display a difficulty of AtCoder Problems.
| 日付 | インストール | アップデート確認 |
|---|---|---|
| 2025-08-31 | 1 | 564 |
| 2025-09-01 | 0 | 617 |
| 2025-09-02 | 2 | 582 |
| 2025-09-03 | 1 | 608 |
| 2025-09-04 | 3 | 585 |
| 2025-09-05 | 0 | 628 |
| 2025-09-06 | 1 | 604 |
| 2025-09-07 | 7 | 588 |
| 2025-09-08 | 2 | 607 |
| 2025-09-09 | 3 | 602 |
| 2025-09-10 | 0 | 606 |
| 2025-09-11 | 0 | 580 |
| 2025-09-12 | 1 | 598 |
| 2025-09-13 | 0 | 595 |
| 2025-09-14 | 2 | 583 |
| 2025-09-15 | 3 | 582 |
| 2025-09-16 | 1 | 588 |
| 2025-09-17 | 2 | 601 |
| 2025-09-18 | 0 | 632 |
| 2025-09-19 | 1 | 630 |
| 2025-09-20 | 3 | 596 |
| 2025-09-21 | 2 | 562 |
| 2025-09-22 | 1 | 583 |
| 2025-09-23 | 1 | 593 |
| 2025-09-24 | 0 | 643 |
| 2025-09-25 | 1 | 639 |
| 2025-09-26 | 0 | 624 |
| 2025-09-27 | 2 | 593 |
| 2025-09-28 | 0 | 561 |
| 2025-09-29 | 4 | 465 |
