human
Non | Python3 program to find first non - repeating element ..
Driver code"
Solution in Python:

Write me a code to non and the other steps required?
assistant
#Here is code to non and the other steps required.
 def firstNonRepeating ( arr , n ) :
	for i in range ( n ) :
		j = 0
		while ( j < n ) :
			if ( i != j and arr [ i ] == arr [ j ] ) :
				break
			j += 1
		if ( j == n ) :
			return arr [ i ]
	return - 1
arr = [ 9 , 4 , 9 , 6 , 7 , 4 ]
n = len ( arr )
print ( firstNonRepeating ( arr , n ) )