oj.uz

Submission #886322

# Submission time Handle Problem Language Result Execution time Memory
886322 2023-12-11T20:35:12 Z maxFedorchuk Mergers (JOI19_mergers) C++14
100 / 100
 535 ms 80928 KB 
#include <bits/stdc++.h>
using namespace std;
int c[500005], l[500005], r[500005], t, t2, ans;
vector<int> adj[500005];
void f(int u, int p)
{
    t++;
    if (!l[c[u]])
        l[c[u]]=t;
    for (int v:adj[u])
        if (v!=p)
            f(v, u);
    r[c[u]]=t;
}
pair<pair<int, int>, int> f2(int u, int p)
{
    t2++;
    int t3=t2, x=l[c[u]], y=r[c[u]], z=0;
    for (int v:adj[u])
    {
        if (v!=p)
        {
            pair<pair<int, int>, int> r=f2(v, u);
            x=min(x, r.first.first);
            y=max(y, r.first.second);
            z+=r.second;
        }
    }
    if (!p)
        ans+=(z==1);
    else if (x==t3 && y==t2)
    {
        ans+=!z;
        z=1;
    }
    return {{x, y}, z};
}
int main()
{
    ios::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
    int n, k;
    cin >> n >> k;
    for (int i=1; i<n; i++)
    {
        int u, v;
        cin >> u >> v;
        adj[u].push_back(v);
        adj[v].push_back(u);
    }
    for (int i=1; i<=n; i++)
        cin >> c[i];
    f(1, 0);
    f2(1, 0);
    cout << (ans+1)/2;
    return 0;
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 14940 KB Output is correct
2 Correct 3 ms 14940 KB Output is correct
3 Correct 3 ms 14940 KB Output is correct
4 Correct 4 ms 14940 KB Output is correct
5 Correct 4 ms 15004 KB Output is correct
6 Correct 4 ms 14940 KB Output is correct
7 Correct 3 ms 14940 KB Output is correct
8 Correct 4 ms 14940 KB Output is correct
9 Correct 3 ms 14940 KB Output is correct
10 Correct 3 ms 15012 KB Output is correct
11 Correct 3 ms 14940 KB Output is correct
12 Correct 3 ms 14940 KB Output is correct
13 Correct 4 ms 14940 KB Output is correct
14 Correct 3 ms 14956 KB Output is correct
15 Correct 3 ms 14936 KB Output is correct
16 Correct 3 ms 15016 KB Output is correct
17 Correct 3 ms 14940 KB Output is correct
18 Correct 3 ms 14936 KB Output is correct
19 Correct 3 ms 14940 KB Output is correct
20 Correct 3 ms 15004 KB Output is correct
21 Correct 3 ms 14952 KB Output is correct
22 Correct 3 ms 15004 KB Output is correct
23 Correct 3 ms 14936 KB Output is correct
24 Correct 3 ms 14956 KB Output is correct

Subtask #2
24.0 / 24.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 14940 KB Output is correct
2 Correct 3 ms 14940 KB Output is correct
3 Correct 3 ms 14940 KB Output is correct
4 Correct 4 ms 14940 KB Output is correct
5 Correct 4 ms 15004 KB Output is correct
6 Correct 4 ms 14940 KB Output is correct
7 Correct 3 ms 14940 KB Output is correct
8 Correct 4 ms 14940 KB Output is correct
9 Correct 3 ms 14940 KB Output is correct
10 Correct 3 ms 15012 KB Output is correct
11 Correct 3 ms 14940 KB Output is correct
12 Correct 3 ms 14940 KB Output is correct
13 Correct 4 ms 14940 KB Output is correct
14 Correct 3 ms 14956 KB Output is correct
15 Correct 3 ms 14936 KB Output is correct
16 Correct 3 ms 15016 KB Output is correct
17 Correct 3 ms 14940 KB Output is correct
18 Correct 3 ms 14936 KB Output is correct
19 Correct 3 ms 14940 KB Output is correct
20 Correct 3 ms 15004 KB Output is correct
21 Correct 3 ms 14952 KB Output is correct
22 Correct 3 ms 15004 KB Output is correct
23 Correct 3 ms 14936 KB Output is correct
