Submission #3571265


Source Code Expand

// Ala be zekrellah tatmaenolgholoob ...
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef pair<int,int> pii;
#define F first
#define S second
#define MP make_pair
const int maxn = 1e5+9;
const ll mod = 1e9+7;

vector <int> g[maxn], vec, tmp, ans;
int deg[maxn];
bool vis[maxn];

int dfs (int v, int parent = -1) {
	int mx = 0;
	for (auto u : g[v]) {
		if (u == parent) continue;
		mx = max(mx, dfs(u, v) + 1);
	}
	return mx;
}

ll cal () {
	while (vec.size()) {
		tmp.clear();
		int mx = 0;
		for (auto v : vec) {
			mx = max(mx, deg[v]);
			for (auto u : g[v]) {
				if (vis[u]) continue;
				vis[u] = true;
				deg[u]--;
				tmp.push_back(u);
			}
		}
		vec = tmp;
		if (mx) ans.push_back(mx);
	}
	ll res = 1;
	for (auto x : ans)
		res *= x;
	return res;
}

void setdeg (int n) {
	for (int i = 0; i < n; i++) deg[i] = g[i].size();
}

int main () {
	ios::sync_with_stdio(false); cin.tie(0); cout.tie(0);
	int n;
	cin >> n;
	for (int i = 0; i < n - 1; i++) {
		int v, u;
		cin >> v >> u;
		--v; --u;
		g[v].push_back(u); g[u].push_back(v);
	}
	int mn = 1e9;
	for (int i = 0; i < n; i++) {
		int d = dfs(i);
		if (d < mn) {
			vec.clear();
			mn = d;
		}
		if (d == mn)
			vec.push_back(i);
	}
	ll res = 0;
	if (vec.size() == 2) {
		setdeg(n);
		ans.push_back(2);
		vis[vec[0]] = true; vis[vec[1]] = true;
		deg[vec[0]]--; deg[vec[1]]--;
		res = cal();
		cout << mn << " " << res << "\n";
	}
	else {
		int v = vec[0];
		setdeg(n);
		vis[v] = true;
		res = cal();
		for (auto u : g[v]) {
			setdeg(n);
			memset(vis, 0, sizeof vis);
			vec.clear(); ans.clear();
			vec.push_back(v); vec.push_back(u);
			ans.push_back(2);
			vis[v] = vis[u] = true;
			deg[v]--; deg[u]--;
			res = min(res, cal());
		}
		cout << mn + 1 << " " << res << "\n";
	}
}

Submission Info

Submission Time
Task D - Isomorphism Freak
User MB81
Language C++14 (GCC 5.4.1)
Score 1100
Code Size 1871 Byte
Status AC
Exec Time 3 ms
Memory 2688 KB

