| # |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
| 613808 |
2022-07-30T11:22:38 Z |
andrei_boaca |
007 (CEOI14_007) |
C++14 |
|
1000 ms |
20280 KB |
#include <bits/stdc++.h>
using namespace std;
int n,m,s,d,a,b;
vector<int> muchii[200005];
int dist[6][200005];
bool use[200005];
void bfs(int start,int index)
{
for(int i=1;i<=n;i++)
dist[index][i]=1e9;
dist[index][start]=0;
queue<int> coada;
coada.push(start);
while(!coada.empty())
{
int nod=coada.front();
coada.pop();
for(int i:muchii[nod])
if(dist[index][i]>dist[index][nod]+1)
{
dist[index][i]=dist[index][nod]+1;
coada.push(i);
}
}
}
void dfs(int nod,int bad)
{
use[nod]=1;
for(int i:muchii[nod])
if(!use[i]&&i!=bad)
dfs(i,bad);
}
int main()
{
ios_base::sync_with_stdio(false);
cin.tie(0);
cin>>n>>m>>s>>d>>a>>b;
for(int i=1;i<=m;i++)
{
int x,y;
cin>>x>>y;
muchii[x].push_back(y);
muchii[y].push_back(x);
}
bfs(a,1);
bfs(b,2);
bfs(d,3);
bfs(s,4);
int minim=1e9;
for(int i=1;i<=n;i++)
{
bool good;
if((dist[1][i]+1>=dist[1][s]&&dist[2][i]+1>=dist[2][s])||dist[4][i]<=1)
good=1;
else
{
bfs(i,5);
good=0;
for(int j=1;j<=n;j++)
if(j!=i)
{
for(int k=1;k<=n;k++)
use[k]=0;
dfs(i,j);
if(use[a]||use[b])
continue;
if(dist[4][j]<=dist[5][j]+1)
good=1;
break;
}
}
if(!good)
minim=min(minim,dist[3][i]-2);
}
cout<<max(-1,minim);
return 0;
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
3 ms |
4948 KB |
Output is correct |
| 2 |
Correct |
2 ms |
4948 KB |
Output is correct |
| 3 |
Correct |
5 ms |
4976 KB |
Output is correct |
| 4 |
Incorrect |
4 ms |
4948 KB |
Output isn't correct |
| 5 |
Incorrect |
7 ms |
4948 KB |
Output isn't correct |
| 6 |
Correct |
3 ms |
4948 KB |
Output is correct |
| 7 |
Correct |
3 ms |
4948 KB |
Output is correct |
| 8 |
Incorrect |
6 ms |
5048 KB |
Output isn't correct |
| 9 |
Correct |
57 ms |
4948 KB |
Output is correct |
| 10 |
Correct |
38 ms |
5044 KB |
Output is correct |
| 11 |
Correct |
37 ms |
5032 KB |
Output is correct |
| 12 |
Incorrect |
511 ms |
5064 KB |
Output isn't correct |
| 13 |
Execution timed out |
1080 ms |
5076 KB |
Time limit exceeded |
| 14 |
Incorrect |
35 ms |
5040 KB |
Output isn't correct |
| 15 |
Correct |
61 ms |
5044 KB |
Output is correct |
| 16 |
Incorrect |
376 ms |
5076 KB |
Output isn't correct |
| 17 |
Execution timed out |
1086 ms |
5076 KB |
Time limit exceeded |
| 18 |
Execution timed out |
1086 ms |
5076 KB |
Time limit exceeded |
| 19 |
Execution timed out |
1090 ms |
5076 KB |
Time limit exceeded |
| 20 |
Execution timed out |
1097 ms |
5076 KB |
Time limit exceeded |
| 21 |
Execution timed out |
1089 ms |
5076 KB |
Time limit exceeded |
| 22 |
Execution timed out |
1089 ms |
5076 KB |
Time limit exceeded |
| 23 |
Execution timed out |
1088 ms |
5076 KB |
Time limit exceeded |
| 24 |
Execution timed out |
1078 ms |
5076 KB |
Time limit exceeded |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Execution timed out |
1070 ms |
