oj.uz

Submission #557533

# Submission time Handle Problem Language Result Execution time Memory
557533 2022-05-05T12:40:55 Z myrcella None (KOI18_family) C++17
100 / 100
 643 ms 124084 KB 
//by szh
#include<bits/stdc++.h>
using namespace std;

#define fi first
#define se second
#define pii pair<int,int>
#define pll pair<long long,long long>
#define pb push_back
#define debug(x) cerr<<#x<<"="<<x<<endl
#define pq priority_queue
#define inf 0x3f
#define rep(i,a,b) for (int i=a;i<(b);i++)
#define MP make_pair
#define SZ(x) (int(x.size()))
#define ll long long
#define mod 1000000007
#define ALL(x) x.begin(),x.end()
void inc(int &a,int b) {a=(a+b)%mod;}
void dec(int &a,int b) {a=(a-b+mod)%mod;}
int lowbit(int x) {return x&(-x);}
ll p0w(ll base,ll p) {ll ret=1;while(p>0){if (p%2ll==1ll) ret=ret*base%mod;base=base*base%mod;p/=2ll;}return ret;}

const int maxn = 3e5+10;

int n[2],m;
int fa[2][maxn];
map <int,int> mp[2][maxn];
int sz[2][maxn];
vector <int> edge[2][maxn];
int dep[2][maxn];
vector <pii> pt;

int getf(int id,int node) {
	if (fa[id][node]==node) return fa[id][node];
	else return fa[id][node] = getf(id,fa[id][node]);
}

int p[2][maxn];

int dfs(int id,int u) {
	if (u<m) return 1;
	sz[id][u]=0;
	pt.pb({id,u});
	for (int v:edge[id][u]) {
		dep[id][v]= dep[id][u]+1;
		sz[id][u]+=dfs(id,v);
	}
	return sz[id][u];
}

bool cmp(pii a, pii b ) {
	if (sz[a.fi][a.se]!=sz[b.fi][b.se]) return sz[a.fi][a.se]<sz[b.fi][b.se];
	else return dep[a.fi][a.se]>dep[b.fi][b.se];
}

int main() {
//	freopen("input.txt","r",stdin);	
	std::ios::sync_with_stdio(false);cin.tie();
	cin>>n[0]>>n[1]>>m;
	memset(sz,0,sizeof(sz));
	int rt[2];
	rep(k,0,2) rep(i,0,n[k]) {
		cin>>p[k][i];
		p[k][i]--;
		if (p[k][i]!=-1) edge[k][p[k][i]].pb(i);
		else rt[k] = i;
		if (i<m) fa[k][i] = p[k][i];
		else fa[k][i] = i;
	}
	dfs(0,rt[0]);
	dfs(1,rt[1]);
	rep(k,0,2)
		rep(i,0,m) {
			int ff1 = getf(k,i);
			int ff2 = getf(1-k,i);
			mp[k][ff1][ff2] = 1;
		}
	
	sort(ALL(pt),cmp);
	
	for (auto cur:pt) {
		int x=cur.fi,y=cur.se;
		
		int tmp = getf(1-x,(mp[x][y].begin())->fi);
		
		
		if (mp[x][y].size()>1) {
			for (auto it:mp[x][y]) {
				if (getf(1-x,it.fi)!=tmp) {
					cout<<"NO";
					return 0;
				}
			}
			
		}
//		debug(tmp);
		if (p[x][y]!=-1) mp[x][p[x][y]][tmp] = 1, fa[x][y] = p[x][y];
	}
	cout<<"YES";
	return 0;
}

