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DSA Problem Sheets
Data Structures & Algorithms
📋 70 Problems● Easy 33● Medium 32● Hard 5
☕ Java🐍 Python⚙️ C++🟡 JavaScript
Showing 8 of 70 problems · Medium · String
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Title
Difficulty
31
Check If a String Contains a Permutation of Another
Medium
56
Reverse the Order of Words in a Sentence
Medium
58
Compress a String Using Run-Length Encoding
Medium
60
Convert a Roman Numeral to an Integer
Medium
64
Group Strings That Are Anagrams of Each Other
Medium
64
Group Strings That Are Anagrams of Each Other
Medium
66
Sort Characters of a String by Frequency
Medium
66
Sort Characters of a String by Frequency
Medium