bisect_left and bisect_right
Find insertion points in a sorted list.
Search Without the Boilerplate
Python's bisect module gives you a tested binary search for sorted lists. No hand-written loop means no off-by-one bugs to debug.
import bisectInsertion Points, Not Booleans
Instead of true or false, bisect returns an index where a value would be inserted to keep the list sorted. That index is the real power.
a = [1, 3, 3, 3, 7]All lessons in this course
- Classic Binary Search Without Bugs
- bisect_left and bisect_right
- First True: Predicate Binary Search
- Binary Search on the Answer