b;i++)
#define rrep(i,a,b) for(ll i=b-1;i>=a;i--)
#define range(i) (i).begin(),(i).end()
inline ll gcd(ll a, ll b) { return b ? gcd(b, a % b) : a; }
inline constexpr int intpow(ll a,ll b){
    if(b==0) return 1;
    ll ans=intpow(a,b/2);
    return ans*ans%MOD*(b&1?a:1)%MOD;
}
inline constexpr int modf(ll n){
    ll ans=1;
    rep(i,0,n) {ans=ans*(n-i)%MOD;}
    return ans;
}
inline long double median(vector<ll> v){
    ll size=v.size();
    sort(v.begin(),v.end());
    if (size % 2 == 1) return v[(size - 1) / 2];
    else return (v[(size / 2) - 1] + v[size / 2]) / 2;
}


int main(){
    ll n,m;
    cin>>n>>m;
    vector<ll> l(m),r(m);
    rep(i,0,m) cin>>l[i]>>r[i];
    ll ln=*max_element(range(l)),rn=*min_element(range(r));
    if(rn-ln+1<0) rn-ln+1=0;
    cout<<min(rn-ln+1,n);
}


Compiler output:
a.cc: In function 'int main()':
a.cc:44:24: error: lvalue required as left operand of assignment
   44 |     if(rn-ln+1<0) rn-ln+1=0;
      |                   ~~~~~^~
Language: C++

#include <cmath>
#include <cstdio>
#include <vector>
#include <iostream>
#include <algorithm>
#include <queue>
#include <string>
#include <bitset>
#include <list>
#include <iomanip>
using namespace std;
#define rep(i,a,n) for(ll i=a;i<n;i++)
#define rrep(i,a,n) for(ll i=n;i>=a;i--)
#define elif else if
#define all(s) s.begin(),s.end()
typedef long long ll;
typedef pair<ll,ll> P;
const ll INF = 1e+17;
const ll MODcdf = 998244353;
bool pairCompare(const P& firstElof,const P& secondElof){
    return firstElof.first<secondElof.first;
}
string A="ABCDEFGHIJKLMNOPQRSTUVWXYZ";
string a="abcdefghijklmnopqrstuvwxyz";
int main(){
    cin.tie(0);
    ios_base::sync_with_stdio(false);
    ll n,m;cin>>n>>m;
    ll l[m],r[m];
    rep(i,0,m)cin>>l[i]>>r[i];
    ll st=l[0];
    ll gl=r[0];
    rep(i,1,m){
        st=max(st,l[i]);
        gl=min(gl,r[i]);
    }
    gl=min(gl,n)
    ll ans=gl-st+1;
    cout<<ans<<endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:37:17: error: expected ';' before 'll'
   37 |     gl=min(gl,n)
      |                 ^
      |                 ;
   38 |     ll ans=gl-st+1;
      |     ~~           
a.cc:39:11: error: 'ans' was not declared in this scope; did you mean 'abs'?
   39 |     cout<<ans<<endl;
      |           ^~~
      |           abs
Language: C++

#include <algorithm>
#include <iostream>
#include <map>
#include <numeric>
#include <set>
#include <string>
#include <unordered_map>
#include <unordered_set>
#include <vector>
#include <queue>
#define MOD (1000000007l)
#define rep(i, n) for(long i = 0; i < n; i++)

using namespace std;

int main(void) {
  cout.precision(12);

  long N, M;
  cin >> N >> M;

  long minL = 0;
  long maxR = N+1;

  rep (i, M) {
    long L, R;
    cin >> L >> R;
    minL = max(minL, L);
    maxR = min(maxR, R);
  }

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

  return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:32:14: error: no matching function for call to 'max(int, long int)'
   32 |   cout << max(0, (maxR - minL + 1)) << endl;
      |           ~~~^~~~~~~~~~~~~~~~~~~~~~
In file included from /usr/include/c++/14/algorithm:60,
                 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:32:14: note:   deduced conflicting types for parameter 'const _Tp' ('int' and 'long int')
   32 |   cout << max(0, (maxR - minL + 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:32:14: note:   mismatched types 'std::initializer_list<_Tp>' and 'int'
   32 |   cout << max(0, (maxR - minL + 1)) << endl;
      |           ~~~^~~~~~~~~~~~~~~~~~~~~~
Language: C++

