#write a function in_list that has two parameters - list of integers and 
#additional number
#function returns True if the number in the list and False otherwise

#write a function random_list that has 4 parameters: list, size, min and 
#max - this function populate the list of size with random integers 
#between min and max

#write main that randomly generates list of 10 integers, range -2 and 2 
#(use function random_list to do this)
#program prints the list
#program will ask user to enter an integer
#program will find an index of the input number in the list (first occurance), 
#if the number 
#in the list, and print error message otherwise

#Example: 
#Random list: 1 2 1 0 -1 -2 0 1 1 2
#Additional number is 5
#Program prints 5 is not in the list
#Additional number is 1
#Program prints the index of 1 is 0

import random

def random_list(my_list, size, min, max):
	for i in range(size):
		my_list[i]=random.randint(min, max)
	#lists in Python are REFERENCE PARAMETERS
	#it means that function can change the list elements and changes 
	#will be preserved

def in_list(my_list, num):
	if(num in my_list):
		return True
	else:
		return False

def main():
	my_list=[0]*10
	print("list before function random_list is called")
	print(my_list) #this will print 0 0 0 0 0 0 0 0 0 0 
	#function call
	random_list(my_list, 10, -2, 2)
	print("list AFTER function random_list is called")
	print(my_list)
	num=int(input("enter num to find its index in the list "))
	if(in_list(my_list, num)==True):
		print("index of", num,"is", my_list.index(num))
	else:
		print(num,"not in the list")
	
main()