Submission #145023

#	Time	Username	Problem	Language	Result	Execution time	Memory
145023		mhy908	Rice Hub (IOI11_ricehub)	C++14	100 / 100	42 ms	2936 KiB

ricehub

#include <bits/stdc++.h>
#include "ricehub.h"
using namespace std;
typedef long long LL;
LL sum[100010];
int arr[100010];
int ans=1;
int besthub(int n, int m, int x[], LL b)
{
    int l=1, r;
    LL p=0;
    for(int i=0; i<n; i++)arr[i+1]=x[i];
    for(int i=1; i<=n; i++)sum[i]=sum[i-1]+(LL)arr[i];
    for(r=1; r<=n; r++){
        while(l<=r){
            int mid=(l+r)/2;
            LL temp=(LL)(mid-l+1)*(LL)arr[mid]-(LL)(sum[mid]-sum[l-1])+(LL)(sum[r]-sum[mid-1])-(LL)(r-mid+1)*(LL)arr[mid];
            if(temp<=b){
                ans=max(ans, r-l+1);
                break;
            }
            l++;
        }
    }
    return ans;
}

Compilation message (stderr)

ricehub.cpp: In function 'int besthub(int, int, int*, LL)':
ricehub.cpp:11:8: warning: unused variable 'p' [-Wunused-variable]
     LL p=0;
        ^

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