Problem Statement
Which function finds the leftmost index to insert a value into a sorted list?
Explanation
bisect_left returns the first index where the value can be inserted to keep order. It is the usual tool for lower bound queries.
bisect_right returns the insertion point after any existing equal items.
Code Solution
SolutionRead Only
from bisect import bisect_left idx = bisect_left([1,2,2,3], 2) # 1
