human
What is a code to count number of ways to arrange first N numbers and the other steps required given the following:
Count number of ways to arrange first N numbers | Function to return the count of required arrangements.
Create the dp array.
Initialize the base cases as explained above.
( 12 ) as the only possibility.
Generate answer for greater values.
dp [ n ] contains the desired answer.
Driver code"
Solution in Python:
assistant
#Here is code to count number of ways to arrange first N numbers and the other steps required.
 def countWays ( n ) :
	dp = [ 0 for i in range ( n + 1 ) ]
	dp [ 0 ] = 0
	dp [ 1 ] = 1
	dp [ 2 ] = 1
	for i in range ( 3 , n + 1 ) :
		dp [ i ] = dp [ i - 1 ] + dp [ i - 3 ] + 1
	return dp [ n ]
n = 6
print ( countWays ( n ) )