제출 #1124158

#제출 시각아이디문제언어결과실행 시간메모리
1124158njoop쌀 창고 (IOI11_ricehub)C++17
17 / 100
0 ms328 KiB
#include <bits/stdc++.h> #define ll long long using namespace std; int n; vector<ll> arr, pre; ll cost(int k) { ll mnco = 1e18; for(int i=1; i<=n-k+1; i++) { ll left = (arr[i+(k/2)]*(k/2+1))-(pre[i+(k/2)]-pre[i-1]); ll right = (pre[i+k-1]-pre[i+(k/2)])-(arr[i+(k/2)]*(k-(k/2)-1)); mnco = min(mnco, left+right); } return mnco; } int besthub(int R, int L, int X[], long long B) { n=R; arr.assign(R+10, 0); pre.assign(R+10, 0); for(int i=1; i<=R; i++) { arr[i] = X[i-1]; pre[i] = pre[i-1] + arr[i]; } int l=1, r=R; while(l < r) { int mid = (l+r)/2; if(cost(mid) > B) { r = mid; } else { l = mid+1; } } return l-1; }
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