Shortest distance between points algorithm - Stack Overflow
2009年10月21日 · Here is a code example demonstrating how to implement the divide and conquer algorithm. For the algorithm to work, the points x-values must be unique. The non-obvious part of the algorithm is that you must sort both along the x and the y-axis. Otherwise you can't find minimum distances over the split seam in linear time.
algorithm - Finding anagrams for a given word - Stack Overflow
2017年4月27日 · Example algorithm: Open dictionary Create empty hashmap H For each word in dictionary: Create a key that is the word's letters sorted alphabetically (and forced to one case) Add the word to the list of words accessed by the hash key in …
algorithm - how do I create a line of arbitrary thickness using ...
Here is a paper and Delphi implementation of a modified version of Bresenham's algorithm for drawing thickened lines. You may also want to take a look at Anti-Grain Geometry , a library for high-quality and high-performance software rendering of 2D graphics.
algorithm - Finding all possible combinations of numbers to reach …
2011年1月8日 · Here is a Java version which is well suited for small N and very large target sum, when complexity O(t*N) (the dynamic solution) is greater than the exponential algorithm. My version uses a meet in the middle attack, along with a little bit shifting in order to reduce the complexity from the classic naive O(n*2^n) to O(2^(n/2)) .
algorithm - Finding the highest 2 numbers- computer science
2012年9月21日 · The algorithm I gave takes exactly n+log(n)-2 comparisons (not just asymptotically). Note that the measure in question is the number of comparisons, not running time. (But n+log(n) is O(n), so running time is O(n) too.)
The best shortest path algorithm - Stack Overflow
The algorithm has the same worst case complexity as Djikstra's, but in the average case the expected runtime is linear in the size of the graph, which is much faster than the pure Dijkstra. The idea of the algorithm is based on the idea, that there is no need to always poll the minimum edge from the queue.
algorithm - How do I check if a number is a palindrome? - Stack …
2008年10月13日 · @Steve314 to describe an algorithm to convert an integer to a string, which of course requires you to understand modulo - no. Computing in the target number system, being able to add will do (think how you commonly convert from decimal to binary - being used to think computation means binary doesn't mean you can't do, e.g., decimal arithmetic (and you can …
Algorithm to return all combinations of k elements from n
2008年9月24日 · doc_180: Chase's algorithm is more complicated than the other algorithms but has the added benefit that each successive combination differs from the previous by just one element. This can be useful if the work that needs to be performed on each combination can be made faster if using the partial work of the previous combination.
algorithm - What is the best way to compute trending topics or …
2017年5月23日 · The algorithm should weight the topics which are always hot less. The topics which normally (almost) no one mentions should be the hottest ones. Google offers "Hot Trends", topix.com shows "Hot Topics", fav.or.it shows "Keyword Trends" - all these services have one thing in common: They only show you upcoming trends which are abnormally hot at ...
algorithm - How is pi (π) calculated? - Stack Overflow
2016年10月29日 · I believe the algorithm you're looking for is what's known as a "Spigot Algorithm." One particular kind is the BBP (Bailey-Borwein-Plouffe) formula. I believe that's what you're looking for.