제출 #60704

#제출 시각아이디문제언어결과실행 시간메모리
60704theknife2001쌀 창고 (IOI11_ricehub)C++17
17 / 100
40 ms3408 KiB
#include "ricehub.h" #include <bits/stdc++.h> using namespace std; const int N=1e5+55; long long sum[N]; int pos[N]; int n; bool ok(int x, long long b) { long long best,cur; best=1e9+55; for(int i=0;i<=n-x;i++) { cur=pos[x/2+i]*(x/2)-sum[i+x/2-1]; if(i) cur+=sum[i-1]; cur+=sum[i+x-1]-sum[i+(x-1)/2]-pos[x/2+i]*(x/2); best=min(best,cur); } if(best>b) return 0; return 1; } int besthub(int N, int L, int X[], long long B) { n=N; for(int i=0;i<n;i++) { pos[i]=X[i]; sum[i]=X[i]; if(i) sum[i]+=sum[i-1]; } int l=2; int r=n; int mid; while(l<r) { mid=(l+r)/2; if(ok(mid,B)) l=mid+1; else r=mid; } return l-1; }
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