| Problem | Submit | % AC | Difficulty |
|---|---|---|---|
| P1007 A. Password Checker | 83 | 59 | 2 |
| P1021 A. Pivot points | 14 | 79 | 3 |
| P1030 K. A boring train journey | 24 | 29 | 5 |
| P1055 B. Array Permutation | 99 | 59 | 1 |
| P1080 A. String Algorithm | 143 | 76 | 1 |
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