Swift Array Programming Exercises: Check if a given array of integers contains a 3 next to a 3 somewhere

Swift Array Programming: Exercise-27 with Solution

Write a Swift program to check if a given array of integers contains a 3 next to a 3 somewhere.

Pictorial Presentation:

Sample Solution:

Swift Code:

func has33(array_nums: [Int]) -> Bool {
    for x in 0..<array_nums.count-1
    {
        if array_nums[x] == 3 && array_nums[x+1] == 3
        {
            return true
        }
    }
    return false
}
print(has33(array_nums: [1, 3, 3]))
print(has33(array_nums: [1, 3, 1, 3]))
print(has33(array_nums: [3, 1, 3, 3]))
 

Sample Output:

true
false
true

Swift Programming Code Editor:

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