Submission #976531

#	Time	Username	Problem	Language	Result	Execution time	Memory
976531		blackslex	Rice Hub (IOI11_ricehub)	C++17	68 / 100	1071 ms	4700 KiB

ricehub

#include "ricehub.h"
#include<bits/stdc++.h>

using namespace std;
using ll = long long;

int besthub (int R, int L, int X[], long long B) {
  vector<int> x(R + 5);
  vector<ll> pref(R + 5);
  for (int i = 1; i <= R; i++) x[i] = X[i - 1], pref[i] = pref[i - 1] + x[i];
  for (int sz = R; sz >= 1; sz--) {
    for (int l = 1, r = l + sz - 1; r <= R; l++, r++) {
      int mid = (l + r) >> 1;
      ll curl = x[mid] * (mid - l) - (pref[mid - 1] - pref[l - 1]);
      ll curr = (pref[r] - pref[mid]) - x[mid] * (r - mid);
      if (curl + curr <= B) return (int) sz;
    }
  }
  return 0;
  // return R;
}

• Subtask 1: 17 / 17
• Subtask 2: 25 / 25
• Subtask 3: 26 / 26
• Subtask 4: 0 / 32