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Calculate Log2n without using built-in function

Objective: Given a number n, write a program to calculate Log2n without using built-in function.

Example:

N = 32
Log232 = 5

N = 64
Log264 = 6

Approach:

  • Initialize result = 0.
  • Keep dividing the given number by 2 till number is greater than 0 and add one to the result if n is greater than equal to 1.

Code:


Output:

Log64 value: 6



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