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Valid Pairs
EASY
22 mins 72 upvotes
Sorting
Arrays
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# Valid Pairs

Easy 0/40
Avg time to solve 22 mins
Success Rate 80 % Share 72 upvotes

## Problem Statement

#### For example:

``````If the given array is [2, 1, 5, 7] and K = 9 and M = 3. Then you need to return true because we can divide the array into two pairs, i.e (2, 1) and (5, 7) whose sums are 3 and 12, which when divided by 9 gives remainder 3, thus it is possible to divide the given array into pairs.
``````

#### Note:

``````Every element of the array should contribute to only one pair, i.e if the array is [3, 0, 0] and K = 2 and M = 1, then you need to return false, as element 3 will make a pair with any one of the 0.
``````
Detailed explanation ( Input/output format, Notes, Constraints, Images ) ##### Sample Input 1:
``````1
4
2 1 5 7
9 3
``````
##### Sample Output 1:
``````True
``````
##### Explanation for input 1:
``````Pairs will be {2,1} and {5,7} whose sums are 3 and 12 which will give remainder 3 when divided by 9.
``````
##### Sample Input 2:
``````1
5
6 6 3 0 0
9 3
``````
##### Sample Output 2:
``````False
``````
##### Explanation for Input 2:
``````As pairs would be {6, 6} and {3, 0}, but second 0 will not be able to make pair with any of the elements, thus it is not possible to make valid pairs.
``````  Auto Console