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2.Given an array of integers, you have to find all pairs of elements in this array such that whose sum must be equal to a given number. For example, if {4, 5, 7, 11, 9, 13, 8, 12} is an array and 20 is the given number, then you have to find all pairs of elements in this array whose sum must be 20. In this example, (9, 11), (7, 13) and (8, 12) are such pairs whose sum is 20.
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Junior Java Developer

Interviewed at Synergy Technology Services

3.6★
Sep 9, 2019

2.Given an array of integers, you have to find all pairs of elements in this array such that whose sum must be equal to a given number. For example, if {4, 5, 7, 11, 9, 13, 8, 12} is an array and 20 is the given number, then you have to find all pairs of elements in this array whose sum must be 20. In this example, (9, 11), (7, 13) and (8, 12) are such pairs whose sum is 20.

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