제출 #77788

#제출 시각아이디문제언어결과실행 시간메모리
77788muradeynRice Hub (IOI11_ricehub)C++14
17 / 100
20 ms3500 KiB
#include "ricehub.h" #include <bits/stdc++.h> #define SIZE 100001 using namespace std; int besthub(int r, int l, int x[], long long b) { long long pre[r + 1]; pre[0] = 0; for (int i = 1;i<=r;i++)pre[i] = pre[i - 1] + x[i - 1]; int ret = 0; int le = 0,ri = r - 1; while (le <= ri) { bool f = false; int mid = (le + ri) >> 1; for (int i = 0;i<r;i++) { if (i + mid > r)continue; long long cost = 0; int st = i , en = i + mid - 1 , med = (st + en) / 2; cost += (med - st) * x[med]; cost -= pre[med] - pre[st]; cost += pre[en + 1] - pre[med + 1]; cost -= (en - med) * x[med]; if (cost <= b) { ret = max(ret,mid); f = true; } } if (f) le = mid + 1; else ri = mid - 1; } return ret; }
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