JavaPrograms-And-HackerRank-Solutions/Duplicate.java at master · piyushkamalanand/JavaPrograms-And-HackerRank-Solutions · GitHub

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
package practicetime;
import java.util.Scanner;
public class Duplicate
{
	public static void main(String args[])
	{
		int i=0,j=1,s=1,count=0;
		Scanner sc=new Scanner(System.in);
		System.out.println(" Enter The Value Of N - ");
		int n=sc.nextInt();
		int a[]=new int[n];
		System.out.println(" Enter The Values - ");
		for(i=0;i<n;i++)
		{
			a[i]=sc.nextInt();
		}
		int c,c1=0;
		c=a[c1];
	    for(j=0;j<n;j++)
	    {
	    	if(c==a[j])
	    	{
	    		count++;
	    		if(count>=2)
	    			break;
	    	}
	    	if(j==(n-1))
	    	{
	    		c1=c1+1;
	    		if(c1<n)
	    		{
	    			j=-1;
	    		    c=a[c1];
	    		}
	    		count=0;
	    	}
	    }
	    if(count>=2)
	    {
	    	System.out.println("1");
	    }
	    else
	    {
	    	System.out.println("-1");
	    }
	}
}