| 题目编号 | 标题 | 来源/分类 | 正确 | 提交 | |
| 1021 Problem A | 输出n个字符 | 循环 | 3 | 4 | |
| 1049 Problem B | 统计字符 | 3 | 3 | ||
| 1058 Problem C | 验证子串 | 字符串 | 2 | 6 | |
| 1059 Problem D | Supper字符串 | 1 | 1 | ||
| 1060 Problem E | EASY字符串 | 规律计算 | |||
| 1095 Problem F | 字符串的来回操作 | 3 | |||
| 1157 Problem G | 统计数字字符个数 | 字符串 | 2 | 2 | |
| 1158 Problem H | 字符串哈希 | 哈希表 | |||
| 1166 Problem I | Trie字符串统计 | Trie | |||
| 1167 Problem J | KMP字符串 | KMP | |||
| 1174 Problem K | 周期串 | 字符串 | |||
| 1201 Problem L | 字符矩阵 | 3 | 3 | ||
| 1205 Problem M | 字符矩阵1 | 3 | 4 | ||
| 1215 Problem N | 简单字符串 | ||||
| 1305 Problem O | 字符菱形1 | 3 | 3 | ||
| 1306 Problem P | 字符菱形2 | 夏令营基础班1 | 2 | 2 | |
| 1381 Problem Q | 统计数字字符个数 | 3 | 4 | ||
| 1382 Problem R | 合并字符串 | 字符串操作 | 3 | 4 | |
| 1383 Problem S | 删除重复字符 | 字符串 | 2 | 3 | |
| 1384 Problem T | 删除指定字符（1） | 字符串 | |||
| 1386 Problem U | 将字符串中的小写字母转换成大写字母 | 字符串 | 1 | 3 | |
| 1389 Problem V | 字符转换 | 夏令营基础班5 | 2 | 3 | |
| 1390 Problem W | 判断字符串是否为回文 | 字符串 | 2 | 2 | |
| 1391 Problem X | 字符串统计 | 字符串 | |||
| 1492 Problem Y | 统计大写字母个数 | 字符串 | 2 | 3 | |
| 1583 Problem Z | 求逆序字符串 | 字符串 | 1 | 1 | |
| 1584 Problem a | 统计字符 | 2 | 4 | ||
| 1613 Problem b | #2063. 「HAOI2016」字符合并 | ||||
| 1625 Problem c | #2106. 「JLOI2015」有意义的字符串 | ||||
| 1793 Problem d | 难了一点 | 字符串 桶 | |||
| 1796 Problem e | 统计字符个数 | 2 | 3 | ||
| 3733 Problem f | 识数 | 字符串 | |||
| 3738 Problem g | 命令 | 字符串 | |||
| 3740 Problem h | 判断子序列 | 字符串 | |||
| 3779 Problem i | 删除指定字符（2） | 字符串 桶 | |||
| 3850 Problem j | 出现最多的字符 | 字符串 桶 | |||
| 3880 Problem k | 老师点名2 | 字符串映射（map) | |||
| 3883 Problem l | 网络连接 | CSP-J 第三题 字符串 映射 | |||
| 3889 Problem m | 提取数字 | 字符串 | |||
| 3931 Problem n | 忽略空格和大小写的字符串比较 | 字符串比较 | |||
| 3947 Problem o | 字符串中的整数 | 字符串 | |||
| 3948 Problem p | 判断子序列 | 字符串 | |||
| 3977 Problem q | 大整数去前导0 | 字符串 高精度 | 2 | 5 | |
| 3978 Problem r | 统计所有字符出现的次数 | 字符串 | |||
| 3979 Problem s | 获取子串 | 字符串 | 1 | 1 | |
| 3980 Problem t | 句首去空格 | 字符串 | 1 | 1 | |
| 3981 Problem u | 单词有多少2 | 字符串 | |||
| 3982 Problem v | 忽略空格的字符串比较 | 字符串比较 | |||
| 3983 Problem w | 忽略大小写的字符串比较 | 字符串比较 | 1 | 1 | |
| 3984 Problem x | 字符串比较大小 | 字符串比较 | 1 | 1 | |
| 3985 Problem y | 大整数比较大小 | 字符串比较 | 2 | 5 | |
| 3986 Problem z | 字符串简单输出（2） | 字符串 | 1 | 4 | |
| 3987 Problem 0 | 字符串的简单输出 | 字符串 | 1 | 4 | |
| 4012 Problem 1 | 输出小写字母 | 简单输出（字符） | 1 | 1 | |
| 4015 Problem 2 | 输出5个字符 | 简单输出 | 1 | 1 | |
| 4042 Problem 3 | 能否被9整除 | 数字字符串 | 1 | 2 | |
| 4065 Problem 4 | 判断字符 | 2 | 2 | ||
| 4075 Problem 5 | 统计数字字符个数 | 字符串 | 2 | 3 | |
| 4076 Problem 6 | 找第一个只出现一次的字符 | 字符串 | 1 | 1 | |
| 4077 Problem 7 | 字符串的长度 | 字符串 | 2 | 2 | |
| 4078 Problem 8 | 大小写字母互换 | 字符串 | 1 | 1 | |
| 4079 Problem 9 | 平方和 | 字符串 | 1 | 1 | |
| 4080 Problem | 猜字谜（字符串版） | 字符串 | 2 | 4 | |
| 4081 Problem | 验证子串 | 字符串 | 2 | 2 | |
| 4082 Problem | 过滤多余的空格 | 字符串 | 1 | 2 | |
| 4083 Problem | X星球的翻译官（数据减弱版） | 字符串 | 1 | 4 | |
| 4084 Problem | 最小字符串与最大字符串 | 字符串 | |||
| 4085 Problem | 混乱的数字 | 字符串 | |||
| 4087 Problem | 被点名的字符 | 字符串 |