Problem with my code

#1

This is the link to my code - https://ide.codingblocks.com/s/355053
My code is showing TLE for a 8 digit string, what should I do for that?

#2

your code is correct but it is giving TLE in last 2 testcases
this is because of set

NOTE: DO NOT USE MAP OR SET.
So, please think of an approach that do not uses set or map.

Reference Code

#3

In the code that you’ve referenced here, the global variable c’s value is 0 globally, how is it changing according to the operations in permute() when it’s used in the main(), won’t it use the global value here?
I’m a little confused with this, please help me out

#4

Can somebody please reply to this post?

#5

global variable can be changed from any function
in main() we are just using c not updating it

#6

Okay, but the value of c that main() is using is not zero(global value), instead it is the changed value of c obtained from permute(), right?
This is bugging me, can you please explain how this works?

#7

yes
we are increasing c in permute()
after complete execution of permute()
c will be the size of ans array
and then we use it in main()

#8

So basically we’re using the updated value of c that is obtained from permute() in our main(), right?

#9

So basically we’re using the updated value of c that is obtained from permute() in our main(), right?
yes