oj.uz

Submission #300413

# Submission time Handle Problem Language Result Execution time Memory
300413 2020-09-17T06:59:49 Z knon0501 None (KOI18_family) C++14
44 / 100
 3000 ms 22776 KB 
#include <bits/stdc++.h>
using namespace std;
const int MX=3e5+5;
int n,k;
int N1,N2;
vector<int> v[MX];
struct Tree{

vector<int> a[MX];
int dth[MX];
int p[MX][20];
int r;
int lca(int v,int u){
    int i,j;

    if(dth[v]>dth[u])swap(u,v);
    for(i=19 ; i>=0 ; i--)if(dth[u]-dth[v]>=(1<<i))u=p[u][i];
    if(u==v)return v;
    for(i=19 ; i>=0 ; i--){
        if(p[u][i]!=p[v][i]){
            u=p[u][i];
            v=p[v][i];
        }
    }
    return p[v][0];
}
void dfs(int v){
    for(auto u: a[v]){
        if(dth[u])continue;
        p[u][0]=v;
        dth[u]=dth[v]+1;
        dfs(u);
    }
}

void build(){
    dth[r]=1;
    dfs(r);
    for(int i=1 ; i<20 ; i++){
        for(int j=1 ; j<=n ; j++){
            p[j][i]=p[p[j][i-1]][i-1];
        }
    }
}

void add(int u,int v){
    a[u].push_back(v);
}
};

Tree T1,T2;
int main(){
    cin.tie(0);
    ios_base::sync_with_stdio(0);
    cin>>N1>>N2>>k;
    n=max(N1,N2);
    int i,j;

    for(i=1 ; i<=N1 ; i++){
        int p;
        cin>>p;
        if(p){
            T1.add(p,i);
        }
        else
            T1.r=i;
    }
    for(i=1 ; i<=N2  ; i++){
        int p;
        cin>>p;
        if(p){
            T2.add(p,i);
        }
        else
            T2.r=i;
    }
    T1.build();
    T2.build();
    for(i=1 ; i<=k ; i++){
        int mx=0;
        for(j=1 ; j<=n ; j++)
            v[j].clear();
        for(j=1 ; j<=k ; j++){
            v[T1.dth[T1.lca(i,j)]].push_back(j);
        }

        int l=0;

        for(j=1 ; j<=n ; j++){
            for(auto x: v[j-1]){
                mx=max(mx,T2.dth[T2.lca(i,x)]);
                l++;
            }
            for(auto x: v[j]){
            if(mx>T2.dth[T2.lca(i,x)]){
                cout<<"NO";
                return 0;
            }
            }
        }

    }
    cout<<"YES";
    return 0;
}

Compilation message

family.cpp: In member function 'int Tree::lca(int, int)':
family.cpp:14:11: warning: unused variable 'j' [-Wunused-variable]
   14 |     int i,j;
      |           ^

Subtask #1
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 15 ms 21504 KB Output is correct
2 Correct 15 ms 21504 KB Output is correct
3 Correct 15 ms 21536 KB Output is correct
4 Correct 15 ms 21504 KB Output is correct
5 Correct 15 ms 21504 KB Output is correct
6 Correct 16 ms 21504 KB Output is correct
7 Correct 16 ms 21568 KB Output is correct
8 Correct 15 ms 21504 KB Output is correct
9 Correct 17 ms 21504 KB Output is correct
10 Correct 15 ms 21504 KB Output is correct
11 Correct 15 ms 21504 KB Output is correct
12 Correct 15 ms 21504 KB Output is correct
13 Correct 15 ms 21504 KB Output is correct
14 Correct 18 ms 21536 KB Output is correct
15 Correct 17 ms 21632 KB Output is correct
16 Correct 16 ms 21664 KB Output is correct
17 Correct 15 ms 21536 KB Output is correct
18 Correct 16 ms 21536 KB Output is correct
19 Correct 15 ms 21504 KB Output is correct
20 Correct 15 ms 21504 KB Output is correct
21 Correct 15 ms 21536 KB Output is correct
22 Correct 16 ms 21504 KB Output is correct
23 Correct 16 ms 21504 KB Output is correct
24 Correct 16 ms 21504 KB Output is correct
25 Correct 15 ms 21504 KB Output is correct
26 Correct 16 ms 21504 KB Output is correct
27 Correct 15 ms 21504 KB Output is correct
28 Correct 15 ms 21504 KB Output is correct
29 Correct 16 ms 21504 KB Output is correct
30 Correct 15 ms 21504 KB Output is correct

