Submission #110171

#	Time	Username	Problem	Language	Result	Execution time	Memory
110171		WLZ	Semiexpress (JOI17_semiexpress)	C++17	100 / 100	92 ms	33472 KiB

semiexpress

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

int main() {
  ios::sync_with_stdio(false);
  cin.tie(0);
  long long n;
  int m, k;
  cin >> n >> m >> k;
  long long a, b, c;
  cin >> a >> b >> c;
  long long t;
  cin >> t;
  vector<long long> s(m);
  for (int i = 0; i < m; i++) {
    cin >> s[i];
  }
  long long ans = 0;
  if ((n - 1) * b <= t) {
    ans++;
  }
  priority_queue<long long> pq;
  for (int i = 0; i < m - 1; i++) {
    long long need = (s[i] - 1) * b;
    if (need > t) {
      break;
    } 
    long long q = (t - need) / a;
    long long to = min(s[i] + q, s[i + 1] - 1);
    ans += to - s[i] + 1;
    for (int j = 0; j < k && to < s[i + 1] - 1; j++) {
      long long tmp = need + (to - s[i] + 1) * c;
      if (tmp > t) {
        break;
      }
      q = (t - tmp) / a;
      long long next = min(s[i + 1] - 1, to + q + 1);
      pq.push(next - to);
      to = next;
    }
  }
  for (int i = 0; i < k - m && !pq.empty(); i++) {
    ans += pq.top();
    pq.pop();
  }
  ans--;
  cout << ans << '\n';
  return 0;
}

• Subtask 1: 18 / 18
• Subtask 2: 30 / 30
• Subtask 3: 52 / 52