Does r=uint64(308436464205151562) make sense? It seems like the argument to uint64 is a double precision number, so you have already lost the precision you are trying to gain by using uint64.
r=uint64(308436464205151562) outputs for uint64(r) 308436464205151562. However, r=308436464205151562 outputs for uint64(r) 308436464205151552. A very small loss in precision, but still a loss. The Challenge set has some numbers that use all the paint if full precision math was used. If residual paint was required as an output then full precision is needed. For solutions using p=p-2*r-1 the errors in r and p may cause issues.
Very novel input parameter adjustment to allow direct solution.
That's Muller's method which is more computationally realiable than Bhaskaracharya's.
Nice bisecting search method and anonymous function for clean appearance.
Convert hex color specification to MATLAB RGB
Find third Side of a right triangle given hypotenuse and a side. No * - or other functions allowed
Get the elements of diagonal and antidiagonal for any m-by-n matrix
Detect a number and replace with two NaN's
Image Processing 002 : Fix Vignetting in a Visible Sensor
Create Circular Perfect Square Sequence
Unique - Very Very Large Numbers
Memory Map File: Access and Update
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