Submission #1251904

#	Time	Username	Problem	Language	Result	Execution time	Memory
1251904		kolpo0210	Finding Routers (IOI20_routers)	C++20	0 / 100	1 ms	328 KiB

routers

#include "routers.h"
#include <vector>
using namespace std;

std::vector<int> find_routers(int l, int n, int q) {
    vector<int> pos(n);
    pos[0] = 0;

    for (int i = 1; i < n; ++i) {
        int lo = pos[i - 1] + 2;
        int hi = l;
        int res = l;

        while (lo <= hi) {
            int mid = ((lo + hi) / 2) / 2 * 2;
            int label = use_detector(mid);

            if (label >= i) {
                res = mid;
                hi = mid - 2;
            } else {
                lo = mid + 2;
            }
        }
        pos[i] = 2 * res - pos[i - 1];
    }

    return pos;
}

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