Question 1 contains four billion random permutation of integer file 32 to find out whether there is a digital
Solution: Bitmap law
2 prosequence 123456 problem, how to achieve fast compilation of left or right shift operator
Solution: Three flip
For example 123456-> 456123
The first step requires: reverse (123) Step: reverse (456) Third step: reverse (321654);
Mathematics level (the X- T the Y- T ) T = (YX) it
Question 3 quickly find a number (must be ordered) in an ordered sequence, it can quickly become disorderly and orderly
Solution: binary search algorithm complexity of the algorithm (logn)
Question 4