There are several syntax and a quite obvious logic one (return 0) A working version is below: #!/bin/bash factorial() { if (( $1 <= 1 )); then echo 1 else last=$(factorial $(( $1 – 1 ))) echo $(( $1 * last )) fi } factorial 5 You are missing: return is bad (should use echo) … Read more
It represents an infinite loop within the structure. An example: In [1]: l = [1, 2] In [2]: l[0] = l In [3]: l Out[3]: [[…], 2] l‘s first item is itself. It’s a recursive reference, and so python can’t reasonably display its contents. Instead it shows […]
This is clearly JVM- and possibly also architecture-specific. I’ve measured the following: static int i = 0; public static void rec0() { i++; rec0(); } public static void main(String[] args) { … try { i = 0; rec0(); } catch (StackOverflowError e) { System.out.println(i); } … } using Java(TM) SE Runtime Environment (build 1.7.0_09-b05) Java … Read more
You can try this DECLARE @Table TABLE( ID INT, ParentID INT, NAME VARCHAR(20) ) INSERT INTO @Table (ID,ParentID,[NAME]) SELECT 1, NULL, ‘A’ INSERT INTO @Table (ID,ParentID,[NAME]) SELECT 2, 1, ‘B-1’ INSERT INTO @Table (ID,ParentID,[NAME]) SELECT 3, 1, ‘B-2’ INSERT INTO @Table (ID,ParentID,[NAME]) SELECT 4, 2, ‘C-1’ INSERT INTO @Table (ID,ParentID,[NAME]) SELECT 5, 2, ‘C-2’ DECLARE … Read more
I’m not clear why you can’t use the product of the bounds and do for x in range(y exp n) where n is the # of loops…. You say y exp n will be huge, but I’m sure python can handle it. However, that being said, what about some sort of recursive algorithm? def loop_rec(y, … Read more
Best way is to use “Auto implemented properties” here. public int Test { get; set; } If not possible to use “Auto implemented properties” for some reason use _ prefix(I don’t prefer though). If you also don’t prefer to use some prefixes, then you have other option. You don’t have to write the property code … Read more
The function takes the first character of a String – str.charAt(0) – puts it at the end and then calls itself – reverse() – on the remainder – str.substring(1), adding these two things together to get its result – reverse(str.substring(1)) + str.charAt(0) When the passed in String is one character or less and so there … Read more
One – liner import os cpt = sum([len(files) for r, d, files in os.walk(“G:\CS\PYTHONPROJECTS”)])
There’s actually a very elegant way to end the recursion: template <typename Last> std::string type_name () { return std::string(typeid(Last).name()); } template <typename First, typename Second, typename …Rest> std::string type_name () { return std::string(typeid(First).name()) + ” ” + type_name<Second, Rest…>(); } I initially tried template <typename Last> and template <typename First, typename …Rest> but that was … Read more
args and argdo should do what you need, e.g. :args spec/javascripts/**/*.* :argdo %s/foo/bar/g See this page.