更新时间：2018-11-22 15:56作者：王新老师
a. 2n b.2n-1 c.2n+1 d.2n-2
7. Time complexity of n algorithm T(n), where n is the input size ,is T(n)=T(n-1)+1/n if n>1 otherwise 1 the order of this algorithm is .
a. log (n) b. n c. n^2 d. n^n
8. The number of 1’s in the binary representation of 3*4096+ 15*256+5*16+3 are .
a. 8 b. 9 c. 10 d. 12
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