답안 #821607

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
821607	2023-08-11T12:02:11 Z	alvingogo	열쇠 (IOI21_keys)	C++17	100 / 100	354 ms	118860 KB

keys

/* 
hack test:
11 13
0 1 2 3 3 3 3 3 3 2 1
1 10 1
10 0 1
0 2 1
2 9 2
9 0 2
2 3 1
3 4 3
4 5 3
5 6 3
6 7 3
7 8 3
8 3 3
0 1 0

*/
#include <bits/stdc++.h>
#pragma GCC optimize("Ofast,unroll-loops")
#define fs first
#define sc second
#define p_q priority_queue
using namespace std;

struct DSU{
	vector<int> bo;
	void init(int n){
		bo.resize(n);
		iota(bo.begin(),bo.end(),0);
	}
	int find(int x){
		return bo[x]==x?x:bo[x]=find(bo[x]);
	}
	void merge(int x,int y){
		bo[x]=y;
	}
}dsu;
vector<int> r,dfn,low,out,inv;
vector<vector<int> > nw;
vector<vector<pair<int,int> > > e;
vector<vector<pair<int,int> > > st;
int cnt=1;
void dfs(int a,int f){
	dfn[a]=low[a]=out[a]=cnt;
	inv[cnt]=a;
	cnt++;
	for(auto h:e[a]){
		st[h.fs].push_back({a,h.sc});
	}
	for(auto h:st[r[a]]){
		nw[dsu.find(h.fs)].push_back(h.sc);
	}
	st[r[a]].clear();
	while(nw[a].size()){
		auto h=nw[a].back();
		nw[a].pop_back();
		if(dfn[h]){
			low[a]=min(low[a],dfn[h]);
			continue;
		}
		dfs(h,a);
		low[a]=min(low[a],low[h]);
		out[a]=out[h];
		for(auto h:st[r[a]]){
			nw[dsu.find(h.fs)].push_back(h.sc);
		}
		st[r[a]].clear();
	}
	dsu.merge(a,f);
}
vector<int> find_reachable(vector<int> R, vector<int> u, vector<int> v, vector<int> c) {
	int n=R.size();
	int m=u.size();
	dsu.init(n);
	e.resize(n);
	dfn.resize(n);
	low.resize(n);
	nw.resize(n);
	out.resize(n);
	inv.resize(n+1);
	st.resize(n);
	r=R;
	for(int i=0;i<m;i++){
		e[u[i]].push_back({c[i],v[i]});
		e[v[i]].push_back({c[i],u[i]});
	}
	for(int i=0;i<n;i++){
		if(!dfn[i]){
			dfs(i,i);
		}
	}
	int mn=1e9;
	for(int i=0;i<n;i++){
		if(dfn[i]==low[i]){
			mn=min(mn,out[i]-dfn[i]+1);
		}
	}
	vector<int> ans(n);
	for(int i=0;i<n;i++){
		if(dfn[i]==low[i]){
			if(out[i]-dfn[i]+1==mn){
				for(int j=dfn[i];j<=out[i];j++){
					ans[inv[j]]=1;
				}
			}
		}
	}
	return ans;
}

Subtask #1
9.0 / 9.0

#	결과	메모리	Grader output
1	Correct	212 KB	Output is correct
2	Correct	212 KB	Output is correct
3	Correct	212 KB	Output is correct
4	Correct	212 KB	Output is correct
5	Correct	212 KB	Output is correct
6	Correct	212 KB	Output is correct
7	Correct	212 KB	Output is correct
8	Correct	212 KB	Output is correct
9	Correct	340 KB	Output is correct

