zoukankan      html  css  js  c++  java
  • 【leetcode】1455. Check If a Word Occurs As a Prefix of Any Word in a Sentence

    题目如下:

    Given a sentence that consists of some words separated by a single space, and a searchWord.

    You have to check if searchWord is a prefix of any word in sentence.

    Return the index of the word in sentence where searchWord is a prefix of this word (1-indexed).

    If searchWord is a prefix of more than one word, return the index of the first word (minimum index). If there is no such word return -1.

    A prefix of a string S is any leading contiguous substring of S.

    Example 1:

    Input: sentence = "i love eating burger", searchWord = "burg"
    Output: 4
    Explanation: "burg" is prefix of "burger" which is the 4th word in the sentence.
    

    Example 2:

    Input: sentence = "this problem is an easy problem", searchWord = "pro"
    Output: 2
    Explanation: "pro" is prefix of "problem" which is the 2nd and the 6th word in the sentence, but we return 2 as it's the minimal index.
    

    Example 3:

    Input: sentence = "i am tired", searchWord = "you"
    Output: -1
    Explanation: "you" is not a prefix of any word in the sentence.
    

    Example 4:

    Input: sentence = "i use triple pillow", searchWord = "pill"
    Output: 4
    

    Example 5:

    Input: sentence = "hello from the other side", searchWord = "they"
    Output: -1 

    Constraints:

    • 1 <= sentence.length <= 100
    • 1 <= searchWord.length <= 10
    • sentence consists of lowercase English letters and spaces.
    • searchWord consists of lowercase English letters.

    解题思路:很简单的题目,挨个比对就是了。

    代码如下:

    class Solution(object):
        def isPrefixOfWord(self, sentence, searchWord):
            """
            :type sentence: str
            :type searchWord: str
            :rtype: int
            """
            word_list = sentence.split(' ')
            for i in range(len(word_list)):
                if word_list[i].startswith(searchWord):
                    return i + 1
            return -1
  • 相关阅读:
    Python Day 29 socket、scoket套接字分类、基于TCP的socket、常见错误
    Python Day 28 网络编程、OSI七层模型、三次握手和四次挥手
    Python Day 27 元类、__inti__方法、__new__方法、__call__方法、单例模式、exec与eval区别、异常处理语法
    get,post区别
    Restful API
    tcp 3次握手四次挥手
    mongodb数据库常用操作的整理
    python装饰器
    python中的*args和** kwargs区别
    Vue插件
  • 原文地址:https://www.cnblogs.com/seyjs/p/13046897.html
Copyright © 2011-2022 走看看