oj.uz

Submission #251223

# Submission time Handle Problem Language Result Execution time Memory
251223 2020-07-20T15:47:49 Z teee None (KOI18_family) C++14
100 / 100
 399 ms 75852 KB 
#include <iostream>
#include <vector>
#include <algorithm>
using namespace std;
int par[300'010];
int sz[300'010];
int kk;
int find(int n){
    return par[n]?par[n]=find(par[n]):n;
}
void merge(int a,int b){
    a=find(a);
    b=find(b);
    if(a^b){
        sz[a]+=sz[b];
        par[b]=a;
    }
}
vector<int> v[2][300'010];
vector<pair<int,pair<int,vector<int>>>> check;
pair<int,int> dfs(int n,int idx){
    if(n&&n<=kk){
        sz[n]=1;
        return {1,n};
    }
    int cnt=0;
    vector<int> t;
    int c=0;
    for(auto i:v[idx][n]){
        pair<int,int> k=dfs(i,idx);
        if(k.first>0) {
            cnt += k.first;
            t.push_back(k.second);
            c = k.second;
        }
    }
    if(cnt>1&&t.size()>1)check.push_back({cnt,{-t.size(),t}});
    return {cnt,c};
}
int main(){
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);
    cout.tie(nullptr);
    int n1,n2,a;
    cin>>n1>>n2>>kk;
    for(int i=1;i<=n1;i++){
        cin>>a;
        v[0][a].push_back(i);
    }
    for(int i=1;i<=n2;i++){
        cin>>a;
        v[1][a].push_back(i);
    }
    dfs(0,0);
    dfs(0,1);
    sort(check.begin(),check.end());
    for(const auto& i:check){
        vector<int> t=i.second.second;
        int cnt=i.first;
        int p=find(t[0]);
        for(auto j:t){
            merge(p,j);
        }
        if(sz[find(p)]!=cnt){
            cout<<"NO";return 0;
        }
    }
    cout<<"YES";
}

Subtask #1
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 14464 KB Output is correct
2 Correct 9 ms 14464 KB Output is correct
3 Correct 9 ms 14464 KB Output is correct
4 Correct 9 ms 14464 KB Output is correct
5 Correct 9 ms 14464 KB Output is correct
6 Correct 9 ms 14464 KB Output is correct
7 Correct 9 ms 14464 KB Output is correct
8 Correct 9 ms 14464 KB Output is correct
9 Correct 9 ms 14496 KB Output is correct
10 Correct 9 ms 14464 KB Output is correct
11 Correct 10 ms 14464 KB Output is correct
12 Correct 10 ms 14464 KB Output is correct
13 Correct 9 ms 14464 KB Output is correct
14 Correct 9 ms 14464 KB Output is correct
15 Correct 9 ms 14464 KB Output is correct
16 Correct 9 ms 14464 KB Output is correct
17 Correct 9 ms 14464 KB Output is correct
18 Correct 9 ms 14464 KB Output is correct
19 Correct 9 ms 14464 KB Output is correct
20 Correct 10 ms 14592 KB Output is correct
21 Correct 10 ms 14464 KB Output is correct
22 Correct 11 ms 14464 KB Output is correct
23 Correct 9 ms 14464 KB Output is correct
24 Correct 9 ms 14464 KB Output is correct
25 Correct 9 ms 14464 KB Output is correct
26 Correct 9 ms 14464 KB Output is correct
27 Correct 9 ms 14464 KB Output is correct
28 Correct 9 ms 14464 KB Output is correct
29 Correct 9 ms 14464 KB Output is correct
30 Correct 9 ms 14464 KB Output is correct

