leetcode-30. Substring with Concatenation of All Words 题目: You are given a string, s, and a list of words, words, that are all of the same length. Find all starting indices of substring(s) in s tha
题意: A A A中取出一个前缀, B B B中取出一个后缀,问问拼出多少个字符串 思路: 感觉很巧妙的一道题。 首先能构造出的字符串总数为 l e n a ∗ l e n b lena*lenb lena∗lenb。 那么假设从 A A A中取出的前缀结尾字符为 x x x,那么从 B B B中取出的后缀首字符为 x x x的有 m m m个,那么将 A A A的结尾去掉或者将 B B
题目:串联所有单词的子串 You are given a string, s, and a list of words, words, that are all of the same length. Find all starting indices of substring(s) in s that is a concatenation of each word in words exact
强大的stl,还有这种操作~~ You're given a list of n strings a1, a2, ..., an. You'd like to concatenate them together in some order such that the resulting string would be lexicographically smallest. Given th
题目 You are given a string, s, and a list of words, words, that are all of the same length. Find all starting indices of substring(s) in s that is a concatenation of each word in words exactly once an
链接: UVa : http://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=24&page=show_problem&problem=1828 类型: 哈希表 原题: A language is a set of strings. And the concatenati
题目: Given an integer n, return the decimal value of the binary string formed by concatenating the binary representations of 1 to n in order, modulo 109 + 7. Example 1: Input: n = 1Output: 1Exp
文章目录 一、题目二、题解 一、题目 You are given a 0-indexed integer array nums. The concatenation of two numbers is the number formed by concatenating their numerals. For example, the concatenation of 15