Reverse a string: Difference between revisions
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here is a 100% functionnal string reversing function: |
here is a 100% functionnal string reversing function: |
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<lang ocaml> |
<lang ocaml>let rec revs strin list index = |
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if List.length list = String.length strin |
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then String.concat "" list |
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</lang> |
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else revs strin ((String.sub strin index 1)::list) (index+1)</lang> |
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revs "Hello World!" [] 0 |
revs "Hello World!" [] 0 |
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