Create Alternative Square Pattern.java

Author: simranquirky

Codechef Problems/DSA Learning Series/Alternative Square Pattern.java

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+/* You're given a number N. Print the first N lines of the below-given pattern.
+
+1 2 3 4 5
+10 9 8 7 6
+11 12 13 14 15
+20 19 18 17 16
+21 22 23 24 25
+30 29 28 27 26
+Input:
+First-line will contain the number N.
+Output:
+Print the first N lines of the given pattern.
+
+Constraints
+1≤N≤200
+Sample Input 1:
+4
+Sample Output 1:
+1 2 3 4 5
+10 9 8 7 6
+11 12 13 14 15
+20 19 18 17 16
+Sample Input 2:
+2
+Sample Output 2:
+1 2 3 4 5
+10 9 8 7 6
+EXPLANATION:
+In the first example, we'll print the first 4 lines of the given pattern.
+In the second example, we'll print the first 2 lines of the given pattern. */
+
+import java.util.*;
+import java.lang.*;
+import java.io.*;
+
+/* Name of the class has to be "Main" only if the class is public. */
+class Codechef
+{
+	public static void main (String[] args) throws java.lang.Exception
+	{
+		Scanner sc= new Scanner(System.in);
+		int n= sc.nextInt();
+		for (int i=1; i<=n; i++)
+		{
+		    if(i%2!=0)
+		    {
+		        for(int j=(5*(i-1)+1);j<=(5*i);j++)
+		        {
+		            System.out.print(j+" ");
+		        }
+		         System.out.println();
+		    }
+		    else{
+		        for(int j=(5*i);j>=(5*(i-1)+1);j--)
+		    {
+		            System.out.print(j+" ");
+		    }
+		     System.out.println();
+		    }
+		   
+		    
+		}
+	}
+}