oj.uz

Submission #938539

# Submission time Handle Problem Language Result Execution time Memory
938539 2024-03-05T09:42:44 Z groshi Mergers (JOI19_mergers) C++17
100 / 100
 964 ms 204708 KB 
#include<bits/stdc++.h>
using namespace std;
#define int long long
struct wi{
    vector<int> Q;
    int kolor=0;
    int zle=0;
    int gore=0;
    int suma=0;
}*w;
int ile[600000];
map<int,int> mapka[600000];
int wynik=0;
int wszyscy=0;
void dfs(int x,int ojc)
{
    mapka[x][w[x].kolor]++;
    if(ile[w[x].kolor]==1)
        mapka[x].erase(w[x].kolor);
    for(int i=0;i<w[x].Q.size();i++)
    {
        int pom=w[x].Q[i];
        if(pom==ojc)
            continue;
        dfs(pom,x);
        if(mapka[pom].size()>mapka[x].size())
            swap(mapka[pom],mapka[x]);
        for(auto it=mapka[pom].begin();it!=mapka[pom].end();it++)
        {
            mapka[x][it->first]+=it->second;
            if(mapka[x][it->first]==ile[it->first])
                mapka[x].erase(it->first);
        }
    }
    if(mapka[x].size()==0 && x!=1)
        w[x].zle=1,w[ojc].zle=1;
}
void dfs2(int x,int ojc)
{
    w[x].suma+=w[x].zle;
    int teraz=0;
    for(int i=0;i<w[x].Q.size();i++)
    {
        int pom=w[x].Q[i];
        if(pom==ojc)
            continue;
        dfs2(pom,x);
        w[x].suma+=w[pom].suma;
        if(w[pom].suma>=1)
            teraz++;
    }
    //cout<<x<<": "<<w[x].suma<<" "<<wszyscy<<" "<<teraz<<"\n";
    if(w[x].suma==1 && w[x].zle==1)
        wynik++;
    else if(w[x].suma==wszyscy && teraz==1 && w[x].zle==1)
        wynik++;
}
int32_t main()
{
    cin.tie(0);
    cout.tie(0);
    ios_base::sync_with_stdio(0);
    int n,k,x,y;
    cin>>n>>k;
    w=new wi[n+3];
    for(int i=1;i<n;i++)
    {
        cin>>x>>y;
        w[x].Q.push_back(y);
        w[y].Q.push_back(x);
    }
    for(int i=1;i<=n;i++)
    {
        cin>>x;
        ile[x]++;
        w[i].kolor=x;
    }
    dfs(1,0);
    for(int i=1;i<=n;i++)
        wszyscy+=w[i].zle;
    dfs2(1,0);
    //cout<<wynik<<"\n";
    cout<<(wynik+1)/2;
    return 0;
}

Compilation message

mergers.cpp: In function 'void dfs(long long int, long long int)':
mergers.cpp:20:18: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   20 |     for(int i=0;i<w[x].Q.size();i++)
      |                 ~^~~~~~~~~~~~~~
mergers.cpp: In function 'void dfs2(long long int, long long int)':
mergers.cpp:42:18: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   42 |     for(int i=0;i<w[x].Q.size();i++)
      |                 ~^~~~~~~~~~~~~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 29272 KB Output is correct
2 Correct 7 ms 29276 KB Output is correct
3 Correct 6 ms 29276 KB Output is correct
4 Correct 6 ms 29276 KB Output is correct
5 Correct 6 ms 29276 KB Output is correct
6 Correct 7 ms 29272 KB Output is correct
7 Correct 6 ms 29276 KB Output is correct
8 Correct 6 ms 29328 KB Output is correct
9 Correct 6 ms 29360 KB Output is correct
10 Correct 6 ms 29276 KB Output is correct
11 Correct 6 ms 29276 KB Output is correct
12 Correct 6 ms 29276 KB Output is correct
13 Correct 6 ms 29276 KB Output is correct
14 Correct 8 ms 29532 KB Output is correct
15 Correct 6 ms 29276 KB Output is correct
16 Correct 6 ms 29276 KB Output is correct
17 Correct 6 ms 29276 KB Output is correct
18 Correct 6 ms 29276 KB Output is correct
19 Correct 6 ms 29364 KB Output is correct
20 Correct 6 ms 29276 KB Output is correct
21 Correct 6 ms 29272 KB Output is correct
22 Correct 6 ms 29276 KB Output is correct
23 Correct 6 ms 29276 KB Output is correct
24 Correct 7 ms 29276 KB Output is correct

