N-queens(Leetcode) JAVA Solution.

[Aarav238]

I want t o add java Solution of N-queens. I will solve it using backtracking.
Please assign this issue to me.
I will raise PR asap after assigned.

[Naseem010]

@Adarsh-jaiss @gantavyamalviya can u please assign me on this problem I am pretty confident in that problem I can solve and make it understandable in easy way

[Aarav238]

@Adarsh-jaiss @gantavyamalviya Please assign this issue to me.

[nilesh05apr]

Hello @gantavyamalviya i have made a pr for this problem can you please review it. happy coding :)

[yashsaxena003]

Please assign this issue to me. I will solve it in least complexity.

[Kushagra-Rai-Nova]

Please assign this issue to me. I will solve it in least complexity.