Middle three digits: Difference between revisions
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→C: Add output, remove superfluous initialization |
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0: Invalid length 1</pre> |
0: Invalid length 1</pre> |
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=={{header|Julia}}== |
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<lang julia>function middle(s) |
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s = string(abs(s)) |
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len = length(s) |
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assert(len >= 3 && len % 2 == 1, "Number of digits must be odd and >= 3") |
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mid = ifloor(len/2) |
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return s[mid:mid+2] |
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end |
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passing = [123, 12345, 1234567, 987654321, 10001, -10001, -123, -100, 100, -12345] |
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failing = [1, 2, -1, -10, 2002, -2002, 0] |
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for i in [passing,failing] |
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try |
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println("Number: $i ", "Answer: ",middle(i)) |
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catch e |
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println("Number: $i ", "Answer: ",e) |
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end |
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end</lang> |
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<pre>Number: 123 Answer: 123 |
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Number: 12345 Answer: 234 |
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Number: 1234567 Answer: 345 |
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Number: 987654321 Answer: 654 |
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Number: 10001 Answer: 000 |
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Number: -10001 Answer: 000 |
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Number: -123 Answer: 123 |
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Number: -100 Answer: 100 |
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Number: 100 Answer: 100 |
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Number: -12345 Answer: 234 |
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Number: 1 ErrorException("assertion failed: Number of digits must be odd and >= 3") |
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Number: 2 ErrorException("assertion failed: Number of digits must be odd and >= 3") |
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Number: -1 ErrorException("assertion failed: Number of digits must be odd and >= 3") |
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Number: -10 ErrorException("assertion failed: Number of digits must be odd and >= 3") |
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Number: 2002 ErrorException("assertion failed: Number of digits must be odd and >= 3") |
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Number: -2002 ErrorException("assertion failed: Number of digits must be odd and >= 3") |
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Number: 0 ErrorException("assertion failed: Number of digits must be odd and >= 3")</pre> |
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=={{header|Lua}}== |
=={{header|Lua}}== |