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답안 #114287

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
114287 2019-05-31T17:23:16 Z RockyB Unique Cities (JOI19_ho_t5) C++17
100 / 100
 819 ms 52476 KB 
/// In The Name Of God

//#pragma GCC optimize("Ofast")
//#pragma GCC target("sse,sse2,sse3,ssse3,sse4")
//#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,avx2,tune=native")
//#pragma GCC optimize("unroll-loops")

#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)2e5 + 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 a[N];

vector <int> g[N];

struct S {
	int sz, df;
	int st[N], cnt[N];

	void add(int c) {
		df += cnt[c]++ == 0;
	}
	void del(int c) {
		df -= --cnt[c] == 0;
	}
	void push(int v) {
		st[++sz] = v;
		add(a[v]);
	}
	void pop() {
		del(a[st[sz--]]);
	}
	bool empty() {
		return sz == 0;
	}
	int back() {
		return st[sz];
	}
} T;

void dfs(int v, int p, vector <int> &dis) {
	dis[v] = dis[p] + 1;
	for (auto to : g[v]) {
		if (to != p) dfs(to, v, dis);
	}
}
int d[N], ans[N];
void prec(int v, int p) {
	d[v] = 1;
	for (auto to : g[v]) {
		if (to != p) {
			prec(to, v);
			d[v] = max(d[v], d[to] + 1);
		}
	}
}
void solve(int v, int p, vector <int> &dep) {
	vector < pair <int, int > > ch;
	for (auto to : g[v]) {
		if (to != p) {
			ch.pb({d[to], to});
		}
	}
	if (sz(ch)) swap(ch[0], *max_element(all(ch)));
	int len = (sz(ch) > 1) ? max_element(ch.begin() + 1, ch.end()) -> f : 0;
	if (sz(ch)) {
		for (auto to : ch) {
			while (!T.empty() && dep[T.back()] >= dep[v] - len) T.pop();
			T.push(v);
			solve(to.s, v, dep);
			if (!T.empty() && T.back() == v) T.pop();
			len = max(len, to.f);
		}
	}
	while (!T.empty() && dep[T.back()] >= dep[v] - len) T.pop();
	// if (v == 1) {
	// 	cerr << T.back() << ' ' << dep[T.back()] << ' ' << dep[v] << nl;
	// 	cerr << len << " -> " << sz(ch) << " -> " << T.sz << " -> ";
	// 	rep(i, 1, T.sz) cerr << T.st[i] << ' ';
	// 	cerr << nl;
	// }
	ans[v] = max(ans[v], T.df);
}
int main() {
	#ifdef IOI
		freopen ("in.txt", "r", stdin);
		freopen ("res.txt", "w", stdout);
	#endif
	Kazakhstan
	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 >> a[i];
	}
	vector <int> d1(n + 1);
	dfs(1, 0, d1);
	
	int A = max_element(all(d1)) - d1.begin();
	prec(A, 0);
	dfs(A, 0, d1);
	solve(A, 0, d1);

	int B = max_element(all(d1)) - d1.begin();
	prec(B, 0);
	dfs(B, 0, d1);
	solve(B, 0, d1);

	rep(i, 1, n) {
		cout << ans[i] << nl;
	}
	ioi
}

Subtask #1
4.0 / 4.0

# 결과 실행 시간 메모리 Grader output
1 Correct 6 ms 4992 KB Output is correct
2 Correct 7 ms 5120 KB Output is correct
3 Correct 7 ms 5248 KB Output is correct
4 Correct 7 ms 5376 KB Output is correct
5 Correct 7 ms 5120 KB Output is correct
6 Correct 8 ms 5504 KB Output is correct
7 Correct 8 ms 5376 KB Output is correct
8 Correct 8 ms 5248 KB Output is correct
9 Correct 7 ms 5248 KB Output is correct
10 Correct 7 ms 5248 KB Output is correct
11 Correct 8 ms 5248 KB Output is correct
12 Correct 6 ms 5248 KB Output is correct
13 Correct 9 ms 5504 KB Output is correct
14 Correct 8 ms 5248 KB Output is correct
15 Correct 8 ms 5248 KB Output is correct
16 Correct 7 ms 5248 KB Output is correct
17 Correct 9 ms 5376 KB Output is correct
18 Correct 10 ms 5376 KB Output is correct
19 Correct 8 ms 5248 KB Output is correct
20 Correct 8 ms 5504 KB Output is correct
21 Correct 11 ms 5376 KB Output is correct
22 Correct 11 ms 5120 KB Output is correct
23 Correct 9 ms 5248 KB Output is correct
24 Correct 7 ms 5248 KB Output is correct
25 Correct 7 ms 5248 KB Output is correct
26 Correct 7 ms 5248 KB Output is correct
27 Correct 7 ms 5504 KB Output is correct
28 Correct 7 ms 5376 KB Output is correct
29 Correct 7 ms 5376 KB Output is correct
30 Correct 7 ms 5248 KB Output is correct
31 Correct 8 ms 5504 KB Output is correct
32 Correct 7 ms 5376 KB Output is correct

