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Q. |
What is the least time in which we can raise a number x to power y? |
A. | o(x) |
B. | o(y) |
C. | o(log x) |
D. | o(log y) |
Answer» D. o(log y) | |
Explanation: we can optimize the code for finding power of a number by calculating x raised to power y/2 only once and using it depending on whether y is even or odd. |
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