Algorithms Weekly by Petr Mitrichev

Two players are playing a game and take alternating turns. Initially, there are 9 cards with numbers from 1 to 9 on the table. On each turn,...

This will probably only be interesting for TopCoder players, and they've probably already seen this on the forum, but anyway. Feel free ...

Hiya! Today, I've got a small tip that has proved useful several times for me in ACM-style competitions. Suppose you have a program that...

The last TopCoder SRM (the problem statement is at http://www.topcoder.com/stat?c=problem_statement&pm=9975 , but that requires a TopCod...

I can't resist to complete my previous questions with answers. First, about the integral of f' squared being not less than the integ...

I've participated in a contest this weekend in St. Petersburg, and I'd like to explain (at least) one problem from that contest - I ...

A short math problem instead of a long philosophical text this time! Here's a problem that was given by one of our math lecturers in the...