| 题目编号 | 标题 | 来源/分类 | 正确 | 提交 | |
| 1031 Problem A | [入门]字符串反序 | 字符串 | 3 | 5 | |
| 1302 Problem B | 输出字符串中的第1个和第3个字符 | 入门题-字符串 | 3 | 5 | |
| 1303 Problem C | 字符串大小写互转 | 字符串 | 3 | 5 | |
| 2320 Problem D | 含有多少个数字1 | 字符串 | 3 | 8 | |
| 1012 Problem E | [入门]各类字符统计 | 字符串 | 3 | 6 | |
| 1409 Problem F | 回文字符串 | 回文 | 3 | 6 | |
| 2116 Problem G | 配对碱基链 | 字符串 | 3 | 4 | |
| 2574 Problem H | 基因相关性 | 编程基础之字符串 | 3 | 4 | |
| 2576 Problem I | 输出亲朋字符串 | 输出亲朋字符串 | 3 | 5 | |
| 2577 Problem J | 合法 C 标识符 | 编程基础之字符串 | 2 | 3 | |
| 2579 Problem K | 密码翻译 | 编程基础之字符串 | 3 | 8 | |
| 2580 Problem L | 简单密码 | 编程基础之字符串 | 3 | 6 | |
| 2585 Problem M | 验证子串 | 编程基础之字符串 | 4 | 9 | |
| 2587 Problem N | 删除单词后缀 | 编程基础之字符串 | 3 | 12 | |
| 2128 Problem O | 子串查找 | 字符串 | 8 | ||
| 2120 Problem P | 字符环 | 字符串 | 4 | 5 | |
| 2597 Problem Q | 字符串的展开 | 编程基础之字符串 | |||
| 2106 Problem R | ISBN | 字符串 | |||
| 2119 Problem S | 字符串p型编码 | 字符串 | |||
| 2118 Problem T | 字符串最大跨距 | 字符串 | |||
| 1318 Problem U | [NOIP2009提高]潜伏者 | NOIP提高 |