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iOS Objective-C Basics (Retired) Functional Programming in C Functions


Implement a function named "addTwo" that returns the sum of two floats. The function will accept two float numbers as arguments. It should add the two arguments together, and return the result. (No need to write the main function. Just write out the implementation for the addTwo function.)

that's the question and I wrote void addTwo() { float sum1 = 23.24; float sum2 = 234.53; float sum; sum = sum1 + sum2; printf("%f \n", sum); } as an answer. and I really don't know why I got this question wrong...

1 Answer

Joseph Kato
Joseph Kato
35,340 Points

Hi Taeho,

There are two issues with your solution:

  1. You're not accepting arguments (you're just hardcoding the numbers).

  2. You're not returning the result.

The general structure you want is something like this:

returnType addTwo(type a, type b)
    return a + b;

In this case, we're dealing with a type of float.

I guess I had problems with my English xS Thanks :)