原创 leetcode筆記：Game of Life

一. 題目描述 According to the Wikipedia’s article: “The Game of Life, also known simply as Life, is a cellular automaton

2020-06-19 14:12:58

原创 leetcode筆記：Coin Change

一. 題目描述 You are given coins of different denominations and a total amount of money amount. Write a function to comp

2020-06-19 13:12:04 1

原创 leetcode筆記：Missing Number

一. 題目描述 Given an array containing n distinct numbers taken from 0, 1, 2, ..., n, find the one that is missing from

2020-06-19 12:02:34

原创 leetcode筆記：Increasing Triplet Subsequence

一. 題目描述 Given an unsorted array return whether an increasing subsequence of length 3 exists or not in the array. Fo

2020-06-19 12:02:33

原创 leetcode筆記：Contains Duplicate III

一. 題目描述 Given an array of integers, find out whether there are two distinct indices i and j in the array such that

2020-06-19 12:02:33

原创 leetcode筆記：Wiggle Sort

一. 題目描述 Given an unsorted array nums, reorder it in-place such that nums[0] <= nums[1] >= nums[2] <= nums[3]… For e

2020-02-20 21:30:05

原创 leetcode筆記：Find the Duplicate Number

一. 題目描述 Given an array nums containing n + 1 integers where each integer is between 1 and n (inclusive), prove that

2020-02-20 21:30:05

原创 leetcode筆記：Super Ugly Number

一. 題目描述 Write a program to find the nth super ugly number. Super ugly numbers are positive numbers whose all prime

2020-02-20 21:30:05

原创 leetcode筆記：Longest Increasing Path in a Matrix

一. 題目描述 Given an integer matrix, find the length of the longest increasing path. From each cell, you can either mov

2020-02-20 21:30:05

原创 leetcode筆記：Range Sum Query 2D - Immutable

一. 題目描述 Given a 2D matrix matrix, find the sum of the elements inside the rectangle defined by its upper left corne

2020-02-20 21:30:05

原创 leetcode筆記：Bitwise AND of Numbers Range

一. 題目描述 Given a range [m, n] where 0 <= m <= n <= 2147483647, return the bitwise AND of all numbers in this range,

2020-02-20 21:30:05

原创 leetcode筆記：H-Index II

一. 題目描述 Follow up for H-Index: What if the citations array is sorted in ascending order? Could you optimize your al

2020-02-20 21:30:05

原创 leetcode筆記：Maximum Product of Word Lengths

一. 題目描述 Given a string array words, find the maximum value of length(word[i]) * length(word[j]) where the two words

2020-02-20 21:30:05

原创 leetcode筆記：Contains Duplicate

一. 題目描述 Given an array of integers, find if the array contains any duplicates. Your function should return true if

2020-02-20 21:30:05

原创 Unix NetWork Programming：配置unp.h頭文件環境

在閱讀Unix網絡編程（第三版）的過程中發現（UNP），書中的代碼只需要包含#include "unp.h"即可編譯，百度了一下，有不少配置unp.h頭文件環境的文章，因此試着操作了一下，以便自己日後查閱。 一、準備工作 下載源代

2020-02-20 21:30:05