7372 KB |
Time limit exceeded |
| 2 |
Execution timed out |
1079 ms |
8712 KB |
Time limit exceeded |
| 3 |
Execution timed out |
1087 ms |
7620 KB |
Time limit exceeded |
| 4 |
Execution timed out |
1078 ms |
8912 KB |
Time limit exceeded |
| 5 |
Execution timed out |
1067 ms |
7424 KB |
Time limit exceeded |
| 6 |
Execution timed out |
1072 ms |
8068 KB |
Time limit exceeded |
| 7 |
Execution timed out |
1081 ms |
8584 KB |
Time limit exceeded |
| 8 |
Execution timed out |
1072 ms |
8268 KB |
Time limit exceeded |
| 9 |
Execution timed out |
1086 ms |
8756 KB |
Time limit exceeded |
| 10 |
Execution timed out |
1086 ms |
13148 KB |
Time limit exceeded |
| 11 |
Execution timed out |
1080 ms |
10496 KB |
Time limit exceeded |
| 12 |
Execution timed out |
1087 ms |
11468 KB |
Time limit exceeded |
| 13 |
Execution timed out |
1047 ms |
10740 KB |
Time limit exceeded |
| 14 |
Execution timed out |
1083 ms |
9960 KB |
Time limit exceeded |
| 15 |
Execution timed out |
1080 ms |
11808 KB |
Time limit exceeded |
| 16 |
Execution timed out |
1083 ms |
12320 KB |
Time limit exceeded |
| 17 |
Execution timed out |
1089 ms |
12748 KB |
Time limit exceeded |
| 18 |
Execution timed out |
1069 ms |
11848 KB |
Time limit exceeded |
| 19 |
Execution timed out |
1083 ms |
13624 KB |
Time limit exceeded |
| 20 |
Execution timed out |
1085 ms |
15944 KB |
Time limit exceeded |
| 21 |
Execution timed out |
1085 ms |
14704 KB |
Time limit exceeded |
| 22 |
Execution timed out |
1088 ms |
13168 KB |
Time limit exceeded |
| 23 |
Execution timed out |
1080 ms |
14984 KB |
Time limit exceeded |
| 24 |
Execution timed out |
1086 ms |
14432 KB |
Time limit exceeded |
| 25 |
Execution timed out |
1085 ms |
13760 KB |
Time limit exceeded |
| 26 |
Execution timed out |
1095 ms |
13660 KB |
Time limit exceeded |
| 27 |
Execution timed out |
1091 ms |
16188 KB |
Time limit exceeded |
| 28 |
Execution timed out |
1052 ms |
14868 KB |
Time limit exceeded |
| 29 |
Execution timed out |
1081 ms |
15088 KB |
Time limit exceeded |
| 30 |
Execution timed out |
1080 ms |
16940 KB |
Time limit exceeded |
| 31 |
Execution timed out |
1079 ms |
16276 KB |
Time limit exceeded |
| 32 |
Execution timed out |
1094 ms |
14096 KB |
Time limit exceeded |
| 33 |
Execution timed out |
1084 ms |
15044 KB |
Time limit exceeded |
| 34 |
Execution timed out |
1081 ms |
14888 KB |
Time limit exceeded |
| 35 |
Execution timed out |
1054 ms |
15276 KB |
Time limit exceeded |
| 36 |
Execution timed out |
1085 ms |
15760 KB |
Time limit exceeded |
| 37 |
Execution timed out |
1081 ms |
16884 KB |
Time limit exceeded |
| 38 |
Execution timed out |
1082 ms |
18204 KB |
Time limit exceeded |
| 39 |
Execution timed out |
1073 ms |
16720 KB |
Time limit exceeded |
| 40 |
Execution timed out |
1084 ms |
18376 KB |
Time limit exceeded |
| 41 |
Execution timed out |
1080 ms |
20280 KB |
Time limit exceeded |
