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Write Python code to remove duplicates from a string.

Python/Codingmedium0.2 min readPremium
Frequency
Low
Asked at 1 company
Category
179
questions in Python/Coding
Difficulty Split
127E|24M|28H
in this category
Total Bank
1,863
across 7 categories
Asked at these companies
EY
Key Concepts Tested
joinpython
Expert AnswerPremium
39 wordsInterview-ready
**Preserve Order:** dict.fromkeys(s) (Py 3.7+ insertion order) or seen=set(); ''.join(c for c in s if c not in seen and not seen.add(c)). **Complexity:** O(n). set/dict for O(1) lookup. For large strings: generator avoids full materialization....
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