# | 제출 시각 | 아이디 | 문제 | 언어 | 결과 | 실행 시간 | 메모리 |
---|---|---|---|---|---|---|---|
110825 | 2019-05-12T10:31:03 Z | IOrtroiii | Mergers (JOI19_mergers) | C++14 | 1137 ms | 69624 KB |
#include <bits/stdc++.h> using namespace std; const int N = 500500; int n, m; int a[N]; pair<int, int> e[N]; vector< pair<int, int> > g[N]; bool br[N]; int num[N], low[N], tt; void dfs(int u,int p) { num[u] = low[u] = ++tt; for (auto nx : g[u]) { int v, id; tie(v, id) = nx; if (!num[v]) { dfs(v, id); low[u] = min(low[u], low[v]); if (low[v] > num[u]) br[id] = true; } else if (id != p) low[u] = min(low[u], num[v]); } } int cnt; int comp[N]; int deg[N]; void dfs2(int u) { comp[u] = cnt; for (auto nx : g[u]) { int v, id; tie(v, id) = nx; if (!br[id] && !comp[v]) { dfs2(v); } } } int main() { scanf("%d %d", &n, &m); for (int i = 1; i < n; ++i) { int u, v; scanf("%d %d", &u, &v); e[i] = {u, v}; } for (int i = 1; i <= n; ++i) scanf("%d", a + i); for (int i = 1; i < n; ++i) { int u, v; tie(u, v) = e[i]; u = a[u], v = a[v]; if (u == v) continue; g[u].push_back({v, i}); g[v].push_back({u, i}); } dfs(1, -1); for (int i = 1; i <= m; ++i) { if (!comp[i]) { ++cnt; dfs2(i); } } for (int i = 1; i <= n; ++i) { for (auto nx : g[i]) { int v, id; tie(v, id) = nx; if (br[id]) ++deg[comp[v]]; } } printf("%d\n", (count(deg + 1, deg + cnt + 1, 1) + 1) / 2); }
Compilation message
# | 결과 | 실행 시간 | 메모리 | Grader output |
---|---|---|---|---|
1 | Correct | 13 ms | 12160 KB | Output is correct |
2 | Correct | 13 ms | 12160 KB | Output is correct |
3 | Correct | 14 ms | 12160 KB | Output is correct |
4 | Correct | 13 ms | 12160 KB | Output is correct |
5 | Correct | 15 ms | 12160 KB | Output is correct |
6 | Correct | 14 ms | 12160 KB | Output is correct |
7 | Correct | 14 ms | 12160 KB | Output is correct |
8 | Correct | 16 ms | 12160 KB | Output is correct |
9 | Correct | 14 ms | 12132 KB | Output is correct |
10 | Correct | 14 ms | 12160 KB | Output is correct |
11 | Correct | 13 ms | 12076 KB | Output is correct |
12 | Correct | 13 ms | 12160 KB | Output is correct |
13 | Correct | 14 ms | 12160 KB | Output is correct |
14 | Correct | 13 ms | 12160 KB | Output is correct |
15 | Correct | 14 ms | 12160 KB | Output is correct |
16 | Correct | 15 ms | 12160 KB | Output is correct |
17 | Correct | 12 ms | 12160 KB | Output is correct |
18 | Correct | 12 ms | 12160 KB | Output is correct |
19 | Correct | 16 ms | 12160 KB | Output is correct |
20 | Correct | 15 ms | 12160 KB | Output is correct |
21 | Correct | 13 ms | 12160 KB | Output is correct |
22 | Correct | 13 ms | 12160 KB | Output is correct |
23 | Correct | 15 ms | 12160 KB | Output is correct |
24 | Correct | 13 ms | 12160 KB | Output is correct |
# | 결과 | 실행 시간 | 메모리 | Grader output |
---|---|---|---|---|
1 | Correct | 13 ms | 12160 KB | Output is correct |
2 | Correct | 13 ms | 12160 KB | Output is correct |
3 | Correct | 14 ms | 12160 KB | Output is correct |
4 | Correct | 13 ms | 12160 KB | Output is correct |
5 | Correct | 15 ms | 12160 KB | Output is correct |
6 | Correct | 14 ms | 12160 KB | Output is correct |
7 | Correct | 14 ms | 12160 KB | Output is correct |
8 | Correct | 16 ms | 12160 KB | Output is correct |
9 | Correct | 14 ms | 12132 KB | Output is correct |
10 | Correct | 14 ms | 12160 KB | Output is correct |
11 | Correct | 13 ms | 12076 KB | Output is correct |
