제출 #61276

#제출 시각아이디문제언어결과실행 시간메모리
61276TuGSGeReL쌀 창고 (IOI11_ricehub)C++14
0 / 100
7 ms852 KiB
#include "ricehub.h" #include<bits/stdc++.h> #define ll long long #define mp make_pair #define pub push_back #define pob pop_back using namespace std; ll i,n,ans,a[111111],b,c[111111]; bool can(ll k, ll kk){ ll md=(k+kk)/2,cst; cst=(2*md-k-kk)*a[md]-c[md]+c[k]+c[kk+1]-c[md+1]; if(cst<=b) return 1; else return 0; } ll fnd(ll k){ ll x=k,y=n; while(x+1!=y){ ll mid=(x+y)/2; if(can(k,mid))x=mid; else y=mid; } return y; } int besthub(int R, int L, int X[], long long B) { n=R; b=B; for(i=0;i<n;i++) a[i]=X[i]; c[0]=a[0]; for(i=1;i<n;i++)c[i]=c[i-1]+a[i]; for(i=0;i<R;i++) ans=max(ans,fnd(i)-i); return ans; }
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