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

int main() {
	int n, m;
	int l[100000], r[100000];
	bool ok[100010];
	int min = 0, max = 100000;
	cin >> n >> m;
	for (int i = 0; i < m; i++)
	{
		ok[i] = true;
	}
	for (int i = 0; i < m; i++)
	{
		cin >> l[i] >> r[i];
		if (l[i] >= min)
		{
			min = l[i];
		}
		if (r[i] <= max)
		{
			max = r[i];
		}
	}
	//cout << max << "," << min << endl;
	cout << max - min+1;



Compiler output:
a.cc: In function 'int main()':
a.cc:29:29: error: expected '}' at end of input
   29 |         cout << max - min+1;
      |                             ^
a.cc:6:12: note: to match this '{'
    6 | int main() {
      |            ^
Language: C++

	cout << iMax - iMin + 1 << endl;

	return 0;


Compiler output:
a.cc:1:9: error: 'cout' does not name a type
    1 |         cout << iMax - iMin + 1 << endl;
      |         ^~~~
a.cc:3:9: error: expected unqualified-id before 'return'
    3 |         return 0;
      |         ^~~~~~
Language: C++

#include <iostream>
#include <string>
#include <iomanip>
#include <vector>
#include <functional>
#include <algorithm>
using namespace std;

typedef pair<int,int> P;
typedef vector<int> VI;

int n,m;
string s;

int main(){
	cin>>n>>m;
	int sta=1
	int en=n;
	//VI l(m+1);VI r(m+1);
	int a,b;
	for(int i=0;i<m;i++){
		cin>>a>>b;
		sta=(sta>a?sta:a);
		en=(en<b?en:b);
		}
	int ans=sta-en+1;
	if(ans<0)ans=0;
	cout<<ans<<endl;	
}
- [ ] 


Compiler output:
a.cc: In function 'int main()':
a.cc:18:9: error: expected ',' or ';' before 'int'
   18 |         int en=n;
      |         ^~~
a.cc:24:17: error: 'en' was not declared in this scope; did you mean 'n'?
   24 |                 en=(en<b?en:b);
      |                 ^~
      |                 n
a.cc:26:21: error: 'en' was not declared in this scope; did you mean 'n'?
   26 |         int ans=sta-en+1;
      |                     ^~
      |                     n
a.cc: At global scope:
a.cc:30:1: error: expected unqualified-id before '-' token
   30 | - [ ]
      | ^
Language: C++

#include <bits/stdc++.h>
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Weverything"
#include <boost/multi_array.hpp>
#include <boost/optional.hpp>
#include <boost/range/adaptors.hpp>
#include <boost/range/algorithm.hpp>
#include <boost/range/irange.hpp>
#pragma clang diagnostic pop

using namespace std;

int64_t solve(int64_t n, int64_t m, std::vector<int64_t> ls,
              std::vector<int64_t> rs) {
  int64_t l = 0;
  int64_t r = m;
  for (int i = 0; i < n; ++i) {
    l = std::max(ls[i], l);
    r = std::max(rs[i] + 1, r);
  }
  return std::max(r - l, 0);
}

int main() {
  std::cin.tie(nullptr);
  std::ios::sync_with_stdio(false);
  int64_t n;
  std::cin >> n;
  int64_t m;
  std::cin >> m;
  std::vector<int64_t> ls(m);
  std::vector<int64_t> rs(m);
  for (int i = 0; i < m; i++) {
    std::cin >> ls[i];
    std::cin >> rs[i];
    ls[i] --;
    rs[i] --;
  }
  auto const res = solve(n, m, std::move(ls), std::move(rs));
  std::cout << res << std::endl;
  return 0;
}


Compiler output:
a.cc:4:10: fatal error: boost/multi_array.hpp: No such file or directory
    4 | #include <boost/multi_array.hpp>
      |          ^~~~~~~~~~~~~~~~~~~~~~~
compilation terminated.
Language: C++

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

// typedef
//------------------------------------------
typedef pair<int, int> PII;
typedef vector<int> VI;
typedef vector<VI> VVI;
typedef vector<string> VS;
typedef vector<PII> VP;

// rep
//------------------------------------------
#define FOR(i, a, b) for (int i = (a); i < (b); ++i)
#define REP(i, n) FOR(i, 0, n)
#define ALL(x) (x).begin(), (x).end()
#define DEBUG(x) cerr << #x << ": " << x << '\n'


