Given an integer N, the task is to find the smallest power of four greater than or equal to N.
Input: N = 12
24 = 16 which is the next required
greater number after 12.
Input: N = 81
- Find the fourth root of the given n.
- Calculate its floor value using floor() function.
- If n is itself a power of four then return n.
- Else add 1 to the floor value.
- Return the fourth power of that number.
Below is the implementation of the above approach:
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