Zillow

3 questions tracked3 with solutions

🔍

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

Showing 3 of 3 questions

EasyValid Parentheses✓ Our Solution

100

StringStack

MediumNumber of Islands✓ Our Solution

ArrayDepth-First SearchBreadth-First SearchUnion Find+1

MediumFind First and Last Position of Element in Sorted Array✓ Our Solution

ArrayBinary Search