oj.uz

Submission #403625

# Submission time Handle Problem Language Result Execution time Memory
403625 2021-05-13T10:19:12 Z zaneyu None (KOI18_family) C++14
100 / 100
 300 ms 48892 KB 
/*input
7 8 4

7 7 6 6 0 5 5

6 7 7 8 0 5 5 5
*/
#include<bits/stdc++.h>
using namespace std;
#define REP(i,n) for(int i=0;i<n;i++)
#define REP1(i,n) for(int i=1;i<=n;i++)
#define ll long long
#define pii pair<int,int> 
#define pb push_back
#define ALL(x) x.begin(),x.end()
#define f first
#define s second
#define sz(x) (int)x.size()
const int maxn=3e5+5;
vector<int> v[maxn],v2[maxn];
int sz[maxn],sz2[maxn];
int id[maxn],id2[maxn];
int k;
void dfs(int u){
    if(u<k) id[u]=u,sz[u]=1;
    for(int x:v[u]){
        dfs(x);
        id[u]=id[x];
        sz[u]+=sz[x];
    }
}
void dfs2(int u){
    if(u<k) id2[u]=u,sz2[u]=1;
    for(int x:v2[u]){
        dfs2(x);
        id2[u]=id2[x];
        sz2[u]+=sz2[x];
    }  
}
int par[maxn],rank1[maxn];
int find(int u){
    if(par[u]==u) return u;
    return par[u]=find(par[u]);
}
void merge(int a,int b){
    a=find(a),b=find(b);
    if(a==b) return;
    par[a]=b;
    rank1[b]+=rank1[a];
}
int main(){
    ios::sync_with_stdio(false),cin.tie(0);
    int n,m;
    cin>>n>>m>>k;
    int r1,r2;
    REP(i,n){
        int x;
        cin>>x;
        --x;
        if(x!=-1) v[x].pb(i);
        else r1=i;
    }
    REP(i,m){
        int x;
        cin>>x;
        --x;
        if(x!=-1) v2[x].pb(i);
        else r2=i;
    }
    dfs(r1),dfs2(r2);
    vector<pii> va,vb;
    REP(i,n) if(sz(v[i])>1){
        va.pb({sz[i],i});
    }
    REP(i,m) if(sz(v2[i])>1){
        vb.pb({sz2[i],i});
    }
    sort(ALL(va)),sort(ALL(vb));
    int p=0;
    REP(i,k) par[i]=i,rank1[i]=1;
    REP(i,sz(va)){
        while(p<sz(vb) and vb[p].f<=va[i].f){
            for(auto x:v2[vb[p].s]) merge(id2[x],id2[vb[p].s]);
            ++p;
        }
        for(auto x:v[va[i].s]) merge(id[x],id[va[i].s]);
        if(rank1[find(id[va[i].s])]!=va[i].f){
            cout<<"NO\n";
            return 0;
        }
    }
    cout<<"YES\n";
}

Compilation message

family.cpp: In function 'int main()':
family.cpp:70:17: warning: 'r2' may be used uninitialized in this function [-Wmaybe-uninitialized]
   70 |     dfs(r1),dfs2(r2);
      |             ~~~~^~~~
family.cpp:70:8: warning: 'r1' may be used uninitialized in this function [-Wmaybe-uninitialized]
   70 |     dfs(r1),dfs2(r2);
      |     ~~~^~~~

