- 2012-04-18POJ 2162 - Document Indexing
- 2012-04-18POJ 1117 - Pairs of Integers
- 2012-04-18POJ 3429 - Geometry with a ruler
- 2012-04-18POJ 3928 - Ping pong
- 2012-04-13AOJ 0574 - Nails
- 2012-04-13AOJ 0571 - JJOOII
- 2012-04-13AOJ 0572 - Card Game is Fun
- 2012-04-13AOJ 0575 - Festivals in JOI Kingdom
- 2012-04-13AOJ 0573 - Night Market
- 2012-04-11POJ 1487 - Single-Player Games
- 2012-04-11POJ 1122 - FDNY to the Rescue!
- 2012-04-11POJ 1478 - Island of Logic
- 2012-04-11POJ 1810 - Covering
- 2012-02-09POJ 3106 - Flip and Turn
- 2012-02-08POJ 2978 - Colored stones
- 2012-02-08POJ 1691 - Painting A Board
- 2012-02-07POJ 3197 - Continuous Fractions
- 2012-02-07POJ 2951 - Cake Cutting
- 2012-02-07POJ 1170 - Shopping Offers
- 2012-02-07POJ 1915 - Knight Moves