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-5 bytes, shorter, less buggy approach

edited Aug 6, 2019 at 16:29

edited Aug 6, 2019 at 16:29

PHP, (削除) 61 (削除ここまで) 56 bytes

foreach(str_split($argn,2)as$a)$r|=$a[0]!=$a[1];echo!$r;

Input string via STDIN, output is truthy (1) if it is double speak, and falsey (0) if it is not double speak.

answered Aug 6, 2019 at 15:49