The physical organization of the file is determined by what?
ARP protocol?
Protection into the database: security, integrity, recovery, and database concurrency?
Security of the database refers to? DBMS security mechanisms provided by what?
0-1 knapsack problem
Travelers problem
n-queens problem, backtracking, n arranged in the solution space, pruning algorithm complexity
A weighted single-source shortest path without digraph
The relationship between the value of the semaphore and the number of processes waiting
After public private inheritance and class inheritance, modifiers change relations: https://blog.csdn.net/bzhxuexi/article/details/17026149