Submission #1205398

#	Time	Username	Problem	Language	Result	Execution time	Memory
1205398		bangan	기지국 (IOI20_stations)	C++20	0 / 100	3074 ms	440 KiB

stations

#include "stations.h"
#include <vector>
#include <bits/stdc++.h>

std::vector<int> label(int n, int k, std::vector<int> u, std::vector<int> v) {
	std::vector<int> id(n);
	iota(id.begin(), id.end(), 0);
	return id;
}

int find_next_station(int s, int t, std::vector<int> c) {
	s++;
	t++;
	for (int& v : c) {
		v++;
	}

	if (t < s) {
		return (s >> 1) - 1;
	} else {
		std::vector<int> cnd;
		for (int v : c) {
			if (v > s) {
				cnd.push_back(v);
			}
		}

		if (cnd.size() == 1) {
			return cnd[0] - 1;
		} else {
			int x = cnd[0];
			int y = cnd[1];
		
			while (true) {
				if (t == x) {
					return x - 1;
				}
				if (t == y) {
					return y - 1;
				}
				t >>= 1;
			}
		}
	}
}

• Subtask 1: 0 / 5
• Subtask 2: 0 / 8
• Subtask 3: 0 / 16
• Subtask 4: 0 / 10
• Subtask 5: 0 / 61