Day17_prob2.java

/*
Consider Aman is visiting Nehru Zoo. She has seen there are N elephants standing in a row. She wants to remove the elephants having the same height standing in consecutive.Write a program for Aman so that she can get the desired sequence of elephants.

Input Format

The first line will be containing one Integer representing a number of elephants N.
The second line will contain N integers representing the heights of the elephants.

Constraints

N>2 && N<30

Output Format

The desired sequence of elephants after removing elephants having the same height standing in consecutive.

Sample Input 0

12
4 7 9 9 8 5 7 7 6 5 5 5
Sample Output 0

4 7 9 8 5 7 6 5
Sample Input 1

1
Sample Output 1

Invalid Input
*/

// kirtan jain
import java.io.*;
import java.util.*;
import java.text.*;
import java.math.*;
import java.util.regex.*;

public class Solution {
    public static void main(String args[] ) throws Exception {
        /* Enter your code here. Read input from STDIN. Print output to STDOUT */
        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt(), input, m=0;
        if(n<=2 || n>=30){
            System.out.println("Invalid Input");
        }
        else{
            int a[]= new int[n];
            for(int i=0;i<n;i++){
                input=sc.nextInt();
                if(i==0){
                    a[m]=input;
                    m++;
                }
                else if(a[m-1] != input){
                    a[m]=input;
                    m++;
                }
            }
            for(int i=0;i<m;i++){
                System.out.print(a[i]+ " ");
            }
        }
    }
}