답안 #283248

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
283248	2020-08-25T12:20:33 Z	jjaewon	산만한 고양이 (KOI17_cat)	C++14	100 / 100	441 ms	70068 KB

#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef pair<ll,ll> pll;
typedef pair<int,int> pii;
#define fi first
#define se second
#define endl '\n'
#define y1 holyshit
const int inf=0x3f3f3f3f;

int N,M,dep[300010],fu[300010],hf[300010],up[300010];
vector<int> edge[300010],ch[300010];

void dfs(int now,int prv){
	for(auto i:edge[now]) if(i!=prv){
		if(!dep[i]){
			dep[i]=dep[now]+1;
			ch[now].push_back(i);
			int t=fu[now];
			dfs(i,now);
			up[i]=fu[now]-t;
			fu[now]+=fu[i];
			hf[now]+=hf[i];
		}
		else if(dep[now]>dep[i]) fu[i]++, hf[now]++;
	}
}

int main(){
    ios_base::sync_with_stdio(0); cin.tie(0);
    cin>>N>>M;
    for(int i=0;i<M;i++){
    	int u,v; cin>>u>>v;
    	edge[u].push_back(v);
    	edge[v].push_back(u);
    }
    dep[1]=1; dfs(1,1);
    ll ans=0;
    for(int i=1;i<=N;i++){
    	bool flag=(M-N+1-hf[i]==0);
    	for(auto j:ch[i]) flag&=(hf[j]-up[j]<2&&fu[j]<1);
    	if(flag) ans+=i;
    }
    cout<<ans;
    return 0;
}

Subtask #1
12.0 / 12.0

#	결과	실행 시간	메모리	Grader output
1	Correct	10 ms	14464 KB	Output is correct
2	Correct	9 ms	14592 KB	Output is correct
3	Correct	9 ms	14464 KB	Output is correct
4	Correct	9 ms	14464 KB	Output is correct
5	Correct	12 ms	14976 KB	Output is correct
6	Correct	12 ms	14848 KB	Output is correct
7	Correct	12 ms	15232 KB	Output is correct
8	Correct	12 ms	14848 KB	Output is correct
9	Correct	13 ms	15360 KB	Output is correct
10	Correct	13 ms	15104 KB	Output is correct
11	Correct	12 ms	15360 KB	Output is correct
12	Correct	13 ms	15180 KB	Output is correct
13	Correct	11 ms	14976 KB	Output is correct
14	Correct	12 ms	14976 KB	Output is correct
15	Correct	10 ms	14464 KB	Output is correct
16	Correct	9 ms	14464 KB	Output is correct
17	Correct	10 ms	14464 KB	Output is correct
18	Correct	9 ms	14464 KB	Output is correct
19	Correct	9 ms	14464 KB	Output is correct
20	Correct	12 ms	15232 KB	Output is correct
21	Correct	13 ms	15232 KB	Output is correct
22	Correct	12 ms	15232 KB	Output is correct
23	Correct	11 ms	14848 KB	Output is correct
24	Correct	11 ms	14848 KB	Output is correct
25	Correct	11 ms	14464 KB	Output is correct

Subtask #2
10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	345 ms	37624 KB	Output is correct
2	Correct	340 ms	37752 KB	Output is correct
3	Correct	343 ms	37624 KB	Output is correct
4	Correct	328 ms	37880 KB	Output is correct
5	Correct	327 ms	37624 KB	Output is correct
6	Correct	323 ms	37624 KB	Output is correct
7	Correct	326 ms	37756 KB	Output is correct
8	Correct	327 ms	37624 KB	Output is correct
9	Correct	321 ms	37624 KB	Output is correct
10	Correct	326 ms	37880 KB	Output is correct
11	Correct	320 ms	38392 KB	Output is correct
12	Correct	322 ms	38392 KB	Output is correct
13	Correct	322 ms	38244 KB	Output is correct
14	Correct	331 ms	38296 KB	Output is correct
15	Correct	321 ms	38360 KB	Output is correct
16	Correct	328 ms	44216 KB	Output is correct
17	Correct	326 ms	45432 KB	Output is correct
18	Correct	336 ms	43000 KB	Output is correct
19	Correct	342 ms	44152 KB	Output is correct
20	Correct	344 ms	43000 KB	Output is correct
21	Correct	373 ms	40568 KB	Output is correct
22	Correct	343 ms	52216 KB	Output is correct
23	Correct	351 ms	57116 KB	Output is correct
24	Correct	340 ms	40952 KB	Output is correct
25	Correct	330 ms	54752 KB	Output is correct
26	Correct	158 ms	69936 KB	Output is correct

Subtask #3
23.0 / 23.0

#	결과	실행 시간	메모리	Grader output
1	Correct	163 ms	70008 KB	Output is correct
2	Correct	161 ms	70008 KB	Output is correct
3	Correct	158 ms	70008 KB	Output is correct
4	Correct	189 ms	69932 KB	Output is correct
5	Correct	161 ms	70068 KB	Output is correct
6	Correct	155 ms	69936 KB	Output is correct
7	Correct	180 ms	69980 KB	Output is correct
8	Correct	154 ms	69960 KB	Output is correct
9	Correct	157 ms	69944 KB	Output is correct
10	Correct	164 ms	61576 KB	Output is correct
11	Correct	169 ms	61532 KB	Output is correct
12	Correct	165 ms	61516 KB	Output is correct
13	Correct	197 ms	61560 KB	Output is correct
14	Correct	162 ms	61608 KB	Output is correct
15	Correct	174 ms	53056 KB	Output is correct
16	Correct	175 ms	52976 KB	Output is correct
17	Correct	170 ms	53100 KB	Output is correct
18	Correct	170 ms	52972 KB	Output is correct
19	Correct	169 ms	53104 KB	Output is correct

