Viewing insights from Codeforces 1648C: Tyler and Strings that are similar (thus shared) with only this insight from Codeforces 1860A: Not a Substring: What are the extreme strings of length 2n? (most opposite) by Solarion
- When dealing with lexographically smaller strings, you can consider fixing the first i characters to be the same between the strings and then the (i + 1)th character can be different. by mathmastersd
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