Learned from Solution 883700, by Tim. run this just for checking: I reckon that function "sum" in that solution is redundant, and my guessing seems to be right.
Quick response! Seems 0 is better than infinity...
lol~ yes, in terms of code size, 0 is better than Inf :-)
given 3 sides, find area of this triangle
Return unique values without sorting
Convert hex color specification to MATLAB RGB
Sophie Germain prime
Identify the sequence
Sorting integers by their digits (Level 2)
Sorting integers by their digits (Level 4)
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