oj.uz

Submission #65175

# Submission time Handle Problem Language Result Execution time Memory
65175 2018-08-06T23:47:36 Z gs18115 None (KOI18_family) C++14
100 / 100
 861 ms 106080 KB 
#include<iostream>
#include<vector>
#include<algorithm>
using namespace std;
const int INF=1e9;
const int MAXN=3e5+10;
vector<int>adj[2][MAXN];
bool vi[MAXN];
int K,i,j;
int root[2],N[2];
int pa[2][MAXN],leaf[2][MAXN];
int lev[MAXN],sz[MAXN],par[MAXN];
int chk[MAXN];
int cnt;
int parent(int x)
{
    if(par[x]==-1)
        return x;
    return par[x]=parent(par[x]);
}
void Union(int x,int y)
{
    int X=parent(x);
    int Y=parent(y);
    if(X==Y)
        return;
    if(lev[X]>lev[Y])
    {
        par[Y]=X;
        sz[X]+=sz[Y];
    }
    else if(lev[Y]>lev[X])
    {
        par[X]=Y;
        sz[Y]+=sz[X];
        lev[Y]++;
    }
    else if(sz[X]>sz[Y])
    {
        par[Y]=X;
        sz[X]+=sz[Y];
        lev[X]++;
    }
    else
    {
        par[X]=Y;
        sz[Y]+=sz[X];
    }
    return;
}
struct NODE
{
    int sz,lv;
    int tree,node;
}tree[2][MAXN];
vector<NODE>sorting;
bool cmp(NODE a,NODE b)
{
    return a.sz!=b.sz?a.sz<b.sz:a.lv>b.lv;
}
void pc(int t,int h)
{
    if(vi[h])
        return;
    vi[h]=true;
    if(pa[t][h]!=-1)
    {
        adj[t][pa[t][h]].push_back(h);
        pc(t,pa[t][h]);
    }
    return;
}
pair<int,int>dfs(int t,int h,int lv)
{
    tree[t][h].lv=lv;
    tree[t][h].tree=t;
    tree[t][h].node=h;
    if(adj[t][h].empty())
    {
        leaf[t][h]=h;
        tree[t][h].sz=1;
        return make_pair(h,1);
    }
    pair<int,int>P;
    P=dfs(t,adj[t][h][0],lv+1);
    leaf[t][h]=P.first;
    int s=P.second;
    for(int i=1;i<adj[t][h].size();i++)
    {
        P=dfs(t,adj[t][h][i],lv+1);
        s+=P.second;
    }
    tree[t][h].sz=s;
    return make_pair(leaf[t][h],tree[t][h].sz);
}
int main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    cout.tie(0);
    cin>>N[0]>>N[1]>>K;
    for(i=0;i<N[0];i++)
    {
        cin>>pa[0][i];
        if(pa[0][i]==0)
            root[0]=i;
        pa[0][i]--;
    }
    for(i=0;i<N[1];i++)
    {
        cin>>pa[1][i];
        if(pa[1][i]==0)
            root[1]=i;
        pa[1][i]--;
    }
    fill(vi,vi+N[0],false);
    for(i=0;i<K;i++)
        pc(0,i);
    fill(vi,vi+N[1],false);
    for(i=0;i<K;i++)
        pc(1,i);
    dfs(0,root[0],0);
    dfs(1,root[1],0);
    for(i=0;i<2;i++)
        for(j=K;j<N[i];j++)
            sorting.push_back(tree[i][j]);
    sort(sorting.begin(),sorting.end(),cmp);
    fill(par,par+MAXN,-1);
    fill(sz,sz+MAXN,1);
    for(i=0;i<sorting.size();i++)
    {
        NODE X=sorting[i];
        for(j=0;j<adj[X.tree][X.node].size();j++)
        {
            int Y=adj[X.tree][X.node][j];
            Union(leaf[X.tree][X.node],leaf[X.tree][Y]);
        }
        if(sz[parent(leaf[X.tree][X.node])]!=X.sz)
            return cout<<"NO",0;
    }
    cout<<"YES";
    return 0;
}

