Algorithms to Compute the Bitwise AND of Numbers in a Range

  • 时间：2020-10-11 15:25:20
  • 分类：网络文摘
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Given a range [m, n] where 0 <= m <= n <= 2147483647 (32 bit), return the bitwise AND of all numbers in this range, inclusive. Example 1: Input: [5,7] Output: 4 Example 2: Input: [0,1] Output: 0 Bruteforce Algorithm to Compute th... ...

Algorithms to Locate the Leftmost Column with at Least a One in

  • 时间：2020-10-11 15:25:20
  • 分类：网络文摘
  • 阅读：109 次
A binary matrix means that all elements are 0 or 1. For each individual row of the matrix, this row is sorted in non-decreasing order. Given a row-sorted binary matrix binaryMatrix, return leftmost column index(0-indexed) with at least a 1... ...

Dynamic Algorithm to Compute the Longest Common Subsequence

  • 时间：2020-10-11 15:25:20
  • 分类：网络文摘
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Given two strings text1 and text2, return the length of their longest common subsequence. A subsequence of a string is a new string generated from the original string with some characters(can be none) deleted without changing the relative ... ...

A Simple HTML Entity Parser in C++

  • 时间：2020-10-11 15:25:20
  • 分类：网络文摘
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HTML entity parser is the parser that takes HTML code as input and replace all the entities of the special characters by the characters itself. The special characters and their entities for HTML are: Quotation Mark: the entity is " an... ...

Compute the Maximum Score After Splitting a String

  • 时间：2020-10-11 15:25:20
  • 分类：网络文摘
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Given a string s of zeros and ones, return the maximum score after splitting the string into two non-empty substrings (i.e. left substring and right substring). The score after splitting a string is the number of zeros in the left substrin... ...

How Many Blocks and Total Rewards for a Steem Witness in the Pas

  • 时间：2020-10-11 15:25:20
  • 分类：网络文摘
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The blockchain is a public database, this shouldn’t be hard to find out. In this post we know how to call the Steem API to find out the witness that procduce each block and the reward (in VESTS) he/she collects for generating the bloc... ...

How to Find Root of N-Ary Tree using the Hash Set?

  • 时间：2020-10-11 15:25:20
  • 分类：网络文摘
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Given all the nodes of an N-ary tree as an array Node[] tree where each node has a unique value. Find and return the root of the N-ary tree. Nary-Tree input serialization is represented in their level order traversal, each group of childre... ...

Algorithm to Count the Number of Substrings With Only 1s

  • 时间：2020-10-11 15:25:20
  • 分类：网络文摘
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Given a binary string s (a string consisting only of ‘0’ and ‘1’s). Return the number of substrings with all characters 1’s. Since the answer may be too large, return it modulo 10^9 + 7. Example 1: Input: s = ... ...

Multithreading Testing using Pythons’ Low Level _threading

  • 时间：2020-10-11 15:25:20
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In Python, we can use _threading to launch a thread easily using the _thread.start_new_thread procedure. For example, 1 2 3 4 5 6 7 import _thread   def thread_proc(threadId, value):   print(threadId, value) &nb... ...

Algorithms to Compute the Math Power(a, n) in logarithm Complexi

  • 时间：2020-10-11 15:17:18
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Implement pow(x, n), which calculates x raised to the power n (xn). Example 1: Input: 2.00000, 10 Output: 1024.00000 Example 2: Input: 2.10000, 3 Output: 9.26100 Example 3: Input: 2.00000, -2 Output: 0.25000 Explanation: 2-2 = 1/22 = 1/4 =... ...