Mike and GP

Mike is a naughty child. He never takes his classes seriously. He usually plays mathematical games in his boring lectures. This time he started writing an infinite GP of positive numbers with a common ratio of 2. 1,2,4,8,16,32,64,128..... He named this series as M-series and made a game. The rules of the game are as follows: You will be given an array of N numbers (0 based indexing) and will be