LeetCode: 171 Excel Sheet Column Number(easy) 题目:Related to question Excel Sheet Column TitleGiven a column title as appear in an Excel sheet, return its corresponding column number.For example:A -> 1 B -> 2 C -
Leetcode-26-easy Remove Duplicates from Sorted array Question Given a sorted array, remove the duplicates in place such that each element appear only once and return the new length. Do not allocate extra space for another array, you must do this in place with constant memory. For example, G...
给定一个字符串,找到其中第一个不重复的字符,并返回它的下标。如果不存在,则返回-1。在字符串“leetcode”中,第一个不重复的字符是“l”,其下标为0;在字符串“loveleetcode”中,第一个不重复的字符是“v”,其下标为2。 相关知识点: 试题来源: 解析 对于输入字符串的每个字符,统计其出现次数后遍历原字符...
return ' '.join(word[::-1] for word in s.split()) 1. **分割字符串**:使用 `s.split()` 将输入字符串按空格分割成单词列表。例如,"Let's take LeetCode contest" 分割为 `["Let's", "take", "LeetCode", "contest"]`。2. **反转每个单词**:通过切片操作 `[::-1]` 对每个单词进行...
LeetCode: 171 Excel Sheet Column Number(easy) 题目:Related to question Excel Sheet Column TitleGiven a column title as appear in an Excel sheet, return its corresponding column number.For example:A -> 1 B -> 2 C -> 3 ... Z -> 26 AA -> 27 AB -> 28代码:...