東部戰區應對台海與東海局勢，在當前台海緊張與中日關係趨冷的背景下尤為關鍵。楊志斌曾長期在東南沿海空軍系統任職，擔任過空軍福州指揮所司令員、南部戰區副司令員等職，對台海局勢知之甚詳。
思路：单调递增栈 + k 控制删除次数。高位越小整体越小，遇更小数字时弹出栈顶大数（仅当 k0）；栈空且当前为 0 则跳过（避免前导零）；若遍历完 k 仍0，从末尾再删 k 位。
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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.
The blocking order was issued on February 24 under Section 69A of India’s Information Technology Act, according to a source familiar with the matter. The provision empowers the government to restrict public access to online content.
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