InterviewBit Problems   NQueens : Solved

About the NQueens : Solved category (1)
Very fast and memory efficient better than editorial (1)
Using Backtracking in c++: Small and easy solution (2)
Authentic Solution: Using 3D vectors - Deals with int rather than strings (1)
C++ Nqueen solution c++ (1)
C++ easy code short solution brute (1)
Bit long but simple (1)
Short solution in c++ , checking if a position is safe in O(1) (1)
Clean python code (1)
Easy and clean c++ solution (1)
Straight forward soln (1)
Easy to understand c++ sol (1)
Clean & detailed solution with proper output in C++ (4)
Approach with checking for columns(left side) (2)
Took more than 1 hour (1)
C++ solution // Commented//just go through once, you may get an idea (1)
C++ solution..I have commented . Check at least once ,you may get an idea (1)
A very very clear & intuitive [Java] solution (1)
Why am i seeing a runtime error? somebody help (1)
Easily understandable python solution (1)
Python backtracking solution (1)
NQueen is important question from interview point of view... dont ignore this question (1)
Recursive solution of this problem in O(n) space (1)
Backtrack solution (1)
Python backtracking (1)
C++ Solution Recursive (2)
Could anyone tell me what's wrong with this solution. It's giving no output (1)
My Iterative Solution (1)
Can anyone tell me how to further optimize my solution? (1)
Complexity of the solution (1)