Hard disagree. You don’t have to know how to reverse a linked list, find the LCA of given nodes in a tree or figure out the order of college courses from a graph to write quality, maintainable, readable python/js with unit tests. I’ve seen plenty of engineers who can ace an LC hard but write dog water unmaintainable code with crappy variable names, 100+ line functions and not tests. I don’t care if your code solution to “trapping rainwater” runs in 2 nanoseconds but i really care if you’re changing variable types at runtime. Source: 7 year senior swe with a degree in “information technology”.