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Write code to calculate the power of a given number in minimum time complexity.

Python/Codingeasy0.2 min readPremium
Frequency
Low
Asked at 1 company
Category
179
questions in Python/Coding
Difficulty Split
127E|24M|28H
in this category
Total Bank
1,863
across 7 categories
Asked at these companies
Expedia
Expert AnswerPremium
47 wordsInterview-ready
**Binary Exponentiation:** x^n in O(log n). x^8 = ((x^2)^2)^2. While n: if n odd, result*=x; x*=x; n//=2. def power(x, n): if n < 0: return 1/power(x, -n) res = 1 while n: if n & 1: res *= x x *= x n >>= 1 return res
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