Unfortunately, your checker does only include 4 digits of accuracy, and therefore the 'correct' solution is not accepted, only a hard-coded variant.
It is always better to have multiple tests, to avoid non-generic solutions to problems.
Hello, jamal hasoon. I completely agree with the preceding comment. Furthermore, it is very strongly recommended to write your own general solution code, to ensure compatibility of the inputs and the target solution in the Test Suite. —DIV
Alternatively, if you intend that users should round their results, then please include that instruction explicitly in the Problem Statement.
Another point: please do not include so much sample code in the Solution Template that is seen by everybody.
Lastly, it would be clearer to refer to the "decimal part" (or "fractional part"), rather than "fraction part".
See Problem 44521 for more ideas. —DIV
Project Euler: Problem 8, Find largest product in a large string of numbers
middleAsColumn: Return all but first and last element as a column vector
Set the array elements whose value is 13 to 0
Divisors of an integer
Pernicious Anniversary Problem
Zigzag of square matrix
Minimum Maximum Sort Array
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