function to sort each row of the matrix according to the order specified by descending .
def sortByRow ( mat , n , descending ) : NEW_LINE INDENT for i in range ( n ) : NEW_LINE INDENT if ( descending == True ) : NEW_LINE INDENT mat [ i ] . sort ( reverse = True ) NEW_LINE DEDENT else : NEW_LINE INDENT mat [ i ] . sort ( ) NEW_LINE DEDENT DEDENT DEDENT