mirror of
https://github.com/ruby/ruby.git
synced 2022-11-09 12:17:21 -05:00
19 lines
253 B
Ruby
19 lines
253 B
Ruby
|
# sieve of Eratosthenes
|
||
|
|
sieve = []
|
||
|
|
if ! max = ARGV.shift; max = 100; end
|
||
|
|
max = max.to_i
|
||
|
|
|
||
|
|
print "1"
|
||
|
|
for i in 2 .. max
|
||
|
|
begin
|
||
|
|
for d in sieve
|
||
|
|
fail if i % d == 0
|
||
|
|
end
|
||
|
|
print ", "
|
||
|
|
print i
|
||
|
|
sieve.push(i)
|
||
|
|
rescue
|
||
|
|
end
|
||
|
|
end
|
||
|
|
print "\n"
|