Submission #1093639

#	Time	Username	Problem	Language	Result	Execution time	Memory
1093639		Aviansh	Rice Hub (IOI11_ricehub)	C++17	100 / 100	11 ms	1884 KiB

ricehub

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

using namespace std;

bool check(int x[], int n, int siz, long long b){
    int med = n/2;
    long long f = 0;
    long long s = 0;
    for(int i = 0;i<=med;i++){
        f+=x[med]-x[i];
    }
    for(int i = med+1;i<n;i++){
        s+=x[i]-x[med];
    }
    if(f+s<=b)
        return 1;
    for(int i = 1;i<=siz-n;i++){
        f+=1LL*(x[med+i]-x[med+i-1])*(med+1);
        f-=(x[med+i]-x[i-1]);
        s-=1LL*(x[med+i]-x[med+i-1])*(n-med-1);
        s+=(x[n+i-1]-x[med+i]);
        if(f+s<=b){
            return 1;
        }
    }
    return 0;
}

int besthub(int n, int l, int x[], long long b)
{
    int lo = 0;
    int hi = n;
    while(lo<hi){
        int mid = (lo+hi+1)/2;
        if(check(x,mid,n,b)){
            lo=mid;
        }
        else{
            hi=mid-1;
        }
    }
    return lo;
}

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