human
Sum of N | Function to calculate the sum recursively.
Base cases.
If n is odd.
If n is even.
Function to print the value of Sum.
Driver Program.
first element.
common difference.
Number of elements.
Mod value"
How can the above be solved in Python?
assistant
#Here is code to sum of N and the other steps required.
 def SumGPUtil ( r , n , m ) :
	if n == 0 : return 1
	if n == 1 : return ( 1 + r ) % m
	if n % 2 == 1 :
		ans = ( 1 + r ) * SumGPUtil ( r * r % m , ( n - 1 ) // 2 , m )
	else :
		ans = 1 + r * ( 1 + r ) * SumGPUtil ( r * r % m , n // 2 - 1 , m )
	return ans % m
def SumGP ( a , r , N , M ) :
	answer = a * SumGPUtil ( r , N , M )
	answer = answer % M
	print ( answer )
if __name__ == ' _ _ main _ _ ' :
a = 1
r = 4
N = 10000
M = 100000
	SumGP ( a , r , N , M )