w3resource

Swift Array Programming Exercises: Compute the sum of the first 2 elements of a given array of integers. Return 0 if the length of the given array is 0 and return the first element value If the array length is less than 2

Swift Array Programming: Exercise-8 with Solution

Write a Swift program to compute the sum of the first 2 elements of a given array of integers. Return 0 if the length of the given array is 0 and return the first element value If the array length is less than 2.

Pictorial Presentation:

Swift Array Programming Exercises: Compute the sum of the first 2 elements of a given array of integers. Return 0 if the length of the given array is  0 and return the first element value If the array length is less than 2

Sample Solution:

Swift Code:

func array_sum2(_ a: [Int]) -> Int {
    let size = a.count
     if size>1
       {
         return a[0] + a[1]
       }
     else
       {
           return a[0]
       }
}

print(array_sum2([1, 2, 3]))
print(array_sum2([1, 1]))
print(array_sum2([10]))

Sample Output:

3
2
10

Swift Programming Code Editor:

Improve this sample solution and post your code through Disqus

Previous: Write a Swift program to find the larger value of a given array of integers and set all the other elements with that value. Return the changed array.
Next: Write a Swift program to create a new array of length 2 containing the middle elements from two give array of integers and length 3.

What is the difficulty level of this exercise?



Follow us on Facebook and Twitter for latest update.