Beautiful Pairs

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    1->Initialize a Counter:

    ->The code starts with a counter (count) set to 0 to keep track of matches.

    2->Single Item Check:

    ->If A has only one item, it immediately returns 0, meaning it skips the rest of the process since there’s only one item to compare.

    3->Count Matches:

    ->For each item in A, the code checks if it also exists in B. ->If a match is found, it adds 1 to count and removes that item from B so it doesn’t get counted again.

    4->Adjust the Final Count:

    ->After counting, the code checks :

    =>If count is less than the length of A, meaning not every item in A had a match, it returns count + 1 (adding a little "bonus"). =>If all items in A matched items in B (count == len(A)), it returns len(A) - 1 (reducing the count by one). If count is less than the length of A, meaning not every item in A had a match, it returns count + 1 (adding a little "bonus"). If all items in A matched items in B (count == len(A)), it returns len(A) - 1 (reducing the count by one).