답안 #102476

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
102476	2019-03-25T08:48:21 Z	AngusRitossa	Mergers (JOI19_mergers)	C++14	100 / 100	1553 ms	154716 KB

mergers

#include <bits/stdc++.h>
using namespace std;
#ifdef DEBUG
	#define D(x...) printf(x)
#else
	#define D(x...)
#endif
int n, k, amof[500010], c[500010];
vector<int> adj[500010];
int leaves;
int last;
map<int, int>* ms[500010];
int dfs(int a, int p = -1)
{
	int ambadchildren = 0;
	ms[a] = new map<int, int>();

	(*ms[a])[c[a]]++;
	if ((*ms[a])[c[a]] == amof[c[a]]) ms[a]->erase(c[a]);

	for (auto b : adj[a])
	{
		if (b != p) 
		{
			int am = dfs(b, a);
			ambadchildren += am;

			if (ms[b]->size() > ms[a]->size()) swap(ms[a], ms[b]);
			for (auto c : *ms[b])
			{
				(*ms[a])[c.first]+=c.second;
				if ((*ms[a])[c.first] == amof[c.first]) ms[a]->erase(c.first);
			}
		}
	}
	last = max(last, ambadchildren);
	if (p != -1)
	{
		int old = ambadchildren;
		ambadchildren = !ms[a]->size();
		D("%d %d\n", a, ambadchildren);
		if (ambadchildren) last = 1;
		if (!old) leaves += ambadchildren;
		else ambadchildren = old;
	}
	else if (p == -1 && ambadchildren == 1)
	{
		leaves += last == 1;
	}	
	return !!ambadchildren;
}	
int main()
{
	scanf("%d%d", &n, &k);
	for (int i = 1; i < n; i++)
	{
		int a, b;
		scanf("%d%d", &a, &b);
		adj[a].push_back(b);
		adj[b].push_back(a);
	}
	for (int i = 1; i <= n; i++) scanf("%d", &c[i]), amof[c[i]]++;
	dfs(1);
	D("%d\n", leaves);
	printf("%d\n", (leaves+1)/2);
}

Compilation message

mergers.cpp: In function 'int main()':
mergers.cpp:54:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d%d", &n, &k);
  ~~~~~^~~~~~~~~~~~~~~~
mergers.cpp:58:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d%d", &a, &b);
   ~~~~~^~~~~~~~~~~~~~~~
mergers.cpp:62:49: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  for (int i = 1; i <= n; i++) scanf("%d", &c[i]), amof[c[i]]++;
                               ~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~

Subtask #1
10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	12 ms	12204 KB	Output is correct
2	Correct	15 ms	12032 KB	Output is correct
3	Correct	15 ms	12160 KB	Output is correct
4	Correct	12 ms	12032 KB	Output is correct
5	Correct	13 ms	12160 KB	Output is correct
6	Correct	13 ms	12160 KB	Output is correct
7	Correct	12 ms	12160 KB	Output is correct
8	Correct	14 ms	12288 KB	Output is correct
9	Correct	12 ms	12132 KB	Output is correct
10	Correct	16 ms	12160 KB	Output is correct
11	Correct	13 ms	12032 KB	Output is correct
12	Correct	15 ms	12032 KB	Output is correct
13	Correct	14 ms	12160 KB	Output is correct
14	Correct	13 ms	12032 KB	Output is correct
15	Correct	13 ms	12184 KB	Output is correct
16	Correct	13 ms	12160 KB	Output is correct
17	Correct	14 ms	12160 KB	Output is correct
18	Correct	17 ms	12160 KB	Output is correct
19	Correct	14 ms	12160 KB	Output is correct
20	Correct	15 ms	12160 KB	Output is correct
21	Correct	15 ms	12076 KB	Output is correct
22	Correct	14 ms	12160 KB	Output is correct
23	Correct	13 ms	12160 KB	Output is correct
24	Correct	14 ms	12160 KB	Output is correct

