Should be `no`

.

but why? I am not being able to figure outā¦

What is the value of a_7 for that testcase?

There would not be an a7 for this oneā¦

But this array is valid as the value of N is 7 hereā¦ and a[i] is well within range??

The a_i's have to be non-zero positive integersm from the Problem statement.

but how can there be an a7 for n=7? Can you please explain?

https://www.codechef.com/viewsolution/30713719

Hit like if you understand easily by my solution.

I think you will get clear understanding of o(n) solution after reading my solution.

Remember some examples in mind:

1 2 3 4 5 6 7 7 6 5 4 3 2 1 - yes

12 3 7 3 2 1-no

There are some exception always in your code if you are getting WA.

If you want any help in your code, you can ask simply by tagging me.

There canāt - there are no Rainbow Arrays for n<13.

Hi prathameshmore, this seems to me as a Rainbow array. Can you point out exactly why this is not a rainbow array

Consider the testcase:

```
1
7
1 2 3 7 3 2 1
```

The code works good. current_no=4 and next_no=5, which will break the loop after setting flag = False. Link for my code again for visibility here

On my machine, your solution outputs

```
yes
```

for the testcase I gave you.

Hi ssjgz, found the mistake thanks. The code still does not pass #Task0 but passes #Task1. I want to know mistake or test case for the solution to fail.

Consider the testcase:

```
1
14
1 2 3 4 5 6 8 7 6 5 4 3 2 1
```

Thanks ssjgz. Found the mistakes. Was able to run both test cases correctly. Thanks for all the help.

The problem is very poorly written!

https://www.codechef.com/viewsolution/33076407

can someone pls tell where i am getting it wrong ?

it gives WA.

suggestion for any test case

Your solution fails on the sample test input - your output has to match the expected output exactly, remember!