Subtask #1
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 21 ms 44884 KB Output is correct
2 Correct 22 ms 44936 KB Output is correct
3 Correct 25 ms 44984 KB Output is correct
4 Correct 23 ms 44948 KB Output is correct
5 Correct 22 ms 44896 KB Output is correct
6 Correct 22 ms 44940 KB Output is correct
7 Correct 22 ms 44932 KB Output is correct
8 Correct 23 ms 44920 KB Output is correct
9 Correct 22 ms 44884 KB Output is correct
10 Correct 22 ms 44896 KB Output is correct
11 Correct 24 ms 44896 KB Output is correct
12 Correct 22 ms 44864 KB Output is correct
13 Correct 24 ms 45028 KB Output is correct
14 Correct 23 ms 45020 KB Output is correct
15 Correct 21 ms 44928 KB Output is correct
16 Correct 20 ms 44936 KB Output is correct
17 Correct 26 ms 45056 KB Output is correct
18 Correct 25 ms 44924 KB Output is correct
19 Correct 22 ms 44980 KB Output is correct
20 Correct 22 ms 44932 KB Output is correct
21 Correct 24 ms 45012 KB Output is correct
22 Correct 21 ms 44928 KB Output is correct
23 Correct 22 ms 44912 KB Output is correct
24 Correct 22 ms 44884 KB Output is correct
25 Correct 22 ms 44920 KB Output is correct
26 Correct 22 ms 44896 KB Output is correct
27 Correct 22 ms 44880 KB Output is correct
28 Correct 23 ms 44952 KB Output is correct
29 Correct 25 ms 45028 KB Output is correct
30 Correct 22 ms 44952 KB Output is correct

