제출 #880178

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
880178		AlphaMale06	Rice Hub (IOI11_ricehub)	C++14	0 / 100	2 ms	600 KiB

ricehub

#include<bits/stdc++.h>
#include "ricehub.h"

using namespace std;
using ll = long long;


int besthub(int n, int L, int a[], long long c)
{
    ll sum=0;
    ll pref[n+1];
    ll suf[n+1];
    suf[n]=0;
    pref[0]=0;
    for(int i=0; i< n; i++){
        sum+=a[i];
        pref[i+1]=sum;
    }
    for(int i=n-1; i>=0; i--){
        suf[i]=pref[n]-pref[i];
    }
    ll sufind=n;
    ll mx;
    ll s=n/2;
    ll cost=a[s]*s-pref[s]-a[s]*(n-s)+suf[s];
    while(cost>c){
        sufind--;
        s=sufind/2;
        cost=a[s]*(s+1)-pref[s+1]-a[s]*(n-s-1)+suf[s]-suf[sufind+1];
    }
    mx=sufind+1;
    for(int i=1; i< n; i++){
        cost=0;
        while(cost<=c && sufind<n){
            s=(sufind+i)/2;
            cost=a[s]*(s-i+1)-pref[s+1]+pref[i]-a[s]*(sufind-s)+suf[s+1]-suf[sufind+1];
            sufind++;
        }
        if(sufind==n && cost<=c){
            mx=max(mx, sufind-i);
            break;
        }
        else{
            sufind--;
            mx=max(mx, sufind-i);
        }
    }
    return mx;
}

• Subtask 1: 0 / 17
• Subtask 2: 0 / 25
• Subtask 3: 0 / 26
• Subtask 4: 0 / 32