Loop practice questions in Python - Level 1

WAP stands for Write A Program

1. WAP to print the first and last character of all the names in the given list
   l = ['Mayank', 'Aniket', 'Saurabh', 'Rahul']
   Expected output:
   M k
   A t
   S h
   R l
   ………………………………
2. Write a Python program that takes two inputs from the user:
   An integer n representing the number of whole numbers (starting from 0).
   An integer p representing the power to which each whole number should be raised.
   The program should print the powers of the first n whole numbers.

   Example Input:
   Enter the value of n: 5
   Enter the value of p: 2
   Example Output:
   0^2 = 0
   1^2 = 1
   2^2 = 4
   3^2 = 9
   4^2 = 16
   5^2 = 25
   ………………………………

3. WAP to print the data type of each element in the given tuple.
   t = ('Someone', 34, 'hi', 12.983, 34 +9j)

   Expected Output:
   Someone, Type: <class ‘str’>
   34, Type: <class ‘int’>
   hi, Type: <class ‘str’>
   12.983, Type: <class ‘float’>
   (34+9j), Type: <class ‘complex’>
   ………………………………
4. WAP to print all the two digit even numbers which are also a multiple of 3.
   Expected Output:
   12 18 24 30 36 42 48 54 60 66 72 78 84 90 96
   ………………………………
5. WAP to print the sum of individual tuples separately.
   marksList = [(23, 24, 31), (56, 34, 53), (42, 58, 31)]
   Expected Output:
   Sum of (23, 24, 31) = 78
   Sum of (56, 34, 53) = 143
   Sum of (42, 58, 31) = 131
   ………………………………
6. Write a Python program to print all numbers between 30 and 300 that are multiples of both 2 and 7.
   Expected output:
   42 56 70 84 98 112 126 140 154 168 182 196 210 224 238 252 266 280 294
   ………………………………
7. t = (23, 45, 67, 90, 12, 10)
   WAP to print even or odd for all the numbers in the given tuple.
   Expected Output:
   23 – Odd
   45 – Odd
   67 – Odd
   90 – Even
   12 – Even
   10 – Even
   ………………………………
8. Write a Python program that takes a string input from the user and reverses it.
   Note: Don’t use slicing
    Example Input: Enter a string: Python
   Expected Output: Reversed string: nohtyP
   ………………………………
9. t = (23, 45, 67, 90, 12, 10)
   WAP to print the 2nd digit of all the numbers from this given collection.
   Note: If a number has only one digit, print "No second digit".
   Expected Output:
   23 → 3
   45 → 5
   67 → 7
   90 → 0
   12 → 2
   10 → 0
   ………………………………
10. WAP to print all the numerical data from the given list.
    l = [2, 5, 'a', 5, 'r', 7, 'm', 't', '4']
    Expected Output:
    2
    5
    5
    7
    4
    ………………………………
11. WAP in Python to calculate the sum of all numbers from 1 to n.
    Take n as input from the user.
    Example Input: Enter the value of n: 5
    Example Output: Sum of numbers from 1 to 5 = 15
    ………………………………
12. Write a Python program that takes a number as input from the user and counts the total number of digits in the number.
    Example Input: Enter a number: 78645
    Example Output: Total number of digits: 5
    ………………………………

13. Write a Python program that takes a number as input from the user and calculates its factorial.
    (Factorial of n is the product of all positive integers from 1 to n, denoted as n!.)
    Example Input: Enter a number: 5
    Example Output: Factorial of 5 is 120
    ………………………………

14. Print the following pattern using a loop.
    Take the number of rows as input from the user.
    5 4 3 2 1
    4 3 2 1
    3 2 1
    2 1
    1
    Example Input 1: Enter the number of rows: 5
    Example Output 1: 
    5 4 3 2 1
    4 3 2 1
    3 2 1
    2 1
    1
    Example Input 2: Enter the number of rows: 3
    Example Output 2: 
    3 2 1
    2 1
    1