string·结合·模拟模式

机器人能否返回原点

Judge whether a robot returns to the origin after a sequence of moves using string manipulation and simulation.

字符串转化后的各位数字之和

Convert a lowercase string into digits and repeatedly sum them k times using a direct string plus simulation approach.

解码斜向换位密码

Decode the Slanted Ciphertext problem requires decoding a slanted cipher using string manipulation and simulation based …

执行所有后缀指令

Simulate robot moves from every instruction index on an n x n grid, counting valid steps without leaving boundaries.

将字符串拆分为若干长度为 k 的组

Divide a string into equal groups of size k, using a fill character to complete the last group if needed.

计算字符串的数字和

Learn how to repeatedly sum digit groups in a string until its length is at most k using string simulation techniques.

故障键盘

Simulate typing on a faulty keyboard where pressing 'i' reverses the string, requiring careful string manipulation track…

候诊室中的最少椅子数

Calculate the minimum number of chairs needed in a waiting room using string simulation and event tracking efficiently.

哈希分割字符串

Hash Divided String requires splitting a string into equal parts and combining character values modulo 26 to form a new …

出现在屏幕上的字符串序列

Simulate Alice typing a target string with a special keyboard that appends letters one by one. Solve using string simula…

字符串的反转度

Calculate the reverse degree of a string by simulating operations on its characters based on their positions in the alph…

为视频标题生成标签

Transform a video caption into a valid hashtag by simulating capitalization rules and truncation for long words efficien…

用特殊操作处理字符串 I

Simulate a series of operations on a string to transform it into the desired result using special characters.

用特殊操作处理字符串 II

Solve the problem of processing strings with special operations like '*' and '#' by simulating the rules left-to-right.