| -- The Great Computer Language Shootout |
| -- http://shootout.alioth.debian.org/ |
| -- contributed by Mike Pall |
| |
| local co = coroutine |
| local wrap, yield = co.wrap, co.yield |
| if co.cstacksize then co.cstacksize(1) end -- Use minimum C stack. |
| |
| local function link(n) |
| if n > 1 then |
| local cofunc = wrap(link) |
| cofunc(n-1) |
| yield() |
| repeat yield(cofunc() + 1) until false |
| else |
| repeat yield(1) until false |
| end |
| end |
| |
| local N = tonumber(arg and arg[1]) or 10 |
| local cofunc = wrap(link) |
| cofunc(500) |
| local count = 0 |
| for i = 1,N do count = count + cofunc() end |
| io.write(count, "\n") |
| |
