oj.uz

Submission #57040

# Submission time Handle Problem Language Result Execution time Memory
57040 2018-07-13T16:42:07 Z dennisstar None (KOI17_cat) C++11
100 / 100
 680 ms 111636 KB 
#include <bits/stdc++.h>
using namespace std;
int N, M;
vector<int> V[300001], C[300001];
int cnt[300001], P[300001], W[300001], S[300001];
//P: parent node W: weak node S: strong node
void dfs(int lev, int par)
{
	int ch, sv, i; //ch 안쓰면 터져버린다;;
	for (i=0; i<(int)V[lev].size(); i++) {
		ch=V[lev][i];
		if (ch==par) continue;
		if(!cnt[ch]) {
			cnt[ch]=cnt[lev]+1;
			C[lev].push_back(ch);
			sv=S[lev];
			dfs(ch, lev);
			P[ch]=S[lev]-sv;
			S[lev]+=S[ch], W[lev]+=W[ch];
		}
		else if (cnt[lev]>cnt[ch]) W[lev]++,S[ch]++;
	}
}
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:26:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d %d", &N, &M);
  ~~~~~^~~~~~~~~~~~~~~~~
cat.cpp:30:8: 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

# Verdict Execution time Memory Grader output
1 Correct 16 ms 14584 KB Output is correct
2 Correct 18 ms 14584 KB Output is correct
3 Correct 17 ms 14600 KB Output is correct
4 Correct 17 ms 14600 KB Output is correct
5 Correct 20 ms 15076 KB Output is correct
6 Correct 17 ms 15076 KB Output is correct
7 Correct 22 ms 15472 KB Output is correct
8 Correct 27 ms 15472 KB Output is correct
9 Correct 22 ms 15696 KB Output is correct
10 Correct 19 ms 15696 KB Output is correct
11 Correct 22 ms 15708 KB Output is correct
12 Correct 19 ms 15884 KB Output is correct
13 Correct 20 ms 15884 KB Output is correct
14 Correct 23 ms 15884 KB Output is correct
15 Correct 20 ms 15884 KB Output is correct
16 Correct 17 ms 15884 KB Output is correct
17 Correct 16 ms 15884 KB Output is correct
18 Correct 17 ms 15884 KB Output is correct
19 Correct 15 ms 15884 KB Output is correct
20 Correct 17 ms 15964 KB Output is correct
21 Correct 18 ms 16016 KB Output is correct
22 Correct 23 ms 16064 KB Output is correct
23 Correct 16 ms 16064 KB Output is correct
24 Correct 20 ms 16064 KB Output is correct
25 Correct 16 ms 16064 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 521 ms 38652 KB Output is correct
2 Correct 536 ms 42644 KB Output is correct
3 Correct 414 ms 46532 KB Output is correct
4 Correct 584 ms 50292 KB Output is correct
5 Correct 457 ms 54180 KB Output is correct
6 Correct 559 ms 58144 KB Output is correct
7 Correct 573 ms 58772 KB Output is correct
8 Correct 551 ms 58772 KB Output is correct
9 Correct 551 ms 58772 KB Output is correct
10 Correct 443 ms 58772 KB Output is correct
11 Correct 547 ms 59448 KB Output is correct
12 Correct 534 ms 59448 KB Output is correct
13 Correct 550 ms 59448 KB Output is correct
14 Correct 475 ms 59448 KB Output is correct
15 Correct 440 ms 59448 KB Output is correct
16 Correct 479 ms 65224 KB Output is correct
17 Correct 543 ms 66612 KB Output is correct
18 Correct 520 ms 66612 KB Output is correct
19 Correct 626 ms 66612 KB Output is correct
20 Correct 448 ms 66612 KB Output is correct
21 Correct 464 ms 66612 KB Output is correct
22 Correct 449 ms 73264 KB Output is correct
23 Correct 515 ms 78180 KB Output is correct
24 Correct 501 ms 78180 KB Output is correct
25 Correct 461 ms 78180 KB Output is correct
26 Correct 195 ms 90972 KB Output is correct

Subtask #3
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 201 ms 90980 KB Output is correct
2 Correct 316 ms 90980 KB Output is correct
3 Correct 260 ms 91132 KB Output is correct
4 Correct 227 ms 91132 KB Output is correct
5 Correct 223 ms 91132 KB Output is correct
6 Correct 228 ms 91172 KB Output is correct
7 Correct 201 ms 91172 KB Output is correct
8 Correct 204 ms 91172 KB Output is correct
9 Correct 236 ms 91172 KB Output is correct
10 Correct 258 ms 91172 KB Output is correct
11 Correct 219 ms 91172 KB Output is correct
12 Correct 212 ms 91172 KB Output is correct
13 Correct 214 ms 91172 KB Output is correct
14 Correct 212 ms 91172 KB Output is correct
15 Correct 237 ms 91172 KB Output is correct
16 Correct 335 ms 91172 KB Output is correct
17 Correct 233 ms 91172 KB Output is correct
18 Correct 256 ms 91172 KB Output is correct
