原创 Largest Rectangle in Histogram -- 待看
Given n non-negative integers representing the histogram's bar height where the width of each bar is 1, find the area
2020-06-16 00:42:27
原创 兩個人拋硬幣來決定誰喫這個蘋果，先拋到正面者喫。問先拋者喫到蘋果的概率是多少？
兩個人拋硬幣來決定誰喫這個蘋果，先拋到正面者喫。問先拋者喫到蘋果的概率是多少？ 首先是拋的概率是1/2，這是個嵌套的無線循環的題目！想起當年考研電路題，很相似，經典。 要有總體思維，總體爲R ，分出一個，後續仍然爲無限長的電阻並聯仍
2020-06-16 00:42:17
原创 Search Insert Position
Given a sorted array and a target value, return the index if the target is found. If not, return the index where it wo
2020-02-23 10:21:29
原创 Decode Ways
A message containing letters from A-Z is being encoded to numbers using the following mapping: 'A' -> 1 'B' -> 2 ...
2020-02-23 10:21:29
原创 3Sum Closest
Given an array S of n integers, find three integers in S such that the sum is closest to a given number, target. Retu
2020-02-23 10:21:29
原创 Best Time to Buy and Sell Stock III
Say you have an array for which the ith element is the price of a given stock on day i. Design an algorithm to find t
2020-02-23 10:21:29
原创 Distinct Subsequences
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
2020-02-23 10:21:29
原创 4Sum
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 all un
2020-02-23 10:21:29
原创 Jump Game
Given an array of non-negative integers, you are initially positioned a
2020-02-23 10:21:29
原创 Jump Game II
Given an array of non-negative integers, you are initially positioned at the first index of the array. Each element
2020-02-23 10:21:29
原创 數字轉中文表示
此處表達式不超過萬。 注意的地方：1000，可以1001,即0的情況 （首，中，尾），11 ，12等，10 20 等情況！ 此處未考慮負數情況，可以加以判斷，並且在開始加入負 #include <iostream> #include <
2020-02-23 10:21:29
原创 Search a 2D Matrix
Write an efficient algorithm that searches for a value in an m x n matrix. This matrix has the following properties:
2020-02-23 10:21:29
原创 Best Time to Buy and Sell Stock II
Say you have an array for which the ith element is the price of a given stock on day i. Design an algorithm to find t
2020-02-23 10:21:29
原创 3Sum
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 i
2020-02-23 10:21:29
原创 Search for a Range
Given a sorted array of integers, find the starting and ending position of a given target value. Your algorithm's run
2020-02-23 10:21:29