Attention: In this version, the number of operations that can be performed, has been increased to twice.
\n\nYou are given an array nums consisting of positive integers.
We call two integers x and y almost equal if both integers can become equal after performing the following operation at most twice:
x or y and swap any two digits within the chosen number.Return the number of indices i and j in nums where i < j such that nums[i] and nums[j] are almost equal.
Note that it is allowed for an integer to have leading zeros after performing an operation.
\n\n\n
Example 1:
\n\nInput: nums = [1023,2310,2130,213]
\n\nOutput: 4
\n\nExplanation:
\n\nThe almost equal pairs of elements are:
\n\nExample 2:
\n\nInput: nums = [1,10,100]
\n\nOutput: 3
\n\nExplanation:
\n\nThe almost equal pairs of elements are:
\n\n\n
Constraints:
\n\n2 <= nums.length <= 50001 <= nums[i] < 107Compiled with clang 17 using the latest C++ 23 standard, and libstdc++ provided by GCC 13.
Your code is compiled with level two optimization (-O2). AddressSanitizer is also enabled to help detect out-of-bounds and use-after-free bugs.
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