Submission #4073

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
4073	2013-08-31T18:55:47 Z	ainta	Cactus? Not cactus? (kriii1_C)	C++	1 / 1	64 ms	10084 KB

C

#include<stdio.h>
#include<algorithm>
#include<vector>
using namespace std;
vector<int>E[100001];
int n,m,p[100001],C[100001];
bool v[100001];
void DFS(int a){
	v[a]=true;
	int i,j;
	for(i=0;i<E[a].size();i++){
		if(v[E[a][i]] && E[a][i]!=p[a]){
			j=a;
			C[j]++;
			while(j!=E[a][i]){
				C[p[j]]++;
				j=p[j];
			}
		}
	}
	for(i=0;i<E[a].size();i++){
		if(!v[E[a][i]]){
			p[E[a][i]]=a;
			DFS(E[a][i]);
		}
	}
}
int main()
{
	int a,b,i;
	scanf("%d%d",&n,&m);
	while(m--){
		scanf("%d%d",&a,&b);
		E[a].push_back(b);
		E[b].push_back(a);
	}
	DFS(1);
	for(i=1;i<=n;i++)if(C[i]>=2)break;
	if(i==n+1)printf("Cactus\n");
	else printf("Not cactus\n");
}

Subtask #1

1.0 / 1.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	4428 KB	Output is correct
2	Correct	0 ms	4428 KB	Output is correct
3	Correct	4 ms	4560 KB	Output is correct
4	Correct	0 ms	4428 KB	Output is correct
5	Correct	0 ms	4428 KB	Output is correct
6	Correct	4 ms	4560 KB	Output is correct
7	Correct	4 ms	4560 KB	Output is correct
8	Correct	0 ms	4560 KB	Output is correct
9	Correct	0 ms	4560 KB	Output is correct
10	Correct	44 ms	7332 KB	Output is correct
11	Correct	28 ms	7180 KB	Output is correct
12	Correct	28 ms	7736 KB	Output is correct
13	Correct	52 ms	7360 KB	Output is correct
14	Correct	44 ms	7184 KB	Output is correct
15	Correct	40 ms	8520 KB	Output is correct
16	Correct	36 ms	7224 KB	Output is correct
17	Correct	36 ms	7736 KB	Output is correct
18	Correct	56 ms	9476 KB	Output is correct
19	Correct	64 ms	10084 KB	Output is correct
20	Correct	24 ms	7480 KB	Output is correct
21	Correct	60 ms	7568 KB	Output is correct
22	Correct	56 ms	8852 KB	Output is correct
23	Correct	0 ms	4428 KB	Output is correct
24	Correct	0 ms	4428 KB	Output is correct
25	Correct	0 ms	4800 KB	Output is correct
26	Correct	52 ms	7200 KB	Output is correct
27	Correct	20 ms	5484 KB	Output is correct
28	Correct	48 ms	6804 KB	Output is correct
29	Correct	48 ms	6804 KB	Output is correct
30	Correct	48 ms	6936 KB	Output is correct
31	Correct	52 ms	6804 KB	Output is correct
32	Correct	56 ms	7200 KB	Output is correct
33	Correct	52 ms	7200 KB	Output is correct
34	Correct	52 ms	7200 KB	Output is correct