Language: C++

#include <bits/stdc++.h>
using namespace std;
#define rep(i, n) for (int i = 0; i < (int)(n); i++)
#define rep2(i, s, n) for (int i = (s); i < (int)(n); i++)
typedef long long ll;

int main() {
    int N, M;
    vector<string> S, T;
    cin >> N;
    for (int i = 0; i < N; i++){
        int s;
        cin >> s;
        S.push_back(s);
    }

    cin >> M;
    for (int i = 0; i < M; i++){
        int t;
        cin >> t;
        T.push_back(t);
    }

    sort(S.begin(), S.end())
    sort(T.begin(), T.end())

    int i = 0;
    int j = 0;
    int ans = 0;

    while (i <= N) {
        int tmp = 1;
        while (S[i] == S[i + 1]){
            tmp++;
            i++;
        }
        while (j <= M && T[j] == S[i]) {
            tmp--;
            j++;
        }
        ans = max(ans,ans+tmp);
    }
    cout << ans << endl;

}


Compiler output:
a.cc: In function 'int main()':
a.cc:14:20: error: no matching function for call to 'std::vector<std::__cxx11::basic_string<char> >::push_back(int&)'
   14 |         S.push_back(s);
      |         ~~~~~~~~~~~^~~
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:1283:7: note: candidate: 'void std::vector<_Tp, _Alloc>::push_back(const value_type&) [with _Tp = std::__cxx11::basic_string<char>; _Alloc = std::allocator<std::__cxx11::basic_string<char> >; value_type = std::__cxx11::basic_string<char>]'
 1283 |       push_back(const value_type& __x)
      |       ^~~~~~~~~
/usr/include/c++/14/bits/stl_vector.h:1283:35: note:   no known conversion for argument 1 from 'int' to 'const std::vector<std::__cxx11::basic_string<char> >::value_type&' {aka 'const std::__cxx11::basic_string<char>&'}
 1283 |       push_back(const value_type& __x)
      |                 ~~~~~~~~~~~~~~~~~~^~~
/usr/include/c++/14/bits/stl_vector.h:1300:7: note: candidate: 'void std::vector<_Tp, _Alloc>::push_back(value_type&&) [with _Tp = std::__cxx11::basic_string<char>; _Alloc = std::allocator<std::__cxx11::basic_string<char> >; value_type = std::__cxx11::basic_string<char>]'
 1300 |       push_back(value_type&& __x)
      |       ^~~~~~~~~
/usr/include/c++/14/bits/stl_vector.h:1300:30: note:   no known conversion for argument 1 from 'int' to 'std::vector<std::__cxx11::basic_string<char> >::value_type&&' {aka 'std::__cxx11::basic_string<char>&&'}
 1300 |       push_back(value_type&& __x)
      |                 ~~~~~~~~~~~~~^~~
a.cc:21:20: error: no matching function for call to 'std::vector<std::__cxx11::basic_string<char> >::push_back(int&)'
   21 |         T.push_back(t);
      |         ~~~~~~~~~~~^~~
/usr/include/c++/14/bits/stl_vector.h:1283:7: note: candidate: 'void std::vector<_Tp, _Alloc>::push_back(const value_type&) [with _Tp = std::__cxx11::basic_string<char>; _Alloc = std::allocator<std::__cxx11::basic_string<char> >; value_type = std::__cxx11::basic_string<char>]'
 1283 |       push_back(const value_type& __x)
      |       ^~~~~~~~~
/usr/include/c++/14/bits/stl_vector.h:1283:35: note:   no known conversion for argument 1 from 'int' to 'const std::vector<std::__cxx11::basic_string<char> >::value_type&' {aka 'const std::__cxx11::basic_string<char>&'}
 1283 |       push_back(const value_type& __x)
      |                 ~~~~~~~~~~~~~~~~~~^~~
/usr/include/c++/14/bits/stl_vector.h:1300:7: note: candidate: 'void std::vector<_Tp, _Alloc>::push_back(value_type&&) [with _Tp = std::__cxx11::basic_string<char>; _Alloc = std::allocator<std::__cxx11::basic_string<char> >; value_type = std::__cxx11::basic_string<char>]'
 1300 |       push_back(value_type&& __x)
      |       ^~~~~~~~~
/usr/include/c++/14/bits/stl_vector.h:1300:30: note:   no known conversion for argument 1 from 'int' to 'std::vector<std::__cxx11::basic_string<char> >::value_type&&' {aka 'std::__cxx11::basic_string<char>&&'}
 1300 |       push_back(value_type&& __x)
      |                 ~~~~~~~~~~~~~^~~
a.cc:24:29: error: expected ';' before 'sort'
   24 |     sort(S.begin(), S.end())
      |                             ^
      |                             ;
   25 |     sort(T.begin(), T.end())
      |     ~~~~                     
a.cc:31:12: error: 'i' was not declared in this scope
   31 |     while (i <= N) {
      |            ^