| ID | Problem Show tags Hide tags | AC / Tried | Difficulty | |
|---|---|---|---|---|
| 707 | P707 Round Down the Price ( 價格約整數 ) | 0 / 0 | (None) | |
| 775 | P775 Next Round ( 下一輪 ) | 0 / 0 | (None) | |
| 777 | P777 Bit++ ( 位元++ ) | 0 / 0 | (None) | |
| 779 | P779 Petya and Strings ( 彼佳與琴弦 ) | 0 / 0 | (None) | |
| 780 | P780 Helpful Maths ( 數學得力工具 ) | 0 / 0 | (None) | |
| 783 | P783 Football ( 足球 ) | 1 / 1 | 10 | |
| 787 | P787 Kefa and First Steps ( Kefa 的第一步 ) | 0 / 0 | (None) |
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