Submission #237066

#	Time	Username	Problem	Language	Result	Execution time	Memory
237066		nicolaalexandra	Rice Hub (IOI11_ricehub)	C++14	0 / 100	28 ms	2560 KiB

ricehub

#include <bits/stdc++.h>
#include "ricehub.h"
#define DIM 200010
using namespace std;

long long sp[DIM];

long long get_sum (int x, int y){
    if (x > y)
        return 0;

    long long val = sp[y];
    if (x > 0)
        val -= sp[x-1];
    return val;

}
int besthub (int n, int l, int v[], long long b){
    int i, maxi = 0;
    for (i=0;i<n;i++)
        sp[i] = sp[i-1] + v[i];

    for (i=0;i<n;i++){
        int st = 0, dr = i-1, sol = i;
        while (st <= dr){
            int mid = (st+dr)>>1;
            if (1LL*(i-mid)*v[i] - get_sum(mid,i-1) <= b){
                sol = mid;
                dr = mid-1;
            } else st = mid+1;
        }

        long long val = b - ( 1LL*(i-sol)*v[i] - get_sum(sol,i-1) );
        int nr = i-sol+1;

        /// vad cat pot sa ma mai duc in dreapta
        st = i+1, dr = n-1, sol = i;
        while (st <= dr){
            int mid = (st+dr)>>1;
            if (get_sum(i+1,mid) - v[i]*(mid-i) <= val){
                sol = mid;
                st = mid+1;
            } else dr = mid-1;
        }

        nr += sol - i;

        maxi = max (maxi,nr);

    }

    return maxi;
}

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