24 Correct 3 ms 14956 KB Output is correct
25 Correct 3 ms 14940 KB Output is correct
26 Correct 4 ms 14940 KB Output is correct
27 Correct 4 ms 15076 KB Output is correct
28 Correct 4 ms 15192 KB Output is correct
29 Correct 4 ms 14940 KB Output is correct
30 Correct 4 ms 15092 KB Output is correct
31 Correct 3 ms 14940 KB Output is correct
32 Correct 4 ms 15284 KB Output is correct
33 Correct 3 ms 14940 KB Output is correct
34 Correct 5 ms 14940 KB Output is correct
35 Correct 5 ms 14940 KB Output is correct
36 Correct 4 ms 14940 KB Output is correct
37 Correct 4 ms 15016 KB Output is correct
38 Correct 3 ms 14940 KB Output is correct
39 Correct 4 ms 14940 KB Output is correct
40 Correct 4 ms 14940 KB Output is correct
41 Correct 4 ms 14940 KB Output is correct
42 Correct 5 ms 14940 KB Output is correct
43 Correct 5 ms 15452 KB Output is correct
44 Correct 3 ms 14940 KB Output is correct
45 Correct 4 ms 15196 KB Output is correct
46 Correct 4 ms 15124 KB Output is correct
47 Correct 3 ms 15140 KB Output is correct
48 Correct 4 ms 15116 KB Output is correct
49 Correct 4 ms 14940 KB Output is correct
50 Correct 4 ms 15192 KB Output is correct
51 Correct 4 ms 14940 KB Output is correct
52 Correct 4 ms 14940 KB Output is correct
53 Correct 4 ms 14940 KB Output is correct
54 Correct 4 ms 14948 KB Output is correct

Subtask #3
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 14940 KB Output is correct
2 Correct 3 ms 14940 KB Output is correct
3 Correct 3 ms 14940 KB Output is correct
4 Correct 4 ms 14940 KB Output is correct
5 Correct 4 ms 15004 KB Output is correct
6 Correct 4 ms 14940 KB Output is correct
7 Correct 3 ms 14940 KB Output is correct
8 Correct 4 ms 14940 KB Output is correct
9 Correct 3 ms 14940 KB Output is correct
10 Correct 3 ms 15012 KB Output is correct
11 Correct 3 ms 14940 KB Output is correct
12 Correct 3 ms 14940 KB Output is correct
13 Correct 4 ms 14940 KB Output is correct
14 Correct 3 ms 14956 KB Output is correct
15 Correct 3 ms 14936 KB Output is correct
16 Correct 3 ms 15016 KB Output is correct
17 Correct 3 ms 14940 KB Output is correct
18 Correct 3 ms 14936 KB Output is correct
19 Correct 3 ms 14940 KB Output is correct
20 Correct 3 ms 15004 KB Output is correct
21 Correct 3 ms 14952 KB Output is correct
22 Correct 3 ms 15004 KB Output is correct
23 Correct 3 ms 14936 KB Output is correct
24 Correct 3 ms 14956 KB Output is correct
25 Correct 4 ms 14940 KB Output is correct
26 Correct 29 ms 19948 KB Output is correct
27 Correct 33 ms 19536 KB Output is correct
28 Correct 4 ms 14940 KB Output is correct
29 Correct 3 ms 14956 KB Output is correct
30 Correct 3 ms 14940 KB Output is correct
31 Correct 36 ms 19600 KB Output is correct
32 Correct 4 ms 15008 KB Output is correct
33 Correct 44 ms 29744 KB Output is correct
34 Correct 36 ms 19664 KB Output is correct
35 Correct 4 ms 14952 KB Output is correct
36 Correct 39 ms 20628 KB Output is correct
37 Correct 5 ms 14940 KB Output is correct
38 Correct 4 ms 14940 KB Output is correct
39 Correct 27 ms 19788 KB Output is correct
40 Correct 5 ms 15448 KB Output is correct
41 Correct 36 ms 19540 KB Output is correct
42 Correct 37 ms 22864 KB Output is correct
43 Correct 3 ms 14936 KB Output is correct
44 Correct 42 ms 30040 KB Output is correct
45 Correct 37 ms 24664 KB Output is correct
46 Correct 4 ms 14940 KB Output is correct
47 Correct 4 ms 14940 KB Output is correct

Subtask #4
