Submission #677579

#	Time	Username	Problem	Language	Result	Execution time	Memory
677579		ThegeekKnight16	Rice Hub (IOI11_ricehub)	C++17	100 / 100	11 ms	3160 KiB

ricehub

#include <bits/stdc++.h>
#include "ricehub.h"
using namespace std;
const int MAXN = 1e5 + 10;
long long X[MAXN], SX[MAXN];

bool Teste(int R, int L, long long B, int tam)
{
    for (int l = 1, r = tam; r <= R; l++, r++)
    {
        int m = (l + r) / 2;

        long long sum = ((m - l  + 1) * X[m]) - (SX[m] - SX[l-1]);
        sum += (SX[r] - SX[m]) - ((r - m) * X[m]);

        if (sum <= B) return true;
    }

    return false;
}

int besthub(int R, int L, int _X[], long long B)
{
    for (int i = 1; i <= R; i++) X[i] = (long long)(_X[i-1]);
    for (int i = 1; i <= R; i++) SX[i] = X[i] + SX[i-1];

    int ini = 0; int fim = R;
    while (ini < fim)
    {
        int m = (ini + fim) / 2;
        if (ini == fim-1) m = fim;
        if (Teste(R, L, B, m)) ini = m;
        else fim = m-1;
    }

    return ini;
}

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