Question

Challenge to programmers.

Write a program in Java or any other language to display the following series.

2 4 1 3 6 8 5 7 10 12 9 11.....N terms.

Restrictions:-
1. You can use only one print statement inside for loop.
2. Nested loops are not allowed.
3. There can be a maximum of five variables.

Warning:-
Don't give irrelevant/wrong ❌ answers otherwise it will be deleted.​

Answer 1

$\large\bf\red\bigstar\green{Series➠}$2 4 1 3 6 8 5 7 10 12 9 11.....N terms.

$\large\bf\red\bigstar\orange{Logic\:used:-}$

-1+3=2

2+2=4

4-3=1

1+2=3

3+3=6

6+2=8

8-3=5

5+2=7

7+3=10

.............As Repetition of .....n+3,n+2,n-3,n+2

___________________________

CODE➾

import java. util.*;

class Series

{

public static void main(String[] args)

{

Scanner sc=new Scanner(System.in);

int n=sc.nextInt();

int j=1;

for(int k=-1;n>0;n--)

{

if(j==1)

{

k+=3;

j++;

}

else if(j==2)

{

k+=2;

j++;

}

else if(j==3)

{

k-=3;

j++;

}

else if(j==4)

{

k+=2j=1;

}

System.out.print(k+"\t");}//end of for loop

}//end of main()}// end of class

______________________________

(Variable used=3)

input:-6

Output:-2 4 1 3 6 8

______________________________

$\large\bf\red\bigstar\purple{Restrictions:-➠}$

1. 1. You can use only one print statement inside for loop. checked
2. Nested loops are not allowed. checked
3. There can be a maximum of five variables. checked

____________________________

Important Point:-

• I used Scanner class here to insure that we ask user for value of n through keyboard.

• Scanner is a class in java.util package used for obtaining the input of the primitive types like int, double, etc. and strings through keyboard. It is the easiest way to read input in a Java program.

• Always divide double data type variable with integer or integer data type from double data type variable.To ensure 100% result.