Submission #65309

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
65309	2018-08-07 11:17:13	zubec	Rice Hub (IOI11_ricehub)	C++14	100 / 100	31 ms	16936 KiB

ricehub

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#include <bits/stdc++.h>
using namespace std;
long long a[100100], pref[100100], n, L;
bool f(int x){
    for (int i = x; i <= n; i++){
        int l = i-x+1;
        int r = i;
        int mid = (l+r)>>1;
        long long sum = (pref[r]-pref[mid])-a[mid]*1ll*(r-mid);
        sum += a[mid]*1ll*(mid-l)-(pref[mid-1]-pref[l-1]);
        if (sum <= L)
            return 1;
    }
    return 0;
}
int besthub(int n, int L, int X[], long long B){
    ::n = n;
    for (int i = 0; i < n; i++)
        a[i+1] = X[i];
    for (int i = 1; i <= n; i++){
        pref[i] = pref[i-1] + a[i];
    }
    ::L = B;
    int l = 1, r = n;
    while(l < r){
 
 
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• Subtask 1: 17 / 17
• Subtask 2: 25 / 25
• Subtask 3: 26 / 26
• Subtask 4: 32 / 32