제출 #735076

#제출 시각아이디문제언어결과실행 시간메모리
735076tigar쌀 창고 (IOI11_ricehub)C++14
0 / 100
12 ms1484 KiB
#include <bits/stdc++.h>
#include "ricehub.h"

using namespace std;
typedef long long ll;
ll prefs[100010];

ll cost(int l, int r, int *x)
{
    int m=(l+r)/2;
    return prefs[r]-prefs[m]-(r-m)*x[m]+prefs[m]-prefs[l]-(m-l)*x[l];
}

int besthub(int R, int L, int *X, ll B)
{
    prefs[0]=X[0];
    for(int i=1; i<R; i++)prefs[i]=prefs[i-1]+X[i];
    ll k=0, ans=0;
    for(int i=0; i<R; i++)
    {
        while(cost(k, i, X)>B and k<i)k++;
        ans=max(i-k+1, ans);
    }
    return ans;
}

/*int main()
{
    int r, l, x[100010];
    ll b;
    cin>>r>>l;
    for(int i=0; i<r; i++)cin>>x[i];
    cin>>b;
    cout<<besthub(r, l, x, b);
    return 0;
}*/
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