oj.uz

답안 #894630

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
894630 2023-12-28T14:38:52 Z amirhoseinfar1385 수도 (JOI20_capital_city) C++17
100 / 100
 617 ms 36576 KB 
#include<bits/stdc++.h>
using namespace std;
const int maxn=200000+10;
vector<int>adj[maxn],allc[maxn];
int n,k,val[maxn],sz[maxn],part[maxn],visc[maxn],vis[maxn],now[maxn],rishe,res;
void calsz(int u,int par=0){
	now[u]=rishe;
	part[u]=par;
	visc[val[u]]=0;
	sz[u]=1;
	for(auto x:adj[u]){
		if(vis[x]==0&&x!=par){
			calsz(x,u);
			sz[u]+=sz[x];
		}
	}
}
int findcen(int u,int su,int par=0){
	for(auto x:adj[u]){
		if(vis[x]==0&&x!=par&&sz[x]*2>su){
			return findcen(x,su,u);
		}
	}
	return u;
}
void solve(int u){
	if(now[u]==-rishe){
		return ;
	}
	if(now[u]!=rishe){
		res=n+2;
		return ;
	}
	if(visc[val[u]]==0){
		res++;
		visc[val[u]]=1;
		for(auto x:allc[val[u]]){
			solve(x);
			if(res>n){
				return ;
			}
		}
	}
	now[u]=-rishe;
	solve(part[u]);
}
int cent(int u){
	int ret=n+1;
	calsz(u);
	int v=findcen(u,sz[u]);
	rishe=v;
	calsz(v,v);
	res=0;
	solve(v);
	ret=min(ret,res);
	vis[v]=1;
	for(auto x:adj[v]){
		if(vis[x]==0){
			ret=min(ret,cent(x));
		}
	}
	return ret;
}
int main(){
	ios::sync_with_stdio(0);
	cin.tie(0);
	cout.tie(0);
	cin>>n>>k;
	for(int i=0;i<n-1;i++){
		int u,v;
		cin>>u>>v;
		adj[u].push_back(v);adj[v].push_back(u);
	}
	for(int i=1;i<=n;i++){
		cin>>val[i];allc[val[i]].push_back(i);
	}
	cout<<(cent(1)-1)<<endl;
}

Subtask #1
1.0 / 1.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 14168 KB Output is correct
2 Correct 3 ms 14172 KB Output is correct
3 Correct 3 ms 14172 KB Output is correct
4 Correct 3 ms 14168 KB Output is correct
5 Correct 3 ms 14368 KB Output is correct
6 Correct 4 ms 14172 KB Output is correct
7 Correct 4 ms 14172 KB Output is correct
8 Correct 3 ms 14172 KB Output is correct
9 Correct 4 ms 14172 KB Output is correct
10 Correct 3 ms 14168 KB Output is correct

Subtask #2
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 14168 KB Output is correct
2 Correct 3 ms 14172 KB Output is correct
3 Correct 3 ms 14172 KB Output is correct
4 Correct 3 ms 14168 KB Output is correct
5 Correct 3 ms 14368 KB Output is correct
6 Correct 4 ms 14172 KB Output is correct
7 Correct 4 ms 14172 KB Output is correct
8 Correct 3 ms 14172 KB Output is correct
9 Correct 4 ms 14172 KB Output is correct
10 Correct 3 ms 14168 KB Output is correct
11 Correct 4 ms 14428 KB Output is correct
12 Correct 5 ms 14428 KB Output is correct
13 Correct 4 ms 14424 KB Output is correct
14 Correct 4 ms 14428 KB Output is correct
15 Correct 5 ms 14428 KB Output is correct
16 Correct 5 ms 14428 KB Output is correct
17 Correct 5 ms 14324 KB Output is correct
18 Correct 5 ms 14428 KB Output is correct
19 Correct 5 ms 14428 KB Output is correct
20 Correct 3 ms 14428 KB Output is correct
21 Correct 4 ms 14396 KB Output is correct
22 Correct 4 ms 14428 KB Output is correct
23 Correct 4 ms 14428 KB Output is correct
24 Correct 4 ms 14428 KB Output is correct
25 Correct 6 ms 14428 KB Output is correct
26 Correct 4 ms 14428 KB Output is correct
27 Correct 4 ms 14680 KB Output is correct
28 Correct 4 ms 14428 KB Output is correct
29 Correct 7 ms 14428 KB Output is correct
30 Correct 4 ms 14428 KB Output is correct

Subtask #3
30.0 / 30.0

# 결과 실행 시간 메모리 Grader output
1 Correct 268 ms 35928 KB Output is correct
2 Correct 141 ms 36432 KB Output is correct
3 Correct 374 ms 35780 KB Output is correct
4 Correct 132 ms 36292 KB Output is correct
5 Correct 359 ms 33292 KB Output is correct
6 Correct 136 ms 36408 KB Output is correct
7 Correct 319 ms 33364 KB Output is correct
8 Correct 153 ms 36040 KB Output is correct
9 Correct 412 ms 32084 KB Output is correct
10 Correct 406 ms 30060 KB Output is correct
11 Correct 423 ms 32520 KB Output is correct
12 Correct 475 ms 34516 KB Output is correct
13 Correct 554 ms 29708 KB Output is correct
14 Correct 448 ms 34752 KB Output is correct
15 Correct 574 ms 34548 KB Output is correct
16 Correct 488 ms 30564 KB Output is correct
17 Correct 433 ms 31044 KB Output is correct
18 Correct 498 ms 31092 KB Output is correct
19 Correct 395 ms 33504 KB Output is correct
20 Correct 617 ms 35508 KB Output is correct
21 Correct 3 ms 14172 KB Output is correct