12 | Correct | 13 ms | 12160 KB | Output is correct |
13 | Correct | 14 ms | 12160 KB | Output is correct |
14 | Correct | 13 ms | 12160 KB | Output is correct |
15 | Correct | 14 ms | 12160 KB | Output is correct |
16 | Correct | 15 ms | 12160 KB | Output is correct |
17 | Correct | 12 ms | 12160 KB | Output is correct |
18 | Correct | 12 ms | 12160 KB | Output is correct |
19 | Correct | 16 ms | 12160 KB | Output is correct |
20 | Correct | 15 ms | 12160 KB | Output is correct |
21 | Correct | 13 ms | 12160 KB | Output is correct |
22 | Correct | 13 ms | 12160 KB | Output is correct |
23 | Correct | 15 ms | 12160 KB | Output is correct |
24 | Correct | 13 ms | 12160 KB | Output is correct |
25 | Correct | 17 ms | 12160 KB | Output is correct |
26 | Correct | 18 ms | 12288 KB | Output is correct |
27 | Correct | 15 ms | 12152 KB | Output is correct |
28 | Correct | 15 ms | 12416 KB | Output is correct |
29 | Correct | 16 ms | 12508 KB | Output is correct |
30 | Correct | 14 ms | 12288 KB | Output is correct |
31 | Correct | 15 ms | 12160 KB | Output is correct |
32 | Correct | 17 ms | 12416 KB | Output is correct |
33 | Correct | 17 ms | 12160 KB | Output is correct |
34 | Correct | 15 ms | 12288 KB | Output is correct |
35 | Correct | 15 ms | 12544 KB | Output is correct |
36 | Correct | 14 ms | 12160 KB | Output is correct |
37 | Correct | 17 ms | 12288 KB | Output is correct |
38 | Correct | 14 ms | 12160 KB | Output is correct |
39 | Correct | 15 ms | 12416 KB | Output is correct |
40 | Correct | 14 ms | 12160 KB | Output is correct |
41 | Correct | 14 ms | 12160 KB | Output is correct |
42 | Correct | 16 ms | 12288 KB | Output is correct |
43 | Correct | 15 ms | 12164 KB | Output is correct |
44 | Correct | 13 ms | 12160 KB | Output is correct |
45 | Correct | 15 ms | 12416 KB | Output is correct |
46 | Correct | 18 ms | 12288 KB | Output is correct |
47 | Correct | 13 ms | 12160 KB | Output is correct |
48 | Correct | 16 ms | 12288 KB | Output is correct |
49 | Correct | 15 ms | 12408 KB | Output is correct |
50 | Correct | 15 ms | 12416 KB | Output is correct |
51 | Correct | 14 ms | 12280 KB | Output is correct |
52 | Correct | 16 ms | 12288 KB | Output is correct |
53 | Correct | 15 ms | 12288 KB | Output is correct |
54 | Correct | 16 ms | 12288 KB | Output is correct |
# | 결과 | 실행 시간 | 메모리 | Grader output |
---|---|---|---|---|
1 | Correct | 13 ms | 12160 KB | Output is correct |
2 | Correct | 13 ms | 12160 KB | Output is correct |
3 | Correct | 14 ms | 12160 KB | Output is correct |
4 | Correct | 13 ms | 12160 KB | Output is correct |
5 | Correct | 15 ms | 12160 KB | Output is correct |
6 | Correct | 14 ms | 12160 KB | Output is correct |
7 | Correct | 14 ms | 12160 KB | Output is correct |
8 | Correct | 16 ms | 12160 KB | Output is correct |
9 | Correct | 14 ms | 12132 KB | Output is correct |
10 | Correct | 14 ms | 12160 KB | Output is correct |
11 | Correct | 13 ms | 12076 KB | Output is correct |
12 | Correct | 13 ms | 12160 KB | Output is correct |
13 | Correct | 14 ms | 12160 KB | Output is correct |
14 | Correct | 13 ms | 12160 KB | Output is correct |
15 | Correct | 14 ms | 12160 KB | Output is correct |
16 | Correct | 15 ms | 12160 KB | Output is correct |
17 | Correct | 12 ms | 12160 KB | Output is correct |
18 | Correct | 12 ms | 12160 KB | Output is correct |
