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def can_be_equal_with_one_swap(s1, s2):

    # Step 1: Check if lengths are the same

    if len(s1) != len(s2):

        return False

    # Step 2: If strings are already identical

    if s1 == s2:

        return True

    # Step 3: Find mismatching positions

    mismatches = []

    for i in range(len(s1)):

        if s1[i] != s2[i]:

            mismatches.append(i)

    # Step 4: Check the mismatch condition

    if len(mismatches) == 2:

        i, j = mismatches

        # Check if swapping the mismatched characters makes the strings identical

        return s1[i] == s2[j] and s1[j] == s2[i]

    # If there are not exactly two mismatches, return False

    return False

I am pretty passionate about Reddit. In a world where media is biased and polarized, Reddit threads gives me a sense of how local communities view the world. It helps me get grounded in reality of what different cadres of people are thinking by browsing different communities. Reddit is very engaging, as in, you can comment and instantly receive feedback. While there is a lot of "internet hate" and "misinformation" in Reddit communities and threads as well, looking at a wider spectrum of communities within Reddit, especially the differing ones, helps you form a less polarized and biased opinion. I prefer contributing by asking open-ended questions and if I have an opinion, posting it respectfully as a question. I also respond to scientific minded questions that I have qualifications to answer. By selectively responding and answering questions with some due diligence, I keep the communities I am a part of thriving and truth-based.

If it's a subscription based product,  After usage of the product I check how many users continue with the subscriotion after 7 days, 15days, 1 month, 3 months and 6 month. The % of users who continue to have the subscriotion after the above time periods are the retained users

For non subscription products, I can check weekly or monthly retention by finding % of users who come back to product the week or month after using