제출 #388077

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
388077		Pichon5	Rice Hub (IOI11_ricehub)	C++17	100 / 100	22 ms	2524 KiB

ricehub

#include "ricehub.h"
#include <bits/stdc++.h>
#define vi vector<int>
#define pb push_back
#define ll long long int
using namespace std;
int besthub(int R, int L, int X[], long long B)
{
    int res=0;
    ll pref[R];
    pref[0]=X[0];
    for(int i=1;i<R;i++){
        pref[i]=pref[i-1]+X[i];
    }
    for(ll i=0;i<R;i++){
        ll b=i,e=R-1;
        while(b<=e){
            ll mid=(b+e)/2;
            ll MID=(i+mid)/2;
            ll aux=pref[mid];
            aux-=pref[MID];
            aux-=(mid-MID)*X[MID];
            if(MID!=i){
                aux+=(MID-i)*X[MID];
                aux-=pref[MID-1];
                if(i)aux+=pref[i-1];
            }
            if(aux<=B){
                res=max(res,int(mid-i+1));
                b=mid+1;
            }else{
                e=mid-1;
            }
        }
    }
    return res;
}

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