Subtask #2
11.0 / 11.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	212 KB	Output is correct
2	Correct	0 ms	212 KB	Output is correct
3	Correct	0 ms	212 KB	Output is correct
4	Correct	0 ms	212 KB	Output is correct
5	Correct	0 ms	212 KB	Output is correct
6	Correct	0 ms	212 KB	Output is correct
7	Correct	0 ms	212 KB	Output is correct
8	Correct	0 ms	212 KB	Output is correct
9	Correct	0 ms	340 KB	Output is correct
10	Correct	0 ms	340 KB	Output is correct
11	Correct	0 ms	212 KB	Output is correct
12	Correct	1 ms	340 KB	Output is correct
13	Correct	0 ms	284 KB	Output is correct
14	Correct	0 ms	212 KB	Output is correct
15	Correct	0 ms	340 KB	Output is correct
16	Correct	0 ms	212 KB	Output is correct
17	Correct	1 ms	212 KB	Output is correct
18	Correct	1 ms	212 KB	Output is correct
19	Correct	1 ms	212 KB	Output is correct
20	Correct	0 ms	212 KB	Output is correct
21	Correct	1 ms	340 KB	Output is correct
22	Correct	1 ms	212 KB	Output is correct
23	Correct	0 ms	340 KB	Output is correct
24	Correct	0 ms	340 KB	Output is correct
25	Correct	1 ms	340 KB	Output is correct
26	Correct	0 ms	340 KB	Output is correct

Subtask #3
17.0 / 17.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	212 KB	Output is correct
2	Correct	0 ms	212 KB	Output is correct
3	Correct	0 ms	212 KB	Output is correct
4	Correct	0 ms	212 KB	Output is correct
5	Correct	0 ms	212 KB	Output is correct
6	Correct	0 ms	212 KB	Output is correct
7	Correct	0 ms	212 KB	Output is correct
8	Correct	0 ms	212 KB	Output is correct
9	Correct	0 ms	340 KB	Output is correct
10	Correct	0 ms	340 KB	Output is correct
11	Correct	0 ms	212 KB	Output is correct
12	Correct	1 ms	340 KB	Output is correct
13	Correct	0 ms	284 KB	Output is correct
14	Correct	0 ms	212 KB	Output is correct
15	Correct	0 ms	340 KB	Output is correct
16	Correct	0 ms	212 KB	Output is correct
17	Correct	1 ms	212 KB	Output is correct
18	Correct	1 ms	212 KB	Output is correct
19	Correct	1 ms	212 KB	Output is correct
20	Correct	0 ms	212 KB	Output is correct
21	Correct	1 ms	340 KB	Output is correct
22	Correct	1 ms	212 KB	Output is correct
23	Correct	0 ms	340 KB	Output is correct
24	Correct	0 ms	340 KB	Output is correct
25	Correct	1 ms	340 KB	Output is correct
26	Correct	0 ms	340 KB	Output is correct
27	Correct	2 ms	724 KB	Output is correct
28	Correct	2 ms	724 KB	Output is correct
29	Correct	2 ms	852 KB	Output is correct
30	Correct	1 ms	468 KB	Output is correct
31	Correct	1 ms	468 KB	Output is correct
32	Correct	1 ms	340 KB	Output is correct
33	Correct	1 ms	340 KB	Output is correct
34	Correct	1 ms	596 KB	Output is correct
35	Correct	1 ms	596 KB	Output is correct
36	Correct	1 ms	852 KB	Output is correct
37	Correct	1 ms	852 KB	Output is correct
38	Correct	2 ms	980 KB	Output is correct
39	Correct	2 ms	1108 KB	Output is correct
40	Correct	1 ms	468 KB	Output is correct
41	Correct	1 ms	468 KB	Output is correct

Subtask #4
30.0 / 30.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	212 KB	Output is correct
2	Correct	0 ms	212 KB	Output is correct
3	Correct	0 ms	212 KB	Output is correct
4	Correct	0 ms	212 KB	Output is correct
5	Correct	0 ms	212 KB	Output is correct
6	Correct	0 ms	212 KB	Output is correct
7	Correct	0 ms	212 KB	Output is correct
8	Correct	0 ms	212 KB	Output is correct
9	Correct	0 ms	340 KB	Output is correct
10	Correct	173 ms	38300 KB	Output is correct
11	Correct	282 ms	63844 KB	Output is correct
12	Correct	29 ms	10452 KB	Output is correct
13	Correct	206 ms	52576 KB	Output is correct
14	Correct	169 ms	118860 KB	Output is correct

