Second Largest.cpp

//{ Driver Code Starts
#include <bits/stdc++.h>

using namespace std;

// } Driver Code Ends
//User function template for C++
class Solution{
public:	
	// Function returns the second
	// largest elements
	
	int print2largest(int arr[], int n) {
	    // code here    
        sort(arr, arr + n);
        int sl = -1;
        for (int i = n - 2; i >= 0; i--)
        {
     
            if (arr[i] != arr[n - 1])
            {
                sl = arr[i];
                break;
                
            }
        }
    return sl;
       
	}
};

//{ Driver Code Starts.

int main() {
    int t;
    cin >> t;
    while (t--) {
        int n;
        cin >> n;
        int arr[n];
        for (int i = 0; i < n; i++) {
            cin >> arr[i];
        }
        Solution ob;
        auto ans = ob.print2largest(arr, n);
        cout << ans << "\n";
    }
    return 0;
}

// } Driver Code Ends