Sunday, December 28, 2008

UVa Online Judge

The UVa Online Judge ( is a website that archives thousands of problems used for computer programming competitions. It also provides a facility for validating code submissions to the problems published. Hence, it offers an excellent venue for testing algorithms.

Each problem in the archive is tagged with an ID number for easy identification. Refer to Figure 1.

Figure 1. Problems listing in the archive.

In Figure 1, the problem “Moscow time” has an ID number of 505.

Codes can be submitted for online validation can be written in C, Java, C++ or Pascal. Figure 2 shows the form for online submission.

Figure 2. Form for online code submission.

To search for a problem, one can opt to use the Google search bar as shown in Figure 3.

Figure 3. Google bar for searching problems.
Simply type in the problem ID in the Google bar. Be sure to tick the button.

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