C++ Challenges

This is an introduction to how challenges on Edabit work. In the code editor below you'll see a starter function that looks like this: bool returnTrue() { } All you have to do is type return true; between the curly braces { } and then click the Check button. If you did this correctly, a celebration window will pop up. Notes If you get stuck on a challenge,

Create a function that takes two numbers as arguments and returns their sum. Examples addition(3, 2) ➞ 5 addition(-3, -6) ➞ -9 addition(7, 3) ➞ 10 Notes Don't forget to return the result. If you get stuck on a challenge, find help in the Resources tab. If you're really stuck, unlock solutions in the Solutions tab.

Create a function that takes a number as an argument, add one to the number, and return the result. Examples addition(0) ➞ 1 addition(9) ➞ 10 addition(-3) ➞ -2 Notes Do not test for overflow. Don't forget to return the result. If you get stuck on a challenge, find help in the Resources tab. If you're really stuck, unlock solutions in the Solutions tab.

Write a function that takes an integer minutes and converts it to seconds. Examples convert(5) ➞ 300 convert(3) ➞ 180 convert(2) ➞ 120 Notes Don't forget to return the result. If you get stuck on a challenge, find help in the Resources tab. If you're really stuck, unlock solutions in the Solutions tab.

Write a function that takes the base and height of a triangle and return its area. Examples triArea(3, 2) ➞ 3 triArea(7, 4) ➞ 14 triArea(10, 10) ➞ 50 Notes The area of a triangle is: (base * height) / 2 Don't forget to return the result. If you get stuck on a challenge, find help in the Resources tab. If you're really stuck, unlock solutions in the Solutio

Create a function that takes voltage and current and returns the calculated power. Examples circuitPower(230, 10) ➞ 2300 circuitPower(110, 3) ➞ 330 circuitPower(480, 20) ➞ 9600 Notes power is voltage multiplied by current.

Write a function that converts hours into seconds. Examples howManySeconds(2) ➞ 7200 howManySeconds(10) ➞ 36000 howManySeconds(24) ➞ 86400 Notes 60 seconds in a minute, 60 minutes in an hour Don't forget to return your answer.

Create a function that finds the maximum range of a triangle's third edge, where the side lengths are all integers. Examples nextEdge(8, 10) ➞ 17 nextEdge(5, 7) ➞ 11 nextEdge(9, 2) ➞ 10 Notes (side1 + side2) - 1 = maximum range of third edge. The side lengths of the triangle are positive integers. Don't forget to return the result.

There is a single operator in C++, capable of providing the remainder of a division operation. Two numbers are passed as parameters. The first parameter divided by the second parameter will have a remainder, possibly zero. Return that value. Examples remainder(1, 3) ➞ 1 remainder(3, 4) ➞ 3 remainder(-9, 45) ➞ -9 remainder(5, 5) ➞ 0 Notes The tests only us

Fix the code in the code tab to pass this challenge. Look at the examples below to get an idea of what the function should do. Examples squared(5) ➞ 25 squared(9) ➞ 81 squared(100) ➞ 10000 Notes READ EVERY WORD CAREFULLY, CHARACTER BY CHARACTER! Don't overthink this challenge; it's not supposed to be hard.

Someone has joined your game! Create joinMessage to return their username followed by " has joined!". For "Nova", return "Nova has joined!". Examples joinMessage("Nova") // "Nova has joined!" joinMessage("Pixel_7") // "Pixel_7 has joined!" joinMessage("x") // "x has joined!" Notes username contains 1 to 20 English letters, digits or underscores. Keep it

The crowd wants one more song! Create encoreTotal to return the total number of songs after the band adds one encore to songs. Examples encoreTotal(8) // 9 encoreTotal(0) // 1 encoreTotal(20) // 21 Notes songs is a whole number from 0 to 100. The encore always adds exactly one song.

Turn one word into a hashtag. Create makeHashtag to put "#" before word and return the new string. Keep the word just as it is. Examples makeHashtag("coding") // "#coding" makeHashtag("PixelArt") // "#PixelArt" makeHashtag("X") // "#X" Notes word contains 1 to 20 English letters, with no spaces or existing #. Do not change its capital letters.

Give your playlist a name to match its mood. Create playlistName to return mood followed by " Mix". For "Late Night", return "Late Night Mix". Examples playlistName("Late Night") // "Late Night Mix" playlistName("Focus") // "Focus Mix" playlistName("Rainy Day") // "Rainy Day Mix" Notes mood is a nonempty string of at most 30 characters, with no spaces at

Create shouldRetry to decide whether to try a request again. Return true only when the previous attempt failed and attempts is less than limit. Otherwise, return false. Examples shouldRetry(true, 2, 3) // true shouldRetry(false, 2, 3) // false shouldRetry(true, 3, 3) // false Notes failed is a boolean. attempts is the number of attempts already made, fro

A drive has capacity megabytes of space, and used megabytes are already taken. Create fileFits to return true if a file of size megabytes will fit. Otherwise, return false. Filling the drive exactly is allowed. Examples fileFits(100, 70, 20) // true fileFits(100, 70, 31) // false fileFits(100, 70, 30) // true Notes All three numbers are whole numbers fro

Create a function that takes length and width and finds the perimeter of a rectangle. Examples findPerimeter(6, 7) ➞ 26 findPerimeter(20, 10) ➞ 60 findPerimeter(2, 9) ➞ 22 Notes Don't forget to return the result. If you're stuck, find help in the Resources tab. If you're really stuck, find solutions in the Solutions tab.

Create a function that takes two integers and checks if they are equal. Examples isEqual(5, 6) ➞ false isEqual(1, 1) ➞ true isEqual(36, 35) ➞ false Notes N/A

Create a function that takes a number as its only argument and returns true if it's less than or equal to zero, otherwise return false. Examples lessThanOrEqualToZero(5) ➞ false lessThanOrEqualToZero(0) ➞ true lessThanOrEqualToZero(2) ➞ false Notes Don't forget to return the result. If you get stuck on a challenge, find help in the Resources tab. If you're

In this challenge, a farmer is asking you to tell him how many legs can be counted among all his animals. The farmer breeds three species: chickens = 2 legs cows = 4 legs pigs = 4 legs The farmer has counted his animals and he gives you a subtotal for each species. You have to implement a function that returns the total number of legs of all the animals. Ex