#include <bits/stdc++.h> #define int long long using namespace std; signed main() { ios_base::sync_with_stdio(0); cin.tie(0); int n, m; cin >> n >> m; map<pair<int,int>,int> cnt; vector<int> frames; for (int i = 0; i < n; i++) { int s, v; cin >> s >> v; cnt[{s,v}]++; } for (int i = 0; i < m; i++) { int c; cin >> c; frames.push_back(c); } sort(frames.begin(),frames.end()); reverse(frames.begin(),frames.end()); int lstVal = 1e18; int res = 0; for (int i = 0; i < frames.size(); i++) { int c = frames[i]; pair<int,int> best = {-1,-1}; for (pair<pair<int,int>,int> pa : cnt) { if (pa.first.second <= lstVal && pa.first.first <= c) { if (pa.first.second>=best.second) best = pa.first; } } if (best.first != -1) { res++; lstVal = best.second; cnt[best]--; if (cnt[best] == 0) cnt.erase(best); } } cout << res << '\n'; }

joi2019_ho_t2.cpp: In function 'int main()':
joi2019_ho_t2.cpp:28:23: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   28 |     for (int i = 0; i < frames.size(); i++) {
      |                     ~~^~~~~~~~~~~~~~~