human
Replace every element in a circular array by sum of next K elements | Function to print required resultant array.
Reverse the array.
Traverse the range.
Store prefix sum.
Find the prefix sum.
Store the answer.
Calculate the answers.
Count of remaining elements.
Add the sum of all elements y times.
Add the remaining elements.
Update ans [ i ].
If array is reversed print ans in reverse.
Driver Code.
Given array arr.
Given K.
Function"
How can the above be solved in Python?
 ... What is a code to replace every element in a circular array by sum of next K elements and the other steps required?
assistant
#Here is code to replace every element in a circular array by sum of next K elements and the other steps required.
 def sumOfKElements ( arr , n , k ) :
	rev = False ;
	if ( k < 0 ) :
		rev = True ;
		k *= - 1 ;
		l = 0 ;
		r = n - 1 ;
		while ( l < r ) :
			tmp = arr [ l ] ;
			arr [ l ] = arr [ r ] ;
			arr [ r ] = tmp ;
			l += 1 ;
			r -= 1 ;
	dp = [ 0 ] * n ;
	dp [ 0 ] = arr [ 0 ] ;
	for i in range ( 1 , n ) :
		dp [ i ] += dp [ i - 1 ] + arr [ i ] ;
	ans = [ 0 ] * n ;
	for i in range ( n ) :
		if ( i + k < n ) :
			ans [ i ] = dp [ i + k ] - dp [ i ] ;
		else :
			x = k - ( n - 1 - i ) ;
			y = x // n ;
			rem = x % n ;
			ans [ i ] = ( dp [ n - 1 ] - dp [ i ] + y * dp [ n - 1 ] + ( dp [ rem - 1 ] if rem - 1 >= 0 else 0 ) ) ;
	if ( rev ) :
		for i in range ( n - 1 , - 1 , - 1 ) :
			print ( ans [ i ] , end = " ▁ " ) ;
	else :
		for i in range ( n ) :
			print ( ans [ i ] , end = " ▁ " ) ;
if __name__ == ' _ _ main _ _ ' :
	arr = [ 4 , 2 , - 5 , 11 ] ;
	N = len ( arr ) ;
	K = 3 ;
	sumOfKElements ( arr , N , K ) ;