#C13026. Pair Sum Checker

    ID: 42519 Type: Default 1000ms 256MiB

Pair Sum Checker

Pair Sum Checker

You are given multiple test cases. In each test case, you are provided with a list of integers and a target integer \(T\). Your task is to determine whether there exists a pair of distinct numbers in the list such that their sum equals \(T\). The solution should process each test case and output True if such a pair exists, or False otherwise.

Example:

Input:
1
3
1 2 3
5

Output: True

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In the example above, since 2 + 3 = 5, the answer is True.

inputFormat

The first line of input contains an integer \(T\) representing the number of test cases. The description of each test case is as follows:

  1. An integer \(N\) representing the number of elements in the list.
  2. A line containing \(N\) space-separated integers.
  3. An integer \(T\) which is the target sum.

Note: For cases where \(N = 0\), the line with numbers will be empty.

outputFormat

For each test case, output a single line containing either True if there exists a pair of numbers in the list whose sum is equal to the target, or False otherwise.

## sample
5
3
1 2 3
5
3
1 2 3
6
0

10
2
4 4
8
2
10 20
30
True

False False True True

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