While reading through other solutions, I noticed some people use character frequency counts as the hashmap key instead of sorting the string. Since that avoids sorting, it should perform better for ...
MaximumAreaofaPieceofCakeAfterHorizontalandVerticalCuts.cpp MissingNumber.cpp PermutationII.cpp Running_sum_of_1d_array.cpp TargetIndicisAfterSortinfArray.cpp ThirdMxNum.cpp ...
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What I understood: HashMap uses hashing internally Keys are used to calculate bucket location Searching becomes faster because Java does not check every element one by one Duplicate keys replace old ...