oj.uz

답안 #550261

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
550261 2022-04-17T19:01:13 Z Antekb 수도 (JOI20_capital_city) C++14
41 / 100
 3000 ms 38204 KB 
#include<bits/stdc++.h>
using namespace std;
const int N=2e5+5;
int blo[N], col[N], par[N], vis[N], typ[N];
vector<int> co[N];
vector<int> E[N];
void color(int v, int p, int c){
	col[v]=c;
	for(int u:E[v]){
		if(!blo[u] && u!=p){
			color(u, v, c);
		}
	}
}
void dfs(int v){
	//cout<<v<<" "<<par[v]<<col[v]<<" "<<typ[v]<<"q\n";
	for(int u:E[v]){
		if(u!=par[v] && !blo[u]){
			par[u]=v;
			dfs(u);
		}
	}
}
int wsk=1;
int ans=N;
void solve(int v, int id){
	//cout<<v<<" "<<id<<"\n";
	/*for(int u=1; u<=12; u++)if(col[u]==id){
		assert(!blo[u]);
		cout<<u<<" ";
	}
		cout<<"\n";*/
	par[v]=0;
	dfs(v);
	vector<int> V;
	V.push_back(typ[v]);
	vis[typ[v]]=1;
	for(int i=0; i<V.size(); i++){
		int c=V[i];
		for(int v:co[c]){
			//cout<<v<<" "<<col[v]<<" "<<typ[v]<<"\n";
			if(col[v]!=id){
				for(int u:V)vis[u]=0;
				return;
			}
			if(par[v] && !vis[typ[par[v]]]){
				vis[typ[par[v]]]=1;
				V.push_back(typ[par[v]]);
			}
		}
	}
	//cout<<V.size()<<"\n";
	ans=min(ans, (int)V.size());
	for(int u:V)vis[u]=0;
}
mt19937 rng(chrono::high_resolution_clock::now().time_since_epoch().count());
int main(){
	int n, k;
	cin>>n>>k;
	for(int i=1; i<n; i++){
		int u, v;
		cin>>u>>v;
		E[u].push_back(v);
		E[v].push_back(u);
	}
	for(int i=1; i<=n; i++){
		cin>>typ[i];
		co[typ[i]].push_back(i);
	}
	vector<int> kol;
	for(int i=1; i<=n; i++)kol.push_back(i);
	shuffle(kol.begin(), kol.end(), rng);
	for(int i:kol){
		solve(i, col[i]);
		blo[i]=1;
		for(int u:E[i])if(!blo[u])color(u, i, wsk++);
	}
	cout<<ans-1<<"\n";
}

Compilation message

capital_city.cpp: In function 'void solve(int, int)':
capital_city.cpp:38:16: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   38 |  for(int i=0; i<V.size(); i++){
      |               ~^~~~~~~~~

Subtask #1
1.0 / 1.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 9684 KB Output is correct
2 Correct 5 ms 9684 KB Output is correct
3 Correct 6 ms 9684 KB Output is correct
4 Correct 6 ms 9684 KB Output is correct
5 Correct 5 ms 9684 KB Output is correct
6 Correct 5 ms 9604 KB Output is correct
7 Correct 5 ms 9676 KB Output is correct
8 Correct 7 ms 9708 KB Output is correct
9 Correct 5 ms 9684 KB Output is correct
10 Correct 5 ms 9684 KB Output is correct

Subtask #2
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 9684 KB Output is correct
2 Correct 5 ms 9684 KB Output is correct
3 Correct 6 ms 9684 KB Output is correct
4 Correct 6 ms 9684 KB Output is correct
5 Correct 5 ms 9684 KB Output is correct
6 Correct 5 ms 9604 KB Output is correct
7 Correct 5 ms 9676 KB Output is correct
8 Correct 7 ms 9708 KB Output is correct
9 Correct 5 ms 9684 KB Output is correct
10 Correct 5 ms 9684 KB Output is correct
11 Correct 19 ms 9812 KB Output is correct
12 Correct 17 ms 9852 KB Output is correct
13 Correct 21 ms 9876 KB Output is correct
14 Correct 23 ms 9848 KB Output is correct
15 Correct 9 ms 9844 KB Output is correct
16 Correct 9 ms 9812 KB Output is correct
17 Correct 9 ms 9812 KB Output is correct
18 Correct 12 ms 9940 KB Output is correct
19 Correct 12 ms 9912 KB Output is correct
20 Correct 13 ms 9820 KB Output is correct
21 Correct 9 ms 9940 KB Output is correct
22 Correct 9 ms 9940 KB Output is correct
23 Correct 8 ms 9940 KB Output is correct
24 Correct 10 ms 9812 KB Output is correct
25 Correct 8 ms 9940 KB Output is correct
26 Correct 9 ms 9940 KB Output is correct
27 Correct 9 ms 9980 KB Output is correct
28 Correct 9 ms 9940 KB Output is correct
29 Correct 8 ms 9904 KB Output is correct
30 Correct 8 ms 9848 KB Output is correct

