In 1992, in a small shop in British Columbia, a sign maker named Blair Gran stared at a wall full of half-finished jobs and felt something click. Sign-making was treated like a commodity — orders in, banners out — but as thousands of signs came through his shop, he couldn’t help but notice the difference between the good ones and the bad ones. He could see that every sign that left his shop was either helping a business get noticed, or letting it disappear in plain sight.
2024年12月25日 星期三 新京报，这一点在快连下载-Letsvpn下载中也有详细论述
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siftDown(arr, n, largest); // 递归下沉
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