1. Write a function to check whether a number falls in a given range

def check_num_in_range(range_start, range_end, num):
    if num >= range_start and num <= range_end:
        return f'{num} in range {range_start} and {range_end}'
    else:
        return f'{num} NOT in range {range_start} and {range_end}'
    
num = int(input('Enter a number: '))

check_num_in_range(1, 100, num)

'211 NOT in range 1 and 100'

2. Some board games require you to reduce the number of cards you are holding by half, rounded down. For instance, if you have 10 cards, you would reduce to 5 and if you had 11 cards you would also reduce to 5. With 12 cards you would reduce to 6. Write a program that asks the user to enter. how many cards they have and print out what their hand would reduce to under this rule.

def round_by_half(num):
    rounded_num = int(num/2)
    return f'Your number {num} rounded to {rounded_num}'

num = int(input('Enter no of cards being held: '))
round_by_half(num)

'Your number 14 rounded to 7'

3. Write a program that asks the user to enter a positive integer. Then generate a random number between

that number and 10 more than that number and print the letter A that many times on the same

line.

import random

def gen_random_num_and_A(num):
    random_num = random.randint(num, num+10)
    random_num_As = random_num * 'A'
    print(f'generated random number: {random_num}, {random_num_As}')
    
num = int(input('Enter number: '))
gen_random_num_and_A(num)

generated random number: 14, AAAAAAAAAAAAAA

4. This is a very simple billing program. Ask the user for a starting hour and ending hour, both given in

24-hour format (e.g., 1 pm is 13, 2 pm is 14, etc.). The charge to use the service is $5.50 per hour. Print

out the user’s total bill. You can assume that the service will be used for at least 1 hour and never

more than 23 hours. Be careful to take care of the case that the starting hour is before midnight and

the ending time is after midnight.

import sys

def check_time_range(time): #, start_time):
    # if start_time:
    if time > 23 or time < 0:
        print('Start time should be in the range of 0-23 hours!')
        sys.exit(-1)
        

start_time = int(input('Enter start hour in 24 hour format: '))
check_time_range(start_time)
end_time = int(input('Enter end hour in 24 hour format: '))
check_time_range(end_time)

price = (end_time - start_time) * 5.50

print(f'Total bill: ${price}')

Total bill: $126.5

5. One way to estimate probabilities is to run what is called a computer simulation. Here we will estimate

the probability of rolling doubles with two dice (where both dice come out to the same value). To

do this, run a loop 10,000 times in which random numbers are generated representing the dice and

a count is kept of how many times doubles appear. Print out the final percentage of rolls that are

doubles.

import random

doubles_count = 0

for i in range(10000):
    dice1 = random.randint(1, 6)
    dice2 = random.randint(1, 6)
    
    if dice1 == dice2:
        doubles_count += 1

doubles_percentage = (doubles_count/10000) * 100
doubles_percentage

16.74