Compilation message

family.cpp: In function 'std::pair<int, int> dfs(int, int, int)':
family.cpp:88:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(int i=1;i<adj[t][h].size();i++)
                 ~^~~~~~~~~~~~~~~~~
family.cpp: In function 'int main()':
family.cpp:130:14: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(i=0;i<sorting.size();i++)
             ~^~~~~~~~~~~~~~~
family.cpp:133:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         for(j=0;j<adj[X.tree][X.node].size();j++)
                 ~^~~~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 17 ms 16888 KB Output is correct
2 Correct 17 ms 16888 KB Output is correct
3 Correct 18 ms 16928 KB Output is correct
4 Correct 17 ms 16928 KB Output is correct
5 Correct 17 ms 17012 KB Output is correct
6 Correct 18 ms 17016 KB Output is correct
7 Correct 17 ms 17052 KB Output is correct
8 Correct 19 ms 17080 KB Output is correct
9 Correct 18 ms 17080 KB Output is correct
10 Correct 24 ms 17120 KB Output is correct
11 Correct 21 ms 17120 KB Output is correct
12 Correct 20 ms 17120 KB Output is correct
13 Correct 17 ms 17132 KB Output is correct
14 Correct 18 ms 17136 KB Output is correct
15 Correct 19 ms 17232 KB Output is correct
16 Correct 18 ms 17232 KB Output is correct
17 Correct 17 ms 17232 KB Output is correct
18 Correct 18 ms 17312 KB Output is correct
19 Correct 20 ms 17312 KB Output is correct
20 Correct 20 ms 17312 KB Output is correct
21 Correct 19 ms 17312 KB Output is correct
22 Correct 18 ms 17312 KB Output is correct
23 Correct 19 ms 17312 KB Output is correct
24 Correct 20 ms 17312 KB Output is correct
25 Correct 18 ms 17312 KB Output is correct
26 Correct 17 ms 17312 KB Output is correct
27 Correct 20 ms 17312 KB Output is correct
28 Correct 21 ms 17312 KB Output is correct
29 Correct 19 ms 17312 KB Output is correct
30 Correct 20 ms 17312 KB Output is correct

