- (July, 6) - The keyboard layout is posted.
- (June, 22) - Eclipse CDT will also be available as an IDE.
The contest environment for IOI 2011 will follow mostly the last
For each task, contestants will implement subroutines as described
in the task to meet the requirement. Their implementation will be
graded with the grader program provided by the IOI. The initial
implementation that includes a skeleton of all required subroutines
will be provided.
As in 2010,
tool will be used to facilitate program development and testing of
More specifically, the contestant machine will run
on Ubuntu 10.10 with the
following list of software:
- Compilers: gcc >= 4.4, g++ >= 4.4, Free Pascal >= 2.4 with documentation;
- Editors: mcedit, joe, vim, kate, kwrite, kdevelop, emacs, xemacs, xwpe, lazarus, gedit, nano, scite, codeblocks, geany, eclipse-cdt;
- Debuggers: gdb, ddd
- Programming tool: RunC
We will use a tool
from IOI 2010 as a main tool for program development. It integrates
with gedit, and can also be called via command lines. Again, as in
IOI 2010, the use of RunC is not mandatory.
Practicing with the environment
A virtualbox appliance for the contest environment
is available (download size 1.8
GB). It may be faster to follow instructions below to install the
software yourself. The sample tasks are available here.
There will be
an on-line practice session before the IOI; the date and time will
be announced to the ioi mailing list.
It is also possible to install a similar environment on your
machine or on a virtualization system such
or VMware. If you want
install all compilers, editors, and documentations on Ubuntu,
follow the instructions below.
First, install Ubuntu
10.10 on your machine or on your virtual machine. After you log
in into the system, open the terminal
(menu Accessories ->
Terminal) and type
to install compilers and editors (except Eclipse). It will ask for your password,
and will take some time. After it is done, a few icons will appear
on your desktop. (Note
: the script has been updated to
so that Kate's terminal plugin works.
Thanks Егор Суворов for reporting.)
If you want to use Eclipse, please type:
sudo apt-get install eclipse-cdt
If you do not want all compilers and
editors, here is a list of apt-get
commands so that you can choose to install what you need.
# installing compilers and debuggers
sudo apt-get install gcc g++ fpc fp-docs
sudo apt-get install ddd
# installing editors, pick ones you like
sudo apt-get install codeblocks emacs geany vim lazarus scite vim-gnome
sudo apt-get install joe kate konsole kwrite kdevelop cmake xwpe nano xemacs21 mc
To install the RunC environment, follow the last year instructions.
If you want to install the RunC with gedit plugin, type:
wget -N http://plg1.uwaterloo.ca/~gvcormac/RunC-IOI/RunC-latest.sh
sudo ln -s ~/.RunC/runc /usr/bin
If you want a command-line-only version, type:
wget -N http://plg1.uwaterloo.ca/~gvcormac/RunC-IOI/RunCcmd-latest.sh
sudo ln -s ~/.RunC/runc /usr/bin
overview of the environment
that includes instructions on how to
use RunC, and
tutorial on RunC
from IOI 2010.
The contest machines will run on an Intel Core 2 Duo E7500 2.93 GHz processors or better with 4GB of memory.
The following is the keyboard layout. The machines only support
Contacting the Host Scientific Committee
If you have comments or problems with the environment, please send e-mail to firstname.lastname@example.org