What is the fastest algorithm for circle shifting array for M positions? For example, [3 4 5 2 3 1 4] shift M = 2 positions should be [1 4 3 4 5 2 3]. Thanks a lot.

Actually it is the problem #10 of chapter 8 of Programming Pearls 2nd edition. It asked two questions: given an array A[] of integers(positive and nonpositive), how can you find a continuous subarr...

"Programming Pearls" in the column 2 ("AHA! Algorithm") talks about how binary search aids in various processes like sorting, tree traversals. But it mentions that binary seach can be used in "prog...

Paraphrasing from in "Programming Pearls" book (about c language on older machines, since book is from the late 90's): Integer arithmetic operations (+, -, *) can take around 10 nano seconds where...

Jon Bentley in Column 1 of his book programming pearls introduces a technique for sorting a sequence of non-zero positive integers using bit vectors. I have taken the program bitsort.c from here ...

From Section 15.2 of Programming Pearls The C codes can be viewed here: http://www.cs.bell-labs.com/cm/cs/pearls/longdup.c When I implement it in Python using suffix-array: example = open("iliad...

I started reading "Programming Pearls" today and while doing it's exercise I came across this question "How would you implement your own bit vector?". When I looked at the solution it was like this...

It's in the section 2.6 and problem 2, the original problem is like this: "Given a sequential file containing 4,300,000,000 32-bit integers, how can you find one that appears at least twice?" My ...

I just can't seem to understand how this would work. Question: Given a sequential file that contains at most four billion 32 bit integers in random order, find a 32-bit integer that isn't in the f...

This is the problem described in Programming pearls. I can not understand binary search method descrbied by the author. Can any one helps to elaborate? Thanks. EDIT: I can understand binary search...

I wonder if anyone knows the (optimal?) algorithm for longest recurring non-overlapping sub string. For example, in the string ABADZEDGBADEZ the longest recurring would be "BAD". Incidentally if...