Language: C++

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

int main(){
  long int n,m;
  cin >> n >> m;
  long int h[1000000];
  int i,ma[1000000];
  for(i=1;i<=n;i++){
    cin >> h[i];
    ma[i]=0;
  }
  long int a[1000000],b[1000000];
  for(i=1;i<=m;i++){
    cin >> a[i] >> b[i];
    ma[a[i]]=max(ma[a[i]],h[b[i]]);
    ma[b[i]]=max(ma[b[i]],h[a[i]]);
  }
  int ans = 0;
  for(i=1;i<=n;i++){
    if(h[i]>ma[i]){
      ans+=h[i];
    }
  }
  cout << ans << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:21:17: error: no matching function for call to 'max(int&, long int&)'
   21 |     ma[a[i]]=max(ma[a[i]],h[b[i]]);
      |              ~~~^~~~~~~~~~~~~~~~~~
In file included from /usr/include/c++/14/string:51,
                 from /usr/include/c++/14/bits/locale_classes.h:40,
                 from /usr/include/c++/14/bits/ios_base.h:41,
                 from /usr/include/c++/14/ios:44,
                 from /usr/include/c++/14/ostream:40,
                 from /usr/include/c++/14/iostream:41,
                 from a.cc:1:
/usr/include/c++/14/bits/stl_algobase.h:257:5: note: candidate: 'template<class _Tp> constexpr const _Tp& std::max(const _Tp&, const _Tp&)'
  257 |     max(const _Tp& __a, const _Tp& __b)
      |     ^~~
/usr/include/c++/14/bits/stl_algobase.h:257:5: note:   template argument deduction/substitution failed:
a.cc:21:17: note:   deduced conflicting types for parameter 'const _Tp' ('int' and 'long int')
   21 |     ma[a[i]]=max(ma[a[i]],h[b[i]]);
      |              ~~~^~~~~~~~~~~~~~~~~~
/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 /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:51,
                 from a.cc:3:
/usr/include/c++/14/bits/stl_algo.h:5706:5: note: candidate: 'template<class _Tp> constexpr _Tp std::max(initializer_list<_Tp>)'
 5706 |     max(initializer_list<_Tp> __l)
      |     ^~~
/usr/include/c++/14/bits/stl_algo.h:5706:5: note:   candidate expects 1 argument, 2 provided
/usr/include/c++/14/bits/stl_algo.h:5716:5: note: candidate: 'template<class _Tp, class _Compare> constexpr _Tp std::max(initializer_list<_Tp>, _Compare)'
 5716 |     max(initializer_list<_Tp> __l, _Compare __comp)
      |     ^~~
/usr/include/c++/14/bits/stl_algo.h:5716:5: note:   template argument deduction/substitution failed:
a.cc:21:17: note:   mismatched types 'std::initializer_list<_Tp>' and 'int'
   21 |     ma[a[i]]=max(ma[a[i]],h[b[i]]);
      |              ~~~^~~~~~~~~~~~~~~~~~
a.cc:22:17: error: no matching function for call to 'max(int&, long int&)'
   22 |     ma[b[i]]=max(ma[b[i]],h[a[i]]);
      |              ~~~^~~~~~~~~~~~~~~~~~
/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:22:17: note:   deduced conflicting types for parameter 'const _Tp' ('int' and 'long int')
   22 |     ma[b[i]]=max(ma[b[i]],h[a[i]]);
      |              ~~~^~~~~~~~~~~~~~~~~~
/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
/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:22:17: note:   mismatched types 'std::initializer_list<_Tp>' and 'int'
   22 |     ma[b[i]]=max(ma[b[i]],h[a[i]]);
      |              ~~~^~~~~~~~~~~~~~~~~~