Count Pairs With Given Sum | Array Interview
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0:05 Introduction
2:19 Brute Force Solution
3:21 Best Solution
Count pairs with given sum is one of the array interview question, I have explained both the brute force and the best way to solve it.
First approach can be using two different loops and just have the comparison of all the pairs possible.Second approach or the best approach is to use an unordered_map and keep the record of occurrences.
#array #dsa #datastructure #Algorithms
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