oj.uz

답안 #359111

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
359111 2021-01-26T11:07:10 Z AmShZ Mergers (JOI19_mergers) C++11
100 / 100
 1363 ms 71660 KB 
//khodaya khodet komak kon
# pragma GCC target ("avx2")
# pragma GCC optimization ("Ofast")
# pragma GCC optimization ("unroll-loops")
# include <bits/stdc++.h>
 
/*
// ordered_set 
# include <ext/pb_ds/assoc_container.hpp>
# include <ext/pb_ds/tree_policy.hpp>
using namespace __gnu_pbds;
# define ordered_set tree<int, null_type,less<int>, rb_tree_tag,tree_order_statistics_node_update> 
*/
 
using namespace std;
 
typedef long long                                        ll;
typedef long double                                      ld;
typedef pair <int, int>                                  pii;
typedef pair <pii, int>                                  ppi;
typedef pair <int, pii>                                  pip;
typedef pair <pii, pii>                                  ppp;
typedef pair <ll, ll>                                    pll;
 
# define A                                               first
# define B                                               second
# define endl                                            '\n'
# define sep                                             ' '
# define all(x)                                          x.begin(), x.end()
# define kill(x)                                         return cout << x << endl, 0
# define SZ(x)                                           int(x.size())
# define lc                                              id << 1
# define rc                                              id << 1 | 1
# define InTheNameOfGod                                  ios::sync_with_stdio(0);cin.tie(0); cout.tie(0);
 
ll power(ll a, ll b, ll md) {return (!b ? 1 : (b & 1 ? a * power(a * a % md, b / 2, md) % md : power(a * a % md, b / 2, md) % md));}
 
const int xn = 5e5 + 10;
const int xm = - 20 + 10;
const int sq = 320;
const int inf = 1e9 + 10;
const ll INF = 1e18 + 10;
const int mod = 1e9 + 7;
const int base = 257;

int n, k, a[xn], ans, sz[xn], arshad[xn];
int cnt[xn], c[xn], sum, ted;
vector <int> adj[xn];
bool mark[xn];

void preDFS(int v, int p = - 1){
	sz[v] = 1;
	for (int u : adj[v]){
		if (u == p)
			continue;
		preDFS(u, v);
		sz[v] += sz[u];
		if (sz[u] > sz[arshad[v]])
			arshad[v] = u;
	}
}
void upd(int v, int f, int p){
	if (c[a[v]] == cnt[a[v]])
		sum -= cnt[a[v]];
	c[a[v]] += f;
	if (c[a[v]] == cnt[a[v]])
		sum += cnt[a[v]];
	for (int u : adj[v])
		if (u != p)
			upd(u, f, v);
}
void DFS(int v, int p = - 1){
	for (int u : adj[v])
		if (u != p && u != arshad[v])
			DFS(u, v), upd(u, - 1, v);
	if (arshad[v])
		DFS(arshad[v], v);
	for (int u : adj[v])
		if (u != p && u != arshad[v])
			upd(u, 1, v);
	++ c[a[v]];
	if (c[a[v]] == cnt[a[v]])
		sum += c[a[v]];
	if (sum == sz[v] && v != 1)
		mark[v] = true, ++ ted;
}
void DFS2(int v, int p = - 1){
	sz[v] = mark[v];
	for (int u : adj[v])
		if (u != p)
			DFS2(u, v), sz[v] += sz[u];
	ans += (mark[v] && (sz[v] == 1 || sz[v] == ted));
}

int main(){
	InTheNameOfGod;
	
	cin >> n >> k;
	for (int i = 0; i < n - 1; ++ i){
		int v, u;
		cin >> v >> u;
		adj[v].push_back(u);
		adj[u].push_back(v);
	}
	for (int i = 1; i <= n; ++ i)
		cin >> a[i], ++ cnt[a[i]];
	preDFS(1), DFS(1), DFS2(1);
	cout << (ans + 1) / 2 << endl;
	
	return 0;
}

Compilation message

mergers.cpp:3: warning: ignoring #pragma GCC optimization [-Wunknown-pragmas]
    3 | # pragma GCC optimization ("Ofast")
      | 
mergers.cpp:4: warning: ignoring #pragma GCC optimization [-Wunknown-pragmas]
    4 | # pragma GCC optimization ("unroll-loops")
      |