19 | Correct | 16 ms | 12160 KB | Output is correct |
20 | Correct | 15 ms | 12160 KB | Output is correct |
21 | Correct | 13 ms | 12160 KB | Output is correct |
22 | Correct | 13 ms | 12160 KB | Output is correct |
23 | Correct | 15 ms | 12160 KB | Output is correct |
24 | Correct | 13 ms | 12160 KB | Output is correct |
25 | Correct | 15 ms | 12160 KB | Output is correct |
26 | Correct | 53 ms | 16496 KB | Output is correct |
27 | Correct | 61 ms | 16760 KB | Output is correct |
28 | Correct | 17 ms | 12160 KB | Output is correct |
29 | Correct | 14 ms | 12160 KB | Output is correct |
30 | Correct | 18 ms | 12152 KB | Output is correct |
31 | Correct | 49 ms | 14840 KB | Output is correct |
32 | Correct | 13 ms | 12288 KB | Output is correct |
33 | Correct | 55 ms | 16468 KB | Output is correct |
34 | Correct | 51 ms | 16504 KB | Output is correct |
35 | Correct | 13 ms | 12160 KB | Output is correct |
36 | Correct | 43 ms | 14840 KB | Output is correct |
37 | Correct | 13 ms | 12160 KB | Output is correct |
38 | Correct | 14 ms | 12160 KB | Output is correct |
39 | Correct | 46 ms | 16488 KB | Output is correct |
40 | Correct | 14 ms | 12160 KB | Output is correct |
41 | Correct | 43 ms | 14712 KB | Output is correct |
42 | Correct | 48 ms | 16504 KB | Output is correct |
43 | Correct | 13 ms | 12160 KB | Output is correct |
44 | Correct | 46 ms | 14712 KB | Output is correct |
45 | Correct | 48 ms | 16504 KB | Output is correct |
46 | Correct | 15 ms | 12288 KB | Output is correct |
47 | Correct | 14 ms | 12260 KB | Output is correct |
# | 결과 | 실행 시간 | 메모리 | Grader output |
---|---|---|---|---|
1 | Correct | 55 ms | 16596 KB | Output is correct |
2 | Correct | 84 ms | 20688 KB | Output is correct |
3 | Correct | 14 ms | 12288 KB | Output is correct |
4 | Correct | 14 ms | 12160 KB | Output is correct |
5 | Correct | 14 ms | 12160 KB | Output is correct |
6 | Correct | 14 ms | 12160 KB | Output is correct |
7 | Correct | 15 ms | 12288 KB | Output is correct |
8 | Correct | 103 ms | 18824 KB | Output is correct |
9 | Correct | 15 ms | 12160 KB | Output is correct |
10 | Correct | 51 ms | 14968 KB | Output is correct |
11 | Correct | 14 ms | 12160 KB | Output is correct |
12 | Correct | 53 ms | 15000 KB | Output is correct |
13 | Correct | 80 ms | 18552 KB | Output is correct |
14 | Correct | 150 ms | 20472 KB | Output is correct |
15 | Correct | 52 ms | 16488 KB | Output is correct |
16 | Correct | 15 ms | 12288 KB | Output is correct |
17 | Correct | 13 ms | 12160 KB | Output is correct |
18 | Correct | 105 ms | 20188 KB | Output is correct |
19 | Correct | 140 ms | 25592 KB | Output is correct |
20 | Correct | 16 ms | 12288 KB | Output is correct |
21 | Correct | 16 ms | 12160 KB | Output is correct |
22 | Correct | 71 ms | 18284 KB | Output is correct |
23 | Correct | 15 ms | 12288 KB | Output is correct |
24 | Correct | 54 ms | 15608 KB | Output is correct |
25 | Correct | 130 ms | 23160 KB | Output is correct |
26 | Correct | 15 ms | 12416 KB | Output is correct |
27 | Correct | 15 ms | 12416 KB | Output is correct |
28 | Correct | 15 ms | 12288 KB | Output is correct |
29 | Correct | 18 ms | 12288 KB | Output is correct |
30 | Correct | 14 ms | 12288 KB | Output is correct |
# | 결과 | 실행 시간 | 메모리 | Grader output |
---|---|---|---|---|
1 | Correct | 13 ms | 12160 KB | Output is correct |