Subtask #2
32.0 / 32.0

# 결과 실행 시간 메모리 Grader output
1 Correct 237 ms 12424 KB Output is correct
2 Correct 341 ms 30704 KB Output is correct
3 Correct 43 ms 9080 KB Output is correct
4 Correct 515 ms 17884 KB Output is correct
5 Correct 688 ms 50160 KB Output is correct
6 Correct 644 ms 33736 KB Output is correct
7 Correct 485 ms 18380 KB Output is correct
8 Correct 525 ms 21220 KB Output is correct
9 Correct 523 ms 20020 KB Output is correct
10 Correct 505 ms 19964 KB Output is correct
11 Correct 204 ms 21792 KB Output is correct
12 Correct 712 ms 37880 KB Output is correct
13 Correct 595 ms 33452 KB Output is correct
14 Correct 614 ms 32668 KB Output is correct
15 Correct 191 ms 21792 KB Output is correct
16 Correct 633 ms 39768 KB Output is correct
17 Correct 642 ms 33876 KB Output is correct

Subtask #3
32.0 / 32.0

# 결과 실행 시간 메모리 Grader output
1 Correct 471 ms 16588 KB Output is correct
2 Correct 790 ms 50456 KB Output is correct
3 Correct 58 ms 9848 KB Output is correct
4 Correct 580 ms 19576 KB Output is correct
5 Correct 711 ms 52476 KB Output is correct
6 Correct 690 ms 35560 KB Output is correct
7 Correct 517 ms 19764 KB Output is correct
8 Correct 580 ms 26488 KB Output is correct
9 Correct 565 ms 24224 KB Output is correct
10 Correct 617 ms 22084 KB Output is correct
11 Correct 412 ms 21496 KB Output is correct
12 Correct 699 ms 45688 KB Output is correct
13 Correct 581 ms 32968 KB Output is correct
14 Correct 711 ms 33436 KB Output is correct
15 Correct 201 ms 22848 KB Output is correct
16 Correct 573 ms 41376 KB Output is correct
17 Correct 605 ms 35660 KB Output is correct

