Description
Solutions
Find Max Number of Pairs
🤘 INTERN

Given an array, find the numbers with the same number of digits that can form the largest number of different pairs. For example, given the array {1, 9, 23, 30, 54, 103}, the possible pairs are {1, 9}, {23, 30}, {23, 54}, {30, 54}, and the output should be 4.

Example 1: 

Input:  nums = [1, 9, 23, 30, 54, 103]
Output: 4 
Explanation:

      
The possible pairs with the same number of digits are:
 

  • {1, 9}
    • 

  • {23, 30}
    • 

  • {23, 54}
    • 
      
There are a total of 4 different pairs, so the output is 4.
    Constraints:
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    Thumbnail 0
    Testcase
    Result
    Case 1

    input:

    output: