# """

# 10

# WRITE A FUNCTION WHICH TAKES AN INTEGER AS AN ARGUMENT

# AND DECREASE ONE STEP AT A TIME AND PRINT THE RESULT

# 10

# 9

# 8

# 7

# 6

# 5

# 4

# 3

# 2

# 1

# """

# def negative_step_func(a):

# for i in range(a):

# print (a)

# a-=1

# def negative_step_func(a):

# for i in range(a,0,-1):

# print (i)

# # negative_step_func(5)

# def negative_step_recurv_func(a):

# a-=1

# print (a)

# if (a>0):

# negative_step_recurv_func(a) # recursive function call based on condition

# # negative_step_recurv_func(10) # normal function call

# # factorial of a number using recursion

result = 1

# # 7*6*5*4*2*1

def factorial_of_a_number_using_recursion(result,a):

result*=a

a-=1

print (result)

if (a>0):

factorial_of_a_number_using_recursion(result,a) #recursive function call

# factorial_of_a_number_using_recursion(result,7) # function call

# def recur_func(a):

# if a == 1:

# return a

# return a*recur_func(a-1)

# print (recur_func(7))

# Write a program to add a number to itself till it reaches a maximum value

maximum_value = 60

start_number = 1

def add_number(number): # 1

number+=number # business logic -> 2

if (number < maximum_value): # True

print (number) # 40

add_number(number) # recursion function call with 40

print ("hello")

# add_number(start_number) # normal function call

# write a program to add squares of a number to list till it reaches maximum value

#[1,4,9,16,25.....100]

start_number = 1

maximum_value = 10

list_variable = []

def squaring_numbers(number): # 1

square_of_a_number = pow(number,2) # squaring a number 1

list_variable.append(square_of_a_number) # adding the result to the list [1]

if (number < maximum_value): # checking for the recusion condition True

print (number) # 1

number = number + 1

squaring_numbers(number) # recursion function call

squaring_numbers(start_number) # function call

print (list_variable)

"""

[room 1 [room 2 [room 3] ] ]

enter a room 1

switch off tv 1

entering room 2

switch off tv 2

entering room 3

swtich off tv 3

switch off ac 3

switch off ac 2

switch off ac 1

"""

# def add_number(number):

# if (number > maximum_value):

# return number

# return add_number(number+number)

# print (add_number(start_number))