Testcase query
Shouldn't be the answer for the below testcase be 4? [[1,0,0,0,0,0,0,0,0],[0,1,0,0,0,0,0,0,0],[0,0,1,0,1,0,1,0,0],[0,0,0,1,0,0,0,0,0],[0,0,1,0,1,0,0,0,0],[0,0,0
Shouldn't be the answer for the below testcase be 4?
```
[[1,0,0,0,0,0,0,0,0],[0,1,0,0,0,0,0,0,0],[0,0,1,0,1,0,1,0,0],[0,0,0,1,0,0,0,0,0],[0,0,1,0,1,0,0,0,0],[0,0,0,0,0,1,0,0,0],[0,0,1,0,0,0,1,0,0],[0,0,0,0,0,0,0,1,0],[0,0,0,0,0,0,0,0,1]]
[6,0,4]
```
Reach of all the nodes is as follows:
[]
[]
[4, 6]
[]
[2]
[]
[2]
[]
[]
Since 0 is not connected to any other node, how removing 0 will minimize the spread of malware?

[]