You can Practice C – Language by solving these problems.

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Decision-Making and Control Statements

1. Odd or Even with Zero Check
   Write a program to check if a number is odd, even, or zero using if-else.
2. Traffic Light Simulator
   Simulate traffic lights using a switch-case. Take user input (R for red, G for green, Y for yellow) and display appropriate actions.
3. Eligibility for Voting
   Input age and check if a person is eligible to vote. Extend the program to determine if the person is eligible for senior citizen benefits (age 60+).
4. Simple Calculator
   Create a calculator program using a switch-case that performs addition, subtraction, multiplication, and division based on user choice.

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Loops and Iterations

5. Sum of Multiples
   Find the sum of all multiples of 3 or 5 below a number entered by the user using a for loop.
6. Number Palindrome Checker
   Input a number and check if it is a palindrome (reads the same forward and backward) using a while loop.
7. Pattern Printing
   Print the following pattern for n rows: 1 12 123 1234
8. Factorial Without Recursion
   Calculate the factorial of a number using a while loop instead of recursion.

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Functions and Recursion

9. Power Function
   Write a function to compute the power of a number (base^exponent) using a loop.
10. Palindrome String
    Input a string (without using arrays, take character-by-character input) and check if it is a palindrome using a recursive function.
11. Number of Digits
    Write a recursive function to count the number of digits in an integer.
12. HCF (Highest Common Factor)
    Implement a function to calculate the HCF of two integers using loops.

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Logical and Relational Operators

13. Magic Number
    A “magic number” is a number where the sum of its digits, repeated until a single digit, equals 1. Write a program to check if a number is magic.
14. Print ASCII Values
    Write a program to print all ASCII values for characters from ‘A’ to ‘Z’ using a for loop.
15. Nested Loops – Square Pattern
    Print a solid square of * based on the number of rows and columns entered by the user.

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Miscellaneous

16. Temperature Conversion
    Create a program to convert a given temperature from Celsius to Fahrenheit and vice versa.
17. Reverse Digits Without Loop
    Use recursion to reverse the digits of a number.
18. Prime Numbers Between Two Integers
    Input two integers and find all prime numbers in that range.
19. Collatz Conjecture
    Implement the Collatz Conjecture:
    Start with any positive integer n. If n is even, divide it by 2. If odd, multiply it by 3 and add 1. Repeat until n becomes 1. Print all the steps.
20. Multiples Finder
    Input two numbers and print all common multiples between 1 and 100.

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Let me know if this list fits your needs better! 😊