Subtask #2
24.0 / 24.0

#	결과	실행 시간	메모리	Grader output
1	Correct	12 ms	12204 KB	Output is correct
2	Correct	15 ms	12032 KB	Output is correct
3	Correct	15 ms	12160 KB	Output is correct
4	Correct	12 ms	12032 KB	Output is correct
5	Correct	13 ms	12160 KB	Output is correct
6	Correct	13 ms	12160 KB	Output is correct
7	Correct	12 ms	12160 KB	Output is correct
8	Correct	14 ms	12288 KB	Output is correct
9	Correct	12 ms	12132 KB	Output is correct
10	Correct	16 ms	12160 KB	Output is correct
11	Correct	13 ms	12032 KB	Output is correct
12	Correct	15 ms	12032 KB	Output is correct
13	Correct	14 ms	12160 KB	Output is correct
14	Correct	13 ms	12032 KB	Output is correct
15	Correct	13 ms	12184 KB	Output is correct
16	Correct	13 ms	12160 KB	Output is correct
17	Correct	14 ms	12160 KB	Output is correct
18	Correct	17 ms	12160 KB	Output is correct
19	Correct	14 ms	12160 KB	Output is correct
20	Correct	15 ms	12160 KB	Output is correct
21	Correct	15 ms	12076 KB	Output is correct
22	Correct	14 ms	12160 KB	Output is correct
23	Correct	13 ms	12160 KB	Output is correct
24	Correct	14 ms	12160 KB	Output is correct
25	Correct	12 ms	12160 KB	Output is correct
26	Correct	15 ms	12416 KB	Output is correct
27	Correct	18 ms	12512 KB	Output is correct
28	Correct	16 ms	12664 KB	Output is correct
29	Correct	16 ms	12428 KB	Output is correct
30	Correct	17 ms	12800 KB	Output is correct
31	Correct	15 ms	12032 KB	Output is correct
32	Correct	17 ms	12672 KB	Output is correct
33	Correct	15 ms	12160 KB	Output is correct
34	Correct	15 ms	12544 KB	Output is correct
35	Correct	16 ms	12416 KB	Output is correct
36	Correct	16 ms	12544 KB	Output is correct
37	Correct	16 ms	12644 KB	Output is correct
38	Correct	15 ms	12160 KB	Output is correct
39	Correct	20 ms	12800 KB	Output is correct
40	Correct	16 ms	12544 KB	Output is correct
41	Correct	15 ms	12544 KB	Output is correct
42	Correct	17 ms	12544 KB	Output is correct
43	Correct	15 ms	12928 KB	Output is correct
44	Correct	13 ms	12032 KB	Output is correct
45	Correct	17 ms	12544 KB	Output is correct
46	Correct	15 ms	12672 KB	Output is correct
47	Correct	13 ms	12160 KB	Output is correct
48	Correct	16 ms	12544 KB	Output is correct
49	Correct	18 ms	12416 KB	Output is correct
50	Correct	14 ms	12544 KB	Output is correct
51	Correct	16 ms	12544 KB	Output is correct
52	Correct	15 ms	12544 KB	Output is correct
53	Correct	18 ms	12544 KB	Output is correct
54	Correct	16 ms	12800 KB	Output is correct