Subtask #2
27.0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 17 ms 16888 KB Output is correct
2 Correct 17 ms 16888 KB Output is correct
3 Correct 18 ms 16928 KB Output is correct
4 Correct 17 ms 16928 KB Output is correct
5 Correct 17 ms 17012 KB Output is correct
6 Correct 18 ms 17016 KB Output is correct
7 Correct 17 ms 17052 KB Output is correct
8 Correct 19 ms 17080 KB Output is correct
9 Correct 18 ms 17080 KB Output is correct
10 Correct 24 ms 17120 KB Output is correct
11 Correct 21 ms 17120 KB Output is correct
12 Correct 20 ms 17120 KB Output is correct
13 Correct 17 ms 17132 KB Output is correct
14 Correct 18 ms 17136 KB Output is correct
15 Correct 19 ms 17232 KB Output is correct
16 Correct 18 ms 17232 KB Output is correct
17 Correct 17 ms 17232 KB Output is correct
18 Correct 18 ms 17312 KB Output is correct
19 Correct 20 ms 17312 KB Output is correct
20 Correct 20 ms 17312 KB Output is correct
21 Correct 19 ms 17312 KB Output is correct
22 Correct 18 ms 17312 KB Output is correct
23 Correct 19 ms 17312 KB Output is correct
24 Correct 20 ms 17312 KB Output is correct
25 Correct 18 ms 17312 KB Output is correct
26 Correct 17 ms 17312 KB Output is correct
27 Correct 20 ms 17312 KB Output is correct
28 Correct 21 ms 17312 KB Output is correct
29 Correct 19 ms 17312 KB Output is correct
30 Correct 20 ms 17312 KB Output is correct
31 Correct 18 ms 17312 KB Output is correct
32 Correct 17 ms 17312 KB Output is correct
33 Correct 18 ms 17312 KB Output is correct
34 Correct 19 ms 17312 KB Output is correct
35 Correct 20 ms 17312 KB Output is correct
36 Correct 19 ms 17312 KB Output is correct
37 Correct 20 ms 17312 KB Output is correct
38 Correct 19 ms 17312 KB Output is correct
39 Correct 17 ms 17312 KB Output is correct
40 Correct 17 ms 17312 KB Output is correct
41 Correct 20 ms 17312 KB Output is correct
42 Correct 19 ms 17324 KB Output is correct
43 Correct 18 ms 17324 KB Output is correct
44 Correct 20 ms 17324 KB Output is correct
45 Correct 17 ms 17324 KB Output is correct
46 Correct 18 ms 17328 KB Output is correct
47 Correct 19 ms 17332 KB Output is correct
48 Correct 17 ms 17336 KB Output is correct
49 Correct 17 ms 17340 KB Output is correct
50 Correct 17 ms 17344 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 17 ms 16888 KB Output is correct
2 Correct 17 ms 16888 KB Output is correct
3 Correct 18 ms 16928 KB Output is correct
4 Correct 17 ms 16928 KB Output is correct
5 Correct 17 ms 17012 KB Output is correct
6 Correct 18 ms 17016 KB Output is correct
7 Correct 17 ms 17052 KB Output is correct
8 Correct 19 ms 17080 KB Output is correct
9 Correct 18 ms 17080 KB Output is correct
10 Correct 24 ms 17120 KB Output is correct
11 Correct 21 ms 17120 KB Output is correct
12 Correct 20 ms 17120 KB Output is correct
13 Correct 17 ms 17132 KB Output is correct
14 Correct 18 ms 17136 KB Output is correct
15 Correct 19 ms 17232 KB Output is correct
16 Correct 18 ms 17232 KB Output is correct
17 Correct 17 ms 17232 KB Output is correct
18 Correct 18 ms 17312 KB Output is correct
19 Correct 20 ms 17312 KB Output is correct
20 Correct 20 ms 17312 KB Output is correct
21 Correct 19 ms 17312 KB Output is correct
22 Correct 18 ms 17312 KB Output is correct
23 Correct 19 ms 17312 KB Output is correct
24 Correct 20 ms 17312 KB Output is correct
25 Correct 18 ms 17312 KB Output is correct
26 Correct 17 ms 17312 KB Output is correct
27 Correct 20 ms 17312 KB Output is correct
28 Correct 21 ms 17312 KB Output is correct
29 Correct 19 ms 17312 KB Output is correct
30 Correct 20 ms 17312 KB Output is correct
31 Correct 18 ms 17312 KB Output is correct
32 Correct 17 ms 17312 KB Output is correct
33 Correct 18 ms 17312 KB Output is correct
34 Correct 19 ms 17312 KB Output is correct
35 Correct 20 ms 17312 KB Output is correct
36 Correct 19 ms 17312 KB Output is correct
37 Correct 20 ms 17312 KB Output is correct
38 Correct 19 ms 17312 KB Output is correct
39 Correct 17 ms 17312 KB Output is correct
40 Correct 17 ms 17312 KB Output is correct
41 Correct 20 ms 17312 KB Output is correct
42 Correct 19 ms 17324 KB Output is correct
43 Correct 18 ms 17324 KB Output is correct
44 Correct 20 ms 17324 KB Output is correct
45 Correct 17 ms 17324 KB Output is correct
46 Correct 18 ms 17328 KB Output is correct
47 Correct 19 ms 17332 KB Output is correct
48 Correct 17 ms 17336 KB Output is correct
49 Correct 17 ms 17340 KB Output is correct
50 Correct 17 ms 17344 KB Output is correct
51 Correct 20 ms 17604 KB Output is correct
52 Correct 22 ms 17832 KB Output is correct
53 Correct 21 ms 18120 KB Output is correct
54 Correct 24 ms 18120 KB Output is correct
55 Correct 21 ms 18120 KB Output is correct
56 Correct 27 ms 18120 KB Output is correct
57 Correct 23 ms 18120 KB Output is correct
58 Correct 22 ms 18304 KB Output is correct
59 Correct 21 ms 18304 KB Output is correct
60 Correct 22 ms 18304 KB Output is correct
61 Correct 22 ms 18732 KB Output is correct
62 Correct 25 ms 18784 KB Output is correct
63 Correct 21 ms 18784 KB Output is correct
64 Correct 20 ms 18784 KB Output is correct
65 Correct 20 ms 18784 KB Output is correct
66 Correct 23 ms 18784 KB Output is correct
67 Correct 22 ms 18784 KB Output is correct
68 Correct 24 ms 18888 KB Output is correct
69 Correct 21 ms 18904 KB Output is correct
70 Correct 20 ms 18904 KB Output is correct

