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* io.c (rb_open_file): encoding in mode string was ignored if perm is
[ruby-svn.git]
/
sample
/
fib.rb
blob
cde4fba0825cff0ddf4cb9e940b042e2cdebe50b
1
# calculate Fibonacci(20)
2
# for benchmark
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def fib(n)
4
if n<2
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n
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else
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fib(n-2)+fib(n-1)
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end
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end
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print(fib(20), "\n");