using System;
public class Program
{
private static void findFirstAndLastIndex(int[] array, int element) {
int first = -1, last = -1;
int size = array.Length;
for (int i = 0; i < size; i++) {
if (array[i] != element) {
continue;
}
if (first == -1) {
first = i;
}
last = i;
}
if (first != -1) {
Console.WriteLine("First Occurrence = " + first);
Console.WriteLine("Last Occurrence = " + last);
}
else {
Console.Write("Not Found");
}
}
public static void Main(string[] args)
{
int[] array = new int[] {3, 2, 4, 7, 3, 0, 9, 8, 7, 7, 12, 18};
int element = 7;
findFirstAndLastIndex(array, element);
}
}
/*
run:
First Occurrence = 3
Last Occurrence = 9
*/
