| cave | Batch | IOI 2013, Binary Search, Blackbox | 78 |
| wires | Batch | Sorting, RI-HCI NOI Selection Test 2019, Blackbox | 54 |
| ping | Batch | Blackbox | 50 |
| lampposts | Batch | Binary Search, Function Call, Blackbox | 43 |
| squarerect | Batch | NOI 2019 Prelims, Blackbox, Function Call | 23 |
| xylophone | Batch | JOI Open 2017/2018, Blackbox | 23 |
| messy | Batch | IOI 2016, Blackbox | 22 |
| library | Batch | Blackbox, JOI 2017/2018 | 17 |
| citymapping | Batch | Graph Theory, Blackbox, NOI 2018 | 13 |
| dateornot | Batch | Blackbox, Binary Search | 10 |
| prize | Batch | IOI 2017, Blackbox | 8 |
| artswap | Batch | Mock NOI 2020, Blackbox | 7 |
| cup | Batch | IOI 2017 Practice, Blackbox | 4 |
| shuffle | Batch | NOI 2019, Ad Hoc, Blackbox | 4 |
| simurgh | Batch | IOI 2017, Blackbox, Graph Theory | 3 |
| koala_apio | Batch | APIO 2017, Blackbox | 2 |
| trespasser | Batch | 2019 SGIOI Problem Setter Contest, Blackbox | 2 |
| blackboxgroup | Batch | Math | 1 |