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답안 #113991

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
113991 2019-05-29T12:55:18 Z RockyB Unique Cities (JOI19_ho_t5) C++17
4 / 100
 2000 ms 21288 KB 
/// In The Name Of God

#include <bits/stdc++.h>

#define f first
#define s second

#define pb push_back
#define pp pop_back
#define mp make_pair

#define sz(x) (int)x.size()
#define sqr(x) ((x) * 1ll * (x))
#define all(x) x.begin(), x.end()

#define rep(i, l, r) for (int i = (l); i <= (r); i++)
#define per(i, l, r) for (int i = (l); i >= (r); i--)

#define Kazakhstan ios_base :: sync_with_stdio(0), cin.tie(0), cout.tie(0);

#define nl '\n'
#define ioi exit(0);

typedef long long ll;
typedef long double ld;
typedef unsigned long long ull;

const int N = (int)5e5 + 7;
const int inf = (int)1e9 + 7;
const int mod = (int)1e9 + 7;
const ll linf = (ll)1e18 + 7;

const int dx[] = {-1, 0, 1, 0, 1, -1, -1, 1};
const int dy[] = {0, 1, 0, -1, 1, -1, 1, -1};

using namespace std;

int n, m;
int c[N];
vector <int> g[N];

int A, B;
int mx;
void dfs(int v, int p, int dis, int &D) {
	if (dis > mx) {
		mx = dis;
		D = v;
	}
	for (auto to : g[v]) {
		if (to != p) {
			dfs(to, v, dis + 1, D);
		}
	}
}

int dp[N];
set <int> col;
void pre(int v, int p = -1) {
	dp[v] = 0;
	for (auto to : g[v]) {
		if (to != p) {
			pre(to, v);
			dp[v] = max(dp[v], dp[to] + 1);
		}
	}
}
void go(int v, int p = -1, int ost = 0) {
	if (ost < 0) col.insert(c[v]);
	pair <int, int> mx = {-1, -1};
	for (auto to : g[v]) {
		if (to != p) {
			if (dp[to] >= mx.f) {
				mx.s = mx.f;
				mx.f = dp[to];
			}
			else if (dp[to] > mx.s) {
				mx.s = dp[to];
			}
		}
	}
	if (mx.f == mx.s) return;
	for (auto to : g[v]) {
		if (to != p) {
			if (dp[to] == mx.f) go(to, v, max(ost - 1, mx.s));
		}
	}
}
void solve(int v) {
	pre(v);
	col.clear();
	go(v);
	cout << sz(col) << nl;
}
int main() {
	#ifdef IOI2018
		freopen ("in.txt", "r", stdin);
	#endif
	Kazakhstan
	// --- reading input
	cin >> n >> m;
	rep(i, 2, n) {
		int v, u;
		cin >> v >> u;
		g[v].pb(u);
		g[u].pb(v);
	}
	rep(i, 1, n) cin >> c[i];
	// --- finding diameter
	dfs(1, 0, 0, A);
	mx = 0;
	dfs(A, 0, 0, B);
	// --- solving part
	rep(i, 1, n) {
		solve(i);
	}
	ioi
}

Subtask #1
4.0 / 4.0

# 결과 실행 시간 메모리 Grader output
1 Correct 12 ms 12160 KB Output is correct
2 Correct 75 ms 12280 KB Output is correct
3 Correct 84 ms 12288 KB Output is correct
4 Correct 94 ms 12288 KB Output is correct
5 Correct 87 ms 12408 KB Output is correct
6 Correct 196 ms 12424 KB Output is correct
7 Correct 89 ms 12288 KB Output is correct
8 Correct 79 ms 12280 KB Output is correct
9 Correct 104 ms 12160 KB Output is correct
10 Correct 109 ms 12152 KB Output is correct
11 Correct 102 ms 12160 KB Output is correct
12 Correct 47 ms 12252 KB Output is correct
13 Correct 200 ms 12512 KB Output is correct
14 Correct 113 ms 12412 KB Output is correct
15 Correct 94 ms 12280 KB Output is correct
16 Correct 41 ms 12416 KB Output is correct
17 Correct 118 ms 12288 KB Output is correct
18 Correct 82 ms 12288 KB Output is correct
19 Correct 106 ms 12160 KB Output is correct
20 Correct 427 ms 12416 KB Output is correct
21 Correct 123 ms 12288 KB Output is correct
22 Correct 83 ms 12160 KB Output is correct
23 Correct 109 ms 12320 KB Output is correct
24 Correct 100 ms 12280 KB Output is correct
25 Correct 111 ms 12288 KB Output is correct
26 Correct 47 ms 12412 KB Output is correct
27 Correct 327 ms 12532 KB Output is correct
28 Correct 203 ms 12480 KB Output is correct
29 Correct 94 ms 12408 KB Output is correct
30 Correct 39 ms 12284 KB Output is correct
31 Correct 167 ms 12408 KB Output is correct
32 Correct 97 ms 12408 KB Output is correct

Subtask #2
0 / 32.0

# 결과 실행 시간 메모리 Grader output
1 Execution timed out 2048 ms 18424 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #3
0 / 32.0

# 결과 실행 시간 메모리 Grader output
1 Execution timed out 2027 ms 21288 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #4
0 / 32.0

# 결과 실행 시간 메모리 Grader output
1 Correct 12 ms 12160 KB Output is correct
2 Correct 75 ms 12280 KB Output is correct
3 Correct 84 ms 12288 KB Output is correct
4 Correct 94 ms 12288 KB Output is correct
5 Correct 87 ms 12408 KB Output is correct
6 Correct 196 ms 12424 KB Output is correct
7 Correct 89 ms 12288 KB Output is correct
8 Correct 79 ms 12280 KB Output is correct
9 Correct 104 ms 12160 KB Output is correct
10 Correct 109 ms 12152 KB Output is correct
11 Correct 102 ms 12160 KB Output is correct
12 Correct 47 ms 12252 KB Output is correct
13 Correct 200 ms 12512 KB Output is correct
14 Correct 113 ms 12412 KB Output is correct
15 Correct 94 ms 12280 KB Output is correct
16 Correct 41 ms 12416 KB Output is correct
17 Correct 118 ms 12288 KB Output is correct
18 Correct 82 ms 12288 KB Output is correct
19 Correct 106 ms 12160 KB Output is correct
20 Correct 427 ms 12416 KB Output is correct
21 Correct 123 ms 12288 KB Output is correct
22 Correct 83 ms 12160 KB Output is correct
23 Correct 109 ms 12320 KB Output is correct
24 Correct 100 ms 12280 KB Output is correct
25 Correct 111 ms 12288 KB Output is correct
26 Correct 47 ms 12412 KB Output is correct
27 Correct 327 ms 12532 KB Output is correct
28 Correct 203 ms 12480 KB Output is correct
29 Correct 94 ms 12408 KB Output is correct
30 Correct 39 ms 12284 KB Output is correct
31 Correct 167 ms 12408 KB Output is correct
32 Correct 97 ms 12408 KB Output is correct
33 Execution timed out 2048 ms 18424 KB Time limit exceeded
34 Halted 0 ms 0 KB -