Suppose you have a large range of consecutive integers in memory, each of which belongs to exactly one category. Two operations must be O(log n): moving a range from one category to another, and findi
I have an 3 NSMutableArray objects that contain CMTime objects. How can I iterate through all three of them in an efficient manner and find out if there are duplicate values in all three? For example,
I have a homework question as follows (note that I am not looking for exact answers, just looking for simple suggestions to move on).
Given a huge data set of integers, what would be the advantages of using map and reduce techniques over traditional sorting algorithms such as q开发者_开发问答uicksort and mergesort?Map/reduce is more
I have a small doubt here... If I know that a search element in a list ,say containing 32 elements sorted in order, is appearing within first four positions,
I have a dictionary which uses a 4-tuple as it\'s key. I need to find all the keys in the dictionary which partially match some other tuple. I have some code which does this but it\'s slow and needs o
My program have evaluate hundreds of millions of records. So the que开发者_运维百科stion of memory and performance are important.
tl;dr: I want to predict file copy completion. What are good methods given the start time and the current progress?
So I have large (around 4 gigs each) txt files in pairs and I need to create a 3rd file which would consist of the 2 files in shuffle mode. The following equation presents it best开发者_JAVA百科:
Instead of just the lowest set bit, I want to find the 开发者_如何学Cposition of the nth lowest set bit. (I\'m NOT talking about value on the nth bit position)
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