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question_01.cpp
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question_01.cpp
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/*
==> Second Largest <==
Question Link:- https://practice.geeksforgeeks.org/problems/second-largest3735/1?page=1&difficulty[]=-2&category[]=Arrays&sortBy=submissions
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.
*/
#include <iostream>
#include <algorithm>
using namespace std;
int print2Largest(int arr[], int n) {
sort(arr, arr+n);
int lnum = arr[n-1];
if ( arr[0] == lnum ) return -1;
for ( int i = 0; i < n; i++ ) {
if ( arr[i] == lnum ) return arr[i-1];
}
return arr[n-2];
}
int main () {
int arr[] = { 10, 5, 10 };
cout << print2Largest(arr, 3);
return 0;
}