RosettaCodeData/Task/Executable-library/Pike/executable-library-3.pike

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void main()
{
mapping long = ([]);
foreach (allocate(100000); int start; )
long[sizeof(.Hailstone.hailstone(start))]++;
analyze(long);
}
void analyze(mapping long)
{
mapping max = ([ "count":0, "length":0 ]);
foreach (long; int length; int count)
{
if (count > max->count)
{
max->length = length;
max->count = count;
}
}
write("most common length %d appears %d times\n", max->length, max->count);
}