| Problem ID | Title | Solved | Submit | Pass Rate |
|---|---|---|---|---|
| 1166 | 破译邮件 | 58 | 169 | 34.320% |
| 1175 | 字符串的反码 | 16 | 73 | 21.918% |
| 1176 | 字符串统计 | 110 | 211 | 52.133% |
| 1180 | 字符串的查找删除 | 11 | 56 | 19.643% |
| 1397 | 字符串轮转 | 73 | 150 | 48.667% |
| 1438 | 字符串距离 | 21 | 23 | 91.304% |
| 1504 | 字符串变换 | 11 | 40 | 27.500% |
| 1531 | 字符串编码 | 76 | 137 | 55.474% |
| 1532 | 字符串解码* | 87 | 190 | 45.789% |
| 1542 | 字符串中的第一个唯一字符（加强版） | 22 | 206 | 10.680% |
| 1640 | 阅读程序_字符串1 | 13 | 61 | 21.311% |
| 1666 | 算式的判别 | 16 | 59 | 27.119% |
| 1714 | 编排字符串 | 21 | 58 | 36.207% |
| 1786 | 扰乱字符串 - nodata | 2 | 13 | 15.385% |
| 1879 | 字符串的前缀 | 8 | 75 | 10.667% |