Driver code
public static void main ( String [ ] args ) { int mat [ ] [ ] = { { 10 , 20 , 10 } , { - 20 , - 30 , 10 } , { 30 , 50 , 0 } } ; System . out . print ( " Rank ▁ of ▁ the ▁ matrix ▁ is ▁ : ▁ " + rankOfMatrix ( mat ) ) ; } }