I have a list containing data as such: [1, 2, 3, 4, 7, 8, 10, 11, 12, 13, 14] I’d like to print out the ranges of consecutive integers: 1-4, 7-8, 10-14 Is there a built-in/fast/efficient way of doing this? Answers: Thank you for visiting the Q&A section on Magenaut. Please note that all the … Read more
I have some geo data (the image below shows the path of a river as red dots) which I want to approximate using a multi segment cubic bezier curve. Through other questions on stackoverflow here and here I found the algorithm by Philip J. Schneider from “Graphics Gems”. I successfully implemented it and can report that even with thousands of points it is very fast. Unfortunately that speed comes with some disadvantages, namely that the fitting is done quite sloppily. Consider the following graphic:
I could use some pseudo-code, or better, Python. I am trying to implement a rate-limiting queue for a Python IRC bot, and it partially works, but if someone triggers less messages than the limit (e.g., rate limit is 5 messages per 8 seconds, and the person triggers only 4), and the next trigger is over the 8 seconds (e.g., 16 seconds later), the bot sends the message, but the queue becomes full and the bot waits 8 seconds, even though it’s not needed since the 8 second period has lapsed.
I am trying to write an algorithm that would pick N distinct items from an sequence at random, without knowing the size of the sequence in advance, and where it is expensive to iterate over the sequence more than once. For example, the elements of the sequence might be the lines of a huge file.
I am working on a problem out of CTCI.
I’m really trying to wrap my brain around how recursion works and understand recursive algorithms. For example, the code below returns 120 when I enter 5, excuse my ignorance, and I’m just not seeing why?
Here’s the very dumb way:
I have a list of numbers, e.g.
I am trying to find a frequency of each symbol in any given text using an algorithm of O(n) complexity. My algorithm looks like: