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October 13, 2020 05:28
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Markdium-14 Fibonacci Interview Questions (SOLVED) To Brush Before Coding Interview
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| from math import * | |
| phi = 1.61803399 | |
| sqrt5 = sqrt(5) | |
| def F(n): | |
| return int((phi**n - (1-phi)**n) /sqrt5) | |
| def isFibonacci(z): | |
| return F(int(floor(log(sqrt5*z,phi)+0.5))) == z |
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