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 26 ms 18384 KB Output is correct
2 Correct 35 ms 18796 KB Output is correct
3 Correct 4 ms 14936 KB Output is correct
4 Correct 5 ms 14936 KB Output is correct
5 Correct 3 ms 15192 KB Output is correct
6 Correct 3 ms 14940 KB Output is correct
7 Correct 4 ms 15108 KB Output is correct
8 Correct 41 ms 20072 KB Output is correct
9 Correct 4 ms 15024 KB Output is correct
10 Correct 34 ms 19548 KB Output is correct
11 Correct 3 ms 14936 KB Output is correct
12 Correct 36 ms 19540 KB Output is correct
13 Correct 38 ms 20100 KB Output is correct
14 Correct 36 ms 20304 KB Output is correct
15 Correct 27 ms 19792 KB Output is correct
16 Correct 4 ms 15136 KB Output is correct
17 Correct 4 ms 14940 KB Output is correct
18 Correct 36 ms 20592 KB Output is correct
19 Correct 47 ms 25696 KB Output is correct
20 Correct 4 ms 14940 KB Output is correct
21 Correct 3 ms 14940 KB Output is correct
22 Correct 30 ms 20176 KB Output is correct
23 Correct 4 ms 14952 KB Output is correct
24 Correct 38 ms 19796 KB Output is correct
25 Correct 42 ms 23888 KB Output is correct
26 Correct 4 ms 14940 KB Output is correct
27 Correct 4 ms 15196 KB Output is correct
28 Correct 4 ms 15116 KB Output is correct
29 Correct 5 ms 15020 KB Output is correct
30 Correct 4 ms 14940 KB Output is correct

Subtask #5
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 14940 KB Output is correct
2 Correct 3 ms 14940 KB Output is correct
3 Correct 3 ms 14940 KB Output is correct
4 Correct 4 ms 14940 KB Output is correct
5 Correct 4 ms 15004 KB Output is correct
6 Correct 4 ms 14940 KB Output is correct
7 Correct 3 ms 14940 KB Output is correct
8 Correct 4 ms 14940 KB Output is correct
9 Correct 3 ms 14940 KB Output is correct
10 Correct 3 ms 15012 KB Output is correct
11 Correct 3 ms 14940 KB Output is correct
12 Correct 3 ms 14940 KB Output is correct
13 Correct 4 ms 14940 KB Output is correct
14 Correct 3 ms 14956 KB Output is correct
15 Correct 3 ms 14936 KB Output is correct
16 Correct 3 ms 15016 KB Output is correct
17 Correct 3 ms 14940 KB Output is correct
18 Correct 3 ms 14936 KB Output is correct
19 Correct 3 ms 14940 KB Output is correct
20 Correct 3 ms 15004 KB Output is correct
21 Correct 3 ms 14952 KB Output is correct
22 Correct 3 ms 15004 KB Output is correct
23 Correct 3 ms 14936 KB Output is correct
24 Correct 3 ms 14956 KB Output is correct
25 Correct 3 ms 14940 KB Output is correct
26 Correct 4 ms 14940 KB Output is correct
27 Correct 4 ms 15076 KB Output is correct
28 Correct 4 ms 15192 KB Output is correct
29 Correct 4 ms 14940 KB Output is correct
30 Correct 4 ms 15092 KB Output is correct
31 Correct 3 ms 14940 KB Output is correct
32 Correct 4 ms 15284 KB Output is correct
33 Correct 3 ms 14940 KB Output is correct
34 Correct 5 ms 14940 KB Output is correct
35 Correct 5 ms 14940 KB Output is correct
36 Correct 4 ms 14940 KB Output is correct
37 Correct 4 ms 15016 KB Output is correct
38 Correct 3 ms 14940 KB Output is correct
39 Correct 4 ms 14940 KB Output is correct
40 Correct 4 ms 14940 KB Output is correct
41 Correct 4 ms 14940 KB Output is correct
42 Correct 5 ms 14940 KB Output is correct
43 Correct 5 ms 15452 KB Output is correct
44 Correct 3 ms 14940 KB Output is correct
45 Correct 4 ms 15196 KB Output is correct
46 Correct 4 ms 15124 KB Output is correct
47 Correct 3 ms 15140 KB Output is correct
