Swift Array Programming Exercises: Check whether the first element and the last element of a given array of integers are equal

Last update on December 21 2024 10:28:38 (UTC/GMT +8 hours)

Write a Swift program to check whether the first element and the last element of a given array of integers are equal. The array length must be 1 or more.

Pictorial Presentation:

Sample Solution:

Swift Code:

func check_first_last(_ arra: [Int]) -> Bool {
    guard arra.count > 0 else 
    {
        return false
    }
    if arra.first == arra.last 
    {
        return true
    } else
    {
        return false
    }
}
print(check_first_last([1, 2, 3]))
print(check_first_last([1, 2, 3, 1]))
print(check_first_last([1, 2, 2, 1]))
print(check_first_last([1]))

Sample Output:

false
true
true
true

Swift Programming Code Editor:

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