題目: 給定一個字符串,找到它的第一個不重復的字符,並返回它的索引。如果不存在,則返回 -1。 Given a string, find the first non-repeating character in it and return it's index. If it doesn't ...
Given a string, find the first non repeating character in it and return it s index. If it doesn t exist, return . Examples: Note: You may assume the string contain only lowercase letters. 這道題確實沒有什么難度 ...
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題目: 給定一個字符串,找到它的第一個不重復的字符,並返回它的索引。如果不存在,則返回 -1。 Given a string, find the first non-repeating character in it and return it's index. If it doesn't ...
Given a string, find the first non-repeating character in it and return it's index. If it doesn't exist, return -1. Examples: Note: You may ...
Given a string, find the first non-repeating character in it and return it's index. If it doesn't exist, return -1. Examples: Note: You may ...
給定一個字符串,找到它的第一個不重復的字符,並返回它的索引。如果不存在,則返回 -1。 C++ C C比C++麻煩很多啊。。 ...
Consider the string s to be the infinite wraparound string of "abcdefghijklmnopqrstuvwxyz", so s will look like ...
在idea中使用練習 一.先創建一個Test(練習類) 1.1.1創建數組 第二步想把數組轉為字符串打印輸出不要【】 輸出結果 ...
題目: 字符串中的第一個唯一字符:給定一個字符串,找到它的第一個不重復的字符,並返回它的索引。如果不存在,則返回 -1。 案例: 注意事項:您可以假定該字符串只包含小寫字母。 思路: 哈希表,較簡單。 程序: class Solution: def ...
lunix 如果是在 Linux 中 截取,cut, awk 就很容易搞定 1 ...