Subtask #2
27.0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 21 ms 44884 KB Output is correct
2 Correct 22 ms 44936 KB Output is correct
3 Correct 25 ms 44984 KB Output is correct
4 Correct 23 ms 44948 KB Output is correct
5 Correct 22 ms 44896 KB Output is correct
6 Correct 22 ms 44940 KB Output is correct
7 Correct 22 ms 44932 KB Output is correct
8 Correct 23 ms 44920 KB Output is correct
9 Correct 22 ms 44884 KB Output is correct
10 Correct 22 ms 44896 KB Output is correct
11 Correct 24 ms 44896 KB Output is correct
12 Correct 22 ms 44864 KB Output is correct
13 Correct 24 ms 45028 KB Output is correct
14 Correct 23 ms 45020 KB Output is correct
15 Correct 21 ms 44928 KB Output is correct
16 Correct 20 ms 44936 KB Output is correct
17 Correct 26 ms 45056 KB Output is correct
18 Correct 25 ms 44924 KB Output is correct
19 Correct 22 ms 44980 KB Output is correct
20 Correct 22 ms 44932 KB Output is correct
21 Correct 24 ms 45012 KB Output is correct
22 Correct 21 ms 44928 KB Output is correct
23 Correct 22 ms 44912 KB Output is correct
24 Correct 22 ms 44884 KB Output is correct
25 Correct 22 ms 44920 KB Output is correct
26 Correct 22 ms 44896 KB Output is correct
27 Correct 22 ms 44880 KB Output is correct
28 Correct 23 ms 44952 KB Output is correct
29 Correct 25 ms 45028 KB Output is correct
30 Correct 22 ms 44952 KB Output is correct
31 Correct 25 ms 44936 KB Output is correct
32 Correct 25 ms 44880 KB Output is correct
33 Correct 23 ms 44928 KB Output is correct
34 Correct 23 ms 44884 KB Output is correct
35 Correct 23 ms 44888 KB Output is correct
36 Correct 22 ms 44928 KB Output is correct
37 Correct 24 ms 44968 KB Output is correct
38 Correct 21 ms 45012 KB Output is correct
39 Correct 25 ms 45012 KB Output is correct
40 Correct 23 ms 45012 KB Output is correct
41 Correct 22 ms 44884 KB Output is correct
42 Correct 22 ms 44924 KB Output is correct
43 Correct 22 ms 44904 KB Output is correct
44 Correct 24 ms 44884 KB Output is correct
45 Correct 23 ms 44884 KB Output is correct
46 Correct 22 ms 44928 KB Output is correct
47 Correct 28 ms 44980 KB Output is correct
48 Correct 22 ms 44908 KB Output is correct
49 Correct 22 ms 44976 KB Output is correct
50 Correct 21 ms 45012 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 21 ms 44884 KB Output is correct
2 Correct 22 ms 44936 KB Output is correct
3 Correct 25 ms 44984 KB Output is correct
4 Correct 23 ms 44948 KB Output is correct
5 Correct 22 ms 44896 KB Output is correct
6 Correct 22 ms 44940 KB Output is correct
7 Correct 22 ms 44932 KB Output is correct
8 Correct 23 ms 44920 KB Output is correct
9 Correct 22 ms 44884 KB Output is correct
10 Correct 22 ms 44896 KB Output is correct
11 Correct 24 ms 44896 KB Output is correct
12 Correct 22 ms 44864 KB Output is correct
13 Correct 24 ms 45028 KB Output is correct
14 Correct 23 ms 45020 KB Output is correct
15 Correct 21 ms 44928 KB Output is correct
16 Correct 20 ms 44936 KB Output is correct
17 Correct 26 ms 45056 KB Output is correct
18 Correct 25 ms 44924 KB Output is correct
19 Correct 22 ms 44980 KB Output is correct
20 Correct 22 ms 44932 KB Output is correct
21 Correct 24 ms 45012 KB Output is correct
22 Correct 21 ms 44928 KB Output is correct
23 Correct 22 ms 44912 KB Output is correct
24 Correct 22 ms 44884 KB Output is correct
25 Correct 22 ms 44920 KB Output is correct
26 Correct 22 ms 44896 KB Output is correct
27 Correct 22 ms 44880 KB Output is correct
28 Correct 23 ms 44952 KB Output is correct
29 Correct 25 ms 45028 KB Output is correct
30 Correct 22 ms 44952 KB Output is correct
31 Correct 25 ms 44936 KB Output is correct
32 Correct 25 ms 44880 KB Output is correct
33 Correct 23 ms 44928 KB Output is correct
34 Correct 23 ms 44884 KB Output is correct
35 Correct 23 ms 44888 KB Output is correct
36 Correct 22 ms 44928 KB Output is correct
37 Correct 24 ms 44968 KB Output is correct
38 Correct 21 ms 45012 KB Output is correct
39 Correct 25 ms 45012 KB Output is correct
40 Correct 23 ms 45012 KB Output is correct
41 Correct 22 ms 44884 KB Output is correct
42 Correct 22 ms 44924 KB Output is correct
43 Correct 22 ms 44904 KB Output is correct
44 Correct 24 ms 44884 KB Output is correct
45 Correct 23 ms 44884 KB Output is correct
46 Correct 22 ms 44928 KB Output is correct
47 Correct 28 ms 44980 KB Output is correct
48 Correct 22 ms 44908 KB Output is correct
49 Correct 22 ms 44976 KB Output is correct
50 Correct 21 ms 45012 KB Output is correct
51 Correct 27 ms 45140 KB Output is correct
52 Correct 27 ms 45428 KB Output is correct
53 Correct 25 ms 45568 KB Output is correct
54 Correct 24 ms 45384 KB Output is correct
55 Correct 23 ms 45200 KB Output is correct
56 Correct 24 ms 45188 KB Output is correct
57 Correct 24 ms 45156 KB Output is correct
58 Correct 24 ms 45264 KB Output is correct
59 Correct 27 ms 45240 KB Output is correct
60 Correct 24 ms 45088 KB Output is correct
61 Correct 24 ms 45808 KB Output is correct
62 Correct 26 ms 45832 KB Output is correct
63 Correct 24 ms 45140 KB Output is correct
64 Correct 24 ms 45304 KB Output is correct
65 Correct 23 ms 45012 KB Output is correct
66 Correct 24 ms 45412 KB Output is correct
67 Correct 23 ms 45164 KB Output is correct
68 Correct 25 ms 45396 KB Output is correct
69 Correct 26 ms 45388 KB Output is correct
70 Correct 24 ms 45176 KB Output is correct

