https://leetcode.com/problems/length-of-last-word/ 题意分析: 给出只包括大小写和空格的字符,输出最后一个单词的长度。 题目思路: 从最后一个字符开始搜索,如果字符非空格,则往前推一位,直到不是空格,此时记录起始位置。然后继续搜索,直到遇到下一个空格或者到了第一个位置,记为终点位置。长度则为起始位置减...
LeetCode OJ:Length of Last Word(最后一个词的长度) 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 ...
Leetcode 34. Find First and Last Position of Element in Sorted Array 在一个有序数组中找到第一个和最后一个元素 解决思路: 利用二分法来进行位置的查找,主要涉及两个函数int lower_bound(nums, target) 和 int upper_bound(nums, target); 分别找到target的第一个和最后一个位置。 其中主要有一下几个方...
class Solution { public int lengthOfLastWord(String s) { //思路:获取去掉起始和结束的空格后字符串的长度len_strim,获取最后一次出现空格的位置loc,思考所求的最后一个单词的长度与len_strim和loc的关系,result=len_strim-loc-1 int len_strim=s.trim().length(); int loc=s.trim().lastIndexOf("...
14. 15. 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....
【LeetCode】58. Length of Last Word Introduce 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. Note: A......
【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. ...
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:
[Leetcode][python]Length of Last Word/最后一个单词的长度,题目大意找出最后一个单词的长度。注意点:忽略尾部空格不存在最后一个单词时返回0解题思路简单题,其实题目假设了不会出现数字字符等,不然这样做是过不了的。还需要判断是否这个word全为65<=ord()<=122代码c
[leetcode]Length of Last Word @ Python 原题地址:https://oj.leetcode.com/problems/length-of-last-word/ 题意: Given a stringsconsists of upper/lower-case alphabets and empty space characters' ', return the length of last word in the string....