Greatest English Letter in Upper and Lower Case Problem

Greatest English Letter in Upper and Lower Case Problem — ExecCode Easy DSA Practice

Solve the Greatest English Letter in Upper and Lower Case problem on ExecCode. Free online easy DSA practice in Hashing. Write and run code in Java, C++, Python — no signup required to run.

Description Given a string of English letters s, return the greatestEnglish letter which occurs as both a lowercase and uppercase letter in s. The returned letter should be in uppercase. If no such letter exists, return an empty string. An English letter b is greater than anothe…

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