Codetail
Paths

Sorting & Binary Search

Intermediate

Binary search isn't just for sorted arrays — it's a framework for narrowing possibilities.

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Foundations
01
Binary Search
Easy5m
02
Search in Rotated Sorted Array
Medium15m
03
Find Minimum in Rotated Array
Medium12m
04
Kth Largest Element
Medium15m
Core
05
Search a 2D Matrix
Medium12m
06
Find Peak Element
Medium12m
07
Merge Intervals
Medium12m
08
Non-overlapping Intervals
Medium15m
Intermediate
09
Meeting Rooms II
Medium15m
10
Median of Two Sorted Arrays
Hard30m
11
Count of Smaller Numbers After Self
Hard30m