Subtask #4
41.0 / 41.0

# Verdict Execution time Memory Grader output
1 Correct 17 ms 16888 KB Output is correct
2 Correct 17 ms 16888 KB Output is correct
3 Correct 18 ms 16928 KB Output is correct
4 Correct 17 ms 16928 KB Output is correct
5 Correct 17 ms 17012 KB Output is correct
6 Correct 18 ms 17016 KB Output is correct
7 Correct 17 ms 17052 KB Output is correct
8 Correct 19 ms 17080 KB Output is correct
9 Correct 18 ms 17080 KB Output is correct
10 Correct 24 ms 17120 KB Output is correct
11 Correct 21 ms 17120 KB Output is correct
12 Correct 20 ms 17120 KB Output is correct
13 Correct 17 ms 17132 KB Output is correct
14 Correct 18 ms 17136 KB Output is correct
15 Correct 19 ms 17232 KB Output is correct
16 Correct 18 ms 17232 KB Output is correct
17 Correct 17 ms 17232 KB Output is correct
18 Correct 18 ms 17312 KB Output is correct
19 Correct 20 ms 17312 KB Output is correct
20 Correct 20 ms 17312 KB Output is correct
21 Correct 19 ms 17312 KB Output is correct
22 Correct 18 ms 17312 KB Output is correct
23 Correct 19 ms 17312 KB Output is correct
24 Correct 20 ms 17312 KB Output is correct
25 Correct 18 ms 17312 KB Output is correct
26 Correct 17 ms 17312 KB Output is correct
27 Correct 20 ms 17312 KB Output is correct
28 Correct 21 ms 17312 KB Output is correct
29 Correct 19 ms 17312 KB Output is correct
30 Correct 20 ms 17312 KB Output is correct
31 Correct 18 ms 17312 KB Output is correct
32 Correct 17 ms 17312 KB Output is correct
33 Correct 18 ms 17312 KB Output is correct
34 Correct 19 ms 17312 KB Output is correct
35 Correct 20 ms 17312 KB Output is correct
36 Correct 19 ms 17312 KB Output is correct
37 Correct 20 ms 17312 KB Output is correct
38 Correct 19 ms 17312 KB Output is correct
39 Correct 17 ms 17312 KB Output is correct
40 Correct 17 ms 17312 KB Output is correct
41 Correct 20 ms 17312 KB Output is correct
42 Correct 19 ms 17324 KB Output is correct
43 Correct 18 ms 17324 KB Output is correct
44 Correct 20 ms 17324 KB Output is correct
45 Correct 17 ms 17324 KB Output is correct
46 Correct 18 ms 17328 KB Output is correct
47 Correct 19 ms 17332 KB Output is correct
48 Correct 17 ms 17336 KB Output is correct
49 Correct 17 ms 17340 KB Output is correct
50 Correct 17 ms 17344 KB Output is correct
51 Correct 20 ms 17604 KB Output is correct
52 Correct 22 ms 17832 KB Output is correct
53 Correct 21 ms 18120 KB Output is correct
54 Correct 24 ms 18120 KB Output is correct
55 Correct 21 ms 18120 KB Output is correct
56 Correct 27 ms 18120 KB Output is correct
57 Correct 23 ms 18120 KB Output is correct
58 Correct 22 ms 18304 KB Output is correct
59 Correct 21 ms 18304 KB Output is correct
60 Correct 22 ms 18304 KB Output is correct
61 Correct 22 ms 18732 KB Output is correct
62 Correct 25 ms 18784 KB Output is correct
63 Correct 21 ms 18784 KB Output is correct
64 Correct 20 ms 18784 KB Output is correct
65 Correct 20 ms 18784 KB Output is correct
66 Correct 23 ms 18784 KB Output is correct
67 Correct 22 ms 18784 KB Output is correct
68 Correct 24 ms 18888 KB Output is correct
69 Correct 21 ms 18904 KB Output is correct
70 Correct 20 ms 18904 KB Output is correct
71 Correct 77 ms 24496 KB Output is correct
72 Correct 74 ms 24496 KB Output is correct
73 Correct 51 ms 24496 KB Output is correct
74 Correct 83 ms 29380 KB Output is correct
75 Correct 97 ms 29380 KB Output is correct
76 Correct 729 ms 85856 KB Output is correct
77 Correct 861 ms 85856 KB Output is correct
78 Correct 403 ms 85856 KB Output is correct
79 Correct 557 ms 85856 KB Output is correct
80 Correct 591 ms 85856 KB Output is correct
81 Correct 69 ms 85856 KB Output is correct
82 Correct 57 ms 85856 KB Output is correct
83 Correct 53 ms 85856 KB Output is correct
84 Correct 82 ms 85856 KB Output is correct
85 Correct 88 ms 85856 KB Output is correct
86 Correct 545 ms 87416 KB Output is correct
87 Correct 601 ms 91424 KB Output is correct
88 Correct 325 ms 91424 KB Output is correct
89 Correct 546 ms 100676 KB Output is correct
90 Correct 552 ms 106080 KB Output is correct