program to check whether a number falls in a given range:¶

In [1]:
def test_range(n):
    if n in range(3,9):
        print( " %s is in the range"%str(n))
    else :
            print("the number is outside the given range.")
test_range(5)

 5 is in the range

2 Reducing the number of cards by half:¶

In [2]:
cards=eval(input("how many cards do you have? "))
print("after reducing, you have :",cards//2 ,'cards')

how many cards do you have? 8
after reducing, you have : 4 cards

3 Generating a random number:¶

In [3]:
from random import randint

num = eval(input('Enter a positive integer: '))

num_times = randint(num, num+10)

for i in range(num_times):
    print('A', end='')
print()

Enter a positive integer: 10
AAAAAAAAAAAAA

4 finding user's total bill based on starting and ending hours with service charges being 5.50 dollars/hour:¶

In [4]:
start = eval(input('Enter starting hour (0-23): '))
end = eval(input('Enter ending hour (0-23): '))
if end >= start:
    print('Total: ', (end-start)*5.50)
else:
    print('Total: ', (24-start + end)*5.50)
    

Enter starting hour (0-23): 8
Enter ending hour (0-23): 16
Total:  44.0

5 program to find the probability of rolling doubles with two dice:¶

In [5]:
from random import randint

count = 0
for i in range(10000):
    r1 = randint(1, 6)
    r2 = randint(1, 6)
    if r1 == r2:
        count += 1
print('Percentage of doubles:', 100*count/10000)

Percentage of doubles: 17.27
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