2 | Correct | 13 ms | 12160 KB | Output is correct |
3 | Correct | 14 ms | 12160 KB | Output is correct |
4 | Correct | 13 ms | 12160 KB | Output is correct |
5 | Correct | 15 ms | 12160 KB | Output is correct |
6 | Correct | 14 ms | 12160 KB | Output is correct |
7 | Correct | 14 ms | 12160 KB | Output is correct |
8 | Correct | 16 ms | 12160 KB | Output is correct |
9 | Correct | 14 ms | 12132 KB | Output is correct |
10 | Correct | 14 ms | 12160 KB | Output is correct |
11 | Correct | 13 ms | 12076 KB | Output is correct |
12 | Correct | 13 ms | 12160 KB | Output is correct |
13 | Correct | 14 ms | 12160 KB | Output is correct |
14 | Correct | 13 ms | 12160 KB | Output is correct |
15 | Correct | 14 ms | 12160 KB | Output is correct |
16 | Correct | 15 ms | 12160 KB | Output is correct |
17 | Correct | 12 ms | 12160 KB | Output is correct |
18 | Correct | 12 ms | 12160 KB | Output is correct |
19 | Correct | 16 ms | 12160 KB | Output is correct |
20 | Correct | 15 ms | 12160 KB | Output is correct |
21 | Correct | 13 ms | 12160 KB | Output is correct |
22 | Correct | 13 ms | 12160 KB | Output is correct |
23 | Correct | 15 ms | 12160 KB | Output is correct |
24 | Correct | 13 ms | 12160 KB | Output is correct |
25 | Correct | 17 ms | 12160 KB | Output is correct |
26 | Correct | 18 ms | 12288 KB | Output is correct |
27 | Correct | 15 ms | 12152 KB | Output is correct |
28 | Correct | 15 ms | 12416 KB | Output is correct |
29 | Correct | 16 ms | 12508 KB | Output is correct |
30 | Correct | 14 ms | 12288 KB | Output is correct |
31 | Correct | 15 ms | 12160 KB | Output is correct |
32 | Correct | 17 ms | 12416 KB | Output is correct |
33 | Correct | 17 ms | 12160 KB | Output is correct |
34 | Correct | 15 ms | 12288 KB | Output is correct |
35 | Correct | 15 ms | 12544 KB | Output is correct |
36 | Correct | 14 ms | 12160 KB | Output is correct |
37 | Correct | 17 ms | 12288 KB | Output is correct |
38 | Correct | 14 ms | 12160 KB | Output is correct |
39 | Correct | 15 ms | 12416 KB | Output is correct |
40 | Correct | 14 ms | 12160 KB | Output is correct |
41 | Correct | 14 ms | 12160 KB | Output is correct |
42 | Correct | 16 ms | 12288 KB | Output is correct |
43 | Correct | 15 ms | 12164 KB | Output is correct |
44 | Correct | 13 ms | 12160 KB | Output is correct |
45 | Correct | 15 ms | 12416 KB | Output is correct |
46 | Correct | 18 ms | 12288 KB | Output is correct |
47 | Correct | 13 ms | 12160 KB | Output is correct |
48 | Correct | 16 ms | 12288 KB | Output is correct |
49 | Correct | 15 ms | 12408 KB | Output is correct |
50 | Correct | 15 ms | 12416 KB | Output is correct |
51 | Correct | 14 ms | 12280 KB | Output is correct |
52 | Correct | 16 ms | 12288 KB | Output is correct |
53 | Correct | 15 ms | 12288 KB | Output is correct |
54 | Correct | 16 ms | 12288 KB | Output is correct |
55 | Correct | 15 ms | 12160 KB | Output is correct |
56 | Correct | 53 ms | 16496 KB | Output is correct |
57 | Correct | 61 ms | 16760 KB | Output is correct |
58 | Correct | 17 ms | 12160 KB | Output is correct |
59 | Correct | 14 ms | 12160 KB | Output is correct |
60 | Correct | 18 ms | 12152 KB | Output is correct |
61 | Correct | 49 ms | 14840 KB | Output is correct |
62 | Correct | 13 ms | 12288 KB | Output is correct |
63 | Correct | 55 ms | 16468 KB | Output is correct |
