#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]);
val=min(val,min(dp[f[4]][2]-dp[f[3]][1]+1,dp[f[3]][2]-dp[f[4]][1]+1));
if(val<0)
cout<<-1;
else cout<<val;
return 0;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
4 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 |
8872 KB |
Output is correct |
7 |
Correct |
4 ms |
8868 KB |
Output is correct |
8 |
Incorrect |
4 ms |
8916 KB |
Output isn't correct |
9 |
Correct |
5 ms |
8872 KB |
Output is correct |
10 |
Correct |
4 ms |
8916 KB |
Output is correct |
11 |
Correct |
4 ms |
8916 KB |
Output is correct |
12 |
Incorrect |
5 ms |
8916 KB |
Output isn't correct |
13 |
Correct |
5 ms |
8880 KB |
Output is correct |
14 |
Incorrect |
5 ms |
8916 KB |
Output isn't correct |
15 |
Correct |
5 ms |
8916 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 |
5 ms |
8916 KB |
Output is correct |
20 |
Correct |
5 ms |
8872 KB |
Output is correct |
21 |
Correct |
4 ms |
8864 KB |
Output is correct |
22 |
Correct |
5 ms |
8916 KB |
Output is correct |
23 |
Correct |
5 ms |
8916 KB |
Output is correct |
24 |
Incorrect |
5 ms |
8964 KB |
Output isn't correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
20 ms |
10404 KB |
Output is correct |
2 |
Incorrect |
26 ms |
10916 KB |
Output isn't correct |
3 |
Correct |
26 ms |
10528 KB |
Output is correct |
4 |
Incorrect |
27 ms |
11084 KB |
Output isn't correct |
5 |
Correct |
21 ms |
10320 KB |
Output is correct |
6 |
Correct |
20 ms |
10584 KB |
Output is correct |
7 |
Correct |
24 ms |
10708 KB |
Output is correct |
8 |
Correct |
26 ms |
10716 KB |
Output is correct |
9 |
Incorrect |
40 ms |
11120 KB |
Output isn't correct |
10 |
Correct |
107 ms |
15492 KB |
Output is correct |
11 |
Incorrect |
39 ms |
12012 KB |
Output isn't correct |
12 |
Correct |
60 ms |
12984 KB |
Output is correct |
13 |
Incorrect |
44 ms |
12236 KB |
Output isn't correct |
14 |
Correct |
36 ms |
11684 KB |
Output is correct |
15 |
Correct |
56 ms |
13036 KB |
Output is correct |
16 |
Correct |
56 ms |
13232 KB |
Output is correct |
17 |
Correct |
53 ms |
12672 KB |
Output is correct |
18 |
Incorrect |
51 ms |
12620 KB |
Output isn't correct |
19 |
Correct |
79 ms |
14024 KB |
Output is correct |
20 |
Incorrect |
135 ms |
16872 KB |
Output isn't correct |
21 |
Incorrect |
80 ms |
14428 KB |
Output isn't correct |
22 |
Correct |
77 ms |
13696 KB |
Output is correct |
23 |
Correct |
76 ms |
14280 KB |
Output is correct |
24 |
Correct |
80 ms |
14256 KB |
Output is correct |
25 |
Incorrect |
85 ms |
14056 KB |
Output isn't correct |
26 |
Correct |
73 ms |
13824 KB |
Output is correct |
27 |
Correct |
86 ms |
14424 KB |
Output is correct |
28 |
Correct |
83 ms |
14412 KB |
Output is correct |
29 |
Correct |
105 ms |
15244 KB |
Output is correct |
30 |
Incorrect |
169 ms |
17220 KB |
Output isn't correct |
31 |
Incorrect |
90 ms |
15172 KB |
Output isn't correct |
32 |
Correct |
82 ms |
14284 KB |
Output is correct |
33 |
Correct |
82 ms |
14588 KB |
Output is correct |
34 |
Incorrect |
99 ms |
14808 KB |
Output isn't correct |
35 |
Incorrect |
73 ms |
14540 KB |
Output isn't correct |
36 |
Incorrect |
82 ms |
14760 KB |
Output isn't correct |
37 |
Correct |
101 ms |
15496 KB |
Output is correct |
38 |
Correct |
95 ms |
15308 KB |
Output is correct |
39 |
Correct |
102 ms |
15388 KB |
Output is correct |
40 |
Incorrect |
137 ms |
17016 KB |
Output isn't correct |
41 |
Correct |
192 ms |
19176 KB |
Output is correct |