Q.12: How to find second largest integer in an array using only one loop?

 Ans.: The user will input an unsorted integer array and the method should find the second largest integer in the array.

• input: 3 2 1 5 4, output: 4

internal static void FindSecondLargeInArray(int[] arr)

{

int max1 = int.MinValue;

int max2 = int.MinValue;

foreach (int i in arr)

{

if (i > max1)

{

max2 = max1;

max1 = i;

}

else if (i >= max2 && i != max1)

{

max2 = i;

}

}

Console.WriteLine(max2); ;

}