Subtask #3
30.0 / 30.0

# 결과 실행 시간 메모리 Grader output
1 Correct 794 ms 31656 KB Output is correct
2 Correct 399 ms 31716 KB Output is correct
3 Correct 780 ms 36244 KB Output is correct
4 Correct 430 ms 31532 KB Output is correct
5 Correct 869 ms 35572 KB Output is correct
6 Correct 397 ms 34572 KB Output is correct
7 Correct 733 ms 29708 KB Output is correct
8 Correct 397 ms 29592 KB Output is correct
9 Correct 1010 ms 34820 KB Output is correct
10 Correct 943 ms 35240 KB Output is correct
11 Correct 980 ms 36968 KB Output is correct
12 Correct 934 ms 32956 KB Output is correct
13 Correct 881 ms 32956 KB Output is correct
14 Correct 904 ms 34900 KB Output is correct
15 Correct 897 ms 35120 KB Output is correct
16 Correct 929 ms 33076 KB Output is correct
17 Correct 971 ms 37672 KB Output is correct
18 Correct 993 ms 38204 KB Output is correct
19 Correct 954 ms 33672 KB Output is correct
20 Correct 979 ms 34804 KB Output is correct
21 Correct 5 ms 9716 KB Output is correct

Subtask #4
0 / 59.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 9684 KB Output is correct
2 Correct 5 ms 9684 KB Output is correct
3 Correct 6 ms 9684 KB Output is correct
4 Correct 6 ms 9684 KB Output is correct
5 Correct 5 ms 9684 KB Output is correct
6 Correct 5 ms 9604 KB Output is correct
7 Correct 5 ms 9676 KB Output is correct
8 Correct 7 ms 9708 KB Output is correct
9 Correct 5 ms 9684 KB Output is correct
10 Correct 5 ms 9684 KB Output is correct
11 Correct 19 ms 9812 KB Output is correct
12 Correct 17 ms 9852 KB Output is correct
13 Correct 21 ms 9876 KB Output is correct
14 Correct 23 ms 9848 KB Output is correct
15 Correct 9 ms 9844 KB Output is correct
16 Correct 9 ms 9812 KB Output is correct
17 Correct 9 ms 9812 KB Output is correct
18 Correct 12 ms 9940 KB Output is correct
19 Correct 12 ms 9912 KB Output is correct
20 Correct 13 ms 9820 KB Output is correct
21 Correct 9 ms 9940 KB Output is correct
22 Correct 9 ms 9940 KB Output is correct
23 Correct 8 ms 9940 KB Output is correct
24 Correct 10 ms 9812 KB Output is correct
25 Correct 8 ms 9940 KB Output is correct
26 Correct 9 ms 9940 KB Output is correct
27 Correct 9 ms 9980 KB Output is correct
28 Correct 9 ms 9940 KB Output is correct
29 Correct 8 ms 9904 KB Output is correct
30 Correct 8 ms 9848 KB Output is correct
31 Correct 794 ms 31656 KB Output is correct
32 Correct 399 ms 31716 KB Output is correct
33 Correct 780 ms 36244 KB Output is correct
34 Correct 430 ms 31532 KB Output is correct
35 Correct 869 ms 35572 KB Output is correct
36 Correct 397 ms 34572 KB Output is correct
37 Correct 733 ms 29708 KB Output is correct
38 Correct 397 ms 29592 KB Output is correct
39 Correct 1010 ms 34820 KB Output is correct
40 Correct 943 ms 35240 KB Output is correct
41 Correct 980 ms 36968 KB Output is correct
42 Correct 934 ms 32956 KB Output is correct
43 Correct 881 ms 32956 KB Output is correct
44 Correct 904 ms 34900 KB Output is correct
45 Correct 897 ms 35120 KB Output is correct
46 Correct 929 ms 33076 KB Output is correct
47 Correct 971 ms 37672 KB Output is correct
48 Correct 993 ms 38204 KB Output is correct
49 Correct 954 ms 33672 KB Output is correct
50 Correct 979 ms 34804 KB Output is correct
51 Correct 5 ms 9716 KB Output is correct
52 Execution timed out 3069 ms 24944 KB Time limit exceeded
53 Halted 0 ms 0 KB -