Practice and Learn
On this page you can see results and code from past rounds of Google Code
Jam, and you can try the problems for yourself. If you're new to Code Jam,
try following the Quick-Start Guide.
Where should I start?
If you're new to programming contests, we highly recommend starting with the
least difficult problems and moving up from there as you get more
confident. Beware: the round that has the easiest problem A may have a
very difficult problem B!
As you get used to the platform, you can check how many people solved each
problem in the "Submissions" box to the left of the dashboard, and use that
as a rough gauge of difficulty.
Here are some choice problems for new competitors:
Remember, if you get stuck you can look at someone else's solution (click a
"solutions" link below) or join our
mailing
list and ask for help. If you're done with these problems and looking
for more, look for early rounds (Qualification, Round 1, maybe Round 2) and
look at the first problems (A, B). Then see how many of the competitors
solved them.
Finding Solutions
You can click a "solutions" link below, but those aren't really indexed in a
helpful way. You can find solutions grouped by language, author and country
at http://go-hero.net/jam, a site
written by contestant foxlit.
Past Contests
Google Code Jam Japan 2011
Code Jam Africa and Arabia 2011
Google Code Jam Africa 2010
Other Resources
TopCoder
TopCoder runs regular
algorithm competitions called SRMs (Single Round Matches) that anyone can
participate in. They also run High School matches and the annual
TopCoder Open. You can practice with their old rounds; start with Division
2 if you're new. They also have a variety of other, longer-term programming
competitions. Warning: you'll only be able to use Java, C++, C# or Visual
Basic.
ACM ICPC
If you're a university or college student, your school may have a
team that competes in the ACM ICPC. Some teams have regular practices,
tryouts and local contests; if yours doesn't, maybe you can start something.
You can try to solve problems that have been used in old ACM contests (local
and global) on your own at their
Online Judge.
Warning: you'll only be able to use C, C++, Java and PASCAL.
SPOJ
The Sphere Online Judge
also hosts a lot of problems.