Subtask #2
27.0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 14464 KB Output is correct
2 Correct 9 ms 14464 KB Output is correct
3 Correct 9 ms 14464 KB Output is correct
4 Correct 9 ms 14464 KB Output is correct
5 Correct 9 ms 14464 KB Output is correct
6 Correct 9 ms 14464 KB Output is correct
7 Correct 9 ms 14464 KB Output is correct
8 Correct 9 ms 14464 KB Output is correct
9 Correct 9 ms 14496 KB Output is correct
10 Correct 9 ms 14464 KB Output is correct
11 Correct 10 ms 14464 KB Output is correct
12 Correct 10 ms 14464 KB Output is correct
13 Correct 9 ms 14464 KB Output is correct
14 Correct 9 ms 14464 KB Output is correct
15 Correct 9 ms 14464 KB Output is correct
16 Correct 9 ms 14464 KB Output is correct
17 Correct 9 ms 14464 KB Output is correct
18 Correct 9 ms 14464 KB Output is correct
19 Correct 9 ms 14464 KB Output is correct
20 Correct 10 ms 14592 KB Output is correct
21 Correct 10 ms 14464 KB Output is correct
22 Correct 11 ms 14464 KB Output is correct
23 Correct 9 ms 14464 KB Output is correct
24 Correct 9 ms 14464 KB Output is correct
25 Correct 9 ms 14464 KB Output is correct
26 Correct 9 ms 14464 KB Output is correct
27 Correct 9 ms 14464 KB Output is correct
28 Correct 9 ms 14464 KB Output is correct
29 Correct 9 ms 14464 KB Output is correct
30 Correct 9 ms 14464 KB Output is correct
31 Correct 8 ms 14464 KB Output is correct
32 Correct 9 ms 14464 KB Output is correct
33 Correct 9 ms 14464 KB Output is correct
34 Correct 9 ms 14464 KB Output is correct
35 Correct 12 ms 14464 KB Output is correct
36 Correct 9 ms 14464 KB Output is correct
37 Correct 8 ms 14464 KB Output is correct
38 Correct 12 ms 14464 KB Output is correct
39 Correct 9 ms 14464 KB Output is correct
40 Correct 9 ms 14464 KB Output is correct
41 Correct 9 ms 14464 KB Output is correct
42 Correct 9 ms 14464 KB Output is correct
43 Correct 10 ms 14464 KB Output is correct
44 Correct 9 ms 14464 KB Output is correct
45 Correct 9 ms 14464 KB Output is correct
46 Correct 12 ms 14464 KB Output is correct
47 Correct 9 ms 14464 KB Output is correct
48 Correct 12 ms 14464 KB Output is correct
49 Correct 9 ms 14464 KB Output is correct
50 Correct 9 ms 14464 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 14464 KB Output is correct
2 Correct 9 ms 14464 KB Output is correct
3 Correct 9 ms 14464 KB Output is correct
4 Correct 9 ms 14464 KB Output is correct
5 Correct 9 ms 14464 KB Output is correct
6 Correct 9 ms 14464 KB Output is correct
7 Correct 9 ms 14464 KB Output is correct
8 Correct 9 ms 14464 KB Output is correct
9 Correct 9 ms 14496 KB Output is correct
10 Correct 9 ms 14464 KB Output is correct
11 Correct 10 ms 14464 KB Output is correct
12 Correct 10 ms 14464 KB Output is correct
13 Correct 9 ms 14464 KB Output is correct
14 Correct 9 ms 14464 KB Output is correct
15 Correct 9 ms 14464 KB Output is correct
16 Correct 9 ms 14464 KB Output is correct
17 Correct 9 ms 14464 KB Output is correct
18 Correct 9 ms 14464 KB Output is correct
19 Correct 9 ms 14464 KB Output is correct
20 Correct 10 ms 14592 KB Output is correct
21 Correct 10 ms 14464 KB Output is correct
22 Correct 11 ms 14464 KB Output is correct
23 Correct 9 ms 14464 KB Output is correct
24 Correct 9 ms 14464 KB Output is correct
25 Correct 9 ms 14464 KB Output is correct
26 Correct 9 ms 14464 KB Output is correct
27 Correct 9 ms 14464 KB Output is correct
28 Correct 9 ms 14464 KB Output is correct
29 Correct 9 ms 14464 KB Output is correct
30 Correct 9 ms 14464 KB Output is correct
31 Correct 8 ms 14464 KB Output is correct
32 Correct 9 ms 14464 KB Output is correct
33 Correct 9 ms 14464 KB Output is correct
34 Correct 9 ms 14464 KB Output is correct
35 Correct 12 ms 14464 KB Output is correct
36 Correct 9 ms 14464 KB Output is correct
37 Correct 8 ms 14464 KB Output is correct
38 Correct 12 ms 14464 KB Output is correct
39 Correct 9 ms 14464 KB Output is correct
40 Correct 9 ms 14464 KB Output is correct
41 Correct 9 ms 14464 KB Output is correct
42 Correct 9 ms 14464 KB Output is correct
43 Correct 10 ms 14464 KB Output is correct
44 Correct 9 ms 14464 KB Output is correct
45 Correct 9 ms 14464 KB Output is correct
46 Correct 12 ms 14464 KB Output is correct
47 Correct 9 ms 14464 KB Output is correct
48 Correct 12 ms 14464 KB Output is correct
49 Correct 9 ms 14464 KB Output is correct
50 Correct 9 ms 14464 KB Output is correct
51 Correct 10 ms 14592 KB Output is correct
52 Correct 12 ms 14976 KB Output is correct
53 Correct 12 ms 14976 KB Output is correct
54 Correct 11 ms 14720 KB Output is correct
55 Correct 10 ms 14592 KB Output is correct
56 Correct 10 ms 14720 KB Output is correct
57 Correct 11 ms 14720 KB Output is correct
58 Correct 11 ms 14720 KB Output is correct
59 Correct 11 ms 14720 KB Output is correct
60 Correct 10 ms 14592 KB Output is correct
61 Correct 12 ms 15584 KB Output is correct
62 Correct 13 ms 15584 KB Output is correct
63 Correct 12 ms 14592 KB Output is correct
64 Correct 11 ms 14720 KB Output is correct
65 Correct 9 ms 14464 KB Output is correct
66 Correct 11 ms 14848 KB Output is correct
67 Correct 11 ms 14720 KB Output is correct
68 Correct 11 ms 14720 KB Output is correct
69 Correct 12 ms 14976 KB Output is correct
70 Correct 10 ms 14592 KB Output is correct

