Epic Systems

12 questions tracked11 with solutions

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

Showing 12 of 12 questions

MediumAdditive Number✓ Our Solution

100

StringBacktracking

MediumLetter Combinations of a Phone Number✓ Our Solution

Hash TableStringBacktracking

EasySelf Dividing Numbers✓ Our Solution

Math

MediumSpiral Matrix✓ Our Solution

ArrayMatrixSimulation

MediumStepping Numbers

MathBacktrackingBreadth-First Search

EasyValid Parentheses✓ Our Solution

StringStack

MediumWord Search✓ Our Solution

ArrayStringBacktrackingDepth-First Search+1

MediumAngle Between Hands of a Clock✓ Our Solution

Math

ArrayHash Table

MediumLongest Substring Without Repeating Characters✓ Our Solution

Hash TableStringSliding Window

MediumBulls and Cows✓ Our Solution

Hash TableStringCounting

MediumPalindromic Substrings✓ Our Solution

Two PointersStringDynamic Programming