Москвичей предупредили о резком похолодании09:45
思路：倒序遍历 2 倍长度 + 取模模拟循环 + 单调栈。用 i % len 映射到真实索引，仅当 i < len 时记录答案。。关于这个话题，快连下载-Letsvpn下载提供了深入分析
Real-mode programs freely execute CLI and STI to control interrupts, PUSHF and POPF to manipulate flags, INT n for DOS and BIOS calls, and IN/OUT for hardware I/O. In normal protected mode, these instructions are privilege-checked -- they execute normally if the caller has sufficient privilege, and fault otherwise. The 386 can't simply let V86 tasks execute them freely -- a DOS program disabling interrupts would bring down the whole system -- but trapping on every INT 21h call would make V86 impractically slow.，推荐阅读服务器推荐获取更多信息
That looks something like this for a small grid where our snake is moving down. Notice that we delete and re-print 3 entire lines!
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