Subtask #1
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 9 ms 12140 KB Output is correct
2 Correct 11 ms 12140 KB Output is correct
3 Correct 9 ms 12140 KB Output is correct
4 Correct 9 ms 12140 KB Output is correct
5 Correct 9 ms 12140 KB Output is correct
6 Correct 9 ms 12140 KB Output is correct
7 Correct 9 ms 12140 KB Output is correct
8 Correct 9 ms 12268 KB Output is correct
9 Correct 9 ms 12140 KB Output is correct
10 Correct 9 ms 12140 KB Output is correct
11 Correct 10 ms 12140 KB Output is correct
12 Correct 10 ms 12140 KB Output is correct
13 Correct 9 ms 12140 KB Output is correct
14 Correct 9 ms 12140 KB Output is correct
15 Correct 9 ms 12140 KB Output is correct
16 Correct 9 ms 12140 KB Output is correct
17 Correct 9 ms 12140 KB Output is correct
18 Correct 9 ms 12140 KB Output is correct
19 Correct 9 ms 12140 KB Output is correct
20 Correct 9 ms 12140 KB Output is correct
21 Correct 9 ms 12140 KB Output is correct
22 Correct 9 ms 12140 KB Output is correct
23 Correct 9 ms 12140 KB Output is correct
24 Correct 10 ms 12140 KB Output is correct

Subtask #2
24.0 / 24.0

# 결과 실행 시간 메모리 Grader output
1 Correct 9 ms 12140 KB Output is correct
2 Correct 11 ms 12140 KB Output is correct
3 Correct 9 ms 12140 KB Output is correct
4 Correct 9 ms 12140 KB Output is correct
5 Correct 9 ms 12140 KB Output is correct
6 Correct 9 ms 12140 KB Output is correct
7 Correct 9 ms 12140 KB Output is correct
8 Correct 9 ms 12268 KB Output is correct
9 Correct 9 ms 12140 KB Output is correct
10 Correct 9 ms 12140 KB Output is correct
11 Correct 10 ms 12140 KB Output is correct
12 Correct 10 ms 12140 KB Output is correct
13 Correct 9 ms 12140 KB Output is correct
14 Correct 9 ms 12140 KB Output is correct
15 Correct 9 ms 12140 KB Output is correct
16 Correct 9 ms 12140 KB Output is correct
17 Correct 9 ms 12140 KB Output is correct
18 Correct 9 ms 12140 KB Output is correct
19 Correct 9 ms 12140 KB Output is correct
20 Correct 9 ms 12140 KB Output is correct
21 Correct 9 ms 12140 KB Output is correct
22 Correct 9 ms 12140 KB Output is correct
23 Correct 9 ms 12140 KB Output is correct
24 Correct 10 ms 12140 KB Output is correct
25 Correct 9 ms 12140 KB Output is correct
26 Correct 11 ms 12268 KB Output is correct
27 Correct 11 ms 12416 KB Output is correct
28 Correct 11 ms 12416 KB Output is correct
29 Correct 11 ms 12268 KB Output is correct
30 Correct 11 ms 12268 KB Output is correct
31 Correct 10 ms 12140 KB Output is correct
32 Correct 11 ms 12524 KB Output is correct
33 Correct 9 ms 12140 KB Output is correct
34 Correct 10 ms 12268 KB Output is correct
35 Correct 13 ms 12268 KB Output is correct
36 Correct 11 ms 12396 KB Output is correct
37 Correct 11 ms 12268 KB Output is correct
38 Correct 10 ms 12140 KB Output is correct
39 Correct 11 ms 12268 KB Output is correct
40 Correct 11 ms 12268 KB Output is correct
41 Correct 11 ms 12396 KB Output is correct
42 Correct 10 ms 12268 KB Output is correct
43 Correct 10 ms 12524 KB Output is correct
44 Correct 9 ms 12140 KB Output is correct
45 Correct 11 ms 12396 KB Output is correct
46 Correct 11 ms 12396 KB Output is correct
47 Correct 9 ms 12140 KB Output is correct
48 Correct 11 ms 12268 KB Output is correct
49 Correct 10 ms 12268 KB Output is correct
50 Correct 11 ms 12396 KB Output is correct
51 Correct 11 ms 12268 KB Output is correct
52 Correct 12 ms 12268 KB Output is correct
53 Correct 10 ms 12268 KB Output is correct
54 Correct 11 ms 12268 KB Output is correct

