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0 votes
1 answer
2k views

Efficient way to find Xor of pairs with given target X in a range 0 to K

I came across a problem: given an array (can be huge 10^8) and an integer, K, find the count of pairs in the array whose Xor equal to each value in the range 0 to K. eg: Arr = 1 2 3 K = 2 since K=...
Kalpish Singhal's user avatar
1 vote
2 answers
2k views

How to Create a Parser that Operates in Reverse

I've got my answer to this in the comment of the one I checked. Which Algorithm Approach Should I Take to Generate Lambda Expressions in Java? but I don't exactly know where to look in terms of ...
nathan De Guia's user avatar
-1 votes
3 answers
8k views

Why are algorithms and data structures important? [duplicate]

It seems like a lot of university-level computer science programs and programmer job interviews focus heavily on algorithms and data structures. I'm curious as to why universities and employers put so ...
Ryan's user avatar
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