Submission #433293

#	Time	Username	Problem	Language	Result	Execution time	Memory
433293		Tiago_Marques	Finding Routers (IOI20_routers)	C++17	39 / 100	1 ms	332 KiB

routers

#include "routers.h"
#include <bits/stdc++.h>

using namespace std;

#define pb push_back

std::vector<int> find_routers(int l, int n, int q)
{
    int minimo = 1, maximo = l, x, y;
    while (minimo < maximo - 1)
    {
        int med = (minimo + maximo)/2;
        y = (med + 1)/2;
        while (2*y <= minimo)
            y ++;
        while (2*y-1 >= maximo)
        y --;
        x = use_detector(y);
        if (x == 0)
            minimo = 2*y;
        else
            maximo = 2*y - 1;
    }
    vector<int> ans;
    ans.pb (0);
    if (minimo%2 == 0)
        ans.pb (minimo);
    else
        ans.pb (maximo);
    return ans;
}

• Subtask 1: 16 / 16
• Subtask 2: 0 / 21
• Subtask 3: 23 / 23
• Subtask 4: 0 / 40