Challenge: Write your First Higher-Order Function

Test yourself and implement what you have learned so far in this chapter.

Problem statement

You need to create a higher-order function, arithmeticCalculator, which returns the result of an arithmetic function that has two parameters of type int and returns a value of type num.

In this challenge, you will assume that the following arithmetic functions have been declared:

num add(int a, int b) {
  return a + b;
}

num subtract(int a, int b) {
  return a - b;
}

num multiply(int a, int b) {
  return a * b;
}

num divide(int a, int b) {
  return a / b;
}

For instance, the arithmeticPrinter will take the add function as input and return its result.

Input

arithmeticPrinter has three parameters.

  1. A function, f
  2. An integer, x
  3. An integer, y

The input will be a function and two integers that will be passed to the function.

Output

The output will be the result of the arithmetic function.

Sample input

add, 4, 9

Sample output

13

Test yourself

Write your code in the given area. Try the exercise by yourself first, but if you get stuck, the solution has been provided. Good luck!

Create a free account to access the full course.

Continue your learning journey with a 14-day free trial.

By signing up, you agree to Educative's Terms of Service and Privacy Policy