Skip to primary content
Skip to secondary content

C For Dummies Blog

Main menu

  • C For Dummies (home)
  • History
  • Series
  • Supplemental
  • Blog Miscellany

Category Archives: Solution

Post navigation

← Older posts
Newer posts →

Calculating the Subfactorial – Solution

Posted on March 8, 2024 by dgookin
Reply

Do you feel adequately deranged working this month’s Exercise? I’m more of a math fanboy than an expert, yet I enjoyed the process of coding a subfactorial based in the equation presented.
Continue reading →

Posted in Solution | Leave a reply

Positive Negative Positive Negative – Solution

Posted on February 8, 2024 by dgookin
4

This month’s Exercise presents what I often refer to as a code “toggle.” Many paths lead to a solution.
Continue reading →

Posted in Solution | 4 Replies

The swap() Function – Solution

Posted on January 8, 2024 by dgookin
3

This month’s Exercise is to code a function that swaps two variables. The challenge really isn’t to swap the variables, but to figure out how to code a function that does so.
Continue reading →

Posted in Solution | 3 Replies

Tetration – Solution

Posted on December 8, 2023 by dgookin
Reply

Tetration is a bizarre mathematical concept. I’ve watched quite a few YouTube videos where math geeks explain the details. They venture into the terrifying territory of humongous numbers that would consume the known universe. Your programming challenge for this month’s Exercise is far less massive.
Continue reading →

Posted in Solution | Leave a reply

Numbers with Unique Digits – Solution

Posted on November 8, 2023 by dgookin
1

I hope you came up with an interesting solution for this month’s Exercise, one different from my own. The goal is to output unique values from zero through ten billion, values where no two digits repeat.
Continue reading →

Posted in Solution | 1 Reply

Coin Flipping Madness – Solution

Posted on October 8, 2023 by dgookin
Reply

I hope you didn’t “flip out” over this month’s Exercise. Flipping a coin can be done by hand or by using a computer. Using a computer is easier because it can be programmed to record each flip and it saves you hand muscle molecules for flipping and the chore of writing down the results.
Continue reading →

Posted in Solution | Leave a reply

Finding Characters – Solution

Posted on September 8, 2023 by dgookin
3

The challenge for this month’s Exercise is to write the charcount() function, which returns the number of characters in a string. The character matches exactly, so don’t worry about checking uppercase and lowercase differences.
Continue reading →

Posted in Solution | 3 Replies

From camelCase to snake_case – Solution

Posted on August 8, 2023 by dgookin
2

The challenge for this month’s Exercise is to convert a name from camelCase to snake_case and vice-versa. As usual, several approaches provide a possible solution. The directions were to output the results and not store them, so my solution is rather simple.
Continue reading →

Posted in Solution | 2 Replies

The Sum of the Integer’s Digit – Solution

Posted on July 8, 2023 by dgookin
Reply

The challenge for this month’s Exercise is to tally the digits in an integer, reporting the sum. You must use math and not cheat by looking at the old solution, which I didn’t. Promise.
Continue reading →

Posted in Solution | Leave a reply

Swapping Variables – Solution

Posted on June 8, 2023 by dgookin
2

This month’s Exercise challenges you to swap two variables’ values without using a third variable. It’s a solution widely available on the Internet, but your job is to figure out the technique without looking elsewhere.
Continue reading →

Posted in Solution | 2 Replies

Post navigation

← Older posts
Newer posts →

Recent Posts

  • Tagging a Union
  • The Clock Angle Problem – Solution
  • The Scary Part of the Union
  • The Clock Angle Problem
  • Back When Unions Were Useful

Recent Comments

  • dgookin on The Clock Angle Problem – Solution
  • Chris Webb on The Clock Angle Problem – Solution
  • Chris Webb on The Clock Angle Problem – Solution
  • dgookin on The Clock Angle Problem
  • Chris Webb on The Clock Angle Problem

Meta

  • Log in
  • Entries feed
  • Comments feed
  • WordPress.org

Copyright © 1997-2026 by QPBC.
All rights reserved

Proudly powered by WordPress