Binary Search pattern

Search Insert Position

Given a sorted array of distinct integers and a target, return the index of the target. If it is not present, return the index where it would be inserted to keep the array sorted. Must run in O(log n). Watch it run step by step, then write your own pseudocode and get it checked by AI.

  • LeetCode 35
  • Easy
  • 2 approaches

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Binary SearchLeetCode 35

Easy

From the first idea to the best one

  1. 01 Brute force · linear scan O(n)O(1) space
  2. 02 Optimized · binary search O(log n)O(1) space
Each approach plays step by step, with its time and space.

What you will learn

  • How to read Search Insert Position and spot the binary search pattern in it
  • Brute force · linear scan: O(n) time, O(1) space
  • Optimized · binary search: O(log n) time, O(1) space
  • The pseudocode for each approach, its line lit as the animation runs
  • Practice: write your own pseudocode and get it checked

More Binary Search

See Search Insert Position run, step by step

Sign in and this page opens on the animation, with all 11 Binary Search problems beside it.

DSA comes with the all labs plan and every ChaiCode batch.