64 | Correct | 51 ms | 16504 KB | Output is correct |
65 | Correct | 13 ms | 12160 KB | Output is correct |
66 | Correct | 43 ms | 14840 KB | Output is correct |
67 | Correct | 13 ms | 12160 KB | Output is correct |
68 | Correct | 14 ms | 12160 KB | Output is correct |
69 | Correct | 46 ms | 16488 KB | Output is correct |
70 | Correct | 14 ms | 12160 KB | Output is correct |
71 | Correct | 43 ms | 14712 KB | Output is correct |
72 | Correct | 48 ms | 16504 KB | Output is correct |
73 | Correct | 13 ms | 12160 KB | Output is correct |
74 | Correct | 46 ms | 14712 KB | Output is correct |
75 | Correct | 48 ms | 16504 KB | Output is correct |
76 | Correct | 15 ms | 12288 KB | Output is correct |
77 | Correct | 14 ms | 12260 KB | Output is correct |
78 | Correct | 55 ms | 16596 KB | Output is correct |
79 | Correct | 84 ms | 20688 KB | Output is correct |
80 | Correct | 14 ms | 12288 KB | Output is correct |
81 | Correct | 14 ms | 12160 KB | Output is correct |
82 | Correct | 14 ms | 12160 KB | Output is correct |
83 | Correct | 14 ms | 12160 KB | Output is correct |
84 | Correct | 15 ms | 12288 KB | Output is correct |
85 | Correct | 103 ms | 18824 KB | Output is correct |
86 | Correct | 15 ms | 12160 KB | Output is correct |
87 | Correct | 51 ms | 14968 KB | Output is correct |
88 | Correct | 14 ms | 12160 KB | Output is correct |
89 | Correct | 53 ms | 15000 KB | Output is correct |
90 | Correct | 80 ms | 18552 KB | Output is correct |
91 | Correct | 150 ms | 20472 KB | Output is correct |
92 | Correct | 52 ms | 16488 KB | Output is correct |
93 | Correct | 15 ms | 12288 KB | Output is correct |
94 | Correct | 13 ms | 12160 KB | Output is correct |
95 | Correct | 105 ms | 20188 KB | Output is correct |
96 | Correct | 140 ms | 25592 KB | Output is correct |
97 | Correct | 16 ms | 12288 KB | Output is correct |
98 | Correct | 16 ms | 12160 KB | Output is correct |
99 | Correct | 71 ms | 18284 KB | Output is correct |
100 | Correct | 15 ms | 12288 KB | Output is correct |
101 | Correct | 54 ms | 15608 KB | Output is correct |
102 | Correct | 130 ms | 23160 KB | Output is correct |
103 | Correct | 15 ms | 12416 KB | Output is correct |
104 | Correct | 15 ms | 12416 KB | Output is correct |
105 | Correct | 15 ms | 12288 KB | Output is correct |
106 | Correct | 18 ms | 12288 KB | Output is correct |
107 | Correct | 14 ms | 12288 KB | Output is correct |
108 | Correct | 544 ms | 43664 KB | Output is correct |
109 | Correct | 192 ms | 25628 KB | Output is correct |
110 | Correct | 194 ms | 25616 KB | Output is correct |
111 | Correct | 1089 ms | 69624 KB | Output is correct |
112 | Correct | 1068 ms | 67236 KB | Output is correct |
113 | Correct | 527 ms | 53572 KB | Output is correct |
114 | Correct | 181 ms | 25600 KB | Output is correct |
115 | Correct | 193 ms | 25564 KB | Output is correct |
116 | Correct | 550 ms | 43256 KB | Output is correct |
117 | Correct | 1083 ms | 54968 KB | Output is correct |
118 | Correct | 199 ms | 26716 KB | Output is correct |
119 | Correct | 943 ms | 55004 KB | Output is correct |
120 | Correct | 1137 ms | 66472 KB | Output is correct |
121 | Correct | 1083 ms | 55200 KB | Output is correct |
122 | Correct | 830 ms | 55512 KB | Output is correct |
123 | Correct | 594 ms | 56028 KB | Output is correct |
124 | Correct | 1114 ms | 50808 KB | Output is correct |