The IMO Compendium

This book contains all available problems proposed to the International Mathematical Olympiads (IMO), with solutions to all shortlisted problems. The second edition is the most current one and it covers the years from 1959 to 2009.

Problems from olympiads

Problems from previous national and international math olympiads.

IMOmath training

A collection of training materials and math texts.

Brainteasers: books and puzzles

150 Most Frequently Asked Questions on Quant Interviews

by Dan Stefanica, Rados Radoicic, and Tai-Ho Wang, second edition, FE Press 2019, 281 pages

Probability and Stochastic Calculus Quant Interview Questions

by Ivan Matic, Rados Radoicic, and Dan Stefanica, FE Press 2021, 334 pages

Challenging Brainteasers for Interviews

by Rados Radoicic, Ivan Matic, and Dan Stefanica, FE Press 2023, 345 pages

C++ programming

Lecture notes with code autograder for C++.

Competitions in Serbia

A website with math competitions in Serbia is located at