VI l(10010);
VI r(10010);

int n, m;
signed main()
{
      cin >> n >> m;
      l.resize(m);
      r.resize(m);
      REP(i, m){
          cin >> l[i] >> r[i];
      }  
      sort(ALL(l));
      sort(ALL(r));

      cout << max(min(n, r.front() - l.back() + 1), 0) << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:36:18: error: no matching function for call to 'max(const long long int&, int)'
   36 |       cout << max(min(n, r.front() - l.back() + 1), 0) << endl;
      |               ~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from /usr/include/c++/14/algorithm:60,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:51,
                 from a.cc: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:36:18: note:   deduced conflicting types for parameter 'const _Tp' ('long long int' and 'int')
   36 |       cout << max(min(n, r.front() - l.back() + 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:
/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:36:18: note:   mismatched types 'std::initializer_list<_Tp>' and 'long long int'
   36 |       cout << max(min(n, r.front() - l.back() + 1), 0) << endl;
      |               ~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Language: Java

import java.io.PrintStream;
import java.util.Scanner;

import library.common.Predef;


public class Main {
    static final Scanner     sc = new Scanner(System.in);
    static final PrintStream so = System.out;
    
    public static void main(String[] args) {
        int n = ni();
        int m = ni();

        int left = 0;
        int right = n+1;
        for (int i = 0; i < m; i++) {
            left = Math.max(left, ni());
            right = Math.min(right, ni());
        }
        
        int diff = right - left + 1;
        so.println(Math.max(diff, 0));
    }
    
    private static int ni() {
        return sc.nextInt();
    }

    private static long nl() {
        return sc.nextLong();
    }

    private static String ns() {
        return sc.next();
    }

    private static char[] nsToChars() {
        return sc.next().toCharArray();
    }

    private static int[] nints(int n) {
        return nints(n, 0);
    }

    private static int[] nints(int n, int padding) {
        int[] a = new int[padding + n];
        for (int i = 0; i < n; i++)
            a[padding + i] = ni();
        return a;
    }
}


Compiler output:
Main.java:4: error: package library.common does not exist
import library.common.Predef;
                     ^
1 error
Language: C++

#include<bits/stdc++.h>
using namespace std;
#define ll long long
typedef pair<ll,ll> P;
#define M 1000000007
int main(){
  ll n,m,ma=-1,mi=M,c=0;
  cin>>n>>m;
  vector<ll> a(m),b(m);
  for(int i=0;i<m;i++){
    cin>>a[i]>>b[i];
    ma=max(a[i],ma),mi=min(b[i],mi);
  }
  cout<<max(mi-ma+1,0);}

Compiler output:
a.cc: In function 'int main()':
a.cc:14:12: error: no matching function for call to 'max(long long int, int)'
   14 |   cout<<max(mi-ma+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:14:12: note:   deduced conflicting types for parameter 'const _Tp' ('long long int' and 'int')
   14 |   cout<<max(mi-ma+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:14:12: note:   mismatched types 'std::initializer_list<_Tp>' and 'long long int'
   14 |   cout<<max(mi-ma+1,0);}
      |         ~~~^~~~~~~~~~~
Language: C++

#include <iostream>
#include <string>
#include <iomanip>
#include <vector>
#include <functional>
#include <algorithm>
using namespace std;

typedef pair<int,int> P;
typedef vector<int> VI;

int n,m;
string s;

int main(){
	cin>>n>>m;
	int sta=1
	int end=n;
	//VI l(m+1);VI r(m+1);
	int a,b;
	for(int i=0;i<m;i++){
		cin>>a>>b;
		sta=(sta>a?sta:a);
		end=(end<b?end:b);
		}
	int ans=sta-end+1;
	if(ans<0)ans=0;
	cout<<ans<<endl;	
}


Compiler output:
a.cc: In function 'int main()':
a.cc:18:9: error: expected ',' or ';' before 'int'
   18 |         int end=n;
      |         ^~~
a.cc:24:32: error: overloaded function with no contextual type information
   24 |                 end=(end<b?end:b);
      |                                ^
a.cc:24:22: error: parse error in template argument list
   24 |                 end=(end<b?end:b);
      |                      ^~~~~~~~~~~
a.cc:24:33: error: overloaded function with no contextual type information
   24 |                 end=(end<b?end:b);
      |                                 ^
a.cc:26:20: error: invalid operands of types 'int' and '<unresolved overloaded function type>' to binary 'operator-'
   26 |         int ans=sta-end+1;
      |                 ~~~^~~~
Language: C++

