Pairs with Positive Negative values
Easy Accuracy: 31.06% Submissions: 1149 Points: 2

Given an array of distinct integers, print all the pairs having positive value and negative value of a number that exists in the array.

NOTE: If there is no such pair in the array , return empty array.
 

Example 1:

Input:
n = 6
a[] = {1, -3, 2, 3, 6, -1}
Output:
-1 1 -3 3 

 

Example 2:

Input:
n = 8
a[] = {4, 8, 9, -4, 1, -1, -8, -9}
Output:
-1 1 -4 4 -8 8 -9 9



Your Task:  
You don't need to read input or print anything. Your task is to complete the function PosNegPair() which takes the array a[] and its size n as inputs and returns all the required pairs in the increasing order of their absolute numbers.

 

Expected Time Complexity: O(nLog(n))
Expected Auxiliary Space: O(n)

 

Constraints:
1<=n<=105
-105<=a[i]<=105

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Pairs with Positive Negative values

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