Subtask #5
33.0 / 33.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	212 KB	Output is correct
2	Correct	0 ms	212 KB	Output is correct
3	Correct	0 ms	212 KB	Output is correct
4	Correct	0 ms	212 KB	Output is correct
5	Correct	0 ms	212 KB	Output is correct
6	Correct	0 ms	212 KB	Output is correct
7	Correct	0 ms	212 KB	Output is correct
8	Correct	0 ms	212 KB	Output is correct
9	Correct	0 ms	340 KB	Output is correct
10	Correct	0 ms	340 KB	Output is correct
11	Correct	0 ms	212 KB	Output is correct
12	Correct	1 ms	340 KB	Output is correct
13	Correct	0 ms	284 KB	Output is correct
14	Correct	0 ms	212 KB	Output is correct
15	Correct	0 ms	340 KB	Output is correct
16	Correct	0 ms	212 KB	Output is correct
17	Correct	1 ms	212 KB	Output is correct
18	Correct	1 ms	212 KB	Output is correct
19	Correct	1 ms	212 KB	Output is correct
20	Correct	0 ms	212 KB	Output is correct
21	Correct	1 ms	340 KB	Output is correct
22	Correct	1 ms	212 KB	Output is correct
23	Correct	0 ms	340 KB	Output is correct
24	Correct	0 ms	340 KB	Output is correct
25	Correct	1 ms	340 KB	Output is correct
26	Correct	0 ms	340 KB	Output is correct
27	Correct	2 ms	724 KB	Output is correct
28	Correct	2 ms	724 KB	Output is correct
29	Correct	2 ms	852 KB	Output is correct
30	Correct	1 ms	468 KB	Output is correct
31	Correct	1 ms	468 KB	Output is correct
32	Correct	1 ms	340 KB	Output is correct
33	Correct	1 ms	340 KB	Output is correct
34	Correct	1 ms	596 KB	Output is correct
35	Correct	1 ms	596 KB	Output is correct
36	Correct	1 ms	852 KB	Output is correct
37	Correct	1 ms	852 KB	Output is correct
38	Correct	2 ms	980 KB	Output is correct
39	Correct	2 ms	1108 KB	Output is correct
40	Correct	1 ms	468 KB	Output is correct
41	Correct	1 ms	468 KB	Output is correct
42	Correct	173 ms	38300 KB	Output is correct
43	Correct	282 ms	63844 KB	Output is correct
44	Correct	29 ms	10452 KB	Output is correct
45	Correct	206 ms	52576 KB	Output is correct
46	Correct	169 ms	118860 KB	Output is correct
47	Correct	0 ms	212 KB	Output is correct
48	Correct	0 ms	212 KB	Output is correct
49	Correct	0 ms	212 KB	Output is correct
50	Correct	146 ms	91276 KB	Output is correct
51	Correct	174 ms	89840 KB	Output is correct
52	Correct	240 ms	48104 KB	Output is correct
53	Correct	207 ms	48460 KB	Output is correct
54	Correct	242 ms	60400 KB	Output is correct
55	Correct	191 ms	46144 KB	Output is correct
56	Correct	354 ms	70916 KB	Output is correct
57	Correct	201 ms	65512 KB	Output is correct
58	Correct	305 ms	70748 KB	Output is correct
59	Correct	351 ms	72996 KB	Output is correct
60	Correct	347 ms	91840 KB	Output is correct
61	Correct	324 ms	93284 KB	Output is correct
62	Correct	243 ms	40556 KB	Output is correct
63	Correct	123 ms	45160 KB	Output is correct
64	Correct	3 ms	2260 KB	Output is correct
65	Correct	3 ms	2260 KB	Output is correct
66	Correct	209 ms	40808 KB	Output is correct
67	Correct	17 ms	12160 KB	Output is correct
68	Correct	28 ms	20032 KB	Output is correct
69	Correct	328 ms	73548 KB	Output is correct
70	Correct	59 ms	39836 KB	Output is correct
71	Correct	194 ms	118860 KB	Output is correct
72	Correct	327 ms	73628 KB	Output is correct
73	Correct	209 ms	40796 KB	Output is correct

답안 #821607

Compilation message

Subtask #1 9.0 / 9.0

Subtask #2 11.0 / 11.0

Subtask #3 17.0 / 17.0

Subtask #4 30.0 / 30.0

Subtask #5 33.0 / 33.0

Subtask #1
9.0 / 9.0

Subtask #2
11.0 / 11.0

Subtask #3
17.0 / 17.0

Subtask #4
30.0 / 30.0

Subtask #5
33.0 / 33.0