Posts in 2021
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Most votes on amazon-web-services questions 2
May 01, 2021 in FAQ
Most votes on amazon-web-services questions 2. #11 Can an AWS Lambda function call another #12 How to safely upgrade an Amazon EC2 instance from t1.micro to large? #13 Permission denied (publickey) when SSH Access to Amazon EC2 instance #14 AWS EFS vs EBS vs S3 (differences & when to use?) #15 Connect to Amazon EC2 file directory using Filezilla and SFTP #16 Difference between Amazon EC2 and AWS Elastic Beanstalk #17 SSH to Elastic Beanstalk instance #18 EC2 instance has no public DNS #19 How do you add swap to an EC2 instance? #20 Make a bucket public in Amazon S3
Read all the top votes questions and answers in a single page. #11: Can an AWS Lambda function call another (Score: 367) Created: 2015-07-30 Last updated: 2016-05-06 Tags: node.js, amazon-web-services, aws-lambda, aws-api-gateway I have 2 Lambda …
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Most votes on amazon-web-services questions 10
May 01, 2021 in FAQ
Most votes on amazon-web-services questions 10. #91 AWS S3 CLI - Could not connect to the endpoint URL #92 AWS ECS Error when running task: No Container Instances were found in your cluster #93 Amazon products API - Looking for basic overview and information #94 How do you pass custom environment variable on Amazon Elastic Beanstalk (AWS EBS)? #95 What is the recommended way to delete a large number of items from DynamoDB? #96 What is the best way to pass AWS credentials to a Docker container? #97 AWS S3: how do I see how much disk space is using #98 Access denied; you need (at least one of) the SUPER privilege(s) for this operation #99 RRSet of type CNAME with DNS name foo.com. is not permitted at apex in zone bar.com #100 How to change User Status FORCE_CHANGE_PASSWORD?
Read all the top votes questions and answers in a single page. #91: AWS S3 CLI - Could not connect to the endpoint URL (Score: 128) Created: 2016-11-03 Last updated: 2017-09-15 Tags: amazon-web-services, amazon-s3 $ aws s3 ls Could not connect to the …
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Most votes on amazon-web-services questions 1
May 01, 2021 in FAQ
Most votes on amazon-web-services questions 1. #1 Why do people use Heroku when AWS is present? What distinguishes Heroku from AWS? #2 Trying to SSH into an Amazon Ec2 instance - permission error #3 Downloading an entire S3 bucket? #4 What is the difference between Amazon SNS and Amazon SQS? #5 Change key pair for ec2 instance #6 scp (secure copy) to ec2 instance without password #7 What is difference between Lightsail and EC2? #8 How to get the instance id from within an ec2 instance? #9 How to pass a querystring or route parameter to AWS Lambda from Amazon API Gateway #10 Benefits of EBS vs. instance-store (and vice-versa)
Read all the top votes questions and answers in a single page. #1: Why do people use Heroku when AWS is present? What distinguishes Heroku from AWS? (Score: 1129) Created: 2012-03-21 Last updated: 2017-02-19 Tags: ruby-on-rails, heroku, …
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Most votes on algorithm questions 9
May 01, 2021 in FAQ
Most votes on algorithm questions 9. #81 How to sort in-place using the merge sort algorithm? #82 Finding all possible combinations of numbers to reach a given sum #83 Mapping two integers to one, in a unique and deterministic way #84 Efficient Algorithm for Bit Reversal (from MSB->LSB to LSB->MSB) in C #85 How are ssl certificates verified? #86 Are there any cases where you would prefer a higher big-O time complexity algorithm over the lower one? #87 Recursion or Iteration? #88 What is the difference between LL and LR parsing? #89 Get a random number focused on center #90 Good Java graph algorithm library?
Read all the top votes questions and answers in a single page. #81: How to sort in-place using the merge sort algorithm? (Score: 260) Created: 2010-04-03 Last updated: 2012-10-20 Tags: arrays, algorithm, sorting, mergesort, in-place I know the …
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Most votes on algorithm questions 8
May 01, 2021 in FAQ
Most votes on algorithm questions 8. #71 How does the algorithm to color the song list in iTunes 11 work? #72 Fast ceiling of an integer division in C / C++ #73 What is a loop invariant? #74 What algorithm can be used for packing rectangles of different sizes into the smallest rectangle possible in a fairly optimal way? #75 What is dynamic programming? #76 Representing and solving a maze given an image #77 How to determine if a point is in a 2D triangle? #78 The most efficient way to implement an integer based power function pow(int, int) #79 Determine font color based on background color #80 Javascript Array.sort implementation?