Subtask #3
14.0 / 14.0

#	결과	실행 시간	메모리	Grader output
1	Correct	12 ms	12204 KB	Output is correct
2	Correct	15 ms	12032 KB	Output is correct
3	Correct	15 ms	12160 KB	Output is correct
4	Correct	12 ms	12032 KB	Output is correct
5	Correct	13 ms	12160 KB	Output is correct
6	Correct	13 ms	12160 KB	Output is correct
7	Correct	12 ms	12160 KB	Output is correct
8	Correct	14 ms	12288 KB	Output is correct
9	Correct	12 ms	12132 KB	Output is correct
10	Correct	16 ms	12160 KB	Output is correct
11	Correct	13 ms	12032 KB	Output is correct
12	Correct	15 ms	12032 KB	Output is correct
13	Correct	14 ms	12160 KB	Output is correct
14	Correct	13 ms	12032 KB	Output is correct
15	Correct	13 ms	12184 KB	Output is correct
16	Correct	13 ms	12160 KB	Output is correct
17	Correct	14 ms	12160 KB	Output is correct
18	Correct	17 ms	12160 KB	Output is correct
19	Correct	14 ms	12160 KB	Output is correct
20	Correct	15 ms	12160 KB	Output is correct
21	Correct	15 ms	12076 KB	Output is correct
22	Correct	14 ms	12160 KB	Output is correct
23	Correct	13 ms	12160 KB	Output is correct
24	Correct	14 ms	12160 KB	Output is correct
25	Correct	13 ms	12160 KB	Output is correct
26	Correct	135 ms	27764 KB	Output is correct
27	Correct	225 ms	34224 KB	Output is correct
28	Correct	16 ms	12672 KB	Output is correct
29	Correct	14 ms	12160 KB	Output is correct
30	Correct	16 ms	12032 KB	Output is correct
31	Correct	135 ms	27512 KB	Output is correct
32	Correct	17 ms	12544 KB	Output is correct
33	Correct	168 ms	39008 KB	Output is correct
34	Correct	161 ms	32760 KB	Output is correct
35	Correct	18 ms	12544 KB	Output is correct
36	Correct	168 ms	28700 KB	Output is correct
37	Correct	17 ms	12544 KB	Output is correct
38	Correct	17 ms	12544 KB	Output is correct
39	Correct	128 ms	27752 KB	Output is correct
40	Correct	14 ms	12936 KB	Output is correct
41	Correct	142 ms	27424 KB	Output is correct
42	Correct	166 ms	31228 KB	Output is correct
43	Correct	12 ms	12032 KB	Output is correct
44	Correct	174 ms	39416 KB	Output is correct
45	Correct	220 ms	34680 KB	Output is correct
46	Correct	15 ms	12544 KB	Output is correct
47	Correct	20 ms	12772 KB	Output is correct

Subtask #4
22.0 / 22.0

#	결과	실행 시간	메모리	Grader output
1	Correct	121 ms	27720 KB	Output is correct
2	Correct	166 ms	23532 KB	Output is correct
3	Correct	16 ms	12416 KB	Output is correct
4	Correct	18 ms	12544 KB	Output is correct
5	Correct	14 ms	12032 KB	Output is correct
6	Correct	14 ms	12132 KB	Output is correct
7	Correct	16 ms	12544 KB	Output is correct
8	Correct	190 ms	30072 KB	Output is correct
9	Correct	15 ms	12544 KB	Output is correct
10	Correct	186 ms	27352 KB	Output is correct
11	Correct	13 ms	12160 KB	Output is correct
12	Correct	160 ms	27384 KB	Output is correct
13	Correct	149 ms	26744 KB	Output is correct
14	Correct	162 ms	23088 KB	Output is correct
15	Correct	121 ms	27764 KB	Output is correct
16	Correct	16 ms	12544 KB	Output is correct
17	Correct	12 ms	12032 KB	Output is correct
18	Correct	183 ms	24432 KB	Output is correct
19	Correct	205 ms	29560 KB	Output is correct
20	Correct	16 ms	12672 KB	Output is correct
21	Correct	13 ms	12160 KB	Output is correct
22	Correct	168 ms	27136 KB	Output is correct
23	Correct	18 ms	12544 KB	Output is correct
24	Correct	147 ms	26968 KB	Output is correct
25	Correct	219 ms	27356 KB	Output is correct
26	Correct	17 ms	12416 KB	Output is correct
27	Correct	16 ms	12544 KB	Output is correct
28	Correct	15 ms	12544 KB	Output is correct
29	Correct	17 ms	12544 KB	Output is correct
30	Correct	16 ms	12544 KB	Output is correct

