despites its pass,my sol still wrong when it be the case:"n=7",because the central element always zero no matter how we change input "n",
my solution is actually wrong.but TestSuite didn't add a "n=7" case,so...
Smallest size solution here without regexp cheat nor look up table.
Sophie Germain prime
Make a 1 hot vector
Generate the Matrix!
factor to number
COUNT VOWEL 2
ZigZag matrix with reflected format
Generate binary combinations for a given number of bit(s)
Diagonal & Anti-Diagonal Matrix: Easy
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