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if (n / k) % 2 is not ZERO, print -1 (as this must be zero to be abolute permutation), how did you know this?
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Absolute Permutation
You are viewing a single comment's thread. Return to all comments →
if (n / k) % 2 is not ZERO, print -1 (as this must be zero to be abolute permutation), how did you know this?