human
Give me a code to arrange given numbers to form the smallest number and the other steps required given the following:
Arrange given numbers to form the smallest number | Utility function to print the contents of an array.
A comparison function that return true if ' AB ' is smaller than ' BA ' when we concatenate two numbers ' A ' and ' B ' For example , it will return true if we pass 12 and 24 as arguments . This function will be used by sort ( ) function.
Convert first number to string format.
Convert second number to string format.
Check if ' AB ' is smaller or ' BA ' and return bool value since comparison operator ' < = ' returns true or false.
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Function to print the arrangement with the smallest value.
If we pass the name of the comparison function it will sort the array according to the compare function.
Print the sorted array.
Driver code"
How can the above be solved in Python?
assistant
#Here is code to arrange given numbers to form the smallest number and the other steps required.
 def printArr ( arr , n ) :
	for i in range ( 0 , n ) :
		print ( arr [ i ] , end = " " )
def compare ( num1 , num2 ) :
	A = str ( num1 )
	B = str ( num2 )
	return int ( A + B ) <= int ( B + A )
def sort ( arr ) :
	for i in range ( len ( arr ) ) :
		for j in range ( i + 1 , len ( arr ) ) :
			if compare ( arr [ i ] , arr [ j ] ) == False :
				arr [ i ] , arr [ j ] = arr [ j ] , arr [ i ]
def printSmallest ( N , arr ) :
	sort ( arr )
	printArr ( arr , N )
if __name__ == " _ _ main _ _ " :
	arr = [ 5 , 6 , 2 , 9 , 21 , 1 ]
	N = len ( arr )
	printSmallest ( N , arr )