| # |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
| 95207 |
2019-01-28T14:42:39 Z |
Kewo |
007 (CEOI14_007) |
C++14 |
|
328 ms |
48888 KB |
#include <bits/stdc++.h>
#define pb push_back
#define ppb pop_back
#define fi first
#define se second
#define mid ((x + y) / 2)
#define left (ind * 2)
#define right (ind * 2 + 1)
#define mp make_pair
#define timer ((double)clock() / CLOCKS_PER_SEC)
#define endl "\n"
#define spc " "
#define d1(x) cerr<<#x<<":"<<x<<endl
#define d2(x, y) cerr<<#x<<":"<<x<<" "<<#y<<":"<<y<<endl
#define d3(x, y, z) cerr<<#x<<":"<<x<<" "<<#y<<":"<<y<<" "<<#z<<":"<<z<<endl
#define fast_io() ios_base::sync_with_stdio(false);cin.tie(0);cout.tie(0)
using namespace std;
typedef long long int lli;
typedef pair<int, int> ii;
typedef pair<ii, int> iii;
typedef pair<double, double> dd;
const int N = (int)(1e6 + 5);
const int LOG = (int)(20);
int n, m, cs1[N], cs2[N], s, d, a, b, ans;
vector<int> v[N];
void bfs1() {
queue<int> q;
q.push(s);
memset(cs1, -1, sizeof cs1);
cs1[s] = 0;
while(!q.empty()) {
int t = q.front();
q.pop();
for(auto i : v[t]) {
if(cs1[i] == -1) {
cs1[i] = cs1[t] + 1;
q.push(i);
}
}
}
}
void bfs2() {
queue<int> q;
q.push(d);
memset(cs2, -1, sizeof cs1);
cs2[d] = 0;
while(!q.empty()) {
int t = q.front();
q.pop();
for(auto i : v[t]) {
if(cs2[i] == -1) {
cs2[i] = cs2[t] + 1;
q.push(i);
}
}
}
}
int main() {
fast_io();
// freopen("inp.in", "r", stdin);
cin >> n >> m;
cin >> s >> d >> a >> b;
for(int i = 1; i <= m; i++) {
int aa, bb;
cin >> aa >> bb;
v[aa].pb(bb);
v[bb].pb(aa);
}
bfs1();
bfs2();
ans = min(cs2[a] - cs1[a], cs2[b] - cs1[b]);
ans = max(ans, 0);
cout << ans;
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
25 ms |
31736 KB |
Output is correct |
| 2 |
Correct |
25 ms |
31608 KB |
Output is correct |
| 3 |
Correct |
25 ms |
31608 KB |
Output is correct |
| 4 |
Incorrect |
30 ms |
31608 KB |
Output isn't correct |
| 5 |
Incorrect |
30 ms |
31608 KB |
Output isn't correct |
| 6 |
Correct |
30 ms |
31608 KB |
Output is correct |
| 7 |
Correct |
29 ms |
31608 KB |
Output is correct |
| 8 |
Incorrect |
31 ms |
31608 KB |
Output isn't correct |
| 9 |
Correct |
31 ms |
31608 KB |
Output is correct |
| 10 |
Correct |
30 ms |
31608 KB |
Output is correct |
| 11 |
Correct |
30 ms |
31608 KB |
Output is correct |
| 12 |
Incorrect |
29 ms |
31608 KB |
Output isn't correct |
| 13 |
Correct |
29 ms |
31608 KB |
Output is correct |
| 14 |
Incorrect |
30 ms |
31736 KB |
Output isn't correct |
| 15 |
Correct |
29 ms |
31624 KB |
Output is correct |
| 16 |
Incorrect |
28 ms |
31736 KB |
Output isn't correct |
| 17 |
Incorrect |
30 ms |
31608 KB |
Output isn't correct |
| 18 |
Incorrect |
30 ms |
31736 KB |
Output isn't correct |
| 19 |
Correct |
29 ms |
31736 KB |
Output is correct |
| 20 |
Correct |
30 ms |
31708 KB |
Output is correct |
| 21 |
Correct |
30 ms |
31736 KB |
Output is correct |
| 22 |
Correct |
30 ms |
31648 KB |
Output is correct |
| 23 |
Correct |
30 ms |
31736 KB |
Output is correct |
| 24 |
Incorrect |
31 ms |
31736 KB |
Output isn't correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
44 ms |
33400 KB |
Output is correct |
| 2 |
Incorrect |
64 ms |
34256 KB |
Output isn't correct |
| 3 |
Correct |
52 ms |
33528 KB |
Output is correct |
| 4 |
Incorrect |
61 ms |
34296 KB |
Output isn't correct |
| 5 |
Correct |
49 ms |
33400 KB |
Output is correct |
| 6 |
Correct |
51 ms |
33656 KB |
Output is correct |
| 7 |
Correct |
57 ms |
33784 KB |
Output is correct |
| 8 |
Correct |
58 ms |
33780 KB |
Output is correct |
| 9 |
Incorrect |
72 ms |
34688 KB |
Output isn't correct |
| 10 |
Correct |
182 ms |
42972 KB |
Output is correct |
| 11 |
Incorrect |
82 ms |
35576 KB |
Output isn't correct |
| 12 |
Correct |
87 ms |
36772 KB |
Output is correct |
| 13 |
Incorrect |
92 ms |
35960 KB |
Output isn't correct |
| 14 |
Incorrect |
61 ms |
35176 KB |
Output isn't correct |
| 15 |
Correct |
95 ms |
36728 KB |
Output is correct |
| 16 |
Correct |
83 ms |
36984 KB |
Output is correct |
| 17 |
Correct |
74 ms |
36572 KB |
Output is correct |
| 18 |
Incorrect |
78 ms |
36344 KB |
Output isn't correct |
| 19 |
Correct |
150 ms |
38776 KB |
Output is correct |
| 20 |
Incorrect |
238 ms |
44552 KB |
Output isn't correct |
| 21 |
Incorrect |
124 ms |
38836 KB |
Output isn't correct |
| 22 |
Correct |
121 ms |
37752 KB |
Output is correct |
| 23 |
Correct |
131 ms |
38560 KB |
Output is correct |
| 24 |
Correct |
119 ms |
38456 KB |
Output is correct |
| 25 |
Incorrect |
119 ms |
38152 KB |
Output isn't correct |
| 26 |
Correct |
104 ms |
37752 KB |
Output is correct |
| 27 |
Correct |
132 ms |
38776 KB |
Output is correct |
| 28 |
Correct |
118 ms |
38736 KB |
Output is correct |
| 29 |
Correct |
142 ms |
40696 KB |
Output is correct |
| 30 |
Incorrect |
224 ms |
45608 KB |
Output isn't correct |
| 31 |
Incorrect |
126 ms |
39780 KB |
Output isn't correct |
| 32 |
Correct |
113 ms |
38648 KB |
Output is correct |
| 33 |
Correct |
109 ms |
38828 KB |
Output is correct |
| 34 |
Incorrect |
144 ms |
39416 KB |
Output isn't correct |
| 35 |
Incorrect |
135 ms |
38876 KB |
Output isn't correct |
| 36 |
Incorrect |
114 ms |
39160 KB |
Output isn't correct |
| 37 |
Correct |
147 ms |
40248 KB |
Output is correct |
| 38 |
Correct |
126 ms |
40028 KB |
Output is correct |
| 39 |
Correct |
173 ms |
40056 KB |
Output is correct |
| 40 |
Incorrect |
223 ms |
43768 KB |
Output isn't correct |
| 41 |
Correct |
328 ms |
48888 KB |
Output is correct |
