Swift Array Programming Exercises: Check if a given array of integers contains no 2's or it contains no 5's

Last update on December 21 2024 10:28:44 (UTC/GMT +8 hours)

Write a Swift program to check if a given array of integers contains no 2's or it contains no 5's.

Pictorial Presentation:

Sample Solution:

Swift Code:

func no25(array_nums: [Int]) -> Bool {
    var num_ctr2 = 0
    var num_ctr5 = 0
    
    for num in array_nums {
        if num == 2 
        {
            num_ctr2 += 1
        } 
        else if num == 5 
        {
            num_ctr5 += 1
        }
    }
    return num_ctr2 == 0 || num_ctr5 == 0
}

print(no25(array_nums: [1, 4, 3]))
print(no25(array_nums: [1, 2, 3, 4]))
print(no25(array_nums: [1, 3, 5]))
print(no25(array_nums: [2, 5]))
 

Sample Output:

true
true
true
false

Swift Programming Code Editor:

Improve this sample solution and post your code through Disqus

Previous: Write a Swift program to test if every element is a 2 or a 5 of a given array of integers.
Next:Write a Swift program to check if a given array of integers contains a 3 next to a 3 or a 5 next to a 5, but not both.