KContest - Week 01 (https://pastebin.com/sRSyprjT)
Problem J
John's Book Stack — Problem Statistics
Back to problem description| Submissions | 468 |
| Accepted submissions | 160 |
| Submission ratio | 34.19% |
| Authors | 175 |
| Full solves [?] | 121 |
| Full solve Ratio | 69.14% |