Subtask #5
30.0 / 30.0

#	결과	실행 시간	메모리	Grader output
1	Correct	12 ms	12204 KB	Output is correct
2	Correct	15 ms	12032 KB	Output is correct
3	Correct	15 ms	12160 KB	Output is correct
4	Correct	12 ms	12032 KB	Output is correct
5	Correct	13 ms	12160 KB	Output is correct
6	Correct	13 ms	12160 KB	Output is correct
7	Correct	12 ms	12160 KB	Output is correct
8	Correct	14 ms	12288 KB	Output is correct
9	Correct	12 ms	12132 KB	Output is correct
10	Correct	16 ms	12160 KB	Output is correct
11	Correct	13 ms	12032 KB	Output is correct
12	Correct	15 ms	12032 KB	Output is correct
13	Correct	14 ms	12160 KB	Output is correct
14	Correct	13 ms	12032 KB	Output is correct
15	Correct	13 ms	12184 KB	Output is correct
16	Correct	13 ms	12160 KB	Output is correct
17	Correct	14 ms	12160 KB	Output is correct
18	Correct	17 ms	12160 KB	Output is correct
19	Correct	14 ms	12160 KB	Output is correct
20	Correct	15 ms	12160 KB	Output is correct
21	Correct	15 ms	12076 KB	Output is correct
22	Correct	14 ms	12160 KB	Output is correct
23	Correct	13 ms	12160 KB	Output is correct
24	Correct	14 ms	12160 KB	Output is correct
25	Correct	12 ms	12160 KB	Output is correct
26	Correct	15 ms	12416 KB	Output is correct
27	Correct	18 ms	12512 KB	Output is correct
28	Correct	16 ms	12664 KB	Output is correct
29	Correct	16 ms	12428 KB	Output is correct
30	Correct	17 ms	12800 KB	Output is correct
31	Correct	15 ms	12032 KB	Output is correct
32	Correct	17 ms	12672 KB	Output is correct
33	Correct	15 ms	12160 KB	Output is correct
34	Correct	15 ms	12544 KB	Output is correct
35	Correct	16 ms	12416 KB	Output is correct
36	Correct	16 ms	12544 KB	Output is correct
37	Correct	16 ms	12644 KB	Output is correct
38	Correct	15 ms	12160 KB	Output is correct
39	Correct	20 ms	12800 KB	Output is correct
40	Correct	16 ms	12544 KB	Output is correct
41	Correct	15 ms	12544 KB	Output is correct
42	Correct	17 ms	12544 KB	Output is correct
43	Correct	15 ms	12928 KB	Output is correct
44	Correct	13 ms	12032 KB	Output is correct
45	Correct	17 ms	12544 KB	Output is correct
46	Correct	15 ms	12672 KB	Output is correct
47	Correct	13 ms	12160 KB	Output is correct
48	Correct	16 ms	12544 KB	Output is correct
49	Correct	18 ms	12416 KB	Output is correct
50	Correct	14 ms	12544 KB	Output is correct
51	Correct	16 ms	12544 KB	Output is correct
52	Correct	15 ms	12544 KB	Output is correct
53	Correct	18 ms	12544 KB	Output is correct
54	Correct	16 ms	12800 KB	Output is correct
55	Correct	13 ms	12160 KB	Output is correct
56	Correct	135 ms	27764 KB	Output is correct
57	Correct	225 ms	34224 KB	Output is correct
58	Correct	16 ms	12672 KB	Output is correct
59	Correct	14 ms	12160 KB	Output is correct
60	Correct	16 ms	12032 KB	Output is correct
61	Correct	135 ms	27512 KB	Output is correct
62	Correct	17 ms	12544 KB	Output is correct
63	Correct	168 ms	39008 KB	Output is correct
64	Correct	161 ms	32760 KB	Output is correct
65	Correct	18 ms	12544 KB	Output is correct
