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11
Task/Fibonacci-sequence/OCaml/fibonacci-sequence-2.ml
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11
Task/Fibonacci-sequence/OCaml/fibonacci-sequence-2.ml
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@ -0,0 +1,11 @@
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let fib_iter n =
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if n < 2 then
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n
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else let fib_prev = ref 1
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and fib = ref 1 in
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for num = 2 to n - 1 do
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let temp = !fib in
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fib := !fib + !fib_prev;
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fib_prev := temp
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done;
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!fib
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