- Reverse Array in Groups
- Remove duplicates from Array
- K-largest element in Array
- Sorting an array in the wave form
- Subarray with given sum
- 2D Areas
- Ackermann Function using Recursions
- Armstrong number
- Armstrong number using Recursive approach
- Automorphic Number
- Binary Exponentiation (Iterative and Recursive methods)
- Catalan number (Recursion)
- Check if a Number is a Palindrome
- Decimal to Binary conversion
- Decimal to Hexadecimal Conversion
- Double factorial
- Euler's Totient Function
- Euclidean Algorithm to find GCD
- Strong Number
- Factorial
- Sum of Digits
- Neon number
- Magic Number
- Happy Number
- Binomial Coefficient (under modulo)
- Perfect Number
- Harshad Number
- Tower of Hanoi