oj.uz

Submission #102476

# Submission time Handle Problem Language Result Execution time Memory
102476 2019-03-25T08:48:21 Z AngusRitossa Mergers (JOI19_mergers) C++14
100 / 100
 1553 ms 154716 KB 
#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

# Verdict Execution time Memory 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

# Verdict Execution time Memory 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

# Verdict Execution time Memory 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

# Verdict Execution time Memory 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

# Verdict Execution time Memory 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