| Iden | Name | Platform | Difficulty | Limits |
|---|---|---|---|---|
| wtf19_d | Distinct Boxes | AtCoder | — | 2000ms / 256MB |
| wtf19_e | e | AtCoder | — | 4000ms / 256MB |
| wtf22_day1_a | Save the Monsters | AtCoder | — | 2000ms / 256MB |
| wtf22_day1_b | Non-Overlapping Swaps | AtCoder | — | 2000ms / 256MB |
| wtf22_day1_c | Shrink the Tree | AtCoder | — | 5000ms / 256MB |
| wtf22_day1_d | Welcome to Tokyo! | AtCoder | — | 5000ms / 256MB |
| wtf22_day1_e | Sort A[i]-i | AtCoder | — | 5000ms / 256MB |
| wtf22_day2_a | Hat Puzzle | AtCoder | — | 2000ms / 256MB |
| wtf22_day2_b | The Greatest Two | AtCoder | — | 5000ms / 256MB |
| wtf22_day2_c | Jewel Pairs | AtCoder | — | 2000ms / 256MB |
| wtf22_day2_d | Cat Jumps | AtCoder | — | 2000ms / 256MB |
| wtf22_day2_e | Adjacent Xor Game | AtCoder | — | 5000ms / 256MB |
| yahoo_procon2019_qual_a | Anti-Adjacency | AtCoder | — | 2000ms / 256MB |
| yahoo_procon2019_qual_b | Path | AtCoder | — | 2000ms / 256MB |
| yahoo_procon2019_qual_c | When I hit my pocket... | AtCoder | — | 2000ms / 256MB |
| yahoo_procon2019_qual_d | Ears | AtCoder | — | 2000ms / 256MB |
| yahoo_procon2019_qual_e | Odd Subrectangles | AtCoder | — | 2000ms / 256MB |
| yahoo_procon2019_qual_f | Pass | AtCoder | — | 2000ms / 256MB |
| zone2021_a | UFO Invasion | AtCoder | — | 2000ms / 256MB |
| zone2021_b | Sign of Friendship | AtCoder | — | 2000ms / 256MB |
| zone2021_c | MAD TEAM | AtCoder | — | 2000ms / 256MB |
| zone2021_d | Message from Aliens | AtCoder | — | 2000ms / 256MB |
| zone2021_e | Sneaking | AtCoder | — | 2000ms / 256MB |
| zone2021_f | Encounter and Farewell | AtCoder | — | 2000ms / 256MB |