human
Give me a code to group multiple occurrence of array elements ordered by first occurrence and the other steps required given the following:
Group multiple occurrence of array elements ordered by first occurrence | A hashing based method to group all occurrences of individual elements.
Creates an empty hashmap.
Traverse the array elements , and store count for every element in HashMap.
Increment count of elements in HashMap.
Traverse array again.
Check if this is first occurrence.
If yes , then print the element ' count ' times.
And remove the element from HashMap ..
Driver Code"
How can the above be solved in Python?
assistant
#Here is code to group multiple occurrence of array elements ordered by first occurrence and the other steps required.
 def orderedGroup ( arr ) :
	hM = { }
	for i in range ( 0 , len ( arr ) ) :
		hM [ arr [ i ] ] = hM . get ( arr [ i ] , 0 ) + 1
	for i in range ( 0 , len ( arr ) ) :
		count = hM . get ( arr [ i ] , None )
		if count != None :
			for j in range ( 0 , count ) :
				print ( arr [ i ] , end = " ▁ " )
			del hM [ arr [ i ] ]
if __name__ == " _ _ main _ _ " :
	arr = [ 10 , 5 , 3 , 10 , 10 , 4 , 1 , 3 ]
	orderedGroup ( arr )