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12 votes
4 answers
415 views

One-dimensional map colouring

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17 answers
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Just another traffic jam!

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Extract a string from a given string

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122 answers
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173 answers
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28 votes
37 answers
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15 votes
19 answers
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Last Week Day Of The Month

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140 answers
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26 votes
58 answers
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Is it a pure word?

26 votes
45 answers
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Does the nth char equal the nth from last char?

18 votes
10 answers
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Electron Configuration

26 votes
59 answers
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"Hello, World!"

23 votes
29 answers
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Get the Systematic Chemical Symbol

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