Language: C++

#include <iostream>
#include <bits/stdc++.h>
using namespace std;
int main()
{
    int N,M,K;
    cin >> N >> M >> K;
    long long Arr1[N+1], Arr2[M+1];
    vector <long long> cumm1, cumm2;
    cumm1.push_back(0); cumm2.push_back(0);
    for (int i = 1; i <= N; i++){
        cin >> Arr1[i];
        cumm1.push_back(cumm1[i-1] + Arr1[i]);
    }
    for (int i = 1; i <= M; i++){
        cin >> Arr2[i];
        cumm2.push_back(cumm2[i-1] + Arr2[i]);
    }
    auto upper = upper_bound(cumm1.begin(), cumm1.end(), K);
    long long idx1 = (upper - cumm1.begin()) - 1;
    long long minutes = K - cumm1[idx1];
    auto upper2 = upper_bound(cumm2.begin(), cumm2.end(), minutes);
    idx1 += (upper2 - cumm2.begin()) - 1;
    auto upper3 = upper_bound(cumm2.begin(), cumm2.end(), K);
    int idx2 = (upper3 - cumm2.begin()) - 1;
    minutes = K - cumm2[idx2];
    auto upper4 = upper_bound(cumm1.begin(), cumm1.end(), minutes);
    idx2 += (upper4 - cumm1.begin()) - 1;
    cout << max(idx1, idx2);
}


Compiler output:
a.cc: In function 'int main()':
a.cc:29:16: error: no matching function for call to 'max(long long int&, int&)'
   29 |     cout << max(idx1, idx2);
      |             ~~~^~~~~~~~~~~~
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:29:16: note:   deduced conflicting types for parameter 'const _Tp' ('long long int' and 'int')
   29 |     cout << max(idx1, idx2);
      |             ~~~^~~~~~~~~~~~
/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:2:
/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:29:16: note:   mismatched types 'std::initializer_list<_Tp>' and 'long long int'
   29 |     cout << max(idx1, idx2);
      |             ~~~^~~~~~~~~~~~