1: /// <summary> 2: /// Assume you have a method isSubstring which checks if one word is a substring of another. 3: /// Given two strings, s1 and s2, 4: /// write code to check if s2 is a rotation of s1 using only one call to 5: /// isSubstring (i…
Problem Link: http://oj.leetcode.com/problems/word-ladder/ Two typical techniques are inspected in this problem: Hash Table. One hash set is the words dictionary where we can check if a word is in the dictionary in O(1) time. The other hash set is us…
题目说明 Given a non-empty string s and a dictionary wordDict containing a list of non-empty words, determine if s can be segmented into a space-separated sequence of one or more dictionary words. You may assume the dictionary does not contain duplicate…
An abbreviation of a word follows the form <first letter><number><last letter>. Below are some examples of word abbreviations: a) it --> it (no abbreviation) 1 b) d|o|g --> d1g 1 1 1 1---5----0----5--8 c) i|nternationalizatio|n --&…
题目: 1.1 Implement an algorithm to determine if a string has all unique characters. What if you can not use additional data structures? _________________________________________________________________ // 不允许使用额外数据结构判断一个字符串中是否所有的字符都不相同 //char * const…
1.8 Assume you have a method isSubstring which checks if one word is a substring of another. Given two strings, s1 and s2, write code to check if s2 is a rotation of si using only one call to isSubstring (e.g.,"waterbottle"is a rotation of "…
原文: Assume you have a method isSubstring which checks if one word is a substring of another. Given two strings, s1 and s2, write code to check if s2 is a rotation of s1 using only one call to isSubstring ( i.e., “waterbottle” is a rotation of “erbott…
1.1Implement an algorithm to determine if a string has all unique characters What if you can not use additional data structures? bool isUniqueChars(string str) { unsigned ; unsigned ; ; i < str.size();i++) { ; unsigned int temp; temp = flag ? <<…
[称号] 原文: 1.8 Assume you have a method isSubstring which checks if one word is a substring of another. Given two strings, s1 and s2, write code to check if s2 is a rotation of s1 using only one call to isSubstring ( i.e., "waterbottle" is a rotat…