Subtask #2
24.0 / 24.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 29272 KB Output is correct
2 Correct 7 ms 29276 KB Output is correct
3 Correct 6 ms 29276 KB Output is correct
4 Correct 6 ms 29276 KB Output is correct
5 Correct 6 ms 29276 KB Output is correct
6 Correct 7 ms 29272 KB Output is correct
7 Correct 6 ms 29276 KB Output is correct
8 Correct 6 ms 29328 KB Output is correct
9 Correct 6 ms 29360 KB Output is correct
10 Correct 6 ms 29276 KB Output is correct
11 Correct 6 ms 29276 KB Output is correct
12 Correct 6 ms 29276 KB Output is correct
13 Correct 6 ms 29276 KB Output is correct
14 Correct 8 ms 29532 KB Output is correct
15 Correct 6 ms 29276 KB Output is correct
16 Correct 6 ms 29276 KB Output is correct
17 Correct 6 ms 29276 KB Output is correct
18 Correct 6 ms 29276 KB Output is correct
19 Correct 6 ms 29364 KB Output is correct
20 Correct 6 ms 29276 KB Output is correct
21 Correct 6 ms 29272 KB Output is correct
22 Correct 6 ms 29276 KB Output is correct
23 Correct 6 ms 29276 KB Output is correct
24 Correct 7 ms 29276 KB Output is correct
25 Correct 7 ms 29276 KB Output is correct
26 Correct 9 ms 29840 KB Output is correct
27 Correct 8 ms 29788 KB Output is correct
28 Correct 7 ms 29660 KB Output is correct
29 Correct 7 ms 29532 KB Output is correct
30 Correct 9 ms 30044 KB Output is correct
31 Correct 6 ms 29276 KB Output is correct
32 Correct 10 ms 29788 KB Output is correct
33 Correct 6 ms 29280 KB Output is correct
34 Correct 7 ms 29788 KB Output is correct
35 Correct 9 ms 29636 KB Output is correct
36 Correct 8 ms 29888 KB Output is correct
37 Correct 8 ms 30044 KB Output is correct
38 Correct 7 ms 29276 KB Output is correct
39 Correct 9 ms 30044 KB Output is correct
40 Correct 7 ms 29788 KB Output is correct
41 Correct 7 ms 29880 KB Output is correct
42 Correct 8 ms 29788 KB Output is correct
43 Correct 8 ms 30040 KB Output is correct
44 Correct 7 ms 29276 KB Output is correct
45 Correct 7 ms 29532 KB Output is correct
46 Correct 8 ms 29788 KB Output is correct
47 Correct 6 ms 29272 KB Output is correct
48 Correct 8 ms 29788 KB Output is correct
49 Correct 8 ms 29532 KB Output is correct
50 Correct 7 ms 29788 KB Output is correct
51 Correct 8 ms 29788 KB Output is correct
52 Correct 8 ms 29788 KB Output is correct
53 Correct 8 ms 29788 KB Output is correct
54 Correct 8 ms 30140 KB Output is correct

Subtask #3
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 29272 KB Output is correct
2 Correct 7 ms 29276 KB Output is correct
3 Correct 6 ms 29276 KB Output is correct
4 Correct 6 ms 29276 KB Output is correct
5 Correct 6 ms 29276 KB Output is correct
6 Correct 7 ms 29272 KB Output is correct
7 Correct 6 ms 29276 KB Output is correct
8 Correct 6 ms 29328 KB Output is correct
9 Correct 6 ms 29360 KB Output is correct
10 Correct 6 ms 29276 KB Output is correct
11 Correct 6 ms 29276 KB Output is correct
12 Correct 6 ms 29276 KB Output is correct
13 Correct 6 ms 29276 KB Output is correct
14 Correct 8 ms 29532 KB Output is correct
15 Correct 6 ms 29276 KB Output is correct
16 Correct 6 ms 29276 KB Output is correct
17 Correct 6 ms 29276 KB Output is correct
18 Correct 6 ms 29276 KB Output is correct
19 Correct 6 ms 29364 KB Output is correct
20 Correct 6 ms 29276 KB Output is correct
21 Correct 6 ms 29272 KB Output is correct
22 Correct 6 ms 29276 KB Output is correct
23 Correct 6 ms 29276 KB Output is correct
24 Correct 7 ms 29276 KB Output is correct
25 Correct 6 ms 29276 KB Output is correct
26 Correct 67 ms 46280 KB Output is correct
27 Correct 97 ms 54988 KB Output is correct
28 Correct 8 ms 29868 KB Output is correct
29 Correct 6 ms 29308 KB Output is correct
30 Correct 6 ms 29276 KB Output is correct
31 Correct 62 ms 46164 KB Output is correct
32 Correct 9 ms 29784 KB Output is correct
33 Correct 108 ms 57152 KB Output is correct
34 Correct 81 ms 53332 KB Output is correct
35 Correct 8 ms 29820 KB Output is correct
36 Correct 73 ms 46792 KB Output is correct
37 Correct 7 ms 29784 KB Output is correct
38 Correct 7 ms 29820 KB Output is correct
39 Correct 61 ms 46312 KB Output is correct
40 Correct 7 ms 30040 KB Output is correct
41 Correct 63 ms 46164 KB Output is correct
42 Correct 91 ms 49492 KB Output is correct
43 Correct 6 ms 29272 KB Output is correct
44 Correct 96 ms 57696 KB Output is correct
45 Correct 83 ms 54352 KB Output is correct
46 Correct 7 ms 29788 KB Output is correct
47 Correct 8 ms 30044 KB Output is correct

