Submission #421842

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
421842	2021-06-09 12:55:18	arayi	Rice Hub (IOI11_ricehub)	C++17	100 / 100	220 ms	2524 KiB

ricehub

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#include "ricehub.h"
#include <bits/stdc++.h>
#define lli long long
using namespace std;
const int N = 1e6 + 30;
int n;
lli pr[N];
lli s(int l, int r)
{
    lli ret = pr[r];
    if(l) ret -= pr[l-1];
    return ret;
}
int besthub(int N, int L, int X[], long long B)
{
    n = N;
    for (int i = 0; i < n; i++)
    {
        pr[i] = X[i];
        if(i) pr[i] += pr[i - 1];
    }
    int ret = 0;
    for (int i = 0; i < n; i++)
    {
        int l = 0, r = i, ans = 0;
        while(l <= r)
        {
            int mid = (l + r) / 2;
            lli sm = (lli)mid * 1LL * X[i] - s(i - mid, i - 1);
 
 
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• Subtask 1: 17 / 17
• Subtask 2: 25 / 25
• Subtask 3: 26 / 26
• Subtask 4: 32 / 32