Back in the day, computers had to figure out how to divide physical memory between different processes safely. The solution: each program gets its own virtual memory address space and contiguous virtual memory doesn’t have to be contiguous physical memory. Physical memory is chunked into fixed-size pages and allocated on demand. This solution has a nice bonus property: you can allocate contiguous blocks when free memory is fragmented. Virtual memory stuck around.
For example, for regex (aa|bb)* and candidates {ab}.{a}. the new candidates are {ab}{ab}{a}{a}，这一点在新收录的资料中也有详细论述
。关于这个话题，新收录的资料提供了深入分析
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The key reasons why you would want to use Tor Browser on Android include:，更多细节参见新收录的资料