It is more idiomatic (and often simpler) to use Perl-style rather than C-style loops.
Yes, but it won't work if the numbers are too large for integers and have to use floating point. Then only C style loops will work.
my @collect = map 0, 0 .. NUM_TOSSES;
Why are you initializing @collect with NUM_TOSSES + 1 elements?
The idiomatic way to initialize @collect with NUM_TOSSES elements is usually:
my @collect = ( 0 ) x NUM_TOSSES;
for ($i = 0; $i < $numTosses+1; $i++) {
foreach my $tailsCt ( 0 .. NUM_TOSSES )
You have an off-by-one error, it should be:
foreach my $tailsCt ( 0 .. NUM_TOSSES - 1 )
Update: oops, I misread the original code.
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