Five for week 12

Dec 20, 2010, 10:00:00 AM — Dec 26, 2010, 12:00:04 AM

Duration 5 days

By last solution

Participant's result will be calculated as sum of all passed tests. If participant submitted multiple solutions, the last one will be taken.

Open competition

Everyone registered on the website will automatically participate in the competition

Number theory. Fractions