What is recursion and when should I use it? - Stack Overflow
Don't use recursion for factorials or Fibonacci numbers. One problem with computer-science textbooks is that they present silly examples of recursion. The typical examples are computing …
recursion - Determining complexity for recursive functions (Big O ...
2012年11月20日 · And here the for loop takes n/2 since we're increasing by 2, and the recursion takes n/5 and since the for loop is called recursively, therefore, the time complexity is in (n/5) * …
recursion - Java recursive Fibonacci sequence - Stack Overflow
Most of the answers are good and explains how the recursion in fibonacci works. Here is an analysis on the three techniques which includes recursion as well: For Loop; Recursion; …
performance - Recursion or Iteration? - Stack Overflow
2011年6月24日 · Recursion has a disadvantage that the algorithm that you write using recursion has O(n) space complexity. While iterative aproach have a space complexity of O(1).This is …
Real-world examples of recursion - Stack Overflow
2008年9月20日 · Recursion is a technique to keep breaking the problem down into smaller and smaller pieces, until one of those pieces become small enough to be a piece-of-cake. Of …
What are the advantages and disadvantages of recursion?
Recursion: A function that calls itself is called as recursive function and this technique is called as recursion. Pros: 1. Reduce unnecessary calling of functions. 2. Through Recursion one can …
java - What is recursion - Stack Overflow
2012年11月30日 · Recursion. A method can call itself, this is recursion. Recursive implementations of methods are often used, because they lead to compact elegant code, …
Convert recursion to iteration - Stack Overflow
Well, in general, recursion can be mimicked as iteration by simply using a storage variable. Note that recursion and iteration are generally equivalent; one can almost always be converted to …
algorithm - Understanding recursion - Stack Overflow
2009年4月5日 · Why, yes, recursion can be replaced with iteration, but often recursion is more elegant. Let's talk about trees. In computer science, a tree is a structure made up of nodes , …
Recursion vs loops - Stack Overflow
2009年3月19日 · Recursion is used to express an algorithm that is naturally recursive in a form that is more easily understandable. A "naturally recursive" algorithm is one where the answer …