#include "bits/stdc++.h"
using namespace std;
using ll = long long;
using pii = pair<int, int>;
using pll = pair<ll, ll>;
using vi = vector<int>;
using vl = vector<ll>;
using vvi = vector<vi>;
using vvl = vector<vl>;
const int INF = 1 << 28;
const ll MOD = 1'000'000'007;
template <class T> bool chmax(T &a, const T &b) { return (a < b) ? (a = b, 1) : 0; }
template <class T> bool chmin(T &a, const T &b) { return (b < a) ? (a = b, 1) : 0; }

int main() {
    ll n, m;
    cin >> n >> m;
    vl l(m), r(m);
    for (int i = 0; i < m; ++i) {
        cin >> l[i] >> r[i];
    }
    ll mi = 1;
    ll ma = n;
    for (int i = 0; i < m; ++i) {
        chmax(mi, l[i]);
        chmin(ma, r[i]);
    }
    cout << max(0, ma - mi + 1) << endl;
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:28:16: error: no matching function for call to 'max(int, ll)'
   28 |     cout << max(0, ma - mi + 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: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:28:16: note:   deduced conflicting types for parameter 'const _Tp' ('int' and 'll' {aka 'long long int'})
   28 |     cout << max(0, ma - mi + 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:28:16: note:   mismatched types 'std::initializer_list<_Tp>' and 'int'
   28 |     cout << max(0, ma - mi + 1) << endl;
      |             ~~~^~~~~~~~~~~~~~~~
Language: C++

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


Compiler output:
a.cc: In function 'int main()':
a.cc:4:11: error: expected unqualified-id before ';' token
    4 |   int n,m,;cin>>n>>m;
      |           ^
Language: C++

#include <iostream>
#include <iomanip>
#include <vector>
#include <algorithm>
#include <numeric>
#include <functional>
#include <cmath>
#include <string>
#include <map>

using namespace std;
int main(int argc, const char * argv[]) {
    
    int n, m;
    cin >> n >> m;
    int mi = 0, mx = INT_MAX;
    for (int i=0; i< n; i++) {
        int l, r;
        cin >> l >> r;
        mi = max(mi, l);
        mx = min(mx, r);
    }

    cout << mx - mi + 1 << endl;
    return 0;
}

Compiler output:
a.cc: In function 'int main(int, const char**)':
a.cc:16:22: error: 'INT_MAX' was not declared in this scope
   16 |     int mi = 0, mx = INT_MAX;
      |                      ^~~~~~~
a.cc:10:1: note: 'INT_MAX' is defined in header '<climits>'; this is probably fixable by adding '#include <climits>'
    9 | #include <map>
  +++ |+#include <climits>
   10 |
Language: C++

#include <iostream>
#include <algorithm>

int main() {
  int n, m;
  cin >> n >> m;
  int l = 1, r = n;
  for (int i = 0; i < m; i++) {
  	int x, y;
    std::cin >> x >> y;
    l = std::max(l, x);
    r = std::min(r, y);
  }
  std::cout << l << " " << r << std::endl;
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:6:3: error: 'cin' was not declared in this scope; did you mean 'std::cin'?
    6 |   cin >> n >> m;
      |   ^~~
      |   std::cin
In file included from a.cc:1:
/usr/include/c++/14/iostream:62:18: note: 'std::cin' declared here
   62 |   extern istream cin;           ///< Linked to standard input
      |                  ^~~
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)
#define all(x) (x).begin(), (x).end()
#define bit(x) (1L << (x))
using ll = long long;
using namespace std;

template<typename T>
vector<T> make_v(size_t a,T b){return vector<T>(a,b);}
 
template<typename... Ts>
auto make_v(size_t a,Ts... ts){
  return vector<decltype(make_v(ts...))>(a,make_v(ts...));
}

int main() {
  int n, m; cin >> n >> m;
  vector<int> c(n+1, 0);
  REP(i, m){
    int l, r; cin >> l >> r;
    --l; --r;

    c[l] += 1;
    c[r+1] -= 1;
  }

  REP(i, n) c[i + 1] += c[i];

  int ans = 0;
  REP(i, n;
    if(c[i] == m) ans++;
  }

  cout << ans << endl;

  return 0;
}


Compiler output:
a.cc:38:2: error: unterminated argument list invoking macro "REP"
   38 | }
      |  ^
a.cc: In function 'int main()':
a.cc:31:3: error: 'REP' was not declared in this scope
   31 |   REP(i, n;
      |   ^~~
a.cc:31:6: error: expected '}' at end of input
   31 |   REP(i, n;
      |      ^
a.cc:17:12: note: to match this '{'
   17 | int main() {
      |            ^
Language: C++

#include<bits/stdc++.h>
using namespace std;
int main(){
	int N,M;cin>>N>>M;
	int l=0,r=N+1;
	for(int i=0;i<M;i++){
		cin>>a>>b;
		l=max(l,a);
		r=min(r,b);
	}if(l<=r){
		cout<<r-l+1<<endl;
	}else{
		cout<<0<<endl;
	}
}