Subtask #1
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 14412 KB Output is correct
2 Correct 8 ms 14412 KB Output is correct
3 Correct 8 ms 14412 KB Output is correct
4 Correct 8 ms 14412 KB Output is correct
5 Correct 8 ms 14412 KB Output is correct
6 Correct 8 ms 14412 KB Output is correct
7 Correct 8 ms 14412 KB Output is correct
8 Correct 8 ms 14412 KB Output is correct
9 Correct 8 ms 14412 KB Output is correct
10 Correct 8 ms 14412 KB Output is correct
11 Correct 8 ms 14412 KB Output is correct
12 Correct 8 ms 14440 KB Output is correct
13 Correct 8 ms 14412 KB Output is correct
14 Correct 8 ms 14452 KB Output is correct
15 Correct 10 ms 14456 KB Output is correct
16 Correct 9 ms 14412 KB Output is correct
17 Correct 8 ms 14412 KB Output is correct
18 Correct 8 ms 14412 KB Output is correct
19 Correct 8 ms 14412 KB Output is correct
20 Correct 8 ms 14412 KB Output is correct
21 Correct 9 ms 14412 KB Output is correct
22 Correct 9 ms 14412 KB Output is correct
23 Correct 9 ms 14436 KB Output is correct
24 Correct 9 ms 14420 KB Output is correct
25 Correct 9 ms 14364 KB Output is correct
26 Correct 9 ms 14388 KB Output is correct
27 Correct 9 ms 14412 KB Output is correct
28 Correct 9 ms 14412 KB Output is correct
29 Correct 9 ms 14412 KB Output is correct
30 Correct 9 ms 14412 KB Output is correct

