Submission #123225

#	Time	Username	Problem	Language	Result	Execution time	Memory
123225		cvele	Kisik (COCI19_kisik)	C++14	50 / 90	2082 ms	119800 KiB

kisik

#include <iostream>
#include <sstream>
#include <cstdio>
#include <cstdlib>
#include <cmath>
#include <cctype>
#include <cstring>
#include <climits>
#include <iomanip>
#include <bitset>
#include <algorithm>
#include <vector>
#include <stack>
#include <queue>
#include <deque>
#include <set>
#include <list>
#include <map>

using namespace std;

const int N = 1000005;

int n, k;
map < int, vector <int> > mat;
multiset <int> ms;

int main() {
  cin >> n >> k;
  for (int i = 0; i < n; i++) {
    int w, h;
    cin >> w >> h;
    mat[h].push_back(w);
  }
  long long ans = 2e18, sum = 0;
  for (int i = 1; i < N; i++) {
    for (auto it : mat[i]) {
      ms.insert(it);
      sum += it;
    }
    while (ms.size() > k) {
      sum -= *ms.rbegin();
      ms.erase(--ms.end());
    }
    if (ms.size() == k) {
      ans = min(ans, sum * i);
    }
  }
  cout << ans << endl;
  return 0;
}

Compilation message (stderr)

kisik.cpp: In function 'int main()':
kisik.cpp:41:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     while (ms.size() > k) {
            ~~~~~~~~~~^~~
kisik.cpp:45:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     if (ms.size() == k) {
         ~~~~~~~~~~^~~~

• Subtask 1: 10 / 10
• Subtask 2: 10 / 10
• Subtask 3: 10 / 10
• Subtask 4: 10 / 10
• Subtask 5: 0 / 10
• Subtask 6: 10 / 10
• Subtask 7: 0 / 10
• Subtask 8: 0 / 10
• Subtask 9: 0 / 10