| Iden | Name | Platform | Difficulty | Limits |
|---|---|---|---|---|
| nikkei2019_2_qual_a | Sum of Two Integers | AtCoder | — | 2000ms / 256MB |
| nikkei2019_2_qual_b | Counting of Trees | AtCoder | — | 2000ms / 256MB |
| nikkei2019_2_qual_c | Swaps | AtCoder | — | 2000ms / 256MB |
| nikkei2019_2_qual_d | Shortest Path on a Line | AtCoder | — | 2000ms / 256MB |
| nikkei2019_2_qual_e | Non-triangular Triplets | AtCoder | — | 2000ms / 256MB |
| nikkei2019_2_qual_f | Mirror Frame | AtCoder | — | 2000ms / 256MB |
| nikkei2019_qual_a | Subscribers | AtCoder | — | 2000ms / 256MB |
| nikkei2019_qual_b | Touitsu | AtCoder | — | 2000ms / 256MB |
| nikkei2019_qual_c | Different Strokes | AtCoder | — | 2000ms / 256MB |
| nikkei2019_qual_d | Restore the Tree | AtCoder | — | 2000ms / 256MB |
| nikkei2019_qual_e | Weights on Vertices and Edges | AtCoder | — | 2000ms / 256MB |
| nikkei2019_qual_f | Jewels | AtCoder | — | 2000ms / 256MB |
| nomura2020_a | Study Scheduling | AtCoder | — | 2000ms / 256MB |
| nomura2020_b | Postdocs | AtCoder | — | 2000ms / 256MB |
| nomura2020_c | Folia | AtCoder | — | 2000ms / 256MB |
| nomura2020_d | Urban Planning | AtCoder | — | 2000ms / 256MB |
| nomura2020_e | Binary Programming | AtCoder | — | 2000ms / 256MB |
| nomura2020_f | Sorting Game | AtCoder | — | 3000ms / 256MB |
| panasonic2020_a | Kth Term | AtCoder | — | 2000ms / 256MB |
| panasonic2020_b | Bishop | AtCoder | — | 2000ms / 256MB |
| panasonic2020_c | Sqrt Inequality | AtCoder | — | 2000ms / 256MB |
| panasonic2020_d | String Equivalence | AtCoder | — | 2000ms / 256MB |
| panasonic2020_e | Three Substrings | AtCoder | — | 2000ms / 256MB |
| panasonic2020_f | Fractal Shortest Path | AtCoder | — | 2000ms / 256MB |
| rcl_contest_2021_long_a | Farm King X | AtCoder | — | 2000ms / 256MB |
| relay2_a | Kaiden | AtCoder | — | 2000ms / 256MB |
| relay2_b | Evergrowing Tree | AtCoder | — | 2000ms / 256MB |
| relay2_c | Garden | AtCoder | — | 2000ms / 256MB |
| relay2_d | Shock | AtCoder | — | 2000ms / 256MB |
| relay2_e | White and Blue | AtCoder | — | 2000ms / 256MB |
| relay2_f | Capture | AtCoder | — | 2000ms / 256MB |
| relay2_g | Coinage | AtCoder | — | 2000ms / 256MB |
| relay2_h | Akashic Records | AtCoder | — | 2000ms / 256MB |
| relay2_i | Nice to Meet You | AtCoder | — | 2000ms / 256MB |
| relay2_j | Indifferent | AtCoder | — | 2000ms / 256MB |
| relay_a | Equivalent Resistance | AtCoder | — | 2000ms / 256MB |
| relay_b | Mirror String | AtCoder | — | 2000ms / 256MB |
| relay_c | Kode Festival | AtCoder | — | 2000ms / 256MB |
| relay_d | Magic Square 2 | AtCoder | — | 2000ms / 256MB |
| relay_e | Segment on Grid Paper | AtCoder | — | 2000ms / 256MB |
| relay_f | Trichotomy | AtCoder | — | 2000ms / 256MB |
| relay_g | Magician | AtCoder | — | 2000ms / 256MB |
| relay_h | Early Bird | AtCoder | — | 2000ms / 256MB |
| relay_i | 3y3s Challenge | AtCoder | — | 2000ms / 256MB |
| relay_j | Connected Checkerboard | AtCoder | — | 2000ms / 256MB |
| relay_k | Problem on Tree | AtCoder | — | 2000ms / 256MB |
| s8pc_3_a | Calendar | AtCoder | — | 1000ms / 256MB |
| s8pc_3_b | Falling Stone Game | AtCoder | — | 1000ms / 256MB |
| s8pc_3_c | Solving XOR-Puzzles | AtCoder | — | 1000ms / 256MB |
| s8pc_3_d | Souvenirs | AtCoder | — | 2000ms / 256MB |