lc1078 Occurrences After Bigram trim().split()将原字符串转换成words数组 依次匹配first和second,若两者都能匹配上,则下一个单词为third,将其加入List<String> res 返回 res.toArray(new String[0]) class Solution { public String[] findOcurrences(String text, String first, String second) { Strin…

problem 1078. Occurrences After Bigram 题意 solution: class Solution { public: vector<string> findOcurrences(string text, string first, string second) { string bigram = first + ' ' + second + ' '; vector<string> res; int n = bigram.size(); auto…

题目如下: Given words first and second, consider occurrences in some text of the form "first second third", where second comes immediately after first, and third comes immediately after second. For each such occurrence, add "third" to the…

这是小川的第392次更新,第422篇原创 01 看题和准备 今天介绍的是LeetCode算法题中Easy级别的第254题(顺位题号是1078).给出单词first和单词second,以"first second third"的形式在某些文本中出现,其中second在first之后立即出现,third在second之后立即出现. 对于每个此类事件,将"third"添加到答案中,然后返回答案. 例如: 输入:text = "alice is a good gi…

作者: 负雪明烛 id: fuxuemingzhu 个人博客: http://fuxuemingzhu.cn/ 目录 题目描述 题目大意 解题方法 字符串分割遍历 日期 题目地址:https://leetcode.com/problems/occurrences-after-bigram/ 题目描述 Given words first and second, consider occurrences in some text of the form "first second third&quo…

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这是小川的第次更新,第篇原创 看题和准备 今天介绍的是LeetCode算法题中Easy级别的第269题(顺位题号是1207).给定一个整数数组arr,当且仅当该数组中每个元素的出现次数唯一时,返回true. 例如: 输入:arr = [1,2,2,1,1,3] 输出:true 说明:值1出现3次,值2出现2次,值3出现1次.没有两个值出现的次数相同. 输入:arr = [1,2] 输出:false 输入:arr = [-3,0,1,-3,1,1,1,-3,10,0] 输出:true 限制条件:…

题目如下: Given an array of integers arr, write a function that returns true if and only if the number of occurrences of each value in the array is unique. Example 1: Input: arr = [1,2,2,1,1,3] Output: true Explanation: The value 1 has 3 occurrences, 2 h…

Given two strings s and t, determine if they are isomorphic. Two strings are isomorphic if the characters in s can be replaced to get t. All occurrences of a character must be replaced with another character while preserving the order of characters.…

Problem: Given two strings s and t, determine if they are isomorphic. Two strings are isomorphic if the characters in s can be replaced to get t. All occurrences of a character must be replaced with another character while preserving the order of cha…