Subtask #3
14.0 / 14.0

# 결과 실행 시간 메모리 Grader output
1 Correct 9 ms 12140 KB Output is correct
2 Correct 11 ms 12140 KB Output is correct
3 Correct 9 ms 12140 KB Output is correct
4 Correct 9 ms 12140 KB Output is correct
5 Correct 9 ms 12140 KB Output is correct
6 Correct 9 ms 12140 KB Output is correct
7 Correct 9 ms 12140 KB Output is correct
8 Correct 9 ms 12268 KB Output is correct
9 Correct 9 ms 12140 KB Output is correct
10 Correct 9 ms 12140 KB Output is correct
11 Correct 10 ms 12140 KB Output is correct
12 Correct 10 ms 12140 KB Output is correct
13 Correct 9 ms 12140 KB Output is correct
14 Correct 9 ms 12140 KB Output is correct
15 Correct 9 ms 12140 KB Output is correct
16 Correct 9 ms 12140 KB Output is correct
17 Correct 9 ms 12140 KB Output is correct
18 Correct 9 ms 12140 KB Output is correct
19 Correct 9 ms 12140 KB Output is correct
20 Correct 9 ms 12140 KB Output is correct
21 Correct 9 ms 12140 KB Output is correct
22 Correct 9 ms 12140 KB Output is correct
23 Correct 9 ms 12140 KB Output is correct
24 Correct 10 ms 12140 KB Output is correct
25 Correct 9 ms 12140 KB Output is correct
26 Correct 65 ms 17892 KB Output is correct
27 Correct 159 ms 18304 KB Output is correct
28 Correct 11 ms 12268 KB Output is correct
29 Correct 9 ms 12140 KB Output is correct
30 Correct 9 ms 12140 KB Output is correct
31 Correct 146 ms 18284 KB Output is correct
32 Correct 12 ms 12268 KB Output is correct
33 Correct 131 ms 25196 KB Output is correct
34 Correct 127 ms 18028 KB Output is correct
35 Correct 11 ms 12268 KB Output is correct
36 Correct 171 ms 18796 KB Output is correct
37 Correct 11 ms 12268 KB Output is correct
38 Correct 11 ms 12268 KB Output is correct
39 Correct 70 ms 17892 KB Output is correct
40 Correct 11 ms 12524 KB Output is correct
41 Correct 127 ms 17900 KB Output is correct
42 Correct 134 ms 20332 KB Output is correct
43 Correct 9 ms 12140 KB Output is correct
44 Correct 134 ms 25324 KB Output is correct
45 Correct 134 ms 21740 KB Output is correct
46 Correct 10 ms 12396 KB Output is correct
47 Correct 11 ms 12268 KB Output is correct

