Optum

6 questions tracked5 with solutions

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Frequency scoreSorted highest → lowest frequency✓ Our Solution = we have a detailed walkthrough

Showing 6 of 6 questions

EasyReverse Prefix of Word✓ Our Solution

100

Two PointersStringStack

MediumBank Account Summary

100

Database

MediumLongest Common Subsequence✓ Our Solution

StringDynamic Programming

MediumLongest Substring Without Repeating Characters✓ Our Solution

Hash TableStringSliding Window

MediumSort Colors✓ Our Solution

ArrayTwo PointersSorting

MediumMaximum Subarray✓ Our Solution

ArrayDivide and ConquerDynamic Programming