5 Blogs by

An Interesting Subsequence

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

Download the test cases of the April-09 problem set

You can download all the test cases that were used in the problems in the April-09 contest. All problems have input and output cases...
dhruvbird
1 min read

Tutorial: Johnny and the Beanstalk (A2 Review)

Each month we plan on taking one or two problems and describing various approaches to solve them.  Since our first contest has just ended,...
dhruvbird
1 min read

CodeChef Tutorial: Your First Non-Trivial Problem

Hello people…. Today, we are going to make our first non-trivial program submission, and I am going to guide you through reading the problem...
dhruvbird
3 min read

CodeChef Tutorial: Input and Output (I/O)

This post will try and introduce newcomers to the first and most basic thing they need to learn before submitting programs — How to...
dhruvbird
2 min read