답안 #57037 :: oj.uz

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
57037	2018-07-13T16:38:15 Z	dennisstar	산만한 고양이 (KOI17_cat)	C++11	45 / 100	772 ms	263168 KB

#include <bits/stdc++.h>
using namespace std;
int N, M;
vector<int> V[300010], C[300010];
int cnt[300010], P[300010], W[300010], S[300010];
//P: parent node W: weak node S: strong node
void dfs(int lev, int par)
{
	int sv, i;
	for (i=0; i<(int)V[lev].size(); i++) {
		if (V[lev][i]==par) continue;
		if(!cnt[V[lev][i]]) {
			cnt[V[lev][i]]=cnt[lev]+1;
			C[lev].push_back(V[lev][i]);
			sv=S[lev];
			dfs(V[lev][i], lev);
			P[V[lev][i]]=S[lev]-sv;
			S[lev]+=S[V[lev][i]], W[lev]+=W[V[lev][i]];
		}
		else if (cnt[lev]>cnt[V[lev][i]]) W[lev]++,S[V[lev][i]]++;
	}
}
int main()
{
	scanf("%d %d", &N, &M);
	int i, j, k;
	long long sum=0;
	for (i=0; i<M; i++) {
		scanf("%d %d", &j, &k);
		V[j].push_back(k);
		V[k].push_back(j);
	}
	cnt[1]=1; dfs(1, 0);
	for (i=1; i<=N; i++) {
		if (M-N+1!=W[i]) continue;
		for (j=0; j<(int)C[i].size(); j++) {
			if (S[C[i][j]]||W[C[i][j]]-P[C[i][j]]>1) break;
		}
		if (j!=(int)C[i].size()) continue;
		sum+=i;
	}
	printf("%lld", sum);
	return 0;
}

Compilation message

cat.cpp: In function 'int main()':
cat.cpp:25:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d %d", &N, &M);
  ~~~~~^~~~~~~~~~~~~~~~~
cat.cpp:29:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d %d", &j, &k);
   ~~~~~^~~~~~~~~~~~~~~~~

Subtask #1
12.0 / 12.0

#	결과	실행 시간	메모리	Grader output
1	Correct	20 ms	14456 KB	Output is correct
2	Correct	15 ms	14456 KB	Output is correct
3	Correct	17 ms	14480 KB	Output is correct
4	Correct	18 ms	14532 KB	Output is correct
5	Correct	17 ms	15176 KB	Output is correct
6	Correct	25 ms	15176 KB	Output is correct
7	Correct	19 ms	15712 KB	Output is correct
8	Correct	23 ms	15712 KB	Output is correct
9	Correct	20 ms	15932 KB	Output is correct
10	Correct	25 ms	15932 KB	Output is correct
11	Correct	22 ms	15936 KB	Output is correct
12	Correct	23 ms	15936 KB	Output is correct
13	Correct	20 ms	15936 KB	Output is correct
14	Correct	21 ms	15936 KB	Output is correct
15	Correct	17 ms	15936 KB	Output is correct
16	Correct	18 ms	15936 KB	Output is correct
17	Correct	15 ms	15936 KB	Output is correct
18	Correct	15 ms	15936 KB	Output is correct
19	Correct	16 ms	15936 KB	Output is correct
20	Correct	19 ms	16100 KB	Output is correct
21	Correct	19 ms	16176 KB	Output is correct
22	Correct	20 ms	16240 KB	Output is correct
23	Correct	16 ms	16240 KB	Output is correct
24	Correct	22 ms	16240 KB	Output is correct
25	Correct	18 ms	16240 KB	Output is correct

Subtask #2
10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	506 ms	38780 KB	Output is correct
2	Correct	434 ms	42680 KB	Output is correct
3	Correct	433 ms	46656 KB	Output is correct
4	Correct	455 ms	50452 KB	Output is correct
5	Correct	477 ms	54420 KB	Output is correct
6	Correct	408 ms	58264 KB	Output is correct
7	Correct	567 ms	62236 KB	Output is correct
8	Correct	562 ms	66328 KB	Output is correct
9	Correct	419 ms	70064 KB	Output is correct
10	Correct	542 ms	73992 KB	Output is correct
11	Correct	433 ms	78536 KB	Output is correct
12	Correct	536 ms	82512 KB	Output is correct
13	Correct	561 ms	86080 KB	Output is correct
14	Correct	488 ms	90144 KB	Output is correct
15	Correct	554 ms	94044 KB	Output is correct
16	Correct	446 ms	103732 KB	Output is correct
17	Correct	425 ms	108948 KB	Output is correct
18	Correct	610 ms	110460 KB	Output is correct
19	Correct	503 ms	115588 KB	Output is correct
20	Correct	495 ms	118212 KB	Output is correct
21	Correct	454 ms	119800 KB	Output is correct
22	Correct	559 ms	135236 KB	Output is correct
23	Correct	533 ms	144084 KB	Output is correct
24	Correct	525 ms	144084 KB	Output is correct
25	Correct	508 ms	149492 KB	Output is correct
26	Correct	224 ms	168508 KB	Output is correct

Subtask #3
23.0 / 23.0

#	결과	실행 시간	메모리	Grader output
1	Correct	217 ms	172260 KB	Output is correct
2	Correct	267 ms	176076 KB	Output is correct
3	Correct	200 ms	180144 KB	Output is correct
4	Correct	293 ms	183952 KB	Output is correct
5	Correct	216 ms	187584 KB	Output is correct
6	Correct	224 ms	191268 KB	Output is correct
7	Correct	227 ms	194968 KB	Output is correct
8	Correct	227 ms	198480 KB	Output is correct
9	Correct	223 ms	202052 KB	Output is correct
10	Correct	255 ms	202052 KB	Output is correct
11	Correct	264 ms	202052 KB	Output is correct
12	Correct	268 ms	204792 KB	Output is correct
13	Correct	313 ms	208464 KB	Output is correct
14	Correct	292 ms	211820 KB	Output is correct
15	Correct	279 ms	211820 KB	Output is correct
16	Correct	302 ms	211820 KB	Output is correct
17	Correct	273 ms	214380 KB	Output is correct
18	Correct	265 ms	217940 KB	Output is correct
19	Correct	233 ms	221472 KB	Output is correct

