Jugnu Life :-): Websites for improving programming and algorithms skills

Bunch of resources for improving programming skills by practice and participating in online competitions

Online code practice which shows the right solution straight away. The best part which i like the most is that you can type your code into the text pad on website and see its output

http://livearchive.onlinejudge.org/

Here you will find hundreds of problems used in the ACM-ICPC Regional's and World Finals. You can submit your sources in a variety of languages, trying to solve any of the problems available in database.

New location is

http://uva.onlinejudge.org/index.php

http://www.spoj.pl/

SPOJ – Sphere Online Judge – is a problem set archive, online judge and contest hosting service accepting solutions in many languages.

http://www.topcoder.com/

This website has lots of programming contests

http://projecteuler.net/

Project Euler is a series of challenging mathematical/computer programming problems that will require more than just mathematical insights to solve. Although mathematics will help you arrive at elegant and efficient methods, the use of a computer and programming skills will be required to solve most problems.

http://www.codechef.com/

Participate in programming competitions , practice online questions , participate in online discussions

http://www.usaco.org/

the USA Computing Olympiad, training pages and online contests.

The USACO 2011 December contest runs from December 9 through December 12. Click Here for further details.

2011-2012 Schedule

Nov 11-14: November Contest
Dec 9-12: December Contest
Jan 6-9: January Contest
Feb 3-6: February Contest
Mar 2-5: March Contest
April: US Open
June: Training Camp
September: IOI 2012 in Milan, Italy

http://www.bitwise.iitkgp.ernet.in/home

IITKGP Annual Algorithms and Programming contest

Bitwise 2011 was a great success with participation from 3200 teams from over 80 countries.

Any one around the world (except students of IITKGP CSE department) can participate in the contest

http://www.facebook.com/careers/puzzles.php?puzzle_id=7

Puzzles for solving posted by Facebook

http://mathalon.in/

http://codercharts.com/

http://felicity.iiit.ac.in/

Other Resources

A website having calendar which has dates for coding contests around the world

http://home.iitk.ac.in/~pankajj/programming_calender.html