Swift Basic Programming Exercise: Create a Swift program to count the number of 7's in a given array of integers

Last update on December 21 2024 10:29:00 (UTC/GMT +8 hours)

Write a Swift program to create a Swift program to count the number of 7's in a given array of integers.

Pictorial Presentation:

Sample Solution:

Swift Code:

func count7(_ input: [Int]) -> Int {
    var ctr = 0
    
    for num in input {
        if num == 7 {
            ctr += 1
        }
    }
    return ctr
}
print(count7([1, 2, 7]))
print(count7([1, 7, 7]))
print(count7([1, 7, 7, 4, 7]))

Sample Output:

1
2
3

Swift Programming Code Editor:

Improve this sample solution and post your code through Disqus

Previous: Write a Swift program to create a string made of every other char starting with the first from a given string.
Next: Write a Swift program to check if one of the first 4 elements in a given array of integers is a 7. The length of the array may be less than 4.