제출 #1203497

#제출 시각아이디문제언어결과실행 시간메모리
1203497mayacFinding Routers (IOI20_routers)C++20
69.65 / 100
1 ms328 KiB
#include "routers.h"
#include <iostream>
#include <vector>
using namespace std;

std::vector<int> find_routers(int l, int n, int q) {
	int idx = l, a, cur;
	vector<int> ans(n, 0);
	for (int i = n - 1; i > 0; i--) {
		cur = 0;
		for (int step = 2 + idx / 2; step > 0; step /= 2) {
			cur += step;
			while (cur > l)cur--;
			a = use_detector(cur);
			if (a >= i)cur -= step;
			if (step > 1)step++;
		}
		idx = cur;
		ans[i] = cur;
	}
	for (int i = 1; i < n; i++) {
		ans[i] = ans[i] * 2 - ans[i - 1];
	}
	return ans;
}
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