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Number of loops of size k starting from a specific node | Return the Number of ways from a node to make a loop of size K in undirected complete connected graph of N nodes.
Driver code"
Solution in Python:
assistant
#Here is code to number of loops of size k starting from a specific node and the other steps required.
 def numOfways ( n , k ) :
	p = 1
	if ( k % 2 ) :
		p = - 1
	return ( pow ( n - 1 , k ) + p * ( n - 1 ) ) / n
n = 4
k = 2
print ( numOfways ( n , k ) )