Subtask #4
32.0 / 32.0

# 결과 실행 시간 메모리 Grader output
1 Correct 6 ms 4992 KB Output is correct
2 Correct 7 ms 5120 KB Output is correct
3 Correct 7 ms 5248 KB Output is correct
4 Correct 7 ms 5376 KB Output is correct
5 Correct 7 ms 5120 KB Output is correct
6 Correct 8 ms 5504 KB Output is correct
7 Correct 8 ms 5376 KB Output is correct
8 Correct 8 ms 5248 KB Output is correct
9 Correct 7 ms 5248 KB Output is correct
10 Correct 7 ms 5248 KB Output is correct
11 Correct 8 ms 5248 KB Output is correct
12 Correct 6 ms 5248 KB Output is correct
13 Correct 9 ms 5504 KB Output is correct
14 Correct 8 ms 5248 KB Output is correct
15 Correct 8 ms 5248 KB Output is correct
16 Correct 7 ms 5248 KB Output is correct
17 Correct 9 ms 5376 KB Output is correct
18 Correct 10 ms 5376 KB Output is correct
19 Correct 8 ms 5248 KB Output is correct
20 Correct 8 ms 5504 KB Output is correct
21 Correct 11 ms 5376 KB Output is correct
22 Correct 11 ms 5120 KB Output is correct
23 Correct 9 ms 5248 KB Output is correct
24 Correct 7 ms 5248 KB Output is correct
25 Correct 7 ms 5248 KB Output is correct
26 Correct 7 ms 5248 KB Output is correct
27 Correct 7 ms 5504 KB Output is correct
28 Correct 7 ms 5376 KB Output is correct
29 Correct 7 ms 5376 KB Output is correct
30 Correct 7 ms 5248 KB Output is correct
31 Correct 8 ms 5504 KB Output is correct
32 Correct 7 ms 5376 KB Output is correct
33 Correct 237 ms 12424 KB Output is correct
34 Correct 341 ms 30704 KB Output is correct
35 Correct 43 ms 9080 KB Output is correct
36 Correct 515 ms 17884 KB Output is correct
37 Correct 688 ms 50160 KB Output is correct
38 Correct 644 ms 33736 KB Output is correct
39 Correct 485 ms 18380 KB Output is correct
40 Correct 525 ms 21220 KB Output is correct
41 Correct 523 ms 20020 KB Output is correct
42 Correct 505 ms 19964 KB Output is correct
43 Correct 204 ms 21792 KB Output is correct
44 Correct 712 ms 37880 KB Output is correct
45 Correct 595 ms 33452 KB Output is correct
46 Correct 614 ms 32668 KB Output is correct
47 Correct 191 ms 21792 KB Output is correct
48 Correct 633 ms 39768 KB Output is correct
49 Correct 642 ms 33876 KB Output is correct
50 Correct 471 ms 16588 KB Output is correct
51 Correct 790 ms 50456 KB Output is correct
52 Correct 58 ms 9848 KB Output is correct
53 Correct 580 ms 19576 KB Output is correct
54 Correct 711 ms 52476 KB Output is correct
55 Correct 690 ms 35560 KB Output is correct
56 Correct 517 ms 19764 KB Output is correct
57 Correct 580 ms 26488 KB Output is correct
58 Correct 565 ms 24224 KB Output is correct
59 Correct 617 ms 22084 KB Output is correct
60 Correct 412 ms 21496 KB Output is correct
61 Correct 699 ms 45688 KB Output is correct
62 Correct 581 ms 32968 KB Output is correct
63 Correct 711 ms 33436 KB Output is correct
64 Correct 201 ms 22848 KB Output is correct
65 Correct 573 ms 41376 KB Output is correct
66 Correct 605 ms 35660 KB Output is correct
67 Correct 32 ms 7032 KB Output is correct
68 Correct 228 ms 25208 KB Output is correct
69 Correct 392 ms 23400 KB Output is correct
70 Correct 553 ms 18168 KB Output is correct
71 Correct 781 ms 49912 KB Output is correct
72 Correct 686 ms 33784 KB Output is correct
73 Correct 566 ms 18120 KB Output is correct
74 Correct 646 ms 24284 KB Output is correct
75 Correct 561 ms 20900 KB Output is correct
76 Correct 519 ms 20292 KB Output is correct
77 Correct 364 ms 19796 KB Output is correct
78 Correct 635 ms 41336 KB Output is correct
79 Correct 556 ms 37260 KB Output is correct
80 Correct 630 ms 30688 KB Output is correct
81 Correct 233 ms 21544 KB Output is correct
82 Correct 599 ms 39532 KB Output is correct
83 Correct 565 ms 33776 KB Output is correct
84 Correct 586 ms 18284 KB Output is correct
85 Correct 819 ms 50680 KB Output is correct
86 Correct 719 ms 34296 KB Output is correct
87 Correct 541 ms 18432 KB Output is correct
88 Correct 624 ms 25080 KB Output is correct
89 Correct 591 ms 21868 KB Output is correct
90 Correct 612 ms 20840 KB Output is correct
91 Correct 413 ms 20200 KB Output is correct
92 Correct 695 ms 49752 KB Output is correct
93 Correct 595 ms 29156 KB Output is correct
94 Correct 638 ms 26088 KB Output is correct
95 Correct 242 ms 21956 KB Output is correct
96 Correct 632 ms 39916 KB Output is correct
97 Correct 620 ms 34160 KB Output is correct
98 Correct 528 ms 19576 KB Output is correct
99 Correct 719 ms 51192 KB Output is correct
100 Correct 695 ms 35376 KB Output is correct
101 Correct 450 ms 19260 KB Output is correct
102 Correct 595 ms 24056 KB Output is correct
103 Correct 658 ms 21860 KB Output is correct
104 Correct 600 ms 21392 KB Output is correct
105 Correct 349 ms 20624 KB Output is correct
106 Correct 791 ms 37212 KB Output is correct
107 Correct 588 ms 37360 KB Output is correct
108 Correct 626 ms 28864 KB Output is correct
109 Correct 216 ms 22588 KB Output is correct
110 Correct 622 ms 40636 KB Output is correct
111 Correct 713 ms 35024 KB Output is correct