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답안 #404262

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
404262 2021-05-14T03:25:23 Z jamezzz 족보 (KOI18_family) C++14
100 / 100
 435 ms 63704 KB 
#include <bits/stdc++.h>
using namespace std;
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
using namespace __gnu_pbds;
#include <ext/rope>
using namespace __gnu_cxx;

typedef tree<long long, null_type, less<long long>,
rb_tree_tag, tree_order_statistics_node_update> pbds;
//less_equal for identical elements

#define DEBUG

#ifdef DEBUG
#define debug(...) printf(__VA_ARGS__);
#else
#define debug(...)
#endif
#define sf scanf
#define pf printf
#define fi first
#define se second
#define pb emplace_back
#define sz(x) (int)x.size()
#define mnto(x,y) x=min(x,(__typeof__(x))y)
#define mxto(x,y) x=max(x,(__typeof__(x))y)
#define INF 1023456789
#define LINF 1023456789123456789
#define all(x) x.begin(), x.end()
typedef long long ll;
typedef long double ld;
typedef pair<int, int> ii;
typedef pair<ll, ll> pll;
typedef tuple<int, int, int> iii;
typedef tuple<int, int, int, int> iiii;
typedef vector<int> vi;
typedef vector<ii> vii;
typedef vector<pll> vll;

struct rng{ int num,t,u; };

int n[2],k,p,num[2][300005],rep[2][300005],par[300005],sz[300005];
vi AL[2][300005];
vector<rng> rngs;

void dfs(int t,int u){
	if(u!=0&&u<=k){
		num[t][u]=1;
		rep[t][u]=u;
	}
	for(int v:AL[t][u]){
		dfs(t,v);
		num[t][u]+=num[t][v];
		rep[t][u]=rep[t][v];
	}
	if(num[t][u]>1)rngs.push_back({num[t][u],t,u});
}

int fp(int i){
	return (par[i]==i)?i:par[i]=fp(par[i]);
}

void join(int x,int y){
	x=fp(x),y=fp(y);
	if(x==y)return;
	if(sz[x]<sz[y])swap(x,y);
	par[y]=x;sz[x]+=sz[y];
}

int main(){
	sf("%d%d%d",&n[0],&n[1],&k);
	for(int t=0;t<2;++t){
		for(int i=1;i<=n[t];++i){
			sf("%d",&p);
			AL[t][p].pb(i);
		}
	}
	dfs(0,0);dfs(1,0);
	sort(all(rngs),[&](rng a,rng b){return a.num<b.num;});
	for(int i=1;i<=k;++i){
		par[i]=i;sz[i]=1;
	}
	for(rng r:rngs){
		for(int v:AL[r.t][r.u]){
			join(rep[r.t][r.u],rep[r.t][v]);
		}
		if(sz(AL[r.t][r.u])<=1)continue;
		if(sz[fp(rep[r.t][r.u])]!=r.num){
			pf("NO\n");
			return 0;
		}
	}
	pf("YES\n");
}

Compilation message

family.cpp: In function 'int main()':
family.cpp:72:4: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   72 |  sf("%d%d%d",&n[0],&n[1],&k);
      |    ^
family.cpp:75:6: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   75 |    sf("%d",&p);
      |      ^

Subtask #1
17.0 / 17.0

# 결과 실행 시간 메모리 Grader output
1 Correct 9 ms 14396 KB Output is correct
2 Correct 8 ms 14420 KB Output is correct
3 Correct 9 ms 14400 KB Output is correct
4 Correct 8 ms 14412 KB Output is correct
5 Correct 9 ms 14412 KB Output is correct
6 Correct 10 ms 14412 KB Output is correct
7 Correct 8 ms 14392 KB Output is correct
8 Correct 8 ms 14380 KB Output is correct
9 Correct 11 ms 14396 KB Output is correct
10 Correct 9 ms 14412 KB Output is correct
11 Correct 10 ms 14412 KB Output is correct
12 Correct 9 ms 14396 KB Output is correct
13 Correct 8 ms 14396 KB Output is correct
14 Correct 10 ms 14444 KB Output is correct
15 Correct 9 ms 14412 KB Output is correct
16 Correct 9 ms 14392 KB Output is correct
17 Correct 8 ms 14404 KB Output is correct
18 Correct 8 ms 14412 KB Output is correct
19 Correct 8 ms 14400 KB Output is correct
20 Correct 8 ms 14384 KB Output is correct
21 Correct 9 ms 14400 KB Output is correct
22 Correct 9 ms 14412 KB Output is correct
23 Correct 9 ms 14412 KB Output is correct
24 Correct 9 ms 14412 KB Output is correct
25 Correct 9 ms 14364 KB Output is correct
26 Correct 9 ms 14412 KB Output is correct
27 Correct 9 ms 14412 KB Output is correct
28 Correct 9 ms 14392 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

