| # |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
| 793337 |
2023-07-25T18:00:36 Z |
Valaki2 |
007 (CEOI14_007) |
C++14 |
|
162 ms |
17620 KB |
#include <bits/stdc++.h>
using namespace std;
#define pb push_back
const int maxn = 2e5;
int n, m;
vector<int> graph[1 + maxn];
int g, s, a, b;
vector<int> dg, ds, da, db;
vector<int> bfs(int start) {
vector<int> res(1 + n, -1);
res[start] = 0;
queue<int> q;
q.push(start);
while(!q.empty()) {
int cur = q.front();
q.pop();
for(int nei : graph[cur]) {
if(res[nei] == -1) {
res[nei] = res[cur] + 1;
q.push(nei);
}
}
}
return res;
}
void solve() {
cin >> n >> m;
cin >> g >> s >> a >> b;
for(int i = 0; i < m; i++) {
int x, y;
cin >> x >> y;
graph[x].pb(y);
graph[y].pb(x);
}
dg = bfs(g), ds = bfs(s), da = bfs(a), db = bfs(b);
if((da[s] < da[g]) || (db[s] < db[g])) {
cout << "-1\n";
return;
}
int add_a = da[s] - 1 - da[g], add_b = db[s] - 1 - db[g];
bool extra_case = true;
if(add_a != add_b) {
add_a++, add_b++;
extra_case = false;
}
int to_add = min(add_a, add_b);
if(!extra_case) {
cout << to_add << "\n";
return;
}
cout << to_add << "\n";
}
signed main() {
ios_base::sync_with_stdio(false);
cin.tie(nullptr);
solve();
return 0;
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
2 ms |
4948 KB |
Output is correct |
| 2 |
Partially correct |
2 ms |
4948 KB |
Partially correct |
| 3 |
Partially correct |
2 ms |
4948 KB |
Partially correct |
| 4 |
Correct |
2 ms |
4956 KB |
Output is correct |
| 5 |
Correct |
2 ms |
4948 KB |
Output is correct |
| 6 |
Partially correct |
2 ms |
4948 KB |
Partially correct |
| 7 |
Partially correct |
2 ms |
4948 KB |
Partially correct |
| 8 |
Correct |
2 ms |
4948 KB |
Output is correct |
| 9 |
Partially correct |
2 ms |
4948 KB |
Partially correct |
| 10 |
Correct |
2 ms |
4948 KB |
Output is correct |
| 11 |
Correct |
2 ms |
4948 KB |
Output is correct |
| 12 |
Correct |
2 ms |
4948 KB |
Output is correct |
| 13 |
Partially correct |
2 ms |
4948 KB |
Partially correct |
| 14 |
Correct |
2 ms |
4948 KB |
Output is correct |
| 15 |
Partially correct |
2 ms |
4948 KB |
Partially correct |
| 16 |
Correct |
2 ms |
4948 KB |
Output is correct |
| 17 |
Correct |
2 ms |
4948 KB |
Output is correct |
| 18 |
Correct |
2 ms |
4948 KB |
Output is correct |
| 19 |
Partially correct |
2 ms |
4948 KB |
Partially correct |
| 20 |
Partially correct |
2 ms |
4948 KB |
Partially correct |
| 21 |
Correct |
2 ms |
4948 KB |
Output is correct |
| 22 |
Partially correct |
2 ms |
4948 KB |
Partially correct |
| 23 |
Partially correct |
2 ms |
4948 KB |
Partially correct |
| 24 |
Correct |
2 ms |
4948 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Partially correct |
13 ms |
6868 KB |
Partially correct |
| 2 |
Correct |
17 ms |
7716 KB |
Output is correct |
| 3 |
Partially correct |
15 ms |
6996 KB |
Partially correct |
| 4 |
Correct |
19 ms |
7812 KB |
Output is correct |
| 5 |
Correct |
14 ms |
6836 KB |
Output is correct |
| 6 |
Correct |
13 ms |
7124 KB |
Output is correct |
| 7 |
Partially correct |
16 ms |
7344 KB |
Partially correct |
| 8 |
Partially correct |
16 ms |
7252 KB |
Partially correct |
| 9 |
Correct |
28 ms |
7748 KB |
Output is correct |
| 10 |
Partially correct |
89 ms |
12092 KB |
Partially correct |
| 11 |
Correct |
28 ms |
9168 KB |
Output is correct |
| 12 |
Partially correct |
39 ms |
10308 KB |
Partially correct |
| 13 |
Correct |
32 ms |
9584 KB |
Output is correct |
| 14 |
Correct |
26 ms |
8888 KB |
Output is correct |
| 15 |
Partially correct |
34 ms |
10428 KB |
Partially correct |
| 16 |
Correct |
38 ms |
10752 KB |
Output is correct |
| 17 |
Partially correct |
31 ms |
10108 KB |
Partially correct |
| 18 |
Correct |
34 ms |
10072 KB |
Output is correct |
| 19 |
Partially correct |
58 ms |
11340 KB |
Partially correct |
| 20 |
Correct |
119 ms |
14192 KB |
Output is correct |
| 21 |
Correct |
46 ms |
12532 KB |
Output is correct |
| 22 |
Partially correct |
43 ms |
11532 KB |
Partially correct |
| 23 |
Partially correct |
46 ms |
12360 KB |
Partially correct |
| 24 |
Partially correct |
44 ms |
12356 KB |
Partially correct |
| 25 |
Correct |
51 ms |
11912 KB |
Output is correct |
| 26 |
Partially correct |
42 ms |
11608 KB |
Partially correct |
| 27 |
Partially correct |
50 ms |
12452 KB |
Partially correct |
| 28 |
Partially correct |
54 ms |
12464 KB |
Partially correct |
| 29 |
Partially correct |
87 ms |
13052 KB |
Partially correct |
| 30 |
Correct |
132 ms |
14972 KB |
Output is correct |
| 31 |
Correct |
54 ms |
13580 KB |
Output is correct |
| 32 |
Partially correct |
56 ms |
12364 KB |
Partially correct |
| 33 |
Partially correct |
53 ms |
12684 KB |
Partially correct |
| 34 |
Correct |
58 ms |
13068 KB |
Output is correct |
| 35 |
Correct |
62 ms |
12716 KB |
Output is correct |
| 36 |
Correct |
51 ms |
13024 KB |
Output is correct |
| 37 |
Correct |
69 ms |
14160 KB |
Output is correct |
| 38 |
Partially correct |
60 ms |
13952 KB |
Partially correct |
| 39 |
Partially correct |
75 ms |
13900 KB |
Partially correct |
| 40 |
Correct |
111 ms |
15488 KB |
Output is correct |
| 41 |
Partially correct |
162 ms |
17620 KB |
Partially correct |
