Python tasks-4

Task - Secret VIP Numbers

A security system assigns special numbers to the first few VIP lockers.A number is considered a VIP number if it can be divided exactly by only 1 and itself.The security officer wants the numbers of the first 5 VIP lockers.Write a Python program to display those 5 numbers.
ExpectedResult: 2, 3, 5, 7, 11

Program:

def find_vip_number(no):
    div = 2
    while div <= no//2:
        if no % div == 0:
            return 'not VIP'
        div+=1
    else:
        return 'VIP'
no = 2
count = 0
while count < 5:
    result = find_vip_number(no)
    if result == 'VIP':
        print(no)
        count+=1
    no = no+1

Flowchart:

Output:
2
3
5
7
11

Task - The Special Numbers

A teacher is preparing a Number Exhibition for students. She writes the numbers 1 to 20 on 20 cards. She wants to select only the special cards. A card is special if its number can be divided exactly by only two numbers: 1 and the number itself.

The teacher asks the students:
“Check all the cards from 1 to 20 and display the numbers that are special.”

Program:

def find_vip_number(no):
    div = 2
    while div <= no//2:
        if no % div == 0:
            return 'not VIP'
        div+=1
    else:
        return 'VIP'
no = 1
while no <= 20:
    result = find_vip_number(no) 
    if result == 'VIP':
        print(no)
    no = no+1

Output:
1
2
3
5
7
11
13
17
19

Task - You have Rs. 100 /- One chocolate costs Rs. 5. Every time you buy a chocolate, you get one wrapper. You can exchange 3 wrappers for 1 additional chocolate. What is the maximum number of chocolates you can have with Rs. 100?

Program:

chocolate   = 20
wrapper     = 20

while wrapper >= 3:
    wrapper = wrapper - 3
    chocolate = chocolate + 1
    wrapper = wrapper + 1
else:
    print(chocolate)

Flowchart:

Output:
29

Task - There is one person called Viyan. He is a Software Engineer. He employs a maid for cooking. One day, the maid prepared n number of chapathis and kept in a hot box. Viyan ate those chapathis and the count is as follows:

• For Morning breakfast, he completed 1/3 number of chapathis in the hot box.
• For Lunch, He had 1/3 of what was there in the hot box.
• For Dinner, again he took and ate 1/3 number of chapathis present in the box.
• The next day morning, When the maid checked the number of chapathis remaining, it was 8. What was the number of chapathis, She made - in total?

Program:

balance = 8
number = 1
while(number <= 3):
     total = balance // 2
     balance = balance + total
     number = number + 1
else:
    print(balance)

Flowchart:

Output:
27