Problems
| Problem Name | Code | Points | Users | AC Rate | Date Added |
|---|---|---|---|---|---|
| COI07 - Tamnica | coi07p3 | 25p | 20 | 22.77% | 2013-08-12 |
| COI07 - Umnozak | coi07p4 | 30p | 23 | 16.99% | 2013-08-12 |
| COI08 - Izbori | coi08p1 | 30 | 10 | 18.46% | 2009-04-26 |
| COI08 - Otoci | coi08p2 | 40p | 50 | 26.98% | 2009-04-27 |
| COI08 - Plahte | coi08p3 | 40p | 11 | 25.00% | 2009-04-26 |
| COI09 - Hrastovi | coi09p1 | 15p | 29 | 35.96% | 2013-07-02 |
| COI09 - Kolo | coi09p2 | 20p | 14 | 15.25% | 2013-07-07 |
| COI09 - Loza | coi09p3 | 30p | 8 | 4.91% | 2013-07-07 |
| DWITE Nov '02 - Sales! | dwitenov02p1 | 5 | 94 | 43.57% | 2009-03-25 |
| DWITE Nov '02 - The Five M's of Stats 101 | dwitenov02p2 | 5 | 83 | 30.14% | 2009-03-25 |
| DWITE Nov '02 - The Game of Life | dwitenov02p3 | 10 | 71 | 64.06% | 2009-03-25 |
| DWITE Nov '02 - Money Prize | dwitenov02p4 | 15 | 41 | 40.26% | 2009-03-25 |
| DWITE Nov '02 - Now I know my ABCs | dwitenov02p5 | 5 | 95 | 40.00% | 2009-03-25 |
| Diamonds | ecoo1p1 | 5 | 91 | 48.22% | 2009-03-04 |
| Pairwise Cipher | ecoo1p2 | 10 | 25 | 28.10% | 2009-03-04 |
| Serial Number Dates | ecoo1p3 | 10 | 18 | 12.50% | 2009-03-04 |
| Count Shapes | ecoo1p4 | 10 | 79 | 34.52% | 2009-03-04 |
| STACK Print Server | ecoo1p5 | 15 | 12 | 21.05% | 2009-03-04 |
| DWITE Oct '05 - Odometers | ecoo2p1 | 7 | 26 | 34.85% | 2009-03-06 |
| DWITE Oct '05 - The Game of Life | ecoo2p2 | 10p | 60 | 61.54% | 2009-03-06 |
| DWITE Oct '05 - Sum 'Em Up | ecoo2p3 | 5 | 151 | 30.86% | 2009-03-06 |
| DWITE Oct '05 - Minesweeper | ecoo2p4 | 10p | 39 | 33.54% | 2009-03-06 |
| DWITE Oct '05 - Five Digit Divisibility | ecoo2p5 | 5 | 38 | 35.43% | 2009-03-06 |
| DWITE Oct '07 - Vanilla Primes | dwiteoct07p1 | 5 | 236 | 29.23% | 2010-03-19 |
| DWITE Oct '07 - Cubes in a Pyramid | dwiteoct07p2 | 5 | 196 | 22.37% | 2010-03-19 |
| DWITE Oct '07 - Where's My QWERTY? | dwiteoct07p3 | 5 | 52 | 54.13% | 2010-03-19 |
| DWITE Oct '07 - Stacks of Blocks | dwiteoct07p4 | 10 | 104 | 38.07% | 2010-03-19 |
| DWITE Oct '07 - Velociraptor Maze | dwiteoct07p5 | 10p | 31 | 20.47% | 2010-03-20 |
| DWITE Feb '06 - Points on a Line | dwitefeb06p1 | 7 | 59 | 34.15% | 2008-11-13 |
| DWITE Feb '06 - Floppy Disk | dwitefeb06p2 | 10p | 74 | 60.26% | 2008-11-13 |
| DWITE Feb '06 - UPC Check Digit | dwitefeb06p3 | 5 | 78 | 34.85% | 2008-11-13 |
| DWITE Feb '06 - Connect-4 | dwitefeb06p4 | 7 | 25 | 59.65% | 2008-11-13 |
| DWITE Feb '06 - Prime Palindromes | dwitefeb06p5 | 10 | 124 | 23.24% | 2008-11-13 |
| IOI '94 - The Triangle | ioi9411 | 7 | 632 | 60.19% | 2013-12-25 |
| IOI '94 - The Castle | ioi9412 | 10 | 143 | 24.63% | 2013-12-25 |
| IOI '94 - The Primes | ioi9413 | 25p | 24 | 7.02% | 2013-12-26 |
| IOI '94 - The Clocks | ioi9421 | 10 | 106 | 26.79% | 2013-12-26 |
| IOI '94 - The Buses | ioi9422 | 20p | 17 | 5.42% | 2009-08-20 |
| IOI '94 - The Circle | ioi9423 | 17p | 11 | 34.38% | 2009-08-20 |
| IOI '95 Practice Task - Fence Factory | ioi9501 | 15p | 7 | 17.50% | 2014-04-11 |
| IOI '95 Practice Task - Word Chains | ioi9502 | 12 | 40 | 32.60% | 2014-04-13 |
| IOI '95 Practice Task - Bar Codes | ioi9503 | 20p | 17 | 37.74% | 2014-04-13 |
| IOI '95 - Packing Rectangles | ioi9511 | 15p | 20 | 47.92% | 2013-12-24 |
| IOI '95 - Shopping Offers | ioi9512 | 15p | 34 | 28.77% | 2013-12-25 |
| IOI '95 - Letter Game | ioi9521 | 15p | 25 | 21.28% | 2013-12-25 |
| IOI '95 - Street Race | ioi9522 | 15p | 33 | 25.19% | 2013-12-25 |
| IOI '96 - A Game | ioi9611 | 10 | 188 | 48.40% | 2013-12-22 |
| IOI '96 - Job Processing | ioi9612 | 20p | 42 | 36.91% | 2013-12-22 |
| IOI '96 - Network of Schools | ioi9613 | 20p | 64 | 23.18% | 2013-12-22 |
| IOI '96 - Sorting a Three-Valued Sequence | ioi9621 | 10 | 110 | 31.91% | 2013-12-22 |
