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Create 011_Second_Largest_Element #35

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35 changes: 35 additions & 0 deletions 002_ARRAY/011_Second_Largest_Element
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// C++ program to find the second largest element in the array
#include <iostream>
using namespace std;


int secondLargest(int arr[], int n) {
int largest = 0, secondLargest = -1;

for (int i = 1; i < n; i++) {
if (arr[i] > arr[largest])
largest = i;
}

for (int i = 0; i < n; i++) {
if (arr[i] != arr[largest]) {

if (secondLargest == -1)
secondLargest = i;
else if (arr[i] > arr[secondLargest])
secondLargest = i;
}
}
return secondLargest;
}


int main() {
int arr[] = {10, 12, 20, 4};
int n = sizeof(arr)/sizeof(arr[0]);
int second_Largest = secondLargest(arr, n);
if (second_Largest == -1)
cout << "Second largest didn't exit\n";
else
cout << "Second largest : " << arr[second_Largest];
}