#12. Java Program To Find All Pairs From Integer Array Whose Sum Equal To A Number | Using HashSet|

This is the most commonly asked programming question in interviews. There are multiple ways in which we can solve this. In this video, we will write logic by using HashSet.

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[sriramkukkadapu]

couple of queries:
1) In This logic time complexity is good but space complexity is again problem, because if array has 1 lac elements container will have to store so many elements thats would be a memory issue
2) What if array contains 20 ? and target is also 20 ? what does it print ?

[sriramkukkadapu]

Pls share the program to print all possible sub arrays that form given sum