提出 #74736069

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ソースコード 拡げる

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

#define int long long

void solve() {

    int n, k; cin >> n >> k;

    vector<pair<int, int>> info(n);

    for(int i = 0; i < n; i++){
        int a, b; cin >> a >> b;

        info[i] = {b, a};
    }

    sort(info.rbegin(), info.rend());

    priority_queue<int, vector<int>, greater<int>> pq;

    int ans = 0, sum = 0;
    for(auto &[deff, att]: info){

        pq.push(att);
        sum += att;

        if(pq.size() > k){
            int u = pq.top();
            pq.pop();

            sum -= u;
        }

        if(pq.size() == k){
            ans = max(ans, sum * deff);
        }

    }

    cout << ans << endl;

}

signed main() {
    ios::sync_with_stdio(false);
    cin.tie(nullptr);

    int tc = 1;
    // cin >> tc;
    while (tc--) solve();
}

提出情報

コンパイルエラー

./Main.cpp: In function 'void solve()':
./Main.cpp:28:22: warning: comparison of integer expressions of different signedness: 'std::priority_queue<long long int, std::vector<long long int>, std::greater<long long int> >::size_type' {aka 'long unsigned int'} and 'long long int' [-Wsign-compare]
   28 |         if(pq.size() > k){
      |            ~~~~~~~~~~^~~
./Main.cpp:35:22: warning: comparison of integer expressions of different signedness: 'std::priority_queue<long long int, std::vector<long long int>, std::greater<long long int> >::size_type' {aka 'long unsigned int'} and 'long long int' [-Wsign-compare]
   35 |         if(pq.size() == k){
      |            ~~~~~~~~~~^~~~

ジャッジ結果