Subtask #2
27.0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 14412 KB Output is correct
2 Correct 8 ms 14412 KB Output is correct
3 Correct 8 ms 14412 KB Output is correct
4 Correct 8 ms 14412 KB Output is correct
5 Correct 8 ms 14412 KB Output is correct
6 Correct 8 ms 14412 KB Output is correct
7 Correct 8 ms 14412 KB Output is correct
8 Correct 8 ms 14412 KB Output is correct
9 Correct 8 ms 14412 KB Output is correct
10 Correct 8 ms 14412 KB Output is correct
11 Correct 8 ms 14412 KB Output is correct
12 Correct 8 ms 14440 KB Output is correct
13 Correct 8 ms 14412 KB Output is correct
14 Correct 8 ms 14452 KB Output is correct
15 Correct 10 ms 14456 KB Output is correct
16 Correct 9 ms 14412 KB Output is correct
17 Correct 8 ms 14412 KB Output is correct
18 Correct 8 ms 14412 KB Output is correct
19 Correct 8 ms 14412 KB Output is correct
20 Correct 8 ms 14412 KB Output is correct
21 Correct 9 ms 14412 KB Output is correct
22 Correct 9 ms 14412 KB Output is correct
23 Correct 9 ms 14436 KB Output is correct
24 Correct 9 ms 14420 KB Output is correct
25 Correct 9 ms 14364 KB Output is correct
26 Correct 9 ms 14388 KB Output is correct
27 Correct 9 ms 14412 KB Output is correct
28 Correct 9 ms 14412 KB Output is correct
29 Correct 9 ms 14412 KB Output is correct
30 Correct 9 ms 14412 KB Output is correct
31 Correct 8 ms 14412 KB Output is correct
32 Correct 8 ms 14412 KB Output is correct
33 Correct 9 ms 14412 KB Output is correct
34 Correct 10 ms 14428 KB Output is correct
35 Correct 9 ms 14412 KB Output is correct
36 Correct 9 ms 14444 KB Output is correct
37 Correct 9 ms 14380 KB Output is correct
38 Correct 8 ms 14460 KB Output is correct
39 Correct 9 ms 14412 KB Output is correct
40 Correct 9 ms 14412 KB Output is correct
41 Correct 8 ms 14548 KB Output is correct
42 Correct 9 ms 14412 KB Output is correct
43 Correct 9 ms 14340 KB Output is correct
44 Correct 9 ms 14412 KB Output is correct
45 Correct 9 ms 14412 KB Output is correct
46 Correct 9 ms 14412 KB Output is correct
47 Correct 9 ms 14412 KB Output is correct
48 Correct 9 ms 14412 KB Output is correct
49 Correct 9 ms 14412 KB Output is correct
50 Correct 8 ms 14412 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 14412 KB Output is correct
2 Correct 8 ms 14412 KB Output is correct
3 Correct 8 ms 14412 KB Output is correct
4 Correct 8 ms 14412 KB Output is correct
5 Correct 8 ms 14412 KB Output is correct
6 Correct 8 ms 14412 KB Output is correct
7 Correct 8 ms 14412 KB Output is correct
8 Correct 8 ms 14412 KB Output is correct
9 Correct 8 ms 14412 KB Output is correct
10 Correct 8 ms 14412 KB Output is correct
11 Correct 8 ms 14412 KB Output is correct
12 Correct 8 ms 14440 KB Output is correct
13 Correct 8 ms 14412 KB Output is correct
14 Correct 8 ms 14452 KB Output is correct
15 Correct 10 ms 14456 KB Output is correct
16 Correct 9 ms 14412 KB Output is correct
17 Correct 8 ms 14412 KB Output is correct
18 Correct 8 ms 14412 KB Output is correct
19 Correct 8 ms 14412 KB Output is correct
20 Correct 8 ms 14412 KB Output is correct
21 Correct 9 ms 14412 KB Output is correct
22 Correct 9 ms 14412 KB Output is correct
23 Correct 9 ms 14436 KB Output is correct
24 Correct 9 ms 14420 KB Output is correct
25 Correct 9 ms 14364 KB Output is correct
26 Correct 9 ms 14388 KB Output is correct
27 Correct 9 ms 14412 KB Output is correct
28 Correct 9 ms 14412 KB Output is correct
29 Correct 9 ms 14412 KB Output is correct
30 Correct 9 ms 14412 KB Output is correct
31 Correct 8 ms 14412 KB Output is correct
32 Correct 8 ms 14412 KB Output is correct
33 Correct 9 ms 14412 KB Output is correct
34 Correct 10 ms 14428 KB Output is correct
35 Correct 9 ms 14412 KB Output is correct
36 Correct 9 ms 14444 KB Output is correct
37 Correct 9 ms 14380 KB Output is correct
38 Correct 8 ms 14460 KB Output is correct
39 Correct 9 ms 14412 KB Output is correct
40 Correct 9 ms 14412 KB Output is correct
41 Correct 8 ms 14548 KB Output is correct
42 Correct 9 ms 14412 KB Output is correct
43 Correct 9 ms 14340 KB Output is correct
44 Correct 9 ms 14412 KB Output is correct
45 Correct 9 ms 14412 KB Output is correct
46 Correct 9 ms 14412 KB Output is correct
47 Correct 9 ms 14412 KB Output is correct
48 Correct 9 ms 14412 KB Output is correct
49 Correct 9 ms 14412 KB Output is correct
50 Correct 8 ms 14412 KB Output is correct
51 Correct 12 ms 14540 KB Output is correct
52 Correct 11 ms 14668 KB Output is correct
53 Correct 11 ms 14636 KB Output is correct
54 Correct 11 ms 14624 KB Output is correct
55 Correct 10 ms 14540 KB Output is correct
56 Correct 10 ms 14540 KB Output is correct
57 Correct 10 ms 14516 KB Output is correct
58 Correct 10 ms 14532 KB Output is correct
59 Correct 10 ms 14532 KB Output is correct
60 Correct 10 ms 14600 KB Output is correct
61 Correct 11 ms 14860 KB Output is correct
62 Correct 11 ms 14928 KB Output is correct
63 Correct 10 ms 14596 KB Output is correct
64 Correct 10 ms 14540 KB Output is correct
65 Correct 9 ms 14412 KB Output is correct
66 Correct 10 ms 14668 KB Output is correct
67 Correct 10 ms 14584 KB Output is correct
68 Correct 10 ms 14592 KB Output is correct
69 Correct 11 ms 14636 KB Output is correct
70 Correct 10 ms 14528 KB Output is correct

