Why there is no output

Question

https://code.sololearn.com/c39egb5w084t/?ref=app
https://code.sololearn.com/c39egb5w084t/?ref=app

Answer 1

Then explain this:
https://code.sololearn.com/c3CN8QBQ855G/?ref=app

Answer 2

Because you want to output @ if j is greater or equal to a, which is [1-6], but j is 0

Answer 3

But I cancelled 1 it is still not working

Answer 4

Try using for j <= a

Answer 5

There is a error in expression <=

Answer 6

<=

Answer 7

Still error

Answer 8

Should I use array for storing diff values

Answer 9

Dude, its j <= a
Not =<
=< is wrong

Answer 10

Or large size

Answer 11

Yes I did it is showing error

Answer 12

Now it is working when I add double int at a