Subtask #2
27.0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 15 ms 21504 KB Output is correct
2 Correct 15 ms 21504 KB Output is correct
3 Correct 15 ms 21536 KB Output is correct
4 Correct 15 ms 21504 KB Output is correct
5 Correct 15 ms 21504 KB Output is correct
6 Correct 16 ms 21504 KB Output is correct
7 Correct 16 ms 21568 KB Output is correct
8 Correct 15 ms 21504 KB Output is correct
9 Correct 17 ms 21504 KB Output is correct
10 Correct 15 ms 21504 KB Output is correct
11 Correct 15 ms 21504 KB Output is correct
12 Correct 15 ms 21504 KB Output is correct
13 Correct 15 ms 21504 KB Output is correct
14 Correct 18 ms 21536 KB Output is correct
15 Correct 17 ms 21632 KB Output is correct
16 Correct 16 ms 21664 KB Output is correct
17 Correct 15 ms 21536 KB Output is correct
18 Correct 16 ms 21536 KB Output is correct
19 Correct 15 ms 21504 KB Output is correct
20 Correct 15 ms 21504 KB Output is correct
21 Correct 15 ms 21536 KB Output is correct
22 Correct 16 ms 21504 KB Output is correct
23 Correct 16 ms 21504 KB Output is correct
24 Correct 16 ms 21504 KB Output is correct
25 Correct 15 ms 21504 KB Output is correct
26 Correct 16 ms 21504 KB Output is correct
27 Correct 15 ms 21504 KB Output is correct
28 Correct 15 ms 21504 KB Output is correct
29 Correct 16 ms 21504 KB Output is correct
30 Correct 15 ms 21504 KB Output is correct
31 Correct 15 ms 21480 KB Output is correct
32 Correct 15 ms 21504 KB Output is correct
33 Correct 17 ms 21504 KB Output is correct
34 Correct 15 ms 21692 KB Output is correct
35 Correct 15 ms 21504 KB Output is correct
36 Correct 21 ms 21504 KB Output is correct
37 Correct 15 ms 21504 KB Output is correct
38 Correct 22 ms 21608 KB Output is correct
39 Correct 19 ms 21504 KB Output is correct
40 Correct 16 ms 21504 KB Output is correct
41 Correct 15 ms 21504 KB Output is correct
42 Correct 18 ms 21504 KB Output is correct
43 Correct 15 ms 21504 KB Output is correct
44 Correct 17 ms 21504 KB Output is correct
45 Correct 17 ms 21496 KB Output is correct
46 Correct 16 ms 21524 KB Output is correct
47 Correct 15 ms 21504 KB Output is correct
48 Correct 17 ms 21540 KB Output is correct
49 Correct 16 ms 21504 KB Output is correct
50 Correct 15 ms 21504 KB Output is correct

Subtask #3
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 15 ms 21504 KB Output is correct
2 Correct 15 ms 21504 KB Output is correct
3 Correct 15 ms 21536 KB Output is correct
4 Correct 15 ms 21504 KB Output is correct
5 Correct 15 ms 21504 KB Output is correct
6 Correct 16 ms 21504 KB Output is correct
7 Correct 16 ms 21568 KB Output is correct
8 Correct 15 ms 21504 KB Output is correct
9 Correct 17 ms 21504 KB Output is correct
10 Correct 15 ms 21504 KB Output is correct
11 Correct 15 ms 21504 KB Output is correct
12 Correct 15 ms 21504 KB Output is correct
13 Correct 15 ms 21504 KB Output is correct
14 Correct 18 ms 21536 KB Output is correct
15 Correct 17 ms 21632 KB Output is correct
16 Correct 16 ms 21664 KB Output is correct
17 Correct 15 ms 21536 KB Output is correct
18 Correct 16 ms 21536 KB Output is correct
19 Correct 15 ms 21504 KB Output is correct
20 Correct 15 ms 21504 KB Output is correct
21 Correct 15 ms 21536 KB Output is correct
22 Correct 16 ms 21504 KB Output is correct
23 Correct 16 ms 21504 KB Output is correct
24 Correct 16 ms 21504 KB Output is correct
25 Correct 15 ms 21504 KB Output is correct
26 Correct 16 ms 21504 KB Output is correct
27 Correct 15 ms 21504 KB Output is correct
28 Correct 15 ms 21504 KB Output is correct
29 Correct 16 ms 21504 KB Output is correct
30 Correct 15 ms 21504 KB Output is correct
31 Correct 15 ms 21480 KB Output is correct
32 Correct 15 ms 21504 KB Output is correct
33 Correct 17 ms 21504 KB Output is correct
34 Correct 15 ms 21692 KB Output is correct
35 Correct 15 ms 21504 KB Output is correct
36 Correct 21 ms 21504 KB Output is correct
37 Correct 15 ms 21504 KB Output is correct
38 Correct 22 ms 21608 KB Output is correct
39 Correct 19 ms 21504 KB Output is correct
40 Correct 16 ms 21504 KB Output is correct
41 Correct 15 ms 21504 KB Output is correct
42 Correct 18 ms 21504 KB Output is correct
43 Correct 15 ms 21504 KB Output is correct
44 Correct 17 ms 21504 KB Output is correct
45 Correct 17 ms 21496 KB Output is correct
46 Correct 16 ms 21524 KB Output is correct
47 Correct 15 ms 21504 KB Output is correct
48 Correct 17 ms 21540 KB Output is correct
49 Correct 16 ms 21504 KB Output is correct
50 Correct 15 ms 21504 KB Output is correct
51 Execution timed out 3050 ms 22776 KB Time limit exceeded
52 Halted 0 ms 0 KB -

