Language: C++

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

int main()
{
    long long n, m;
    cin >> n >> m;
    vector< long long > a, b(m), c(m);
    map< long long, int > mp;
    for (long long i = 0; i < n; i++) {
        long long A;
        cin >> A;
        if (mp.find(A) == mp.end()) {
            mp[A] = 1;
            a.push_back(A);
        } else {
            mp[A]++;
        }
    }

    for (long long i = 0; i < m; i++) {
        cin >> b[i] >> c[i];
    }

    // sort(a.begin(), a.end());
    // cout << endl;
    // for (int i = 0; i < a.size(); i++) {
    //     cout << a[i] << " " << mp[a[i]] << endl;
    // }

    for (long long i = 0; i < m; i++) {
        sort(a.begin(), a.end());
        reverse(a.begin(), a.end());
        if (mp.find(c[i]) == mp.end()) {
            a.push_back(c[i]);
            mp[c[i]] = b[i];
        } else {
            mp[c[i]] += b[i];
        }
    }

    sort(a.begin(), a.end());
    reverse(a.begin(), a.end());

    // cout << endl;
    // for (int i = 0; i < a.size(); i++) {
    //     cout << a[i] << " " << mp[a[i]] << endl;
    // }

    long long cnt = 0;
    long long ans = 0;
    for (long long i = 0; i < a.size(); i++) {
        cnt += mp[a[i]];
        if (cnt <= n) {
            ans += a[i] * mp[a[i]];
            if (cnt == n)
                break;
        } else {
            ans += a[i] * max(mp[a[i]] - (cnt - n), 0);
            break;
        }
    }
    cout << ans << endl;
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:59:30: error: no matching function for call to 'max(long long int, int)'
   59 |             ans += a[i] * max(mp[a[i]] - (cnt - n), 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:59:30: note:   deduced conflicting types for parameter 'const _Tp' ('long long int' and 'int')
   59 |             ans += a[i] * max(mp[a[i]] - (cnt - n), 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:59:30: note:   mismatched types 'std::initializer_list<_Tp>' and 'long long int'
   59 |             ans += a[i] * max(mp[a[i]] - (cnt - n), 0);
      |                           ~~~^~~~~~~~~~~~~~~~~~~~~~~~~