48 Correct 4 ms 15116 KB Output is correct
49 Correct 4 ms 14940 KB Output is correct
50 Correct 4 ms 15192 KB Output is correct
51 Correct 4 ms 14940 KB Output is correct
52 Correct 4 ms 14940 KB Output is correct
53 Correct 4 ms 14940 KB Output is correct
54 Correct 4 ms 14948 KB Output is correct
55 Correct 4 ms 14940 KB Output is correct
56 Correct 29 ms 19948 KB Output is correct
57 Correct 33 ms 19536 KB Output is correct
58 Correct 4 ms 14940 KB Output is correct
59 Correct 3 ms 14956 KB Output is correct
60 Correct 3 ms 14940 KB Output is correct
61 Correct 36 ms 19600 KB Output is correct
62 Correct 4 ms 15008 KB Output is correct
63 Correct 44 ms 29744 KB Output is correct
64 Correct 36 ms 19664 KB Output is correct
65 Correct 4 ms 14952 KB Output is correct
66 Correct 39 ms 20628 KB Output is correct
67 Correct 5 ms 14940 KB Output is correct
68 Correct 4 ms 14940 KB Output is correct
69 Correct 27 ms 19788 KB Output is correct
70 Correct 5 ms 15448 KB Output is correct
71 Correct 36 ms 19540 KB Output is correct
72 Correct 37 ms 22864 KB Output is correct
73 Correct 3 ms 14936 KB Output is correct
74 Correct 42 ms 30040 KB Output is correct
75 Correct 37 ms 24664 KB Output is correct
76 Correct 4 ms 14940 KB Output is correct
77 Correct 4 ms 14940 KB Output is correct
78 Correct 26 ms 18384 KB Output is correct
79 Correct 35 ms 18796 KB Output is correct
80 Correct 4 ms 14936 KB Output is correct
81 Correct 5 ms 14936 KB Output is correct
82 Correct 3 ms 15192 KB Output is correct
83 Correct 3 ms 14940 KB Output is correct
84 Correct 4 ms 15108 KB Output is correct
85 Correct 41 ms 20072 KB Output is correct
86 Correct 4 ms 15024 KB Output is correct
87 Correct 34 ms 19548 KB Output is correct
88 Correct 3 ms 14936 KB Output is correct
89 Correct 36 ms 19540 KB Output is correct
90 Correct 38 ms 20100 KB Output is correct
91 Correct 36 ms 20304 KB Output is correct
92 Correct 27 ms 19792 KB Output is correct
93 Correct 4 ms 15136 KB Output is correct
94 Correct 4 ms 14940 KB Output is correct
95 Correct 36 ms 20592 KB Output is correct
96 Correct 47 ms 25696 KB Output is correct
97 Correct 4 ms 14940 KB Output is correct
98 Correct 3 ms 14940 KB Output is correct
99 Correct 30 ms 20176 KB Output is correct
100 Correct 4 ms 14952 KB Output is correct
101 Correct 38 ms 19796 KB Output is correct
102 Correct 42 ms 23888 KB Output is correct
103 Correct 4 ms 14940 KB Output is correct
104 Correct 4 ms 15196 KB Output is correct
105 Correct 4 ms 15116 KB Output is correct
106 Correct 5 ms 15020 KB Output is correct
107 Correct 4 ms 14940 KB Output is correct
108 Correct 204 ms 44112 KB Output is correct
109 Correct 495 ms 65472 KB Output is correct
110 Correct 496 ms 80928 KB Output is correct
111 Correct 535 ms 76672 KB Output is correct
112 Correct 422 ms 63056 KB Output is correct
113 Correct 221 ms 45364 KB Output is correct
114 Correct 311 ms 39676 KB Output is correct
115 Correct 335 ms 39828 KB Output is correct
116 Correct 356 ms 42132 KB Output is correct
117 Correct 385 ms 44184 KB Output is correct
118 Correct 349 ms 40016 KB Output is correct
119 Correct 368 ms 44152 KB Output is correct
120 Correct 477 ms 64140 KB Output is correct
121 Correct 390 ms 44188 KB Output is correct
122 Correct 350 ms 43304 KB Output is correct
123 Correct 227 ms 45504 KB Output is correct
124 Correct 477 ms 43828 KB Output is correct