Judge Result

Set Name Sample All
Score / Max Score 0 / 0 1100 / 1100
Status
AC × 4
AC × 103
Set Name Test Cases
Sample s1.txt, s2.txt, s3.txt, s4.txt
All 01.txt, 02.txt, 03.txt, 04.txt, 05.txt, 06.txt, 07.txt, 08.txt, 09.txt, 10.txt, 11.txt, 12.txt, 13.txt, 14.txt, 15.txt, 16.txt, 17.txt, 18.txt, 19.txt, 20.txt, 21.txt, 22.txt, 23.txt, 24.txt, 25.txt, 26.txt, 27.txt, 28.txt, 29.txt, 30.txt, 31.txt, 32.txt, 33.txt, 34.txt, 35.txt, 36.txt, 37.txt, 38.txt, 39.txt, 40.txt, 41.txt, 42.txt, 43.txt, 44.txt, 45.txt, 46.txt, 47.txt, 48.txt, 49.txt, 50.txt, 51.txt, 52.txt, 53.txt, 54.txt, 55.txt, 56.txt, 57.txt, 58.txt, 59.txt, 60.txt, 61.txt, 62.txt, 63.txt, 64.txt, 65.txt, 66.txt, 67.txt, 68.txt, 69.txt, 70.txt, 71.txt, 72.txt, 73.txt, 74.txt, 75.txt, 76.txt, 77.txt, 78.txt, 79.txt, 80.txt, 81.txt, 82.txt, 83.txt, 84.txt, 85.txt, 86.txt, 87.txt, 88.txt, 89.txt, 90.txt, 91.txt, 92.txt, 93.txt, 94.txt, 95.txt, 96.txt, 97.txt, 98.txt, 99.txt, s1.txt, s2.txt, s3.txt, s4.txt
Case Name Status Exec Time Memory
01.txt AC 2 ms 2560 KB
02.txt AC 2 ms 2688 KB
03.txt AC 2 ms 2688 KB
04.txt AC 2 ms 2688 KB
05.txt AC 2 ms 2688 KB
06.txt AC 2 ms 2688 KB
07.txt AC 2 ms 2688 KB
08.txt AC 2 ms 2560 KB
09.txt AC 2 ms 2688 KB
10.txt AC 2 ms 2688 KB
11.txt AC 2 ms 2560 KB
12.txt AC 2 ms 2560 KB
13.txt AC 2 ms 2560 KB
14.txt AC 2 ms 2560 KB
15.txt AC 2 ms 2560 KB
16.txt AC 2 ms 2560 KB
17.txt AC 2 ms 2560 KB
18.txt AC 2 ms 2560 KB
19.txt AC 2 ms 2560 KB
20.txt AC 2 ms 2560 KB
21.txt AC 2 ms 2560 KB
22.txt AC 2 ms 2560 KB
23.txt AC 2 ms 2560 KB
24.txt AC 2 ms 2560 KB
25.txt AC 2 ms 2560 KB
26.txt AC 2 ms 2560 KB
27.txt AC 2 ms 2688 KB
28.txt AC 2 ms 2688 KB
29.txt AC 3 ms 2688 KB
30.txt AC 2 ms 2688 KB
31.txt AC 2 ms 2688 KB
32.txt AC 2 ms 2688 KB
33.txt AC 2 ms 2688 KB
34.txt AC 2 ms 2688 KB
35.txt AC 2 ms 2688 KB
36.txt AC 2 ms 2688 KB
37.txt AC 3 ms 2688 KB
38.txt AC 3 ms 2688 KB
39.txt AC 2 ms 2560 KB
40.txt AC 2 ms 2560 KB
41.txt AC 2 ms 2560 KB
42.txt AC 2 ms 2560 KB
43.txt AC 2 ms 2560 KB
44.txt AC 2 ms 2560 KB
45.txt AC 2 ms 2560 KB
46.txt AC 2 ms 2560 KB
47.txt AC 3 ms 2688 KB
48.txt AC 3 ms 2688 KB
49.txt AC 2 ms 2688 KB
50.txt AC 3 ms 2688 KB
51.txt AC 2 ms 2688 KB
52.txt AC 2 ms 2688 KB
53.txt AC 2 ms 2688 KB
54.txt AC 2 ms 2688 KB
55.txt AC 2 ms 2688 KB
56.txt AC 2 ms 2688 KB
57.txt AC 2 ms 2688 KB
58.txt AC 2 ms 2688 KB
59.txt AC 2 ms 2688 KB
60.txt AC 3 ms 2688 KB
61.txt AC 2 ms 2688 KB
62.txt AC 2 ms 2688 KB
63.txt AC 2 ms 2688 KB
64.txt AC 2 ms 2688 KB
65.txt AC 2 ms 2688 KB
66.txt AC 2 ms 2688 KB
67.txt AC 2 ms 2688 KB
68.txt AC 2 ms 2688 KB
69.txt AC 2 ms 2688 KB
70.txt AC 3 ms 2688 KB
71.txt AC 2 ms 2688 KB
72.txt AC 2 ms 2688 KB
73.txt AC 2 ms 2688 KB
74.txt AC 2 ms 2688 KB
75.txt AC 2 ms 2688 KB
76.txt AC 2 ms 2688 KB
77.txt AC 2 ms 2688 KB
78.txt AC 2 ms 2688 KB
79.txt AC 2 ms 2688 KB
80.txt AC 2 ms 2688 KB
81.txt AC 2 ms 2688 KB
82.txt AC 2 ms 2688 KB
83.txt AC 2 ms 2688 KB
84.txt AC 2 ms 2688 KB
85.txt AC 2 ms 2688 KB
86.txt AC 2 ms 2688 KB
87.txt AC 2 ms 2688 KB
88.txt AC 2 ms 2688 KB
89.txt AC 3 ms 2688 KB
90.txt AC 3 ms 2688 KB
91.txt AC 2 ms 2688 KB
92.txt AC 2 ms 2688 KB
93.txt AC 2 ms 2560 KB
94.txt AC 2 ms 2688 KB
95.txt AC 2 ms 2688 KB
96.txt AC 2 ms 2560 KB
97.txt AC 2 ms 2688 KB
98.txt AC 2 ms 2688 KB
99.txt AC 2 ms 2688 KB
s1.txt AC 2 ms 2560 KB
s2.txt AC 2 ms 2688 KB
s3.txt AC 2 ms 2688 KB
s4.txt AC 2 ms 2688 KB