Submission #503129

#	Time	Username	Problem	Language	Result	Execution time	Memory
503129		jk410	Rice Hub (IOI11_ricehub)	C++17	68 / 100	15 ms	2880 KiB

ricehub

#include "ricehub.h"
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
int R,L;
int X[100001];
ll Sum_X[100001];
ll B;
int Ans;
ll f(int l,int r){
    int m=(l+r)>>1;
    return X[m]*(m-l)-(Sum_X[m-1]-Sum_X[l-1])+(Sum_X[r]-Sum_X[m])-X[m]*(r-m);
}
int besthub(int r,int l,int x[],ll b){
    R=r;
    L=l;
    for (int i=1; i<=R; i++){
        X[i]=x[i-1];
        Sum_X[i]=Sum_X[i-1]+X[i];
    }
    B=b;
    for (int i=1,j=1; i<=R; i++){
        while (j<R){
            if (f(i,j+1)>B)
                break;
            j++;
        }
        Ans=max(Ans,j-i+1);
    }
    return Ans;
}

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