human
Predict the winner of the game on the basis of absolute difference of sum by selecting numbers | Function to decide the winner.
Iterate for all numbers in the array.
If mod gives 0.
If mod gives 1.
If mod gives 2.
If mod gives 3.
Check the winning condition for X.
Driver code"
Solution in Python:

What is a code to predict the winner of the game on the basis of absolute difference of sum by selecting numbers and the other steps required?
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#Here is code to predict the winner of the game on the basis of absolute difference of sum by selecting numbers and the other steps required.
 def decideWinner ( a , n ) :
	count0 = 0
	count1 = 0
	count2 = 0
	count3 = 0
	for i in range ( n ) :
		if ( a [ i ] % 4 == 0 ) :
			count0 += 1
		elif ( a [ i ] % 4 == 1 ) :
			count1 += 1
		elif ( a [ i ] % 4 == 2 ) :
			count2 += 1
		elif ( a [ i ] % 4 == 3 ) :
			count3 += 1
	if ( count0 % 2 == 0 and count1 % 2 == 0 and count2 % 2 == 0 and count3 == 0 ) :
		return 1
	else :
		return 2
a = [ 4 , 8 , 5 , 9 ]
n = len ( a )
if ( decideWinner ( a , n ) == 1 ) :
	print ( " X ▁ wins " )
else :
	print ( " Y ▁ wins " )