InterviewBit Problems   CHOOSE1 : Solved

About the CHOOSE1 : Solved category (1)
Choose 1 problem (1)
Thoughts on how I approached the solution (1)
Its all because of O (big-oh) (1)
According to me this is the best solution I can think of (2)
C is clearly not O(n^2) but i feel others are not either, from my perspective a , (3)