66	Correct	168 ms	28700 KB	Output is correct
67	Correct	17 ms	12544 KB	Output is correct
68	Correct	17 ms	12544 KB	Output is correct
69	Correct	128 ms	27752 KB	Output is correct
70	Correct	14 ms	12936 KB	Output is correct
71	Correct	142 ms	27424 KB	Output is correct
72	Correct	166 ms	31228 KB	Output is correct
73	Correct	12 ms	12032 KB	Output is correct
74	Correct	174 ms	39416 KB	Output is correct
75	Correct	220 ms	34680 KB	Output is correct
76	Correct	15 ms	12544 KB	Output is correct
77	Correct	20 ms	12772 KB	Output is correct
78	Correct	121 ms	27720 KB	Output is correct
79	Correct	166 ms	23532 KB	Output is correct
80	Correct	16 ms	12416 KB	Output is correct
81	Correct	18 ms	12544 KB	Output is correct
82	Correct	14 ms	12032 KB	Output is correct
83	Correct	14 ms	12132 KB	Output is correct
84	Correct	16 ms	12544 KB	Output is correct
85	Correct	190 ms	30072 KB	Output is correct
86	Correct	15 ms	12544 KB	Output is correct
87	Correct	186 ms	27352 KB	Output is correct
88	Correct	13 ms	12160 KB	Output is correct
89	Correct	160 ms	27384 KB	Output is correct
90	Correct	149 ms	26744 KB	Output is correct
91	Correct	162 ms	23088 KB	Output is correct
92	Correct	121 ms	27764 KB	Output is correct
93	Correct	16 ms	12544 KB	Output is correct
94	Correct	12 ms	12032 KB	Output is correct
95	Correct	183 ms	24432 KB	Output is correct
96	Correct	205 ms	29560 KB	Output is correct
97	Correct	16 ms	12672 KB	Output is correct
98	Correct	13 ms	12160 KB	Output is correct
99	Correct	168 ms	27136 KB	Output is correct
100	Correct	18 ms	12544 KB	Output is correct
101	Correct	147 ms	26968 KB	Output is correct
102	Correct	219 ms	27356 KB	Output is correct
103	Correct	17 ms	12416 KB	Output is correct
104	Correct	16 ms	12544 KB	Output is correct
105	Correct	15 ms	12544 KB	Output is correct
106	Correct	17 ms	12544 KB	Output is correct
107	Correct	16 ms	12544 KB	Output is correct
108	Correct	1336 ms	89160 KB	Output is correct
109	Correct	1045 ms	118136 KB	Output is correct
110	Correct	1043 ms	136208 KB	Output is correct
111	Correct	1131 ms	104824 KB	Output is correct
112	Correct	1086 ms	89012 KB	Output is correct
113	Correct	904 ms	73320 KB	Output is correct
114	Correct	912 ms	89040 KB	Output is correct
115	Correct	845 ms	89044 KB	Output is correct
116	Correct	1247 ms	146556 KB	Output is correct
117	Correct	992 ms	67448 KB	Output is correct
118	Correct	869 ms	87500 KB	Output is correct
119	Correct	1093 ms	67592 KB	Output is correct
120	Correct	1020 ms	90228 KB	Output is correct
121	Correct	905 ms	67624 KB	Output is correct
122	Correct	1553 ms	154716 KB	Output is correct
123	Correct	754 ms	69036 KB	Output is correct
124	Correct	1061 ms	66680 KB	Output is correct

답안 #102476

Compilation message

Subtask #1 10.0 / 10.0

Subtask #2 24.0 / 24.0

Subtask #3 14.0 / 14.0

Subtask #4 22.0 / 22.0

Subtask #5 30.0 / 30.0

Subtask #1
10.0 / 10.0

Subtask #2
24.0 / 24.0

Subtask #3
14.0 / 14.0

Subtask #4
22.0 / 22.0

Subtask #5
30.0 / 30.0