Subtask #4
0 / 41.0

# Verdict Execution time Memory Grader output
1 Correct 15 ms 21504 KB Output is correct
2 Correct 15 ms 21504 KB Output is correct
3 Correct 15 ms 21536 KB Output is correct
4 Correct 15 ms 21504 KB Output is correct
5 Correct 15 ms 21504 KB Output is correct
6 Correct 16 ms 21504 KB Output is correct
7 Correct 16 ms 21568 KB Output is correct
8 Correct 15 ms 21504 KB Output is correct
9 Correct 17 ms 21504 KB Output is correct
10 Correct 15 ms 21504 KB Output is correct
11 Correct 15 ms 21504 KB Output is correct
12 Correct 15 ms 21504 KB Output is correct
13 Correct 15 ms 21504 KB Output is correct
14 Correct 18 ms 21536 KB Output is correct
15 Correct 17 ms 21632 KB Output is correct
16 Correct 16 ms 21664 KB Output is correct
17 Correct 15 ms 21536 KB Output is correct
18 Correct 16 ms 21536 KB Output is correct
19 Correct 15 ms 21504 KB Output is correct
20 Correct 15 ms 21504 KB Output is correct
21 Correct 15 ms 21536 KB Output is correct
22 Correct 16 ms 21504 KB Output is correct
23 Correct 16 ms 21504 KB Output is correct
24 Correct 16 ms 21504 KB Output is correct
25 Correct 15 ms 21504 KB Output is correct
26 Correct 16 ms 21504 KB Output is correct
27 Correct 15 ms 21504 KB Output is correct
28 Correct 15 ms 21504 KB Output is correct
29 Correct 16 ms 21504 KB Output is correct
30 Correct 15 ms 21504 KB Output is correct
31 Correct 15 ms 21480 KB Output is correct
32 Correct 15 ms 21504 KB Output is correct
33 Correct 17 ms 21504 KB Output is correct
34 Correct 15 ms 21692 KB Output is correct
35 Correct 15 ms 21504 KB Output is correct
36 Correct 21 ms 21504 KB Output is correct
37 Correct 15 ms 21504 KB Output is correct
38 Correct 22 ms 21608 KB Output is correct
39 Correct 19 ms 21504 KB Output is correct
40 Correct 16 ms 21504 KB Output is correct
41 Correct 15 ms 21504 KB Output is correct
42 Correct 18 ms 21504 KB Output is correct
43 Correct 15 ms 21504 KB Output is correct
44 Correct 17 ms 21504 KB Output is correct
45 Correct 17 ms 21496 KB Output is correct
46 Correct 16 ms 21524 KB Output is correct
47 Correct 15 ms 21504 KB Output is correct
48 Correct 17 ms 21540 KB Output is correct
49 Correct 16 ms 21504 KB Output is correct
50 Correct 15 ms 21504 KB Output is correct
51 Execution timed out 3050 ms 22776 KB Time limit exceeded
52 Halted 0 ms 0 KB -