stack2.pop(); // 弹出无效的候选值
res[realIdx] = stack.length ? stack.at(-1) : -1;
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"In China, the people who make motors are getting together with the people who make hand hardware and basically creating bespoke motors that can fit within joints and fingers. It's probably going to work as an effective hand," he says.
Critical Path CSS generation and deferred loading of CSS files