# 결과 실행 시간 메모리 Grader output
1 Correct 9 ms 14396 KB Output is correct
2 Correct 8 ms 14420 KB Output is correct
3 Correct 9 ms 14400 KB Output is correct
4 Correct 8 ms 14412 KB Output is correct
5 Correct 9 ms 14412 KB Output is correct
6 Correct 10 ms 14412 KB Output is correct
7 Correct 8 ms 14392 KB Output is correct
8 Correct 8 ms 14380 KB Output is correct
9 Correct 11 ms 14396 KB Output is correct
10 Correct 9 ms 14412 KB Output is correct
11 Correct 10 ms 14412 KB Output is correct
12 Correct 9 ms 14396 KB Output is correct
13 Correct 8 ms 14396 KB Output is correct
14 Correct 10 ms 14444 KB Output is correct
15 Correct 9 ms 14412 KB Output is correct
16 Correct 9 ms 14392 KB Output is correct
17 Correct 8 ms 14404 KB Output is correct
18 Correct 8 ms 14412 KB Output is correct
19 Correct 8 ms 14400 KB Output is correct
20 Correct 8 ms 14384 KB Output is correct
21 Correct 9 ms 14400 KB Output is correct
22 Correct 9 ms 14412 KB Output is correct
23 Correct 9 ms 14412 KB Output is correct
24 Correct 9 ms 14412 KB Output is correct
25 Correct 9 ms 14364 KB Output is correct
26 Correct 9 ms 14412 KB Output is correct
27 Correct 9 ms 14412 KB Output is correct
28 Correct 9 ms 14392 KB Output is correct
29 Correct 9 ms 14412 KB Output is correct
30 Correct 9 ms 14412 KB Output is correct
31 Correct 9 ms 14348 KB Output is correct
32 Correct 10 ms 14396 KB Output is correct
33 Correct 9 ms 14352 KB Output is correct
34 Correct 10 ms 14412 KB Output is correct
35 Correct 10 ms 14412 KB Output is correct
36 Correct 9 ms 14340 KB Output is correct
37 Correct 9 ms 14448 KB Output is correct
38 Correct 9 ms 14412 KB Output is correct
39 Correct 9 ms 14400 KB Output is correct
40 Correct 9 ms 14396 KB Output is correct
41 Correct 9 ms 14404 KB Output is correct
42 Correct 9 ms 14396 KB Output is correct
43 Correct 9 ms 14412 KB Output is correct
44 Correct 8 ms 14412 KB Output is correct
45 Correct 9 ms 14388 KB Output is correct
46 Correct 9 ms 14400 KB Output is correct
47 Correct 9 ms 14412 KB Output is correct
48 Correct 10 ms 14392 KB Output is correct
49 Correct 10 ms 14412 KB Output is correct
50 Correct 12 ms 14440 KB Output is correct

