Not Equal: Every domino half in this space must have a completely different number of pips.
（一）按照纳税人最近时期销售同类货物、服务、无形资产或者不动产的平均价格确定；
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The way color works in the terminal is that you echo a sequence like \x1b[38:5:161m to tell the terminal “use color 161 (red) for the foreground.” Then all characters have a foreground color of 161 until you “reset” by sending the sequence \x1b[0m.
Users do not control the font. A content moderator reviewing flagged usernames sees whatever font the moderation tool renders. If that tool uses a system sans-serif (Arial, Helvetica, San Francisco), Cyrillic homoglyphs are invisible. If it used Zapfino, every pair would look different. The font is an uncontrolled variable in every visual review process.
testSort(selectionSort, "Selection", arr, N);