Driver code
let n = 3 ; let mat = [ [ 3 , 2 , 1 ] , [ 9 , 8 , 7 ] , [ 6 , 5 , 4 ] ] ; document . write ( " " ) ; printMat ( mat , n ) ; sortMatRowAndColWise ( mat , n ) ; document . write ( " " + " " ) ; printMat ( mat , n ) ;