Submission #1005708

#	Time	Username	Problem	Language	Result	Execution time	Memory
1005708		vjudge1	Rice Hub (IOI11_ricehub)	C++17	100 / 100	9 ms	2652 KiB

ricehub

#include "ricehub.h"
#include <bits/stdc++.h>
using namespace std;
#define endl '\n'
#define ll long long
const ll sz=50005;
ll a[sz], b[sz], d[sz], p[sz];
int besthub(int num, int le, int x[], long long k)
{

    for(int i=0; i<num; i++){
        p[i+1]=p[i]+x[i];
    }
    ll l=1, r=1, ans=0;
    while(r<=num){
        ll mid=(l+r)/2, num;
        if((l+r)%2){
            ll num1=x[mid-1]*(mid-l)-p[mid-1]+p[l-1]+p[r]-p[mid]-x[mid-1]*(r-mid);
            mid++;
            ll num2=x[mid-1]*(mid-l)-p[mid-1]+p[l-1]+p[r]-p[mid]-x[mid-1]*(r-mid);
            num=min(num1, num2);
        }
        else num=x[mid-1]*(mid-l)-p[mid-1]+p[l-1]+p[r]-p[mid]-x[mid-1]*(r-mid);
        //cout<<l<<' '<<r<<' '<<num<<' '<<p[r-1]-p[mid-1]<<endl;
        if(num<=k){
            ans=max(ans, r-l+1);
            r++;
        }
        else{
            l++;
        }
    }
    return ans;
}
/*
{} []
5 20 6
1
2
10
12
14
3

1 3 13 25 39

12*2-10+39-13-12*1=12+16
*/

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