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leetcode 438 解析题目描述 Given a string s and a non-empty string p, find all the start indices of p’s anagrams in s. Strings consists of lowercase English letters only and the length of both strings s and

题目描述 Given an integer n, count the total number of digit 1 appearing in all non-negative integers less than or equal to n. For example: Given n = 13, Return 6, because digit 1 occurred in...

题目： Given a string containing only digits, restore it by returning all possible valid IP address combinations. For example: Given “25525511135”, return [“255.255.11.135”, “255.255.111.35”]. (Order...

问题描述 输入一个整数，输出该数二进制表示中1的个数。其中负数用补码表示。 public class Solution { //解法一 循环次数为n二进制 1所在的最高位-最低位 /* public int NumberOf1(int n) { int count = 0; int flag = 1; while(flag...

题目描述 Find the kth largest element in an unsorted array. Note that it is the kth largest element in the sorted order, not the kth distinct element. For example, Given [3,2,1,5,6,4] and k = 2,...

题目描述 Given an array with n objects colored red, white or blue, sort them so that objects of the same color are adjacent, with the colors in the order red, white and blue. Here, we will use the ...