Your LenTestA is exponential
That would be quadratic growth. You have a series of operations that grows linearly, and your number of invocations grows linearly with line length.

#11929 First ask yourself `How would I do this without a computer?' Then have the computer do it the same way.

In reply to Re^2: performance of length() in utf-8 by kennethk
in thread performance of length() in utf-8 by seki

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