Subtask #4
0 / 55.0

#	결과	실행 시간	메모리	Grader output
1	Correct	20 ms	14456 KB	Output is correct
2	Correct	15 ms	14456 KB	Output is correct
3	Correct	17 ms	14480 KB	Output is correct
4	Correct	18 ms	14532 KB	Output is correct
5	Correct	17 ms	15176 KB	Output is correct
6	Correct	25 ms	15176 KB	Output is correct
7	Correct	19 ms	15712 KB	Output is correct
8	Correct	23 ms	15712 KB	Output is correct
9	Correct	20 ms	15932 KB	Output is correct
10	Correct	25 ms	15932 KB	Output is correct
11	Correct	22 ms	15936 KB	Output is correct
12	Correct	23 ms	15936 KB	Output is correct
13	Correct	20 ms	15936 KB	Output is correct
14	Correct	21 ms	15936 KB	Output is correct
15	Correct	17 ms	15936 KB	Output is correct
16	Correct	18 ms	15936 KB	Output is correct
17	Correct	15 ms	15936 KB	Output is correct
18	Correct	15 ms	15936 KB	Output is correct
19	Correct	16 ms	15936 KB	Output is correct
20	Correct	19 ms	16100 KB	Output is correct
21	Correct	19 ms	16176 KB	Output is correct
22	Correct	20 ms	16240 KB	Output is correct
23	Correct	16 ms	16240 KB	Output is correct
24	Correct	22 ms	16240 KB	Output is correct
25	Correct	18 ms	16240 KB	Output is correct
26	Correct	506 ms	38780 KB	Output is correct
27	Correct	434 ms	42680 KB	Output is correct
28	Correct	433 ms	46656 KB	Output is correct
29	Correct	455 ms	50452 KB	Output is correct
30	Correct	477 ms	54420 KB	Output is correct
31	Correct	408 ms	58264 KB	Output is correct
32	Correct	567 ms	62236 KB	Output is correct
33	Correct	562 ms	66328 KB	Output is correct
34	Correct	419 ms	70064 KB	Output is correct
35	Correct	542 ms	73992 KB	Output is correct
36	Correct	433 ms	78536 KB	Output is correct
37	Correct	536 ms	82512 KB	Output is correct
38	Correct	561 ms	86080 KB	Output is correct
39	Correct	488 ms	90144 KB	Output is correct
40	Correct	554 ms	94044 KB	Output is correct
41	Correct	446 ms	103732 KB	Output is correct
42	Correct	425 ms	108948 KB	Output is correct
43	Correct	610 ms	110460 KB	Output is correct
44	Correct	503 ms	115588 KB	Output is correct
45	Correct	495 ms	118212 KB	Output is correct
46	Correct	454 ms	119800 KB	Output is correct
47	Correct	559 ms	135236 KB	Output is correct
48	Correct	533 ms	144084 KB	Output is correct
49	Correct	525 ms	144084 KB	Output is correct
50	Correct	508 ms	149492 KB	Output is correct
51	Correct	224 ms	168508 KB	Output is correct
52	Correct	217 ms	172260 KB	Output is correct
53	Correct	267 ms	176076 KB	Output is correct
54	Correct	200 ms	180144 KB	Output is correct
55	Correct	293 ms	183952 KB	Output is correct
56	Correct	216 ms	187584 KB	Output is correct
57	Correct	224 ms	191268 KB	Output is correct
58	Correct	227 ms	194968 KB	Output is correct
59	Correct	227 ms	198480 KB	Output is correct
60	Correct	223 ms	202052 KB	Output is correct
61	Correct	255 ms	202052 KB	Output is correct
62	Correct	264 ms	202052 KB	Output is correct
63	Correct	268 ms	204792 KB	Output is correct
64	Correct	313 ms	208464 KB	Output is correct
65	Correct	292 ms	211820 KB	Output is correct
66	Correct	279 ms	211820 KB	Output is correct
67	Correct	302 ms	211820 KB	Output is correct
68	Correct	273 ms	214380 KB	Output is correct
69	Correct	265 ms	217940 KB	Output is correct
70	Correct	233 ms	221472 KB	Output is correct
71	Correct	760 ms	239152 KB	Output is correct
72	Correct	721 ms	240632 KB	Output is correct
73	Correct	675 ms	243056 KB	Output is correct
74	Correct	629 ms	248316 KB	Output is correct
75	Correct	656 ms	248380 KB	Output is correct
76	Correct	772 ms	251408 KB	Output is correct
77	Correct	700 ms	251408 KB	Output is correct
78	Correct	637 ms	252684 KB	Output is correct
79	Runtime error	697 ms	263168 KB	Memory limit exceeded: We have a known bug that the memory usage is measured incorrectly (possibly because of Meltdown/Spectre patch), so your solution may be correct. Please submit again. Sorry for the inconvenience.
80	Halted	0 ms	0 KB	-

답안 #57037

Compilation message

Subtask #1 12.0 / 12.0

Subtask #2 10.0 / 10.0

Subtask #3 23.0 / 23.0

Subtask #4 0 / 55.0

Subtask #1
12.0 / 12.0

Subtask #2
10.0 / 10.0

Subtask #3
23.0 / 23.0

Subtask #4
0 / 55.0