Subtask #4
41.0 / 41.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 14412 KB Output is correct
2 Correct 8 ms 14412 KB Output is correct
3 Correct 8 ms 14412 KB Output is correct
4 Correct 8 ms 14412 KB Output is correct
5 Correct 8 ms 14412 KB Output is correct
6 Correct 8 ms 14412 KB Output is correct
7 Correct 8 ms 14412 KB Output is correct
8 Correct 8 ms 14412 KB Output is correct
9 Correct 8 ms 14412 KB Output is correct
10 Correct 8 ms 14412 KB Output is correct
11 Correct 8 ms 14412 KB Output is correct
12 Correct 8 ms 14440 KB Output is correct
13 Correct 8 ms 14412 KB Output is correct
14 Correct 8 ms 14452 KB Output is correct
15 Correct 10 ms 14456 KB Output is correct
16 Correct 9 ms 14412 KB Output is correct
17 Correct 8 ms 14412 KB Output is correct
18 Correct 8 ms 14412 KB Output is correct
19 Correct 8 ms 14412 KB Output is correct
20 Correct 8 ms 14412 KB Output is correct
21 Correct 9 ms 14412 KB Output is correct
22 Correct 9 ms 14412 KB Output is correct
23 Correct 9 ms 14436 KB Output is correct
24 Correct 9 ms 14420 KB Output is correct
25 Correct 9 ms 14364 KB Output is correct
26 Correct 9 ms 14388 KB Output is correct
27 Correct 9 ms 14412 KB Output is correct
28 Correct 9 ms 14412 KB Output is correct
29 Correct 9 ms 14412 KB Output is correct
30 Correct 9 ms 14412 KB Output is correct
31 Correct 8 ms 14412 KB Output is correct
32 Correct 8 ms 14412 KB Output is correct
33 Correct 9 ms 14412 KB Output is correct
34 Correct 10 ms 14428 KB Output is correct
35 Correct 9 ms 14412 KB Output is correct
36 Correct 9 ms 14444 KB Output is correct
37 Correct 9 ms 14380 KB Output is correct
38 Correct 8 ms 14460 KB Output is correct
39 Correct 9 ms 14412 KB Output is correct
40 Correct 9 ms 14412 KB Output is correct
41 Correct 8 ms 14548 KB Output is correct
42 Correct 9 ms 14412 KB Output is correct
43 Correct 9 ms 14340 KB Output is correct
44 Correct 9 ms 14412 KB Output is correct
45 Correct 9 ms 14412 KB Output is correct
46 Correct 9 ms 14412 KB Output is correct
47 Correct 9 ms 14412 KB Output is correct
48 Correct 9 ms 14412 KB Output is correct
49 Correct 9 ms 14412 KB Output is correct
50 Correct 8 ms 14412 KB Output is correct
51 Correct 12 ms 14540 KB Output is correct
52 Correct 11 ms 14668 KB Output is correct
53 Correct 11 ms 14636 KB Output is correct
54 Correct 11 ms 14624 KB Output is correct
55 Correct 10 ms 14540 KB Output is correct
56 Correct 10 ms 14540 KB Output is correct
57 Correct 10 ms 14516 KB Output is correct
58 Correct 10 ms 14532 KB Output is correct
59 Correct 10 ms 14532 KB Output is correct
60 Correct 10 ms 14600 KB Output is correct
61 Correct 11 ms 14860 KB Output is correct
62 Correct 11 ms 14928 KB Output is correct
63 Correct 10 ms 14596 KB Output is correct
64 Correct 10 ms 14540 KB Output is correct
65 Correct 9 ms 14412 KB Output is correct
66 Correct 10 ms 14668 KB Output is correct
67 Correct 10 ms 14584 KB Output is correct
68 Correct 10 ms 14592 KB Output is correct
69 Correct 11 ms 14636 KB Output is correct
70 Correct 10 ms 14528 KB Output is correct
71 Correct 35 ms 17688 KB Output is correct
72 Correct 36 ms 17092 KB Output is correct
73 Correct 23 ms 16588 KB Output is correct
74 Correct 36 ms 19736 KB Output is correct
75 Correct 36 ms 19088 KB Output is correct
76 Correct 300 ms 48892 KB Output is correct
77 Correct 294 ms 38596 KB Output is correct
78 Correct 205 ms 27376 KB Output is correct
79 Correct 246 ms 41036 KB Output is correct
80 Correct 259 ms 36708 KB Output is correct
81 Correct 35 ms 17632 KB Output is correct
82 Correct 34 ms 17032 KB Output is correct
83 Correct 22 ms 16708 KB Output is correct
84 Correct 36 ms 19600 KB Output is correct
85 Correct 36 ms 18980 KB Output is correct
86 Correct 241 ms 42096 KB Output is correct
87 Correct 240 ms 42168 KB Output is correct
88 Correct 170 ms 27316 KB Output is correct
89 Correct 248 ms 40260 KB Output is correct
90 Correct 260 ms 36920 KB Output is correct