Cake and Precision

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Chef is baking a cake. While baking, in each minute the size of cake **doubles** as compared to its **previous size**. In this cake, baking of cake is directly proportional to its size. You are given $a$, the total time taken(in minutes) to bake the whole cake. Let cake be half baked at $k^{th}$ minute. Your task is to find the value of $k+2$. ###Input:

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solution.cppC++17

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