Subtask #4
22.0 / 22.0

# 결과 실행 시간 메모리 Grader output
1 Correct 65 ms 17892 KB Output is correct
2 Correct 71 ms 19044 KB Output is correct
3 Correct 11 ms 12268 KB Output is correct
4 Correct 11 ms 12268 KB Output is correct
5 Correct 10 ms 12140 KB Output is correct
6 Correct 10 ms 12140 KB Output is correct
7 Correct 10 ms 12268 KB Output is correct
8 Correct 138 ms 18924 KB Output is correct
9 Correct 11 ms 12268 KB Output is correct
10 Correct 145 ms 18156 KB Output is correct
11 Correct 9 ms 12140 KB Output is correct
12 Correct 162 ms 18156 KB Output is correct
13 Correct 163 ms 18756 KB Output is correct
14 Correct 143 ms 19180 KB Output is correct
15 Correct 61 ms 17892 KB Output is correct
16 Correct 10 ms 12268 KB Output is correct
17 Correct 9 ms 12140 KB Output is correct
18 Correct 74 ms 19044 KB Output is correct
19 Correct 154 ms 23020 KB Output is correct
20 Correct 12 ms 12268 KB Output is correct
21 Correct 9 ms 12140 KB Output is correct
22 Correct 66 ms 18532 KB Output is correct
23 Correct 12 ms 12268 KB Output is correct
24 Correct 170 ms 18376 KB Output is correct
25 Correct 137 ms 21740 KB Output is correct
26 Correct 10 ms 12268 KB Output is correct
27 Correct 11 ms 12396 KB Output is correct
28 Correct 11 ms 12268 KB Output is correct
29 Correct 13 ms 12268 KB Output is correct
30 Correct 10 ms 12268 KB Output is correct