Read all the top votes questions and answers in a single page. #71: How does the algorithm to color the song list in iTunes 11 work? (Score: 298) Created: 2012-11-30 Last updated: 2013-05-10 Tags: algorithm, user-interface, itunes The new iTunes 11 …
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Most votes on algorithm questions 7
May 01, 2021 in FAQ
Most votes on algorithm questions 7. #61 Extremely small or NaN values appear in training neural network #62 How do you rotate a two dimensional array? #63 Why do we use Base64? #64 Cost of len() function #65 What are the underlying data structures used for Redis? #66 Big-O for Eight Year Olds? #67 Algorithm to randomly generate an aesthetically-pleasing color palette #68 What is the difference between tree depth and height? #69 Write a program to find 100 largest numbers out of an array of 1 billion numbers #70 Peak signal detection in realtime timeseries data
Read all the top votes questions and answers in a single page. #61: Extremely small or NaN values appear in training neural network (Score: 328) Created: 2017-06-21 Last updated: 2020-08-04 Tags: algorithm, haskell, neural-network, backpropagation …
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Most votes on algorithm questions 6
May 01, 2021 in FAQ
Most votes on algorithm questions 6. #51 When is it practical to use Depth-First Search (DFS) vs Breadth-First Search (BFS)? #52 How to find list of possible words from a letter matrix [Boggle Solver] #53 Difference between Big-O and Little-O Notation #54 List of Big-O for PHP functions #55 Determine if two rectangles overlap each other? #56 What is stability in sorting algorithms and why is it important? #57 Equation for testing if a point is inside a circle #58 How to implement classic sorting algorithms in modern C++? #59 What's the best way to build a string of delimited items in Java? #60 What is the fastest way to get the value of π?
Read all the top votes questions and answers in a single page. #51: When is it practical to use Depth-First Search (DFS) vs Breadth-First Search (BFS)? (Score: 382) Created: 2010-07-26 Last updated: 2018-03-11 Tags: algorithm, graph-algorithm, …
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Most votes on algorithm questions 5
May 01, 2021 in FAQ
Most votes on algorithm questions 5. #41 Check if all elements in a list are identical #42 Constant Amortized Time #43 Generating all permutations of a given string #44 How to implement a queue using two stacks? #45 Getting the closest string match #46 Image comparison - fast algorithm #47 Best algorithm for detecting cycles in a directed graph #48 Fastest sort of fixed length 6 int array #49 Efficiency of purely functional programming #50 Why is quicksort better than mergesort?
Read all the top votes questions and answers in a single page. #41: Check if all elements in a list are identical (Score: 445) Created: 2010-10-02 Last updated: 2020-11-01 Tags: python, algorithm, comparison I need a function which takes in a list …
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Most votes on algorithm questions 4
May 01, 2021 in FAQ
Most votes on algorithm questions 4. #31 What is the most efficient/elegant way to parse a flat table into a tree? #32 How to replace all occurrences of a character in string? #33 Why does Java's hashCode() in String use 31 as a multiplier? #34 Best way to reverse a string #35 What's the Hi/Lo algorithm? #36 Algorithm to detect overlapping periods #37 Why do we check up to the square root of a prime number to determine if it is prime? #38 What is an NP-complete in computer science? #39 How to detect a loop in a linked list? #40 How does the Google "Did you mean?" Algorithm work?
Read all the top votes questions and answers in a single page. #31: What is the most efficient/elegant way to parse a flat table into a tree? (Score: 539) Created: 2008-10-10 Last updated: 2017-05-23 Tags: sql, algorithm, recursion, tree, …
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Most votes on algorithm questions 3
May 01, 2021 in FAQ
Most votes on algorithm questions 3. #21 Generate an integer that is not among four billion given ones #22 How to generate all permutations of a list? #23 What is the difference between a generative and a discriminative algorithm? #24 How to check if a number is a power of 2 #25 How can building a heap be O(n) time complexity? #26 Algorithm to return all combinations of k elements from n #27 What is the most effective way for float and double comparison? #28 A simple explanation of Naive Bayes Classification #29 What algorithms compute directions from point A to point B on a map? #30 How do you detect Credit card type based on number?
Read all the top votes questions and answers in a single page. #21: Generate an integer that is not among four billion given ones (Score: 702) Created: 2011-08-22 Last updated: 2020-03-10 Tags: algorithm, file, search, out-of-memory, memory-limit I …