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Ideally, x (pivot) should have a rank that is neither too large nor too small?
a) True                                
b) False
c) N/A                                   
d) NA

a

In particular "large enough" means that the number of items is at least some fixed constant fraction of n (e.g. n/2, n/3)?
a) True                                
b) False
c) NA                                     
d) NA

a

The sieve technique is a special case, where the number of sub problems is….
a) 3                                        
b) 1
c) just 1                                
d) 0

c

We think of divide-and-conquer as breaking the problem into a small number of bigger sub-problems, which are then solved recursively?
a) True                                
b) False
c) NA                                     
d) N/A

a

A very important special case of divide-and-conquer, which I call the sieve technique?
a) True                                
b) False
c) NA                                     
d) N/A

a

In particular, is it possible to solve the selections problem in O(n) time?
a) No                                     
b) yes
c) yes. However, the solution is far from obvious                     
d) NA

c

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