제출 #405360

#제출 시각아이디문제언어결과실행 시간메모리
405360Andyvanh1쌀 창고 (IOI11_ricehub)C++14
100 / 100
27 ms2500 KiB
#include <iostream> #include <iostream> #include <vector> #include <algorithm> #include <set> using namespace std; #define vt vector #define pb push_back #define all(x) x.begin(),x.end() typedef vt<int> vi; typedef long long ll; typedef pair<int,int> pii; ll prefsum[100005]; int besthub(int r, int l, int x[], ll b){ prefsum[0] = 0; for(int i = 1; i <= r; i++){ prefsum[i] = prefsum[i-1]+x[i-1]; } int ans = 1; for(int i = 0; i < r; i++){ int L = i; int R = r; while(L!=R) { int j = (L+R)>>1; int mid = (i + j) >> 1; ll n = (ll) x[mid] * (2 * mid - j - i + 1) - (prefsum[mid + 1] - prefsum[i]) + (prefsum[j + 1] - prefsum[mid + 1]); if (n <= b) { L = j+1; }else{ R = j; } } ans = max(ans,R-i); } return ans; }
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