Here is a nice tutorial for the problem Quadratic Equations, courtesy Neelesh Bodas Introduction: This tutorial discusses one of the “hard problems” of the...

Hello all ! The problem that we will be taking up is http://www.codechef.com/problems/FCTRL2/ 🙂 This problem basically asks you to calculate the factorial of...

In the May Challenge we posed a question about computing the Longest Common Increasing Subsequence (LCIS) of 2 given sequences. What does LCIS mean?...