oj.uz

Submission #1092109

# Submission time Handle Problem Language Result Execution time Memory
1092109 2024-09-23T08:09:20 Z juicy Schools (IZhO13_school) C++17
80 / 100
 74 ms 8284 KB 
#include <bits/stdc++.h>

using namespace std;

#ifdef LOCAL
#include "debug.h"
#else
#define debug(...) 42
#endif

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

  int n, m, s; cin >> n >> m >> s;
  vector<array<int, 2>> a(n);
  for (int i = 0; i < n; ++i) {
    cin >> a[i][0] >> a[i][1];
  }
  sort(a.begin(), a.end(), [&](const auto &u, const auto &v) {
    return u[0] - u[1] > v[0] - v[1];
  });
  vector<int> p(n);
  priority_queue<int> pq;
  long long sum = 0;
  for (int i = 0; i < n; ++i) {
    sum += a[i][0];
    pq.push(-a[i][0]);
    while (pq.size() > m) {
      sum += pq.top();
      pq.pop();
    }
    p[i] = sum;
  }
  sum = 0;
  priority_queue<int>().swap(pq);
  long long res = 0;
  for (int i = n; ~i; --i) {
    if (i < n) {
      sum += a[i][1];
      pq.push(-a[i][1]);
      while (pq.size() > s) {
        sum += pq.top();
        pq.pop();
      }
    }
    if (pq.size() == s && i >= m) {
      res = max(res, sum + (i ? p[i - 1] : 0));
    }
  }
  cout << res;
  return 0;
}

Compilation message

school.cpp: In function 'int main()':
school.cpp:28:22: warning: comparison of integer expressions of different signedness: 'std::priority_queue<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   28 |     while (pq.size() > m) {
      |            ~~~~~~~~~~^~~
school.cpp:41:24: warning: comparison of integer expressions of different signedness: 'std::priority_queue<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   41 |       while (pq.size() > s) {
      |              ~~~~~~~~~~^~~
school.cpp:46:19: warning: comparison of integer expressions of different signedness: 'std::priority_queue<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   46 |     if (pq.size() == s && i >= m) {
      |         ~~~~~~~~~~^~~~

Subtask #1
80.0 / 100.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 456 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 452 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 1 ms 600 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 1 ms 604 KB Output is correct
11 Correct 2 ms 348 KB Output is correct
12 Correct 2 ms 468 KB Output is correct
13 Correct 8 ms 1372 KB Output is correct
14 Correct 19 ms 2216 KB Output is correct
15 Correct 34 ms 3960 KB Output is correct
16 Correct 47 ms 5752 KB Output is correct
17 Incorrect 55 ms 6280 KB Output isn't correct
18 Incorrect 60 ms 6760 KB Output isn't correct
19 Incorrect 65 ms 7216 KB Output isn't correct
20 Incorrect 74 ms 8284 KB Output isn't correct