func_code_string: #include <bits/stdc++.h>   using namespace std;   bool sorting(const pair<long long int, long long int>& a,                const pair<long long int, long long int>& b) {     if (a.first != b.first) {       return (a.first > b.first);     } else       return (!(a.second >= b.second));   }   int main() {     ios_base::sync_with_stdio(false);     cin.tie(NULL);     cout.tie(NULL);     long long int n, k;     cin >> n >> k;     pair<long long int, long long int> v[n];     for (int i = 0; i < n; ++i) {       cin >> v[i].first >> v[i].second;     }     sort(v, v + n, sorting);     long long int ans = 0;     for (int i = 0; i < n; ++i) {       if (v[k - 1].first == v[i].first && v[k - 1].second == v[i].second) {         ans++;       }     }     cout << ans;     return 0;   }   