Question

How to find the second largest element in an array with Swift

Answer 1

func getTheSecondlargest(_ arr: [Int]) -> Int {	
    let size: Int = arr.count;
			
	var max: Int = Int.min;
	var secondmax: Int = Int.min;
	
	for i in 1...size - 1 {
	    if (arr[i] > max) {
            secondmax = max;
            max = arr[i]; 
        } else if (arr[i] < max && arr[i] > secondmax) {
                    secondmax = arr[i]; 
                }
	}

	return secondmax;
}


let arr: [Int] = [7, 3, 0, 8, 2, 5, 99, 4, 6];
		
print(getTheSecondlargest(arr));




/*
run:

8

*/

 

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