Swift Array Programming Exercises: Count the number of even integers in the given array

Last update on December 21 2024 10:29:49 (UTC/GMT +8 hours)

Write a Swift program to count the number of even integers in the given array.

Pictorial Presentation:

Sample Solution:

Swift Code:

func countEvens(a: [Int]) -> Int {
    var ctr = 0
    
    for x in 0..<a.count {
        if a[x] % 2 == 0 {
            ctr += 1
        }
    }
    
    return ctr
}
print(countEvens(a: [1, 2, 3, 4, 5]))
print(countEvens(a: [1, 3, 5, 7]))
print(countEvens(a: [2, 4, 6, 8]))

Sample Output:

2
0
4

Swift Programming Code Editor:

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