bigPyE - Online C Compiler & Debugging Tool

#include <stdio.h>
#include <limits.h> // For INT_MIN

int main() {
    int n;

    // Get the size of the array from the user
    printf("Enter the number of elements in the array: ");
    scanf("%d", &n);

    // Declare a single-dimensional array of size n
    int arr[n];

    // Read elements into the array
    printf("Enter %d integers:\n", n);
    for (int i = 0; i < n; i++) {
        printf("Element %d: ", i + 1);
        scanf("%d", &arr[i]);
    }

    // Handle edge cases for arrays with less than 2 elements
    if (n < 2) {
        printf("Cannot find the second largest element for an array with less than 2 elements.\n");
        return 0;
    }

    // Initialize largest and second largest
    int largest = INT_MIN;
    int secondLargest = INT_MIN;

    // Find the largest and second largest elements
    for (int i = 0; i < n; i++) {
        if (arr[i] > largest) {
            secondLargest = largest; // Current largest becomes second largest
            largest = arr[i];        // New largest
        } else if (arr[i] > secondLargest && arr[i] != largest) {
            secondLargest = arr[i]; // Update second largest
        }
    }

    // Print the second largest element
    if (secondLargest == INT_MIN) {
        printf("There is no distinct second largest element (e.g., all elements are the same).\n");
    } else {
        printf("The second largest element in the array is: %d\n", secondLargest);
    }

    return 0;
}