Learn about expression parsing. Evaluation of postfix and prefix

Learn how to detect a loop in a linked list. Code in C, Java and Python with explanation.

Learn how to parse different expressions like prefix, postfix and infix expressions.

Remove duplicate elements from a sorted array using two methods with code in C, Python and Java.

Learn to get the longest common subsequence in a string using memoization and brute force.

Learn the algorithm to solve tower of Hanoi problem. Codes in C, Java and Python with explanation.