- A.48
- B.49
- C.13
- D.14
正确答案及解析
正确答案
解析
题目要求使得算法B渐进地快于算法A，即B的时间复杂度小于A的时间复杂度。
通过简单的化简我们可以得到算法A的T(n)=49T(n/4)+2n2，而算法B的T(n)=aT(n/4)+n2，而根据渐进的规则，算法A的时间复杂度应该为49T(n/4)，而算法B的时间复杂度应该为aT(n/4)，因此a的取值应该要小于49。
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