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Python if‑elif‑else Exercises – Practice Conditional Logic

Practice Python if‑elif‑else statements with beginner-friendly exercises. Strengthen your understanding of conditional logic, syntax, and control flow with hands-on coding problems.

Topic: if-elif-else

🧪 Coding Exercises

🟢 Beginner Exercises

  1. ✅ FizzBuzz
    2. Write a program that prints the numbers from 1 to n. 
- But for multiples of 3, print "Fizz" instead of the number
- and for the multiples of 5, print "Buzz". 
- For numbers which are multiples of both 3 and 5, print "FizzBuzz".

    Requirements

    • Use if-elif-else structure
    • Handle numbers from 1 to n inclusive

    Input

    15

    Expected Output

    1
2
Fizz
4
Buzz
Fizz
7
8
Fizz
Buzz
11
Fizz
13
14
FizzBuzz
  2. ✅ Check Positive, Negative, or Zero
    3. Write a program to check if a number is positive, negative, or zero.

    Requirements

    • Use if-elif-else structure
    • Handle all three cases

    Input

    -5

    Expected Output

    Negative
  3. ✅ Even or Odd
    4. Write a program to check if a number is even or odd.

    Requirements

    • Use if-else structure
    • Handle both cases

    Input

    7

    Expected Output

    Odd
  4. ✅ Largest of Three Numbers
    5. Write a program to find the largest of three numbers.

    Requirements

    • Use if-elif-else structure
    • Handle all possible cases

    Input

    5
9
2

    Expected Output

    9
  5. ✅ Grade Assignment
    6. Write a program to assign grades based on the score:
- A (90-100)
- B (80-89)
- C (70-79)
- D (60-69)
- F (<60)

    Requirements

    • Use if-elif-else structure
    • Handle edge cases

    Input

    85

    Expected Output

    B
  6. ✅ Age Group Classification
    7. Write a program to classify age into:
- Child (0-12)
- Teenager (13-19)
- Adult (20-64)
- Senior (65+)

    Requirements

    • Use if-elif-else structure
    • Handle all age ranges

    Input

    25

    Expected Output

    Adult
  7. ✅ Temperature Description
    8. Write a program to describe the temperature:
- Hot (>30°C)
- Warm (20-30°C)
- Cold (<20°C)

    Requirements

    • Use if-elif-else structure
    • Handle all temperature ranges

    Input

    25.5

    Expected Output

    Warm
  8. ✅ Voter Eligibility
    9. Write a program to check if a person is eligible to vote (18+ years).

    Requirements

    • Use if-else structure
    • Handle edge case (exactly 18)

    Input

    17

    Expected Output

    Not eligible
  9. ✅ Password Strength Checker
    10. Write a program to check the strength of a password:
- Weak (length <6)
- Medium (6-10 characters)
- Strong (>10 characters)

    Requirements

    • Use if-elif-else structure
    • Check only length for simplicity

    Input

    password123

    Expected Output

    Strong
  10. ✅ Day of the Week
    11. Write a program to print the day of the week based on a number (1-7).

    Requirements

    • Use if-elif-else structure
    • Handle invalid inputs

    Input

    3

    Expected Output

    Wednesday
  11. ✅ Discount Calculator
    12. Write a program to calculate the discount on a product:
- 10% if price >=1000
- 5% if price >=500
- No discount otherwise

    Requirements

    • Use if-elif-else structure
    • Calculate final price after discount

    Input

    750

    Expected Output

    712.5
  12. ✅ Character Checker
    13. Write a program to check if a character is a vowel or consonant.

    Requirements

    • Use if-elif-else structure
    • Handle both uppercase and lowercase

    Input

    E

    Expected Output

    Vowel
  13. ✅ Valid Triangle Checker
    14. Write a program to check if three given lengths can form a triangle.
(Sum of any two sides must be greater than the third)

    Requirements

    • Use if-else structure with logical operators
    • Check all three conditions

    Input

    3
4
5

    Expected Output

    Valid triangle
  14. ✅ Multiples of Five
    15. Write a program to check if a number is a multiple of five.

    Requirements

    • Use if-else structure
    • Handle both cases

    Input

    25

    Expected Output

    Multiple of five
  15. ✅ Alphabet Case Checker
    16. Write a program to check if an alphabet is uppercase or lowercase.