Subtask #4
55.0 / 55.0

#	결과	실행 시간	메모리	Grader output
1	Correct	10 ms	14464 KB	Output is correct
2	Correct	9 ms	14592 KB	Output is correct
3	Correct	9 ms	14464 KB	Output is correct
4	Correct	9 ms	14464 KB	Output is correct
5	Correct	12 ms	14976 KB	Output is correct
6	Correct	12 ms	14848 KB	Output is correct
7	Correct	12 ms	15232 KB	Output is correct
8	Correct	12 ms	14848 KB	Output is correct
9	Correct	13 ms	15360 KB	Output is correct
10	Correct	13 ms	15104 KB	Output is correct
11	Correct	12 ms	15360 KB	Output is correct
12	Correct	13 ms	15180 KB	Output is correct
13	Correct	11 ms	14976 KB	Output is correct
14	Correct	12 ms	14976 KB	Output is correct
15	Correct	10 ms	14464 KB	Output is correct
16	Correct	9 ms	14464 KB	Output is correct
17	Correct	10 ms	14464 KB	Output is correct
18	Correct	9 ms	14464 KB	Output is correct
19	Correct	9 ms	14464 KB	Output is correct
20	Correct	12 ms	15232 KB	Output is correct
21	Correct	13 ms	15232 KB	Output is correct
22	Correct	12 ms	15232 KB	Output is correct
23	Correct	11 ms	14848 KB	Output is correct
24	Correct	11 ms	14848 KB	Output is correct
25	Correct	11 ms	14464 KB	Output is correct
26	Correct	345 ms	37624 KB	Output is correct
27	Correct	340 ms	37752 KB	Output is correct
28	Correct	343 ms	37624 KB	Output is correct
29	Correct	328 ms	37880 KB	Output is correct
30	Correct	327 ms	37624 KB	Output is correct
31	Correct	323 ms	37624 KB	Output is correct
32	Correct	326 ms	37756 KB	Output is correct
33	Correct	327 ms	37624 KB	Output is correct
34	Correct	321 ms	37624 KB	Output is correct
35	Correct	326 ms	37880 KB	Output is correct
36	Correct	320 ms	38392 KB	Output is correct
37	Correct	322 ms	38392 KB	Output is correct
38	Correct	322 ms	38244 KB	Output is correct
39	Correct	331 ms	38296 KB	Output is correct
40	Correct	321 ms	38360 KB	Output is correct
41	Correct	328 ms	44216 KB	Output is correct
42	Correct	326 ms	45432 KB	Output is correct
43	Correct	336 ms	43000 KB	Output is correct
44	Correct	342 ms	44152 KB	Output is correct
45	Correct	344 ms	43000 KB	Output is correct
46	Correct	373 ms	40568 KB	Output is correct
47	Correct	343 ms	52216 KB	Output is correct
48	Correct	351 ms	57116 KB	Output is correct
49	Correct	340 ms	40952 KB	Output is correct
50	Correct	330 ms	54752 KB	Output is correct
51	Correct	158 ms	69936 KB	Output is correct
52	Correct	163 ms	70008 KB	Output is correct
53	Correct	161 ms	70008 KB	Output is correct
54	Correct	158 ms	70008 KB	Output is correct
55	Correct	189 ms	69932 KB	Output is correct
56	Correct	161 ms	70068 KB	Output is correct
57	Correct	155 ms	69936 KB	Output is correct
58	Correct	180 ms	69980 KB	Output is correct
59	Correct	154 ms	69960 KB	Output is correct
60	Correct	157 ms	69944 KB	Output is correct
61	Correct	164 ms	61576 KB	Output is correct
62	Correct	169 ms	61532 KB	Output is correct
63	Correct	165 ms	61516 KB	Output is correct
64	Correct	197 ms	61560 KB	Output is correct
65	Correct	162 ms	61608 KB	Output is correct
66	Correct	174 ms	53056 KB	Output is correct
67	Correct	175 ms	52976 KB	Output is correct
68	Correct	170 ms	53100 KB	Output is correct
69	Correct	170 ms	52972 KB	Output is correct
70	Correct	169 ms	53104 KB	Output is correct
71	Correct	430 ms	68164 KB	Output is correct
72	Correct	420 ms	65784 KB	Output is correct
73	Correct	427 ms	64888 KB	Output is correct
74	Correct	441 ms	67448 KB	Output is correct
75	Correct	419 ms	63448 KB	Output is correct
76	Correct	409 ms	63096 KB	Output is correct
77	Correct	401 ms	57188 KB	Output is correct
78	Correct	400 ms	56764 KB	Output is correct
79	Correct	410 ms	67704 KB	Output is correct
80	Correct	410 ms	62712 KB	Output is correct
81	Correct	406 ms	59000 KB	Output is correct
82	Correct	412 ms	67448 KB	Output is correct
83	Correct	409 ms	67704 KB	Output is correct
84	Correct	405 ms	65912 KB	Output is correct
85	Correct	407 ms	67032 KB	Output is correct
86	Correct	274 ms	56304 KB	Output is correct
87	Correct	292 ms	55672 KB	Output is correct
88	Correct	178 ms	34276 KB	Output is correct
89	Correct	176 ms	34660 KB	Output is correct
90	Correct	183 ms	34532 KB	Output is correct

답안 #283248

Compilation message

Subtask #1 12.0 / 12.0

Subtask #2 10.0 / 10.0

Subtask #3 23.0 / 23.0

Subtask #4 55.0 / 55.0

Subtask #1
12.0 / 12.0

Subtask #2
10.0 / 10.0

Subtask #3
23.0 / 23.0

Subtask #4
55.0 / 55.0