Subtask #4
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 56 ms 46280 KB Output is correct
2 Correct 42 ms 42448 KB Output is correct
3 Correct 7 ms 29532 KB Output is correct
4 Correct 8 ms 29812 KB Output is correct
5 Correct 6 ms 29276 KB Output is correct
6 Correct 7 ms 29276 KB Output is correct
7 Correct 7 ms 29892 KB Output is correct
8 Correct 86 ms 49488 KB Output is correct
9 Correct 8 ms 30040 KB Output is correct
10 Correct 71 ms 46164 KB Output is correct
11 Correct 6 ms 29276 KB Output is correct
12 Correct 63 ms 45652 KB Output is correct
13 Correct 71 ms 45176 KB Output is correct
14 Correct 57 ms 42324 KB Output is correct
15 Correct 52 ms 46400 KB Output is correct
16 Correct 8 ms 29788 KB Output is correct
17 Correct 6 ms 29360 KB Output is correct
18 Correct 56 ms 41860 KB Output is correct
19 Correct 85 ms 48208 KB Output is correct
20 Correct 8 ms 29784 KB Output is correct
21 Correct 6 ms 29276 KB Output is correct
22 Correct 84 ms 45352 KB Output is correct
23 Correct 8 ms 29788 KB Output is correct
24 Correct 74 ms 45292 KB Output is correct
25 Correct 88 ms 47216 KB Output is correct
26 Correct 10 ms 29788 KB Output is correct
27 Correct 7 ms 29784 KB Output is correct
28 Correct 7 ms 30040 KB Output is correct
29 Correct 7 ms 29788 KB Output is correct
30 Correct 8 ms 29784 KB Output is correct