    Requirements

    • Use if-else structure
    • Handle non-alphabet inputs

    Input

    H

    Expected Output

    Uppercase
  16. ✅ Basic Grade Classifier
    17. Write a program that:
1. Takes a numerical score as input (0-100)
2. Prints the grade based on:
   - A (90-100)
   - B (80-89)
   - C (70-79)
   - D (60-69)
   - F (<60)

    Requirements

    • Use if-elif-else structure
    • Handle edge cases (scores exactly at boundaries)

    Input

    85

    Expected Output

    Grade: B

    📚 Python if statements

  17. ✅ Number Properties Checker
    18. Write a program that:
1. Takes a number as input
2. Prints whether the number is:
   - Positive, negative or zero
   - Even or odd (only if non-zero)

    Requirements

    • Use nested if statements
    • Handle zero case separately

    Input

    -7

    Expected Output

    Negative
Odd

    📚 Python nested if

🟡 Intermediate Exercises

  1. ✅ Leap Year Check
    2. Write a program to check if a year is a leap year or not.
A leap year is divisible by 4, but not by 100 unless also divisible by 400.

    Requirements

    • Use nested if-elif-else structure
    • Handle all leap year conditions

    Input

    2020

    Expected Output

    Leap year
  2. ✅ Simple Calculator
    3. Write a simple calculator program that performs:
- Addition (+)
- Subtraction (-)
- Multiplication (*)
- Division (/)

    Requirements

    • Use if-elif-else structure
    • Handle division by zero

    Input

    5
2
/

    Expected Output

    2.5
  3. ✅ BMI Calculator
    4. Write a program to calculate BMI and categorize:
- Underweight (<18.5)
- Normal (18.5-24.9)
- Overweight (25-29.9)
- Obese (30+)

    Requirements

    • Use if-elif-else structure
    • Calculate BMI as weight(kg)/height(m)^2

    Input

    1.75
70

    Expected Output

    Normal
  4. ✅ Triangle Type Checker
    5. Write a program to check the type of a triangle:
- Equilateral (all sides equal)
- Isosceles (two sides equal)
- Scalene (all sides different)

    Requirements

    • Use if-elif-else structure
    • First validate if sides can form a triangle

    Input

    5
5
5

    Expected Output

    Equilateral
  5. ✅ Month Days
    6. Write a program to print the number of days in a given month (1-12).
Assume February has 28 days (ignore leap years).

    Requirements

    • Use if-elif-else structure
    • Handle invalid inputs

    Input

    4

    Expected Output

    30
  6. ✅ Login System Simulator
    7. Create a simple login system that:
1. Takes username and password as input
2. Checks:
   - If username is "admin" and password is "12345", print "Access granted"
   - If username is correct but password wrong, print "Wrong password"
   - If username doesn't exist, print "User not found"

    Requirements

    • Use if-elif-else with multiple conditions
    • Use string comparison

    Input

    admin
12345

    Expected Output

    Access granted

    📚 Python logical operators

  7. ✅ Leap Year Calculator
    8. Write a program that:
1. Takes a year as input
2. Determines if it's a leap year (print "Leap year" or "Not a leap year")
   - Rules:
     - Divisible by 4 → leap year
     - Except if divisible by 100 → not leap year
     - Unless also divisible by 400 → leap year

    Requirements

    • Use nested if statements
    • Handle all leap year conditions

    Input

    2000

    Expected Output

    Leap year

    📚 Python condition precedence

  8. ✅ Shopping Discount Calculator
    9. Create a program that:
1. Takes total purchase amount as input
2. Applies discounts:
   - 5% if amount ≥ 1000
   - 10% if amount ≥ 5000
   - 15% if amount ≥ 10000
3. Prints final amount after discount

    Requirements

    • Use if-elif-else structure
    • Calculate discount mathematically

    Input

    7500

    Expected Output

    6750.0

    📚 Python math operations

🔴 Advanced Exercises

  1. ✅ Triangle Type Checker
    2. Write a program that:
1. Takes three side lengths (a, b, c) as input
2. Determines if they form:
   - Equilateral triangle (all sides equal)
   - Isosceles triangle (exactly two sides equal)
   - Scalene triangle (no sides equal)
   - Not a triangle (sum of any two sides ≤ third side)

    Requirements

    • Use nested if statements
    • Check triangle validity first

    Input

    5
5
8

    Expected Output

    Isosceles triangle

    📚 Python comparison operators

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