"In the 1930s, he retired and my father was appointed the warden-cum-keeper, and then I started to work and get paid by the trust in 1972 as his assistant.
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。关于这个话题，新收录的资料提供了深入分析
For the uninitiated, APL has different ways of representing trees besides the "pointers to pointers to pointers" you usually think of. One common one is having tree indices stored in an array that contain indices of their parents, where roots point to themselves (parent vector tree). Neat properties emerge from these representations. Check this out for more information. ↩︎，更多细节参见新收录的资料
“정원오, 쓰레기 처리업체 후원 받고 357억 수의계약”。新收录的资料对此有专业解读
4.10 581. 最短无序连续子数组