recursive function or non-recursive that doesnt use 2 ** approach

recursive function or non-recursive that doesnt use 2 ** approach

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recursive function or non-recursive that doesnt use 2 ** approach
Tag : python , By : JSebok
Date : November 25 2020, 07:06 PM

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Recursive power function: approach

Tag : c , By : ap.
Date : March 29 2020, 07:55 AM
seems to work fine When rewriting your function, don't lose sight of the main benefit of recursion in this case, which is to reduce the number of multiplication operations required. For example, if n = 8, then it is much more efficient to compute x * x as val1, then val1 * val1 as val2, and the final answer as val2 * val2 (3 multiplications) than to compute x * x * x * x * x * x * x * x (7 multiplications).
This difference is trivial for small integers but matters if you put this operation inside a big loop, or if you replace the integers with very large number representations or maybe ginormous matrices.

int power(int, int);

int main(void)
    int x, n;
    printf("Enter a number and power you wish to raise it to: ");
    scanf_s("%d %d", &x, &n);
    printf("Result: %d\n", power(x, n));
    return 0;

int power(int x, int n)
    int m;
    if (n == 0) return 1;
    if (n % 2 == 0) {
        m = power(x, n / 2);
        return m * m;
    } else return x * power(x, n - 1);

How to approach recursive function for overlapping rectangles

Tag : javascript , By : akr
Date : March 29 2020, 07:55 AM
will help you I have an array of rectangles called myRects like so: , I think something like this could do:
iterativelyGetIntersectingRects(r, rects) {
 var inter = [];  // resulting intersecting rects
 var found = [r]; // found intersecting rects in last round (to be checked for subseq intersections)
 while(found.length) {   // while new ones found
  var a = found.shift(); // check this
  inter.push(a);         // also store to results
  var remain = [];
  while(rects.length) {      // while remaining for check
   var test = rects.shift(); // check next
   if( doIntersect(a, test))
    found.push(test);        // gotcha!
    remain.push(test);       // not yet
  rects = remain;            // remaining for check with next found
 return inter;     

C# Recursive function approach?

Tag : chash , By : Tim Coffman
Date : March 29 2020, 07:55 AM
Hope this helps You can always unwind to a while loop. Because your calls aren't altering state, this is trival.
public void ServiceFunctionality()
    bool done = false;
    while(!done) {
        done = true; //if we don't reset this, we're done.
        // Get Data From WEBAPI
        HttpClient client = new HttpClient();
        HttpResponseMessage response = response = client.GetAsync("webapi url link").Result;
        Response<ServiceWrapper> objResponse = response.Content.ReadAsAsync<Response<ServiceWrapper>>().Result;

        if (objResponse != null)
            if (objResponse.isSuccess == true)
                listContact = objResponse.data.lContact;
                int MaxPKinSelectedRecords = objResponse.data.MaxPKinSelectedRecords;
                int MaxPKinTotalRecords = objResponse.data.MaxPKinTotalRecords;

                if (listContact != null && listContact.Count>0)
                        Parallel.ForEach(listContact, contact =>
                            // some code...
                        // set loop variable
                        if (MaxPKinTotalRecords != MaxPKinSelectedRecords)
                            done = false;
                    catch (Exception ex)
                        // Logging
                // Logging
            // Logging
    catch (Exception ex)
        // Logging

How do you create a list of all the days in the month using a non recursive approach? (Recursive Sample Provided)

Tag : sql , By : Amit Battan
Date : March 29 2020, 07:55 AM
I wish this help you Often, a table called master..spt_values is used for this purpose. It is rather undocumented but generally available. Actually, any table with at least 31 rows can be used.
So, to generate the numbers and construct the date:
with n as (
      select top 31 row_number() over (order by (select null)) as n
      from master..spt_values
select datefromparts(year(getdate()), month(getdate()), n.n) as thedate
from n
where n.n <= day(eomonth(getdate()));

What is the right approach to using recursive function in a rails view?

Tag : ruby-on-rails , By : CookingCoder
Date : March 29 2020, 07:55 AM
should help you out In my opinion, this is the clearest way to recursively render components in Rails:
Inside the partial _comment.html.erb
<%= comment.data %>
<% comment.children.each do |child| %>
  <ul class="child-thread">
    <%= render partial: 'comments/comment', locals: { comment: child } %>
<% end %>
class Comment < ApplicationRecord
  has_one :parent, :foreign_key => :parent_id
  def children 
    Comment.where(parent_id: self.id)
<%= comment.data %>
<% if count < 5 %>
  <% comment.children.each do |child| %>
    <ul class="child-thread">
      <%= render partial: 'comments/comment', 
          locals: { comment: child, count: count + 1 } %>
  <% end %>
<% end %>
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