Compiler output:
a.cc: In function 'int main()':
a.cc:7:22: error: 'a' was not declared in this scope
    7 |                 cin>>a>>b;
      |                      ^
a.cc:7:25: error: 'b' was not declared in this scope
    7 |                 cin>>a>>b;
      |                         ^
Language: C++

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



int main() {
	long long int N, M;
	cin >> N >> M;
	long long int ansmin = -1, ansmax = 100000000LL;
	for(size_t i = 0; i < M; i++) {
		long long int L, R;
		cin >> L >> R;
		ansmin = max(L, ansmin);
		ansmax = min(R, ansmax);
	}
	cout << max(0,ansmax - ansmin + 1) << endl;
}



Compiler output:
a.cc: In function 'int main()':
a.cc:18:20: error: no matching function for call to 'max(int, long long int)'
   18 |         cout << max(0,ansmax - ansmin + 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:1:
/usr/include/c++/14/bits/stl_algobase.h:257:5: note: candidate: 'template<class _Tp> constexpr const _Tp& std::max(const _Tp&, const _Tp&)'
  257 |     max(const _Tp& __a, const _Tp& __b)
      |     ^~~
/usr/include/c++/14/bits/stl_algobase.h:257:5: note:   template argument deduction/substitution failed:
a.cc:18:20: note:   deduced conflicting types for parameter 'const _Tp' ('int' and 'long long int')
   18 |         cout << max(0,ansmax - ansmin + 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:18:20: note:   mismatched types 'std::initializer_list<_Tp>' and 'int'
   18 |         cout << max(0,ansmax - ansmin + 1) << endl;
      |                 ~~~^~~~~~~~~~~~~~~~~~~~~~~
Language: C++

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

void solve()
{
    int n, m; cin >> n >> m;
    priority_queue<ll, vector<int>, greater<int>> q;
    ll ans = 0;
    for (int i = 0; i < n; ++i) {
        ll val; cin >> val;
        q.push(val);
        ans += val;
    }
    for (int i = 0; i < m; ++i) {
        int b, c; cin >> b >> c;
        while (b-- > 0 && q.top() < c) {
            ans -= q.top();
            q.pop();
            q.push(c);
            ans += c;
        }
    }
    cout << ans << '\n';
}

int main()
{
    ios::sync_with_stdio(false);
    cin.tie(nullptr);
    solve();
    return 0;
}

Compiler output:
In file included from /usr/include/c++/14/queue:66,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:157,
                 from a.cc:1:
/usr/include/c++/14/bits/stl_queue.h: In instantiation of 'class std::priority_queue<long long int, std::vector<int>, std::greater<int> >':
a.cc:8:51:   required from here
    8 |     priority_queue<ll, vector<int>, greater<int>> q;
      |                                                   ^
/usr/include/c++/14/bits/stl_queue.h:520:67: error: static assertion failed: value_type must be the same as the underlying container
  520 |       static_assert(is_same<_Tp, typename _Sequence::value_type>::value,
      |                                                                   ^~~~~
/usr/include/c++/14/bits/stl_queue.h:520:67: note: 'std::integral_constant<bool, false>::value' evaluates to false
Language: C++

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

const int MOD = 1000000007;
const int INF = 1e9;

int main(){
  long lnog n;
  long long m;
  const long long max_n = 1e5;
  long long a[max_n + 1];
  pair<long long, long long> ope[max_n + 1];

  cin >> n >> m;
  for(int i = 0; i < n; i++){
    cin >> a[i];
  }
  for(int j = 0; j < m; j++){
    cin >> ope[j].second >> ope[j].first;
  }
  sort(a, a+n);
  sort(ope, ope+m, greater<>());

  long long sum = 0;
  long long i = 0;
  long long f = 0;
  long long last_c = 0;
  for(int j = 0; j < m; j++){
    long long b, c;
    b = ope[j].second;
    c = ope[j].first;

    f = i + b - 1;
    if(f >= n) f = n - 1;
    // if(f < 0) break;

    if(a[f] < c) {
      sum += (f - i + 1) * c;
      i += b;
    }else{
      last_c = c;
      break;
    }
  }

  for(int j = i; j < n; j++){
    if(a[j] < last_c) sum += last_c;
    else sum += a[j];
  }

  cout << sum << endl;

  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:8:13: error: expected initializer before 'n'
    8 |   long lnog n;
      |             ^
a.cc:14:10: error: 'n' was not declared in this scope
   14 |   cin >> n >> m;
      |          ^