Trapping rain water
Given an elevation map where each bar has width 1, return how many units of water it can trap after raining.
Implement
trap(height: list[int]) → intExamples
in
[[0,1,0,2,1,0,1,3,2,1,2,1]]out6What a strong answer looks like
State your approach and its time/space complexity out loud before you optimize. Handle the edge cases (empty input, duplicates, overflow), and say why you chose this over the brute force. Green tests are the floor, not the grade.
0:00 of about 35 min
solution.py
InputExpectedGot
[[0,1,0,2,1,0,1,3,2,1,2,1]]6not run yetsample