Subtask #3
15.0 / 15.0

# 결과 실행 시간 메모리 Grader output
1 Correct 9 ms 14396 KB Output is correct
2 Correct 8 ms 14420 KB Output is correct
3 Correct 9 ms 14400 KB Output is correct
4 Correct 8 ms 14412 KB Output is correct
5 Correct 9 ms 14412 KB Output is correct
6 Correct 10 ms 14412 KB Output is correct
7 Correct 8 ms 14392 KB Output is correct
8 Correct 8 ms 14380 KB Output is correct
9 Correct 11 ms 14396 KB Output is correct
10 Correct 9 ms 14412 KB Output is correct
11 Correct 10 ms 14412 KB Output is correct
12 Correct 9 ms 14396 KB Output is correct
13 Correct 8 ms 14396 KB Output is correct
14 Correct 10 ms 14444 KB Output is correct
15 Correct 9 ms 14412 KB Output is correct
16 Correct 9 ms 14392 KB Output is correct
17 Correct 8 ms 14404 KB Output is correct
18 Correct 8 ms 14412 KB Output is correct
19 Correct 8 ms 14400 KB Output is correct
20 Correct 8 ms 14384 KB Output is correct
21 Correct 9 ms 14400 KB Output is correct
22 Correct 9 ms 14412 KB Output is correct
23 Correct 9 ms 14412 KB Output is correct
24 Correct 9 ms 14412 KB Output is correct
25 Correct 9 ms 14364 KB Output is correct
26 Correct 9 ms 14412 KB Output is correct
27 Correct 9 ms 14412 KB Output is correct
28 Correct 9 ms 14392 KB Output is correct
29 Correct 9 ms 14412 KB Output is correct
30 Correct 9 ms 14412 KB Output is correct
31 Correct 9 ms 14348 KB Output is correct
32 Correct 10 ms 14396 KB Output is correct
33 Correct 9 ms 14352 KB Output is correct
34 Correct 10 ms 14412 KB Output is correct
35 Correct 10 ms 14412 KB Output is correct
36 Correct 9 ms 14340 KB Output is correct
37 Correct 9 ms 14448 KB Output is correct
38 Correct 9 ms 14412 KB Output is correct
39 Correct 9 ms 14400 KB Output is correct
40 Correct 9 ms 14396 KB Output is correct
41 Correct 9 ms 14404 KB Output is correct
42 Correct 9 ms 14396 KB Output is correct
43 Correct 9 ms 14412 KB Output is correct
44 Correct 8 ms 14412 KB Output is correct
45 Correct 9 ms 14388 KB Output is correct
46 Correct 9 ms 14400 KB Output is correct
47 Correct 9 ms 14412 KB Output is correct
48 Correct 10 ms 14392 KB Output is correct
49 Correct 10 ms 14412 KB Output is correct
50 Correct 12 ms 14440 KB Output is correct
51 Correct 10 ms 14540 KB Output is correct
52 Correct 11 ms 14668 KB Output is correct
53 Correct 11 ms 14788 KB Output is correct
54 Correct 10 ms 14668 KB Output is correct
55 Correct 11 ms 14628 KB Output is correct
56 Correct 11 ms 14668 KB Output is correct
57 Correct 11 ms 14540 KB Output is correct
58 Correct 11 ms 14668 KB Output is correct
59 Correct 12 ms 14660 KB Output is correct
60 Correct 10 ms 14532 KB Output is correct
61 Correct 12 ms 15104 KB Output is correct
62 Correct 13 ms 15164 KB Output is correct
63 Correct 11 ms 14544 KB Output is correct
64 Correct 10 ms 14536 KB Output is correct
65 Correct 10 ms 14464 KB Output is correct
66 Correct 11 ms 14660 KB Output is correct
67 Correct 10 ms 14668 KB Output is correct
68 Correct 11 ms 14636 KB Output is correct
69 Correct 12 ms 14788 KB Output is correct
70 Correct 10 ms 14536 KB Output is correct

