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Given a sequence of N numbers. Find different numbers A and B in the sequence so that the sum of A and B equals to K.

Second line: N positive integers (<= 1000000).

5 12 2 4 7 3 9

3 9

Info

Provider NOIOPEN

Origin 简单英文题

Code NOIOPJENGLISH15

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Date 08/15/2021 18:56:22

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