Subtask #4
41.0 / 41.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 14464 KB Output is correct
2 Correct 9 ms 14464 KB Output is correct
3 Correct 9 ms 14464 KB Output is correct
4 Correct 9 ms 14464 KB Output is correct
5 Correct 9 ms 14464 KB Output is correct
6 Correct 9 ms 14464 KB Output is correct
7 Correct 9 ms 14464 KB Output is correct
8 Correct 9 ms 14464 KB Output is correct
9 Correct 9 ms 14496 KB Output is correct
10 Correct 9 ms 14464 KB Output is correct
11 Correct 10 ms 14464 KB Output is correct
12 Correct 10 ms 14464 KB Output is correct
13 Correct 9 ms 14464 KB Output is correct
14 Correct 9 ms 14464 KB Output is correct
15 Correct 9 ms 14464 KB Output is correct
16 Correct 9 ms 14464 KB Output is correct
17 Correct 9 ms 14464 KB Output is correct
18 Correct 9 ms 14464 KB Output is correct
19 Correct 9 ms 14464 KB Output is correct
20 Correct 10 ms 14592 KB Output is correct
21 Correct 10 ms 14464 KB Output is correct
22 Correct 11 ms 14464 KB Output is correct
23 Correct 9 ms 14464 KB Output is correct
24 Correct 9 ms 14464 KB Output is correct
25 Correct 9 ms 14464 KB Output is correct
26 Correct 9 ms 14464 KB Output is correct
27 Correct 9 ms 14464 KB Output is correct
28 Correct 9 ms 14464 KB Output is correct
29 Correct 9 ms 14464 KB Output is correct
30 Correct 9 ms 14464 KB Output is correct
31 Correct 8 ms 14464 KB Output is correct
32 Correct 9 ms 14464 KB Output is correct
33 Correct 9 ms 14464 KB Output is correct
34 Correct 9 ms 14464 KB Output is correct
35 Correct 12 ms 14464 KB Output is correct
36 Correct 9 ms 14464 KB Output is correct
37 Correct 8 ms 14464 KB Output is correct
38 Correct 12 ms 14464 KB Output is correct
39 Correct 9 ms 14464 KB Output is correct
40 Correct 9 ms 14464 KB Output is correct
41 Correct 9 ms 14464 KB Output is correct
42 Correct 9 ms 14464 KB Output is correct
43 Correct 10 ms 14464 KB Output is correct
44 Correct 9 ms 14464 KB Output is correct
45 Correct 9 ms 14464 KB Output is correct
46 Correct 12 ms 14464 KB Output is correct
47 Correct 9 ms 14464 KB Output is correct
48 Correct 12 ms 14464 KB Output is correct
49 Correct 9 ms 14464 KB Output is correct
50 Correct 9 ms 14464 KB Output is correct
51 Correct 10 ms 14592 KB Output is correct
52 Correct 12 ms 14976 KB Output is correct
53 Correct 12 ms 14976 KB Output is correct
54 Correct 11 ms 14720 KB Output is correct
55 Correct 10 ms 14592 KB Output is correct
56 Correct 10 ms 14720 KB Output is correct
57 Correct 11 ms 14720 KB Output is correct
58 Correct 11 ms 14720 KB Output is correct
59 Correct 11 ms 14720 KB Output is correct
60 Correct 10 ms 14592 KB Output is correct
61 Correct 12 ms 15584 KB Output is correct
62 Correct 13 ms 15584 KB Output is correct
63 Correct 12 ms 14592 KB Output is correct
64 Correct 11 ms 14720 KB Output is correct
65 Correct 9 ms 14464 KB Output is correct
66 Correct 11 ms 14848 KB Output is correct
67 Correct 11 ms 14720 KB Output is correct
68 Correct 11 ms 14720 KB Output is correct
69 Correct 12 ms 14976 KB Output is correct
70 Correct 10 ms 14592 KB Output is correct
71 Correct 42 ms 18832 KB Output is correct
72 Correct 51 ms 18444 KB Output is correct
73 Correct 31 ms 16768 KB Output is correct
74 Correct 49 ms 21120 KB Output is correct
75 Correct 48 ms 19576 KB Output is correct
76 Correct 399 ms 58236 KB Output is correct
77 Correct 354 ms 35672 KB Output is correct
78 Correct 241 ms 31196 KB Output is correct
79 Correct 296 ms 46328 KB Output is correct
80 Correct 286 ms 34168 KB Output is correct
81 Correct 41 ms 18832 KB Output is correct
82 Correct 46 ms 18444 KB Output is correct
83 Correct 25 ms 16896 KB Output is correct
84 Correct 44 ms 20768 KB Output is correct
85 Correct 41 ms 19448 KB Output is correct
86 Correct 392 ms 75852 KB Output is correct
87 Correct 377 ms 75724 KB Output is correct
88 Correct 267 ms 31200 KB Output is correct
89 Correct 336 ms 44420 KB Output is correct
90 Correct 347 ms 34560 KB Output is correct