problem no 40:(array problem): finding the second largest element in the array.

 QUESTION:

 

Given an array Arr of size N, print second largest element from an array.

Example 1:

Input: 
N = 6
Arr[] = {12, 35, 1, 10, 34, 1}
Output: 34
Explanation: The largest element of the 
array is 35 and the second largest element
is 34.

Example 2:

Input: 
N = 3
Arr[] = {10, 5, 10}
Output: 5
Explanation: The largest element of 
the array is 10 and the second 
largest element is 5.

ANSWER:

int print2largest(int arr[], int n) {

    int i;
    if (n< 2) {
    
        return -1;
    }
       sort(arr, arr + n);
 
    for (i = n - 2; i >= 0; i--) 

    {
    
        if (arr[i] != arr[n - 1]) 

        {
                  return   arr[i];
    
        }
    }
 
    return -1;
}