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239 votes
382 answers
68k views

Is this number a prime?

24 votes
48 answers
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Sum \$\text{Square}^2\$

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61 answers
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42 answers
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8 votes
2 answers
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16 votes
19 answers
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6 answers
455 views

Block covered cycles

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17 answers
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80 answers
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53 answers
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Shortest code to determine if a string is a palindrome

23 votes
29 answers
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Test a number for narcissism

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