}String[] arr = s.split(" ");returnarr[arr.length-1].length(); } 04 第三种解法 将原字符串首尾的空格去掉,然后找到最后一次出现空格的位置,两者相减再减1即为最后单词的长度。 public intlengthOfLastWord3(String s) { return s.trim().length()-s.trim().lastIndexOf(" ")-1; } 05 小结...
leetcode 58 Length of Last Word --- java Given a stringsconsists of upper/lower-case alphabets and empty space characters' ', return the length of last word in the string. If the last word does not exist, return 0. Note: A word is defined as a character sequence consists of non-spac...
leetcode第一刷_Length of Last Word 不是非常明确出题人的意图,事实上这道题用java的话简直是太简单了,用split处理一下,得到全部单词的一个数组,然后求最后一个的长度即可了。我个人认为java里最成功的函数就是split了,我做project时差点儿总能用到它,方便强大。 c++里面略微复杂一些,只是这也算是最简单的字...
方法2:使用字符串输入输出流直接可以自动过滤空格 class Solution { public: int lengthOfLastWord(string s) { stringstream ss(s); string word; while(ss>>word); return word.size(); } }; 1. 2. 3. 4. 5. 6. 7. 8. 9.
Can you solve this real interview question? Length of Last Word - Given a string s consisting of words and spaces, return the length of the last word in the string. A word is a maximal substring consisting of non-space characters only. Example 1:
Note: A word is defined as a character sequence consists of non-space characters only. For example, Given s = "Hello World", return 5. My Solution public class Solution { public static int lengthOfLastWord(String s) { s = s.trim(); // 去掉字符串首尾的空格 ...
LeetCode 58: Length of Last Word 題目描述 題目說明:給一個字串,裡面可能包含英文字母(alphabets) 與空格(space)。回傳最後一個單字(word)的長度。 例如: "Hello World ", 應回傳 5, 因為 World 的長度為 5。 TDD 開始 Step 1, 新增測試用例。長度為2, 不含空格的 word。 s 為"bc" ...
public class Solution { public int lengthOfLastWord(String s) { int idx = s.length() - 1; // 跳过末尾的空格 while(idx >= 0){ if(s.charAt(idx) != ' ') break; idx--; } // 记录结束位置 int end = idx; // 如果已经超界返回0 ...
【摘要】 这是一道关于最后一个单词长度的LeetCode题目,希望对您有所帮助。 题目概述: Given a string s consists of upper/lower-case alphabets and empty space characters ' ', return the length of last word in the string. If the last word does not exist, return 0. ...
java.security.InvalidKeyException: IOException : Short read of DER length 2019-01-01 21:35 −... 星朝 0 12787 [Leetcode] 58. Length of Last Word 2019-12-10 14:07 −Given a string s consisting of words and spaces, return the length of the last word in the string. A word is a...