Subtask #5
30.0 / 30.0

# 결과 실행 시간 메모리 Grader output
1 Correct 9 ms 12140 KB Output is correct
2 Correct 11 ms 12140 KB Output is correct
3 Correct 9 ms 12140 KB Output is correct
4 Correct 9 ms 12140 KB Output is correct
5 Correct 9 ms 12140 KB Output is correct
6 Correct 9 ms 12140 KB Output is correct
7 Correct 9 ms 12140 KB Output is correct
8 Correct 9 ms 12268 KB Output is correct
9 Correct 9 ms 12140 KB Output is correct
10 Correct 9 ms 12140 KB Output is correct
11 Correct 10 ms 12140 KB Output is correct
12 Correct 10 ms 12140 KB Output is correct
13 Correct 9 ms 12140 KB Output is correct
14 Correct 9 ms 12140 KB Output is correct
15 Correct 9 ms 12140 KB Output is correct
16 Correct 9 ms 12140 KB Output is correct
17 Correct 9 ms 12140 KB Output is correct
18 Correct 9 ms 12140 KB Output is correct
19 Correct 9 ms 12140 KB Output is correct
20 Correct 9 ms 12140 KB Output is correct
21 Correct 9 ms 12140 KB Output is correct
22 Correct 9 ms 12140 KB Output is correct
23 Correct 9 ms 12140 KB Output is correct
24 Correct 10 ms 12140 KB Output is correct
25 Correct 9 ms 12140 KB Output is correct
26 Correct 11 ms 12268 KB Output is correct
27 Correct 11 ms 12416 KB Output is correct
28 Correct 11 ms 12416 KB Output is correct
29 Correct 11 ms 12268 KB Output is correct
30 Correct 11 ms 12268 KB Output is correct
31 Correct 10 ms 12140 KB Output is correct
32 Correct 11 ms 12524 KB Output is correct
33 Correct 9 ms 12140 KB Output is correct
34 Correct 10 ms 12268 KB Output is correct
35 Correct 13 ms 12268 KB Output is correct
36 Correct 11 ms 12396 KB Output is correct
37 Correct 11 ms 12268 KB Output is correct
38 Correct 10 ms 12140 KB Output is correct
39 Correct 11 ms 12268 KB Output is correct
40 Correct 11 ms 12268 KB Output is correct
41 Correct 11 ms 12396 KB Output is correct
42 Correct 10 ms 12268 KB Output is correct
43 Correct 10 ms 12524 KB Output is correct
44 Correct 9 ms 12140 KB Output is correct
45 Correct 11 ms 12396 KB Output is correct
46 Correct 11 ms 12396 KB Output is correct
47 Correct 9 ms 12140 KB Output is correct
48 Correct 11 ms 12268 KB Output is correct
49 Correct 10 ms 12268 KB Output is correct
50 Correct 11 ms 12396 KB Output is correct
51 Correct 11 ms 12268 KB Output is correct
52 Correct 12 ms 12268 KB Output is correct
53 Correct 10 ms 12268 KB Output is correct
54 Correct 11 ms 12268 KB Output is correct
55 Correct 9 ms 12140 KB Output is correct
56 Correct 65 ms 17892 KB Output is correct
57 Correct 159 ms 18304 KB Output is correct
58 Correct 11 ms 12268 KB Output is correct
59 Correct 9 ms 12140 KB Output is correct
60 Correct 9 ms 12140 KB Output is correct
61 Correct 146 ms 18284 KB Output is correct
62 Correct 12 ms 12268 KB Output is correct
63 Correct 131 ms 25196 KB Output is correct
64 Correct 127 ms 18028 KB Output is correct
65 Correct 11 ms 12268 KB Output is correct
66 Correct 171 ms 18796 KB Output is correct
67 Correct 11 ms 12268 KB Output is correct
68 Correct 11 ms 12268 KB Output is correct
69 Correct 70 ms 17892 KB Output is correct
70 Correct 11 ms 12524 KB Output is correct
71 Correct 127 ms 17900 KB Output is correct
72 Correct 134 ms 20332 KB Output is correct
73 Correct 9 ms 12140 KB Output is correct
74 Correct 134 ms 25324 KB Output is correct
75 Correct 134 ms 21740 KB Output is correct
76 Correct 10 ms 12396 KB Output is correct
77 Correct 11 ms 12268 KB Output is correct
78 Correct 65 ms 17892 KB Output is correct
79 Correct 71 ms 19044 KB Output is correct
80 Correct 11 ms 12268 KB Output is correct
81 Correct 11 ms 12268 KB Output is correct
82 Correct 10 ms 12140 KB Output is correct
83 Correct 10 ms 12140 KB Output is correct
84 Correct 10 ms 12268 KB Output is correct
85 Correct 138 ms 18924 KB Output is correct
86 Correct 11 ms 12268 KB Output is correct
87 Correct 145 ms 18156 KB Output is correct
88 Correct 9 ms 12140 KB Output is correct
89 Correct 162 ms 18156 KB Output is correct
90 Correct 163 ms 18756 KB Output is correct
91 Correct 143 ms 19180 KB Output is correct
92 Correct 61 ms 17892 KB Output is correct
93 Correct 10 ms 12268 KB Output is correct
94 Correct 9 ms 12140 KB Output is correct
95 Correct 74 ms 19044 KB Output is correct
96 Correct 154 ms 23020 KB Output is correct
97 Correct 12 ms 12268 KB Output is correct
98 Correct 9 ms 12140 KB Output is correct
99 Correct 66 ms 18532 KB Output is correct
100 Correct 12 ms 12268 KB Output is correct
101 Correct 170 ms 18376 KB Output is correct
102 Correct 137 ms 21740 KB Output is correct
103 Correct 10 ms 12268 KB Output is correct
104 Correct 11 ms 12396 KB Output is correct
105 Correct 11 ms 12268 KB Output is correct
106 Correct 13 ms 12268 KB Output is correct
107 Correct 10 ms 12268 KB Output is correct
108 Correct 498 ms 45664 KB Output is correct
109 Correct 982 ms 60012 KB Output is correct
110 Correct 895 ms 71148 KB Output is correct
111 Correct 1031 ms 71660 KB Output is correct
112 Correct 976 ms 62004 KB Output is correct
113 Correct 526 ms 47700 KB Output is correct
114 Correct 1072 ms 41964 KB Output is correct
115 Correct 1072 ms 41964 KB Output is correct
116 Correct 1188 ms 45164 KB Output is correct
117 Correct 1217 ms 48556 KB Output is correct
118 Correct 1080 ms 42840 KB Output is correct
119 Correct 1192 ms 48620 KB Output is correct
120 Correct 972 ms 62656 KB Output is correct
121 Correct 1258 ms 48620 KB Output is correct
122 Correct 1182 ms 46956 KB Output is correct
123 Correct 535 ms 48092 KB Output is correct
124 Correct 1363 ms 47828 KB Output is correct