But I have a O(1) solution :D
Because O(n) runtime is impossible.
The output string is already O(n^2) so you can't do better than that.
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But I have a O(1) solution :D
Because O(n) runtime is impossible.
The output string is already O(n^2) so you can't do better than that.
This comment is hidden because it contains spoiler information about the solution