| Problem ID | Title | Source/Category | AC | Submit | |
| 1002 Problem A | ISBN号码 | NOIP全国联赛普及组-2008年NOIP全国联赛普及组 | 4 | 10 | |
| 3921 Problem B | 【字符串】回文串 | 字符串 | 5 | 9 | |
| 3923 Problem C | 统计单词 | 名校复试机考真题-华中科技大学 数组 字符串 | 4 | 9 | |
| 3960 Problem D | Consecutive characters | English 字符串 | 2 | 6 | |
| 3954 Problem E | 【字符串】最长回文子串 | 字符串 | 2 | 31 |