Subtask #4
41.0 / 41.0

# Verdict Execution time Memory Grader output
1 Correct 21 ms 44884 KB Output is correct
2 Correct 22 ms 44936 KB Output is correct
3 Correct 25 ms 44984 KB Output is correct
4 Correct 23 ms 44948 KB Output is correct
5 Correct 22 ms 44896 KB Output is correct
6 Correct 22 ms 44940 KB Output is correct
7 Correct 22 ms 44932 KB Output is correct
8 Correct 23 ms 44920 KB Output is correct
9 Correct 22 ms 44884 KB Output is correct
10 Correct 22 ms 44896 KB Output is correct
11 Correct 24 ms 44896 KB Output is correct
12 Correct 22 ms 44864 KB Output is correct
13 Correct 24 ms 45028 KB Output is correct
14 Correct 23 ms 45020 KB Output is correct
15 Correct 21 ms 44928 KB Output is correct
16 Correct 20 ms 44936 KB Output is correct
17 Correct 26 ms 45056 KB Output is correct
18 Correct 25 ms 44924 KB Output is correct
19 Correct 22 ms 44980 KB Output is correct
20 Correct 22 ms 44932 KB Output is correct
21 Correct 24 ms 45012 KB Output is correct
22 Correct 21 ms 44928 KB Output is correct
23 Correct 22 ms 44912 KB Output is correct
24 Correct 22 ms 44884 KB Output is correct
25 Correct 22 ms 44920 KB Output is correct
26 Correct 22 ms 44896 KB Output is correct
27 Correct 22 ms 44880 KB Output is correct
28 Correct 23 ms 44952 KB Output is correct
29 Correct 25 ms 45028 KB Output is correct
30 Correct 22 ms 44952 KB Output is correct
31 Correct 25 ms 44936 KB Output is correct
32 Correct 25 ms 44880 KB Output is correct
33 Correct 23 ms 44928 KB Output is correct
34 Correct 23 ms 44884 KB Output is correct
35 Correct 23 ms 44888 KB Output is correct
36 Correct 22 ms 44928 KB Output is correct
37 Correct 24 ms 44968 KB Output is correct
38 Correct 21 ms 45012 KB Output is correct
39 Correct 25 ms 45012 KB Output is correct
40 Correct 23 ms 45012 KB Output is correct
41 Correct 22 ms 44884 KB Output is correct
42 Correct 22 ms 44924 KB Output is correct
43 Correct 22 ms 44904 KB Output is correct
44 Correct 24 ms 44884 KB Output is correct
45 Correct 23 ms 44884 KB Output is correct
46 Correct 22 ms 44928 KB Output is correct
47 Correct 28 ms 44980 KB Output is correct
48 Correct 22 ms 44908 KB Output is correct
49 Correct 22 ms 44976 KB Output is correct
50 Correct 21 ms 45012 KB Output is correct
51 Correct 27 ms 45140 KB Output is correct
52 Correct 27 ms 45428 KB Output is correct
53 Correct 25 ms 45568 KB Output is correct
54 Correct 24 ms 45384 KB Output is correct
55 Correct 23 ms 45200 KB Output is correct
56 Correct 24 ms 45188 KB Output is correct
57 Correct 24 ms 45156 KB Output is correct
58 Correct 24 ms 45264 KB Output is correct
59 Correct 27 ms 45240 KB Output is correct
60 Correct 24 ms 45088 KB Output is correct
61 Correct 24 ms 45808 KB Output is correct
62 Correct 26 ms 45832 KB Output is correct
63 Correct 24 ms 45140 KB Output is correct
64 Correct 24 ms 45304 KB Output is correct
65 Correct 23 ms 45012 KB Output is correct
66 Correct 24 ms 45412 KB Output is correct
67 Correct 23 ms 45164 KB Output is correct
68 Correct 25 ms 45396 KB Output is correct
69 Correct 26 ms 45388 KB Output is correct
70 Correct 24 ms 45176 KB Output is correct
71 Correct 65 ms 53036 KB Output is correct
72 Correct 59 ms 51076 KB Output is correct
73 Correct 55 ms 50736 KB Output is correct
74 Correct 82 ms 57376 KB Output is correct
75 Correct 77 ms 56416 KB Output is correct
76 Correct 643 ms 124084 KB Output is correct
77 Correct 640 ms 108684 KB Output is correct
78 Correct 261 ms 72880 KB Output is correct
79 Correct 492 ms 107652 KB Output is correct
80 Correct 518 ms 102860 KB Output is correct
81 Correct 66 ms 51832 KB Output is correct
82 Correct 54 ms 50096 KB Output is correct
83 Correct 46 ms 50128 KB Output is correct
84 Correct 94 ms 57156 KB Output is correct
85 Correct 80 ms 54592 KB Output is correct
86 Correct 390 ms 95948 KB Output is correct
87 Correct 358 ms 95968 KB Output is correct
88 Correct 240 ms 70992 KB Output is correct
89 Correct 433 ms 97248 KB Output is correct
90 Correct 467 ms 93204 KB Output is correct