arr[j + gap] = arr[j];
或者这张带步骤说明的「功夫茶」中文信息图，从排版到意境，都给出了一套可以直接用的视觉方案。
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The Super Heavy booster managed to return to its launchpad roughly seven minutes after lift-off as planned, prompting an eruption of applause from ground control teams.
what drives my workflow is my editor. I start in Emacs, and then pop