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Problem 2982. Get a Fibonacci number's index.

Solution 2944057

Submitted on 13 Sep 2020 by Benjamin
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Test Suite

Test Status Code Input and Output
1   Pass
x = 1; y_correct = 1; assert(isequal(isfib(x),y_correct))

2   Pass
x = 2; y_correct = 2; assert(isequal(isfib(x),y_correct))

3   Pass
x = 1.2345; y_correct = 0; assert(isequal(isfib(x),y_correct))

4   Pass
x = 4; y_correct = 0; assert(isequal(isfib(x),y_correct))

5   Pass
x = -1; y_correct = 0; assert(isequal(isfib(x),y_correct))

6   Pass
x = 89; y_correct = 10; assert(isequal(isfib(x),y_correct))

7   Pass
x = 5.731478440138172e+20; y_correct = 100; assert(isequal(isfib(x),y_correct))

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