제출 #687631

#제출 시각아이디문제언어결과실행 시간메모리
687631beedle쌀 창고 (IOI11_ricehub)C++17
100 / 100
15 ms2508 KiB
#include "ricehub.h" #include <iostream> int besthub(int R, int L, int X[], long long B) { long long cs[R]; cs[0]=X[0]; for(int i=1;i<R;i++) cs[i]=cs[i-1]+X[i]; long long lo=1; long long hi=R; long long best=1; while(lo<=hi) { long long mid=(lo+hi)/2; bool possible=false; for(int i=0;i<R;i++) if(i+mid-1<R) { long long pivot=i+mid/2; long long value=-(cs[pivot-1]-(i==0?0:cs[i-1]))+cs[i+mid-1]-cs[pivot]-X[pivot]*(i+mid-1-pivot)+X[pivot]*(pivot-1-(i-1)); if(value<=B) possible=true; } if(possible) best=mid, lo=1+mid; else hi=mid-1; } return best; } // signed main() // { // int X[]={1,2,10,12,14}; // std::cout<<besthub(5,20,X,6); // }
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