12 lines
160 B
Plaintext
12 lines
160 B
Plaintext
include "std/io.zr"
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func main[] : i64
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n := 40
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r := 20
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out := 1
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for i in 1..r+1
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out = out * (n - (r - i)) / i
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io.println_i64(out)
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