原创 Subsets leetcode
Given a set of distinct integers, S, return all possible subsets. Note: Elements in a subset must be in non-descendi
2020-06-23 04:41:07
原创 C++堆,棧,靜態存儲區介紹
1、棧區（stack）— 由編譯器自動分配釋放 ，存放函數參數值，局部變量值等。其 操作方式類似於數據結構中棧。 2、堆區（heap） — 一般由程序員分配釋放， 若程序員不釋放，程序結束時可能由OS回 收 。注意它與數據結構中堆是兩回事
2020-06-23 04:41:06
原创 Reverse Nodes in k-Group leetcode
Given a linked list, reverse the nodes of a linked list k at a time and return its modified list. If the number of no
2020-06-23 03:46:05
原创 Two Sum leetcode
Given an array of integers, find two numbers such that they add up to a specific target number. The function twoSum s
2020-06-23 03:46:05
原创 gitlab 解決502問題
在配置文件/ect/gitlab/gitlab.rv中寫如下語句： external_url 'IP:PORT' 一般安裝成功gitlab後，該文件會自動生成這條配置，IP和端口號是自己的服務器IP和端口號，這個地方一定要注意端口號不
2020-06-23 03:46:05
原创 Valid Sudoku and Sudoku Solver leetcode
Valid Sudoku Determine if a Sudoku is valid, according to: Sudoku Puzzles - The Rules. The Sudoku board could be par
2020-06-23 03:45:54
原创 Distinct Subsequences leetcode
Given a string S and a string T, count the number of distinct subsequences of T in S. A subsequence of a string is a
2020-06-23 03:45:43
原创 Gas Station leetcode
There are N gas stations along a circular route, where the amount of gas at station i is gas[i]. You have a car with
2020-02-21 10:16:02
原创 Convert Sorted List to Binary Search Tree leetcode
Given a singly linked list where elements are sorted in ascending order, convert it to a height balanced BST. 方法一：把鏈表裏的
2020-02-21 10:16:02
原创 Combination Sum leetcode
Given a set of candidate numbers (C) and a target number (T), find all unique combinations in C where the candidate n
2020-02-21 10:16:02
原创 Triangle leetcode
Given a triangle, find the minimum path sum from top to bottom. Each step you may move to adjacent numbers on the row
2020-02-21 10:16:02
原创 怎樣用指定的隨機數生成函數來實現新的隨機數生成函數
阿里巴巴筆試題：假設函數rand_k會隨機返回一個【1，k】之間的隨機數（k>=2）,並且每個整數出現的概率相等。目前有 rand_7,通過調用ra
2020-02-21 10:16:02
2
原创 Longest Consecutive Sequence leetcode
Given an unsorted array of integers, find the length of the longest consecutive elements sequence. For example, Given
2020-02-21 10:16:02
1
原创 Unique Binary Search Trees II leetcode
Given n, generate all structurally unique BST's (binary search trees) that store values 1...n. For example, Given n
2020-02-21 10:16:02
原创 3Sum leetcode
Given an array S of n integers, are there elements a, b, c in S such that a + b + c = 0? Find all unique triplets in
2020-02-21 10:16:02