Subtask #4
59.0 / 59.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 14168 KB Output is correct
2 Correct 3 ms 14172 KB Output is correct
3 Correct 3 ms 14172 KB Output is correct
4 Correct 3 ms 14168 KB Output is correct
5 Correct 3 ms 14368 KB Output is correct
6 Correct 4 ms 14172 KB Output is correct
7 Correct 4 ms 14172 KB Output is correct
8 Correct 3 ms 14172 KB Output is correct
9 Correct 4 ms 14172 KB Output is correct
10 Correct 3 ms 14168 KB Output is correct
11 Correct 4 ms 14428 KB Output is correct
12 Correct 5 ms 14428 KB Output is correct
13 Correct 4 ms 14424 KB Output is correct
14 Correct 4 ms 14428 KB Output is correct
15 Correct 5 ms 14428 KB Output is correct
16 Correct 5 ms 14428 KB Output is correct
17 Correct 5 ms 14324 KB Output is correct
18 Correct 5 ms 14428 KB Output is correct
19 Correct 5 ms 14428 KB Output is correct
20 Correct 3 ms 14428 KB Output is correct
21 Correct 4 ms 14396 KB Output is correct
22 Correct 4 ms 14428 KB Output is correct
23 Correct 4 ms 14428 KB Output is correct
24 Correct 4 ms 14428 KB Output is correct
25 Correct 6 ms 14428 KB Output is correct
26 Correct 4 ms 14428 KB Output is correct
27 Correct 4 ms 14680 KB Output is correct
28 Correct 4 ms 14428 KB Output is correct
29 Correct 7 ms 14428 KB Output is correct
30 Correct 4 ms 14428 KB Output is correct
31 Correct 268 ms 35928 KB Output is correct
32 Correct 141 ms 36432 KB Output is correct
33 Correct 374 ms 35780 KB Output is correct
34 Correct 132 ms 36292 KB Output is correct
35 Correct 359 ms 33292 KB Output is correct
36 Correct 136 ms 36408 KB Output is correct
37 Correct 319 ms 33364 KB Output is correct
38 Correct 153 ms 36040 KB Output is correct
39 Correct 412 ms 32084 KB Output is correct
40 Correct 406 ms 30060 KB Output is correct
41 Correct 423 ms 32520 KB Output is correct
42 Correct 475 ms 34516 KB Output is correct
43 Correct 554 ms 29708 KB Output is correct
44 Correct 448 ms 34752 KB Output is correct
45 Correct 574 ms 34548 KB Output is correct
46 Correct 488 ms 30564 KB Output is correct
47 Correct 433 ms 31044 KB Output is correct
48 Correct 498 ms 31092 KB Output is correct
49 Correct 395 ms 33504 KB Output is correct
50 Correct 617 ms 35508 KB Output is correct
51 Correct 3 ms 14172 KB Output is correct
52 Correct 344 ms 23744 KB Output is correct
53 Correct 339 ms 23736 KB Output is correct
54 Correct 400 ms 23736 KB Output is correct
55 Correct 248 ms 23592 KB Output is correct
56 Correct 273 ms 23732 KB Output is correct
57 Correct 326 ms 23632 KB Output is correct
58 Correct 347 ms 25476 KB Output is correct
59 Correct 275 ms 25956 KB Output is correct
60 Correct 331 ms 25268 KB Output is correct
61 Correct 340 ms 24984 KB Output is correct
62 Correct 166 ms 36436 KB Output is correct
63 Correct 146 ms 36432 KB Output is correct
64 Correct 148 ms 36264 KB Output is correct
65 Correct 144 ms 36236 KB Output is correct
66 Correct 177 ms 29388 KB Output is correct
67 Correct 224 ms 29420 KB Output is correct
68 Correct 222 ms 29488 KB Output is correct
69 Correct 194 ms 29388 KB Output is correct
70 Correct 325 ms 29384 KB Output is correct
71 Correct 298 ms 29480 KB Output is correct
72 Correct 190 ms 29424 KB Output is correct
73 Correct 225 ms 28772 KB Output is correct
74 Correct 275 ms 29272 KB Output is correct
75 Correct 285 ms 28880 KB Output is correct
76 Correct 294 ms 30288 KB Output is correct
77 Correct 394 ms 29012 KB Output is correct
78 Correct 406 ms 32980 KB Output is correct
79 Correct 374 ms 31308 KB Output is correct
80 Correct 529 ms 36576 KB Output is correct
81 Correct 374 ms 34128 KB Output is correct
82 Correct 495 ms 34320 KB Output is correct
83 Correct 506 ms 31568 KB Output is correct
84 Correct 469 ms 36400 KB Output is correct
85 Correct 541 ms 35192 KB Output is correct
86 Correct 531 ms 30796 KB Output is correct
87 Correct 609 ms 32232 KB Output is correct
88 Correct 396 ms 33636 KB Output is correct
89 Correct 357 ms 30388 KB Output is correct
90 Correct 404 ms 30324 KB Output is correct
91 Correct 418 ms 32332 KB Output is correct
92 Correct 314 ms 31504 KB Output is correct
93 Correct 483 ms 30816 KB Output is correct
94 Correct 323 ms 30388 KB Output is correct
95 Correct 324 ms 30948 KB Output is correct
96 Correct 378 ms 30544 KB Output is correct
97 Correct 397 ms 31528 KB Output is correct