| # |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
| 110735 |
2019-05-12T07:10:25 Z |
Mahdi_Jfri |
007 (CEOI14_007) |
C++14 |
|
319 ms |
20344 KB |
#include<bits/stdc++.h>
using namespace std;
#define ll long long
#define pb push_back
const int maxn = 2e5 + 20;
vector<int> adj[maxn];
int d[2][maxn];
void bfs(int src , int k)
{
memset(d[k] , 63 , sizeof d[k]);
queue<int> q;
q.push(src);
d[k][src] = 0;
while(!q.empty())
{
int v = q.front();
q.pop();
for(auto u : adj[v])
if(d[k][u] > d[k][v] + 1)
{
d[k][u] = d[k][v] + 1;
q.push(u);
}
}
}
int main()
{
ios_base::sync_with_stdio(false);
cin.tie(0);
cout.tie(0);
int n , m;
cin >> n >> m;
int a , b , s , t;
cin >> s >> t >> a >> b;
s-- , t-- , a-- , b--;
for(int i = 0; i < m; i++)
{
int a , b;
cin >> a >> b;
a-- , b--;
adj[a].pb(b);
adj[b].pb(a);
}
bfs(a , 0) , bfs(b , 1);
if(d[0][s] > d[0][t] || d[1][s] > d[1][t])
return cout << -1 << endl , 0;
cout << min(d[0][t] - d[0][s] , d[1][t] - d[1][s]) << endl;
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
10 ms |
6528 KB |
Output is correct |
| 2 |
Correct |
9 ms |
6528 KB |
Output is correct |
| 3 |
Correct |
8 ms |
6656 KB |
Output is correct |
| 4 |
Incorrect |
7 ms |
6528 KB |
Output isn't correct |
| 5 |
Incorrect |
9 ms |
6528 KB |
Output isn't correct |
| 6 |
Correct |
7 ms |
6528 KB |
Output is correct |
| 7 |
Correct |
7 ms |
6528 KB |
Output is correct |
| 8 |
Incorrect |
8 ms |
6528 KB |
Output isn't correct |
| 9 |
Correct |
8 ms |
6528 KB |
Output is correct |
| 10 |
Correct |
8 ms |
6528 KB |
Output is correct |
| 11 |
Correct |
8 ms |
6528 KB |
Output is correct |
| 12 |
Incorrect |
10 ms |
6656 KB |
Output isn't correct |
| 13 |
Correct |
7 ms |
6656 KB |
Output is correct |
| 14 |
Incorrect |
8 ms |
6628 KB |
Output isn't correct |
| 15 |
Correct |
8 ms |
6528 KB |
Output is correct |
| 16 |
Incorrect |
9 ms |
6576 KB |
Output isn't correct |
| 17 |
Incorrect |
7 ms |
6656 KB |
Output isn't correct |
| 18 |
Incorrect |
9 ms |
6656 KB |
Output isn't correct |
| 19 |
Correct |
9 ms |
6656 KB |
Output is correct |
| 20 |
Correct |
8 ms |
6656 KB |
Output is correct |
| 21 |
Correct |
10 ms |
6668 KB |
Output is correct |
| 22 |
Correct |
8 ms |
6628 KB |
Output is correct |
| 23 |
Correct |
8 ms |
6656 KB |
Output is correct |
| 24 |
Incorrect |
10 ms |
6612 KB |
Output isn't correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
33 ms |
8324 KB |
Output is correct |
| 2 |
Incorrect |
50 ms |
9180 KB |
Output isn't correct |
| 3 |
Correct |
36 ms |
8496 KB |
Output is correct |
| 4 |
Incorrect |
64 ms |
9208 KB |
Output isn't correct |
| 5 |
Correct |
32 ms |
8312 KB |
Output is correct |
| 6 |
Correct |
34 ms |
8696 KB |
Output is correct |
| 7 |
Correct |
32 ms |
8704 KB |
Output is correct |
| 8 |
Correct |
39 ms |
8672 KB |
Output is correct |
| 9 |
Incorrect |
49 ms |
9592 KB |
Output isn't correct |
| 10 |
Correct |
187 ms |
17016 KB |
Output is correct |
| 11 |
Incorrect |
82 ms |
10488 KB |
Output isn't correct |
| 12 |
Correct |
79 ms |
11648 KB |
Output is correct |
| 13 |
Incorrect |
80 ms |
10904 KB |
Output isn't correct |
| 14 |
Correct |
50 ms |
10104 KB |
Output is correct |
| 15 |
Correct |
76 ms |
11640 KB |
Output is correct |
| 16 |
Correct |
121 ms |
11896 KB |
Output is correct |
| 17 |
Correct |
95 ms |
11228 KB |
Output is correct |
| 18 |
Incorrect |
98 ms |
11404 KB |
Output isn't correct |
| 19 |
Correct |
127 ms |
13688 KB |
Output is correct |
| 20 |
Incorrect |
273 ms |
17948 KB |
Output isn't correct |
| 21 |
Incorrect |
118 ms |
13688 KB |
Output isn't correct |
| 22 |
Correct |
103 ms |
12664 KB |
Output is correct |
| 23 |
Correct |
121 ms |
13420 KB |
Output is correct |
| 24 |
Correct |
125 ms |
13432 KB |
Output is correct |
| 25 |
Incorrect |
111 ms |
13048 KB |
Output isn't correct |
| 26 |
Correct |
116 ms |
12668 KB |
Output is correct |
| 27 |
Correct |
124 ms |
13616 KB |
Output is correct |
| 28 |
Correct |
147 ms |
13560 KB |
Output is correct |
| 29 |
Correct |
178 ms |
15668 KB |
Output is correct |
| 30 |
Incorrect |
237 ms |
18424 KB |
Output isn't correct |
| 31 |
Incorrect |
139 ms |
14736 KB |
Output isn't correct |
| 32 |
Correct |
128 ms |
13632 KB |
Output is correct |
| 33 |
Correct |
129 ms |
13880 KB |
Output is correct |
| 34 |
Incorrect |
134 ms |
14200 KB |
Output isn't correct |
| 35 |
Incorrect |
114 ms |
13816 KB |
Output isn't correct |
| 36 |
Incorrect |
125 ms |
14092 KB |
Output isn't correct |
| 37 |
Correct |
149 ms |
15224 KB |
Output is correct |
| 38 |
Correct |
166 ms |
14888 KB |
Output is correct |
| 39 |
Correct |
174 ms |
14940 KB |
Output is correct |
| 40 |
Incorrect |
252 ms |
18224 KB |
Output isn't correct |
| 41 |
Correct |
319 ms |
20344 KB |
Output is correct |
