Tutorials

ACM ICPC IIT KGP online round goof-up. We are…

Dear CodeCheffers, As the time nears the declaration of the selected list of teams for the onsite, we think we must own up the...
anup
3 min read

What makes a good CodeChef Editorial?

This is a truly interesting question, and I thought it would be a great way to have this opened to the CodeChef community so...
pragrame
8 min read

Video Tutorial for Puzzle Game

Aloo Makhnis, Aniruddha from the CodeChef team has put together a video tutorial for Puzzle Game . We hope to start including more content...
admin
1 min read

The Basic Implementation of a Search Engine

On the 3rd of Sept 2009, I delivered a session at MPSTME, NMIMS (Mumbai), on ‘The Basic Implementation of a Search Engine’. The crowd...
admin
1 min read

Tutorial for problem Quadratic Equations

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

Tutorial for problem Product of Divisors

The problem Product of Divisors asks us to find the last 4 digits of the product of all the divisors of a number. So,...
admin
3 min read

Tutorial for problem “Paying Up”

Hello, The problem “Paying Up” was one of the easy ones in the March 2009 contest on Codechef. It is considered an easy problem,...
admin
3 min read

Tutorial For Small Factorials

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...
admin
3 min read

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

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