To find the second largest element of the given array, first of all, sort the array.
Sorting an array

• Compare the first two elements of the array
• If the first element is greater than the second swap them.
• Then, compare 2nd and 3rd elements if the second element is greater than the 3rd swap them.
• Repeat this till the end of the array.

After sorting an array print the second element from the end of the array.