Submission #882966

#	Time	Username	Problem	Language	Result	Execution time	Memory
882966		tsumondai	Travelling Trader (CCO23_day2problem2)	C++14	0 / 25	7 ms	25192 KiB

Main

#include <bits/stdc++.h>
using namespace std;

#define fi first
#define se second
#define pb push_back
#define mp make_pair
#define foru(i, l, r) for(int i = l; i <= r; i++)
#define ford(i, r, l) for(int i = r; i >= l; i--)
#define __TIME  (1.0 * clock() / CLOCKS_PER_SEC)

typedef pair<int, int> ii;
typedef pair<ii, int> iii;
typedef pair<ii, ii> iiii;

const int N = 1e6 + 5;

const int oo = 1e9, mod = 1e9 + 7;

int n, m, k, a[N];
vector<int> edges[N];

vector<int> res;
void dfs(int u, int par) {
	res.push_back(u);
	for (int v : edges[u]) {
		if (v == par) continue;
		for (int w : edges[v]) {
			if (w == u) continue;
			dfs(w, v);
		}
		res.push_back(v);
	}
}
void process() {
	int total = 0;
	for (int i = 1; i <= n; i++) total += a[i];
	dfs(1, 0);
	cout << total << '\n';
	cout << n << '\n';
	for (int v : res) cout << v << (v == res.back() ? '\n' : ' ');
}

signed main() {
	cin.tie(0)->sync_with_stdio(false);
	//freopen(".inp", "r", stdin);
	//freopen(".out", "w", stdout);
	cin >> n >> k;
	foru(i, 1, n - 1) {
		int u, v; cin >> u >> v;
		edges[u].pb(v);
		edges[v].pb(u);
	}
	foru(i, 1, n) cin >> a[i];
	process();
	cerr << "Time elapsed: " << __TIME << " s.\n";
	return 0;
}

// dont stop

• Subtask 1: 0 / 2
• Subtask 2: 0 / 7
• Subtask 3: 0 / 3
• Subtask 4: 0 / 4
• Subtask 5: 0 / 4
• Subtask 6: 0 / 5