#include<iostream>
#includeclimits>
using namespace std;
int thirdSmallest(int arr[], int size) {
if (size < 3) {
cout << "Array size is less than 3." << endl;
return INT_MIN;
}
int first, second, third;
first = second = third = INT_MAX;
for (int i = 0; i < size; i++) {
if (arr[i] < first) {
third = second;
second = first;
first = arr[i];
} else if (arr[i] < second && arr[i] != first) {
third = second;
second = arr[i];
} else if (arr[i] < third && arr[i] != second && arr[i] != first) {
third = arr[i];
}
}
return third;
}
int main() {
int size;
cout << "Enter the size of the array: ";
cin >> size;
int arr[size];
cout << "Enter the elements of the array:" << endl;
for (int i = 0; i < size; i++) {
cin >> arr[i];
}
int result = thirdSmallest(arr, size);
if (result != INT_MIN) {
cout << "The third smallest number in the array is: " << result << endl;
}
return 0;
}