Subtask #5
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 29272 KB Output is correct
2 Correct 7 ms 29276 KB Output is correct
3 Correct 6 ms 29276 KB Output is correct
4 Correct 6 ms 29276 KB Output is correct
5 Correct 6 ms 29276 KB Output is correct
6 Correct 7 ms 29272 KB Output is correct
7 Correct 6 ms 29276 KB Output is correct
8 Correct 6 ms 29328 KB Output is correct
9 Correct 6 ms 29360 KB Output is correct
10 Correct 6 ms 29276 KB Output is correct
11 Correct 6 ms 29276 KB Output is correct
12 Correct 6 ms 29276 KB Output is correct
13 Correct 6 ms 29276 KB Output is correct
14 Correct 8 ms 29532 KB Output is correct
15 Correct 6 ms 29276 KB Output is correct
16 Correct 6 ms 29276 KB Output is correct
17 Correct 6 ms 29276 KB Output is correct
18 Correct 6 ms 29276 KB Output is correct
19 Correct 6 ms 29364 KB Output is correct
20 Correct 6 ms 29276 KB Output is correct
21 Correct 6 ms 29272 KB Output is correct
22 Correct 6 ms 29276 KB Output is correct
23 Correct 6 ms 29276 KB Output is correct
24 Correct 7 ms 29276 KB Output is correct
25 Correct 7 ms 29276 KB Output is correct
26 Correct 9 ms 29840 KB Output is correct
27 Correct 8 ms 29788 KB Output is correct
28 Correct 7 ms 29660 KB Output is correct
29 Correct 7 ms 29532 KB Output is correct
30 Correct 9 ms 30044 KB Output is correct
31 Correct 6 ms 29276 KB Output is correct
32 Correct 10 ms 29788 KB Output is correct
33 Correct 6 ms 29280 KB Output is correct
34 Correct 7 ms 29788 KB Output is correct
35 Correct 9 ms 29636 KB Output is correct
36 Correct 8 ms 29888 KB Output is correct
37 Correct 8 ms 30044 KB Output is correct
38 Correct 7 ms 29276 KB Output is correct
39 Correct 9 ms 30044 KB Output is correct
40 Correct 7 ms 29788 KB Output is correct
41 Correct 7 ms 29880 KB Output is correct
42 Correct 8 ms 29788 KB Output is correct
43 Correct 8 ms 30040 KB Output is correct
44 Correct 7 ms 29276 KB Output is correct
45 Correct 7 ms 29532 KB Output is correct
46 Correct 8 ms 29788 KB Output is correct
47 Correct 6 ms 29272 KB Output is correct
48 Correct 8 ms 29788 KB Output is correct
49 Correct 8 ms 29532 KB Output is correct
50 Correct 7 ms 29788 KB Output is correct
51 Correct 8 ms 29788 KB Output is correct
52 Correct 8 ms 29788 KB Output is correct
53 Correct 8 ms 29788 KB Output is correct
54 Correct 8 ms 30140 KB Output is correct
55 Correct 6 ms 29276 KB Output is correct
56 Correct 67 ms 46280 KB Output is correct
57 Correct 97 ms 54988 KB Output is correct
58 Correct 8 ms 29868 KB Output is correct
59 Correct 6 ms 29308 KB Output is correct
60 Correct 6 ms 29276 KB Output is correct
61 Correct 62 ms 46164 KB Output is correct
62 Correct 9 ms 29784 KB Output is correct
63 Correct 108 ms 57152 KB Output is correct
64 Correct 81 ms 53332 KB Output is correct
65 Correct 8 ms 29820 KB Output is correct
66 Correct 73 ms 46792 KB Output is correct
67 Correct 7 ms 29784 KB Output is correct
68 Correct 7 ms 29820 KB Output is correct
69 Correct 61 ms 46312 KB Output is correct
70 Correct 7 ms 30040 KB Output is correct
71 Correct 63 ms 46164 KB Output is correct
72 Correct 91 ms 49492 KB Output is correct
73 Correct 6 ms 29272 KB Output is correct
74 Correct 96 ms 57696 KB Output is correct
75 Correct 83 ms 54352 KB Output is correct
76 Correct 7 ms 29788 KB Output is correct
77 Correct 8 ms 30044 KB Output is correct
78 Correct 56 ms 46280 KB Output is correct
79 Correct 42 ms 42448 KB Output is correct
80 Correct 7 ms 29532 KB Output is correct
81 Correct 8 ms 29812 KB Output is correct
82 Correct 6 ms 29276 KB Output is correct
83 Correct 7 ms 29276 KB Output is correct
84 Correct 7 ms 29892 KB Output is correct
85 Correct 86 ms 49488 KB Output is correct
86 Correct 8 ms 30040 KB Output is correct
87 Correct 71 ms 46164 KB Output is correct
88 Correct 6 ms 29276 KB Output is correct
89 Correct 63 ms 45652 KB Output is correct
90 Correct 71 ms 45176 KB Output is correct
91 Correct 57 ms 42324 KB Output is correct
92 Correct 52 ms 46400 KB Output is correct
93 Correct 8 ms 29788 KB Output is correct
94 Correct 6 ms 29360 KB Output is correct
95 Correct 56 ms 41860 KB Output is correct
96 Correct 85 ms 48208 KB Output is correct
97 Correct 8 ms 29784 KB Output is correct
98 Correct 6 ms 29276 KB Output is correct
99 Correct 84 ms 45352 KB Output is correct
100 Correct 8 ms 29788 KB Output is correct
101 Correct 74 ms 45292 KB Output is correct
102 Correct 88 ms 47216 KB Output is correct
103 Correct 10 ms 29788 KB Output is correct
104 Correct 7 ms 29784 KB Output is correct
105 Correct 7 ms 30040 KB Output is correct
106 Correct 7 ms 29788 KB Output is correct
107 Correct 8 ms 29784 KB Output is correct
108 Correct 647 ms 116632 KB Output is correct
109 Correct 669 ms 140996 KB Output is correct
110 Correct 752 ms 159056 KB Output is correct
111 Correct 634 ms 123092 KB Output is correct
112 Correct 613 ms 113488 KB Output is correct
113 Correct 388 ms 95260 KB Output is correct
114 Correct 609 ms 114592 KB Output is correct
115 Correct 532 ms 114404 KB Output is correct
116 Correct 830 ms 194700 KB Output is correct
117 Correct 490 ms 88624 KB Output is correct
118 Correct 506 ms 113536 KB Output is correct
119 Correct 504 ms 88488 KB Output is correct
120 Correct 615 ms 114588 KB Output is correct
121 Correct 512 ms 88600 KB Output is correct
122 Correct 964 ms 204708 KB Output is correct
123 Correct 307 ms 89592 KB Output is correct
124 Correct 524 ms 85420 KB Output is correct