Calculator program

[Hematirukala]

#include <stdio.h>
#include <limits.h>

long long second_larg_ele(int size, long long arr[]) {
if (size < 2) {
return -1; // Return -1 if there is no second largest element
}

long long largest = LLONG_MIN;
long long second_largest = LLONG_MIN;

for (int i = 0; i < size; i++) {
    if (arr[i] > largest) {
        second_largest = largest;
        largest = arr[i];
    } else if (arr[i] > second_largest && arr[i] < largest) {
        second_largest = arr[i];
    }
}

return (second_largest == LLONG_MIN) ? -1 : second_largest;

}

// Example usage
int main() {
int size1 = 8;
long long arr1[] = {20, 30, 50, 60, 70, 10, 11, 25};
printf("%lld\n", second_larg_ele(size1, arr1)); // Output: 60

int size2 = 5;
long long arr2[] = {1, 2, 3, 4, 5};
printf("%lld\n", second_larg_ele(size2, arr2)); // Output: 4

return 0;

}