deveshRead all of stdin. Print the number of lines that contain at least one non-whitespace character.
Example: stdin: error: timeout <blank> ok stdout: 2
Useful when skimming logs and metrics dumps.
// code challenge
Count non-empty lines
~15 min
SRE-flavored warm-up: count log lines that are not blank.
Language: · Judge0
// sample tests
stdin"a\nb\nc\n" →stdout"3"stdin"x\n\ny\n" →stdout"2"stdin"\n\n" →stdout"0"
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