Can somebody explain me this test
input
-1 1 0
1 -1 -1
0 1 -1
output
0 0 1
3 0 3
1 0 0

Any body????

If some captain tells the truth, then for each cell of his row:
A[i,j]==-1 || A[i,j] == (bool)B[i][j]

If some captain lies, then for each cell of his row:
A[i,j]==-1 || A[i][j] != (bool)B[i][j]

Matrix B must be such that every pair B[i][j], B[j][i] is one of three forms:
1,1 0,3 3,0

(bool)x = 0 if x=0, and 1 otherwise

So, for that test: 1st and 3rd captains lie. The 2nd tells the truth. This is not necessarily the only possible distribution of truths and lies.