Subtask #4
41.0 / 41.0

# 결과 실행 시간 메모리 Grader output
1 Correct 9 ms 14396 KB Output is correct
2 Correct 8 ms 14420 KB Output is correct
3 Correct 9 ms 14400 KB Output is correct
4 Correct 8 ms 14412 KB Output is correct
5 Correct 9 ms 14412 KB Output is correct
6 Correct 10 ms 14412 KB Output is correct
7 Correct 8 ms 14392 KB Output is correct
8 Correct 8 ms 14380 KB Output is correct
9 Correct 11 ms 14396 KB Output is correct
10 Correct 9 ms 14412 KB Output is correct
11 Correct 10 ms 14412 KB Output is correct
12 Correct 9 ms 14396 KB Output is correct
13 Correct 8 ms 14396 KB Output is correct
14 Correct 10 ms 14444 KB Output is correct
15 Correct 9 ms 14412 KB Output is correct
16 Correct 9 ms 14392 KB Output is correct
17 Correct 8 ms 14404 KB Output is correct
18 Correct 8 ms 14412 KB Output is correct
19 Correct 8 ms 14400 KB Output is correct
20 Correct 8 ms 14384 KB Output is correct
21 Correct 9 ms 14400 KB Output is correct
22 Correct 9 ms 14412 KB Output is correct
23 Correct 9 ms 14412 KB Output is correct
24 Correct 9 ms 14412 KB Output is correct
25 Correct 9 ms 14364 KB Output is correct
26 Correct 9 ms 14412 KB Output is correct
27 Correct 9 ms 14412 KB Output is correct
28 Correct 9 ms 14392 KB Output is correct
29 Correct 9 ms 14412 KB Output is correct
30 Correct 9 ms 14412 KB Output is correct
31 Correct 9 ms 14348 KB Output is correct
32 Correct 10 ms 14396 KB Output is correct
33 Correct 9 ms 14352 KB Output is correct
34 Correct 10 ms 14412 KB Output is correct
35 Correct 10 ms 14412 KB Output is correct
36 Correct 9 ms 14340 KB Output is correct
37 Correct 9 ms 14448 KB Output is correct
38 Correct 9 ms 14412 KB Output is correct
39 Correct 9 ms 14400 KB Output is correct
40 Correct 9 ms 14396 KB Output is correct
41 Correct 9 ms 14404 KB Output is correct
42 Correct 9 ms 14396 KB Output is correct
43 Correct 9 ms 14412 KB Output is correct
44 Correct 8 ms 14412 KB Output is correct
45 Correct 9 ms 14388 KB Output is correct
46 Correct 9 ms 14400 KB Output is correct
47 Correct 9 ms 14412 KB Output is correct
48 Correct 10 ms 14392 KB Output is correct
49 Correct 10 ms 14412 KB Output is correct
50 Correct 12 ms 14440 KB Output is correct
51 Correct 10 ms 14540 KB Output is correct
52 Correct 11 ms 14668 KB Output is correct
53 Correct 11 ms 14788 KB Output is correct
54 Correct 10 ms 14668 KB Output is correct
55 Correct 11 ms 14628 KB Output is correct
56 Correct 11 ms 14668 KB Output is correct
57 Correct 11 ms 14540 KB Output is correct
58 Correct 11 ms 14668 KB Output is correct
59 Correct 12 ms 14660 KB Output is correct
60 Correct 10 ms 14532 KB Output is correct
61 Correct 12 ms 15104 KB Output is correct
62 Correct 13 ms 15164 KB Output is correct
63 Correct 11 ms 14544 KB Output is correct
64 Correct 10 ms 14536 KB Output is correct
65 Correct 10 ms 14464 KB Output is correct
66 Correct 11 ms 14660 KB Output is correct
67 Correct 10 ms 14668 KB Output is correct
68 Correct 11 ms 14636 KB Output is correct
69 Correct 12 ms 14788 KB Output is correct
70 Correct 10 ms 14536 KB Output is correct
71 Correct 41 ms 18756 KB Output is correct
72 Correct 40 ms 18020 KB Output is correct
73 Correct 28 ms 17548 KB Output is correct
74 Correct 44 ms 21828 KB Output is correct
75 Correct 49 ms 21184 KB Output is correct
76 Correct 357 ms 63704 KB Output is correct
77 Correct 435 ms 49728 KB Output is correct
78 Correct 257 ms 31292 KB Output is correct
79 Correct 325 ms 54456 KB Output is correct
80 Correct 367 ms 47528 KB Output is correct
81 Correct 37 ms 18732 KB Output is correct
82 Correct 45 ms 17936 KB Output is correct
83 Correct 25 ms 17676 KB Output is correct
84 Correct 43 ms 21388 KB Output is correct
85 Correct 44 ms 21240 KB Output is correct
86 Correct 295 ms 57576 KB Output is correct
87 Correct 284 ms 57644 KB Output is correct
88 Correct 210 ms 31276 KB Output is correct
89 Correct 305 ms 52808 KB Output is correct
90 Correct 334 ms 47952 KB Output is correct