| Problem ID | Title | Source/Category | AC | Submit | |
| 3928 Problem A | 重复字符最长串 | 字符串 | 0 | 0 | |
| 3953 Problem B | CCC08J2 Do the Shuffle | CCC 字符串 数组 | 0 | 0 | |
| 3954 Problem C | 【字符串】最长回文子串 | 字符串 | 0 | 0 | |
| 1024 Problem D | #547. 「LibreOJ β Round #7」匹配字符串 | 0 | 0 | ||
| 3929 Problem E | CCC17J5 Nailed It! | 循环 CCC | 0 | 0 |