#include<bits/stdc++.h>
using namespace std;
#define N 200010
#define ll long long
#define ii pair<int,int>
#define fs first
#define sc second
#define pb push_back
int dp[N][5],f[5],n,m;
vector<int>g[N];
deque<int>dq;
void build(int id)
{
dp[f[id]][id]=0;
dq.pb(f[id]);
while(!dq.empty())
{
int u=dq.front();
dq.pop_front();
for(auto v:g[u])
if(dp[v][id]>dp[u][id]+1)
{
dp[v][id]=dp[u][id]+1;
dq.pb(v);
}
}
}
int main()
{
// freopen("A.inp","r",stdin);
// freopen("A.out","w",stdout);
ios::sync_with_stdio(0);
cin.tie(NULL);
cout.tie(NULL);
cin>>n>>m>>f[1]>>f[2]>>f[3]>>f[4];
for(int i=1;i<=m;i++)
{
int u,v;
cin>>u>>v;
g[u].pb(v);
g[v].pb(u);
}
memset(dp,0x3f3f,sizeof(dp));
for(int i=1;i<=2;i++)
build(i);
int val=min(dp[f[3]][2]-dp[f[3]][1],dp[f[4]][2]-dp[f[4]][1]);
if(val<0)
cout<<-1;
else cout<<val;
return 0;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
5 ms |
8916 KB |
Output is correct |
2 |
Correct |
5 ms |
8916 KB |
Output is correct |
3 |
Correct |
4 ms |
8916 KB |
Output is correct |
4 |
Incorrect |
4 ms |
8916 KB |
Output isn't correct |
5 |
Incorrect |
4 ms |
8916 KB |
Output isn't correct |
6 |
Correct |
4 ms |
8916 KB |
Output is correct |
7 |
Correct |
4 ms |
8856 KB |
Output is correct |
8 |
Incorrect |
5 ms |
8916 KB |
Output isn't correct |
9 |
Correct |
5 ms |
8916 KB |
Output is correct |
10 |
Correct |
4 ms |
8916 KB |
Output is correct |
11 |
Correct |
4 ms |
8916 KB |
Output is correct |
12 |
Incorrect |
4 ms |
8916 KB |
Output isn't correct |
13 |
Correct |
5 ms |
8880 KB |
Output is correct |
14 |
Incorrect |
4 ms |
8916 KB |
Output isn't correct |
15 |
Correct |
5 ms |
8840 KB |
Output is correct |
16 |
Incorrect |
5 ms |
8916 KB |
Output isn't correct |
17 |
Incorrect |
5 ms |
8916 KB |
Output isn't correct |
18 |
Incorrect |
5 ms |
8916 KB |
Output isn't correct |
19 |
Correct |
4 ms |
8916 KB |
Output is correct |
20 |
Correct |
4 ms |
8916 KB |
Output is correct |
21 |
Correct |
5 ms |
8916 KB |
Output is correct |
22 |
Correct |
4 ms |
8916 KB |
Output is correct |
23 |
Correct |
5 ms |
8940 KB |
Output is correct |
24 |
Incorrect |
4 ms |
8916 KB |
Output isn't correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
22 ms |
10196 KB |
Output is correct |
2 |
Incorrect |
30 ms |
10788 KB |
Output isn't correct |
3 |
Correct |
20 ms |
10228 KB |
Output is correct |
4 |
Incorrect |
26 ms |
10852 KB |
Output isn't correct |
5 |
Correct |
18 ms |
10096 KB |
Output is correct |
6 |
Correct |
18 ms |
10272 KB |
Output is correct |
7 |
Correct |
22 ms |
10476 KB |
Output is correct |
8 |
Correct |
23 ms |
10400 KB |
Output is correct |
9 |
Incorrect |
33 ms |
10872 KB |
Output isn't correct |
10 |
Correct |
113 ms |
15096 KB |
Output is correct |
11 |
Incorrect |
42 ms |
11736 KB |
Output isn't correct |
12 |
Correct |
63 ms |
12440 KB |
Output is correct |
13 |
Incorrect |
48 ms |
11920 KB |
Output isn't correct |
14 |
Correct |
35 ms |
11496 KB |
Output is correct |
15 |
Correct |
53 ms |
12500 KB |
Output is correct |
16 |
Correct |
56 ms |
12684 KB |
Output is correct |
17 |
Correct |
49 ms |
12236 KB |
Output is correct |
18 |
Incorrect |
55 ms |
12332 KB |
Output isn't correct |
19 |
Correct |
77 ms |
13508 KB |
Output is correct |
20 |
Incorrect |
144 ms |
16240 KB |
Output isn't correct |
21 |
Incorrect |
110 ms |
13900 KB |
Output isn't correct |
22 |
Correct |
76 ms |
13264 KB |
Output is correct |
23 |
Correct |
71 ms |
13792 KB |
Output is correct |
24 |
Correct |
90 ms |
13856 KB |
Output is correct |
25 |
Incorrect |
75 ms |
13568 KB |
Output isn't correct |
26 |
Correct |
104 ms |
13436 KB |
Output is correct |
27 |
Correct |
95 ms |
13932 KB |
Output is correct |
28 |
Correct |
97 ms |
13900 KB |
Output is correct |
29 |
Correct |
97 ms |
14724 KB |
Output is correct |
30 |
Incorrect |
147 ms |
16772 KB |
Output isn't correct |
31 |
Incorrect |
117 ms |
14696 KB |
Output isn't correct |
32 |
Correct |
92 ms |
13772 KB |
Output is correct |
33 |
Correct |
99 ms |
14060 KB |
Output is correct |
34 |
Incorrect |
100 ms |
14296 KB |
Output isn't correct |
35 |
Incorrect |
96 ms |
14092 KB |
Output isn't correct |
36 |
Incorrect |
102 ms |
14268 KB |
Output isn't correct |
37 |
Correct |
113 ms |
14964 KB |
Output is correct |
38 |
Correct |
126 ms |
14856 KB |
Output is correct |
39 |
Correct |
137 ms |
14884 KB |
Output is correct |
40 |
Incorrect |
165 ms |
16480 KB |
Output isn't correct |
41 |
Correct |
209 ms |
18680 KB |
Output is correct |