Assume that N=2M and FIFO is used. If the string p1,p2,...,pN is repeated three times, then the number of page faults is

单项选择题设有关系R(A,B,C)，在下列的等式中，不成立的是

单项选择题Suppose elements in array A are already sorted ascending order of their values when the code begins to run, then execution time of the code will be