原创 【筆記】mac配置文件
轉自http://blog.sina.com.cn/s/blog_62f189570102vd8a.html 1。修改profile文件：（所有用戶） #vi /etc/profile 加入：export PATH=$PATH:/u
2020-06-14 10:53:21
原创 【leetcode】Array——Largest Rectangle in Histogram（84）
題目： Given n non-negative integers representing the histogram's bar height where the width of each bar is 1, find the a
2020-06-14 10:53:21
原创 【leetcode】Array——Best Time to Buy and Sell Stock I/II/III
Best Time to Buy and Sell Stock 題目： Say you have an array for which the ith element is the price of a given stock on d
2020-06-14 10:53:11
原创 【數據結構與算法設計】希爾排序
希爾排序( 最壞O(N^2) ) 重要概念：增量序列 增量 增量hk習慣於取len/2，然後遞減hk=hk/2，直到等於1。 對於hk排序：下標爲hk，hk+1,...,len-1 元素i，i放到i，i-hk, i-2hk...正確的位
2020-06-14 10:53:11
原创 【leetcode】Array——3Sum Closest（16）
題目： Given an array S of n integers, find three integers in S such that the sum is closest to a given number, target. R
2020-06-14 10:53:11
原创 【leetcode】Array——First Missing Positive（41）
題目： Given an unsorted integer array, find the first missing positive integer. For example, Given [1,2,0] return 3, a
2020-02-25 18:14:59
原创 【leetcode】Array——Find Peak Element（162）
題目： A peak element is an element that is greater than its neighbors. Given an input array where num[i] ≠ num[i+1], fi
2020-02-25 18:14:59
原创 【leetcode】Array——Find the Duplicate Number（287）
題目： Given an array nums containing n + 1 integers where each integer is between 1 and n (inclusive), prove that at le
2020-02-25 18:14:59
原创 【leetcode】Array——Find Minimum in Rotated Sorted Array II（154）
題目：前一道題鏈接：http://blog.csdn.net/u013127687/article/details/50935939 Follow up for "Find Minimum in Rotated Sorted Array
2020-02-25 18:14:59
1
原创 【leetcode】Array——Find Minimum in Rotated Sorted Array（153）
題目： Suppose a sorted array is rotated at some pivot unknown to you beforehand. (i.e., 0 1 2 4 5 6 7 might become 4 5
2020-02-25 18:14:59
原创 【leetcode】Array——4Sum（18）
題目：Given an array S of n integers, are there elements a, b, c, and d in S such that a + b + c + d = target? Find al
2020-02-25 18:14:59
原创 【leetcode】Array——Container With Most Water（11）
題目：Given n non-negative integers a1, a2, ..., an, where each represents a point at coordinate (i, ai). n vertical l
2020-02-25 18:14:59
原创 【leetcode】Array——Construct Binary Tree from Preorder and Inorder Traversal（105）
題目： Given preorder and inorder traversal of a tree, construct the binary tree. Note: You may assume that duplicates
2020-02-25 18:14:59
原创 【leetcode】Array——Combination Sum I/II/III
Combination Sum 題目：Given a set of candidate numbers (C) and a target number (T), find all unique combinations in C wh
2020-02-25 18:14:59
原创 【leetcode】Array——Jump Game2（45）
題目： Given an array of non-negative integers, you are initially positioned at the first index of the array. Each eleme
2020-02-25 18:14:59
1