19 Correct 257 ms 91172 KB Output is correct

Subtask #4
55.0 / 55.0

# Verdict Execution time Memory Grader output
1 Correct 16 ms 14584 KB Output is correct
2 Correct 18 ms 14584 KB Output is correct
3 Correct 17 ms 14600 KB Output is correct
4 Correct 17 ms 14600 KB Output is correct
5 Correct 20 ms 15076 KB Output is correct
6 Correct 17 ms 15076 KB Output is correct
7 Correct 22 ms 15472 KB Output is correct
8 Correct 27 ms 15472 KB Output is correct
9 Correct 22 ms 15696 KB Output is correct
10 Correct 19 ms 15696 KB Output is correct
11 Correct 22 ms 15708 KB Output is correct
12 Correct 19 ms 15884 KB Output is correct
13 Correct 20 ms 15884 KB Output is correct
14 Correct 23 ms 15884 KB Output is correct
15 Correct 20 ms 15884 KB Output is correct
16 Correct 17 ms 15884 KB Output is correct
17 Correct 16 ms 15884 KB Output is correct
18 Correct 17 ms 15884 KB Output is correct
19 Correct 15 ms 15884 KB Output is correct
20 Correct 17 ms 15964 KB Output is correct
21 Correct 18 ms 16016 KB Output is correct
22 Correct 23 ms 16064 KB Output is correct
23 Correct 16 ms 16064 KB Output is correct
24 Correct 20 ms 16064 KB Output is correct
25 Correct 16 ms 16064 KB Output is correct
26 Correct 521 ms 38652 KB Output is correct
27 Correct 536 ms 42644 KB Output is correct
28 Correct 414 ms 46532 KB Output is correct
29 Correct 584 ms 50292 KB Output is correct
30 Correct 457 ms 54180 KB Output is correct
31 Correct 559 ms 58144 KB Output is correct
32 Correct 573 ms 58772 KB Output is correct
33 Correct 551 ms 58772 KB Output is correct
34 Correct 551 ms 58772 KB Output is correct
35 Correct 443 ms 58772 KB Output is correct
36 Correct 547 ms 59448 KB Output is correct
37 Correct 534 ms 59448 KB Output is correct
38 Correct 550 ms 59448 KB Output is correct
39 Correct 475 ms 59448 KB Output is correct
40 Correct 440 ms 59448 KB Output is correct
41 Correct 479 ms 65224 KB Output is correct
42 Correct 543 ms 66612 KB Output is correct
43 Correct 520 ms 66612 KB Output is correct
44 Correct 626 ms 66612 KB Output is correct
45 Correct 448 ms 66612 KB Output is correct
46 Correct 464 ms 66612 KB Output is correct
47 Correct 449 ms 73264 KB Output is correct
48 Correct 515 ms 78180 KB Output is correct
49 Correct 501 ms 78180 KB Output is correct
50 Correct 461 ms 78180 KB Output is correct
51 Correct 195 ms 90972 KB Output is correct
52 Correct 201 ms 90980 KB Output is correct
53 Correct 316 ms 90980 KB Output is correct
54 Correct 260 ms 91132 KB Output is correct
55 Correct 227 ms 91132 KB Output is correct
56 Correct 223 ms 91132 KB Output is correct
57 Correct 228 ms 91172 KB Output is correct
58 Correct 201 ms 91172 KB Output is correct
59 Correct 204 ms 91172 KB Output is correct
60 Correct 236 ms 91172 KB Output is correct
61 Correct 258 ms 91172 KB Output is correct
62 Correct 219 ms 91172 KB Output is correct
63 Correct 212 ms 91172 KB Output is correct
64 Correct 214 ms 91172 KB Output is correct
65 Correct 212 ms 91172 KB Output is correct
66 Correct 237 ms 91172 KB Output is correct
67 Correct 335 ms 91172 KB Output is correct
68 Correct 233 ms 91172 KB Output is correct
69 Correct 256 ms 91172 KB Output is correct
70 Correct 257 ms 91172 KB Output is correct
71 Correct 495 ms 91172 KB Output is correct
72 Correct 517 ms 91172 KB Output is correct
73 Correct 571 ms 91172 KB Output is correct
74 Correct 621 ms 91172 KB Output is correct
75 Correct 649 ms 91172 KB Output is correct
76 Correct 526 ms 91172 KB Output is correct
77 Correct 504 ms 91172 KB Output is correct
78 Correct 544 ms 91172 KB Output is correct
79 Correct 540 ms 91172 KB Output is correct
80 Correct 535 ms 91172 KB Output is correct
81 Correct 667 ms 91172 KB Output is correct
82 Correct 539 ms 100368 KB Output is correct
83 Correct 557 ms 104660 KB Output is correct
84 Correct 680 ms 106620 KB Output is correct
85 Correct 561 ms 111636 KB Output is correct
86 Correct 494 ms 111636 KB Output is correct
87 Correct 416 ms 111636 KB Output is correct
88 Correct 230 ms 111636 KB Output is correct
89 Correct 244 ms 111636 KB Output is correct
90 Correct 258 ms 111636 KB Output is correct