| 6856 | BZOJ2856：[ceoi2012]Printed Circuit Board | 0 | 0 | 0.000% |
| 7856 | BZOJ3856：Monster | 0 | 0 | 0.000% |
| 8856 | BZOJ4856：[Jsoi2016]病毒感染 | 0 | 0 | 0.000% |
| 304490 | CF856A. Set Theory | 0 | 0 | 0.000% |
| 304491 | CF856B. Similar Words | 0 | 0 | 0.000% |
| 304492 | CF856C. Eleventh Birthday | 0 | 0 | 0.000% |
| 304493 | CF856D. Masha and Cactus | 0 | 0 | 0.000% |
| 304494 | CF856E. Satellites | 0 | 0 | 0.000% |
| 304495 | CF856F. To Play or not to Play | 0 | 0 | 0.000% |
| 310180 | CF1794A. Prefix and Suffix Array | 0 | 0 | 0.000% |
| 310181 | CF1794B. Not Dividing | 0 | 0 | 0.000% |
| 310182 | CF1794C. Scoring Subsequences | 0 | 0 | 0.000% |
| 310183 | CF1794D. Counting Factorizations | 0 | 0 | 0.000% |
| 310184 | CF1794E. Labeling the Tree with Distances | 0 | 0 | 0.000% |
| 310588 | CF1856A. Tales of a Sort | 0 | 0 | 0.000% |
| 310589 | CF1856B. Good Arrays | 0 | 0 | 0.000% |
| 310590 | CF1856C. To Become Max | 0 | 0 | 0.000% |
| 310591 | CF1856D. More Wrong | 0 | 0 | 0.000% |
| 310592 | CF1856E1. PermuTree (easy version) | 0 | 0 | 0.000% |
| 310593 | CF1856E2. PermuTree (hard version) | 0 | 0 | 0.000% |
| 405237 | GYM101856 A Assessments | 0 | 0 | 0.000% |
| 405238 | GYM101856 B Breaking the Curse | 0 | 0 | 0.000% |
| 405239 | GYM101856 C Cheering Parabolas | 0 | 0 | 0.000% |
| 405240 | GYM101856 D Dream Team | 0 | 0 | 0.000% |
| 405241 | GYM101856 E Evaluations | 0 | 0 | 0.000% |
| 405242 | GYM101856 F Forgot the Flag! | 0 | 0 | 0.000% |
| 405243 | GYM101856 G Glorious Stadium | 0 | 0 | 0.000% |
| 405244 | GYM101856 H Half Nice Years | 0 | 0 | 0.000% |
| 405245 | GYM101856 I Important matches | 0 | 0 | 0.000% |
| 405246 | GYM101856 J Jacked Tickets | 0 | 0 | 0.000% |
| 405247 | GYM101856 K Katryoshka | 0 | 0 | 0.000% |
| 405248 | GYM101856 L Lazy ERCD | 0 | 0 | 0.000% |