Submission #824060

#	Time	Username	Problem	Language	Result	Execution time	Memory
824060		Abrar_Al_Samit	Stations (IOI20_stations)	C++17	0 / 100	693 ms	660 KiB

stations

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

using namespace std;

const int nax = 1000;

vector<int>g[nax];
vector<int> labels;
int _tm;

void dfs(int v, int p = -1) {
	labels[v] = _tm++;
	for(int u : g[v]) if(u!=p) {
		dfs(u, v);
	}
	labels[v] |= (_tm-1)<<10;
}
vector<int> label(int n, int k, vector<int> u, vector<int> v) {
	labels.resize(n);
	for(int i=0; i<n; ++i) g[i].clear();

	for(int i=0; i<n-1; ++i) {
		g[u[i]].push_back(v[i]);
		g[v[i]].push_back(u[i]);
	}
	_tm = 1;
	dfs(0);
	return labels;
}

int find_next_station(int s, int t, vector<int> c) {
	int m = c.size();
	vector<pair<int,int>>rng(m);
	for(int i=0; i<m; ++i) {
		rng[i].first = (((1<<10)-1)&c[i]);
		rng[i].second = (c[i] - rng[i].first) >> 10;
	}
	sort(rng.begin(), rng.end());

	for(int i=1; i<m; ++i) {
		if(t >= rng[i].first && t <= rng[i].second) {
			return rng[i].first + (rng[i].second << 10);
		}
	}

	return rng[0].first + (rng[0].second << 10);
}

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