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 :-)
Which doors are open?
Word Counting and Indexing
Prime factor digits
Replace pattern 0 1 0 and 1 0 1
Juggler sequence revisited
Factorizing a number into a given number of factors
Number construction III
Sum of logarithms
Optimally fill a container with elements of different sizes
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