Language: C++

#include <iostream>
#include <algorithm>
using namespace std;
#define int long long
int n, m;
#define rep(i, n) for (int i = 0; i < n; i++)
main()
{
    cin >> n >> m;
    int a[n];
    rep(i, n) cin >> a[i];
    rep(i, m)
    {
        int b, c;
        cin >> b >> c;
        sort(a, a + n);
        rep(j, min(b, lower_bound(a, a + n, c) - a)) a[j] = c;
    }
    int ans = 0;
    rep(i, n) ans += a[i];
    cout << ans << endl;
}

Compiler output:
a.cc:7:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
    7 | main()
      | ^~~~
a.cc: In function 'int main()':
a.cc:17:19: error: no matching function for call to 'min(long long int&, long int)'
   17 |         rep(j, min(b, lower_bound(a, a + n, c) - a)) a[j] = c;
      |                ~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
a.cc:6:39: note: in definition of macro 'rep'
    6 | #define rep(i, n) for (int i = 0; i < n; 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:233:5: note: candidate: 'template<class _Tp> constexpr const _Tp& std::min(const _Tp&, const _Tp&)'
  233 |     min(const _Tp& __a, const _Tp& __b)
      |     ^~~
/usr/include/c++/14/bits/stl_algobase.h:233:5: note:   template argument deduction/substitution failed:
a.cc:17:19: note:   deduced conflicting types for parameter 'const _Tp' ('long long int' and 'long int')
   17 |         rep(j, min(b, lower_bound(a, a + n, c) - a)) a[j] = c;
      |                ~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
a.cc:6:39: note: in definition of macro 'rep'
    6 | #define rep(i, n) for (int i = 0; i < n; i++)
      |                                       ^
/usr/include/c++/14/bits/stl_algobase.h:281:5: note: candidate: 'template<class _Tp, class _Compare> constexpr const _Tp& std::min(const _Tp&, const _Tp&, _Compare)'
  281 |     min(const _Tp& __a, const _Tp& __b, _Compare __comp)
      |     ^~~
/usr/include/c++/14/bits/stl_algobase.h:281:5: note:   candidate expects 3 arguments, 2 provided
In file included from /usr/include/c++/14/algorithm:61,
                 from a.cc:2:
/usr/include/c++/14/bits/stl_algo.h:5686:5: note: candidate: 'template<class _Tp> constexpr _Tp std::min(initializer_list<_Tp>)'
 5686 |     min(initializer_list<_Tp> __l)
      |     ^~~
/usr/include/c++/14/bits/stl_algo.h:5686:5: note:   candidate expects 1 argument, 2 provided
/usr/include/c++/14/bits/stl_algo.h:5696:5: note: candidate: 'template<class _Tp, class _Compare> constexpr _Tp std::min(initializer_list<_Tp>, _Compare)'
 5696 |     min(initializer_list<_Tp> __l, _Compare __comp)
      |     ^~~
/usr/include/c++/14/bits/stl_algo.h:5696:5: note:   template argument deduction/substitution failed:
a.cc:17:19: note:   mismatched types 'std::initializer_list<_Tp>' and 'long long int'
   17 |         rep(j, min(b, lower_bound(a, a + n, c) - a)) a[j] = c;
      |                ~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
a.cc:6:39: note: in definition of macro 'rep'
    6 | #define rep(i, n) for (int i = 0; i < n; i++)
      |                                       ^