human
Count of pairs with sum N from first N natural numbers | Function to calculate the value of count.
If n is even.
Count of pairs.
Otherwise.
Driver code"
Solution in Python:
assistant
#Here is code to count of pairs with sum N from first N natural numbers and the other steps required.
 def numberOfPairs ( n ) :
	if ( n % 2 == 0 ) :
		return n // 2 - 1 ;
	else :
		return n // 2 ;
n = 8 ;
print ( numberOfPairs ( n ) ) ;