Submission #1234118

#	Time	Username	Problem	Language	Result	Execution time	Memory
1234118		madamadam3	Stations (IOI20_stations)	C++20	0 / 100	0 ms	444 KiB

stations

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

using namespace std;

#ifdef LOCAL
	#define dbg(x) (cout << (x))
#else
	#define dbg(x)
#endif

typedef long long ll;
using vi =vector<int>;
using vvi = vector<vi>;
using vl = vector<ll>;
#define pb push_back
#define FOR(i, a, b) for (int i = a; i < b; i++)
#define trace(x) for (auto &el : x) {dbg(el); dbg(" ");}

int n, k;
vi U, V, labels;
vvi adj;

void dfs(int u, int p, int label) {
	labels[u] = label;

	for (auto &v : adj[u]) {
		if (v == p) continue;
		dfs(v, u, label+1);
	}
}

vi label(int N, int K, vi x, vi y) {
	n = N; k = K;
	U = x; V = y;

	vi deg(n); for (int i = 0; i < n - 1; i++) deg[U[i]]++, deg[V[i]]++;
	int root = 0; while (deg[root] != 1) root++;

	labels.resize(n);
	dfs(root, root, 0);
	return labels;
}

int find_next_station(int s, int t, vi c) {
	return t < s ? c[0] : c[1];
}

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