I'm trying to solve FizzBuzz with a recursive, pure-function-style approach. My local test produces the expected output, but the online judge reports `TypeError: test is not a function`…
I'm still building confidence with data structures. Linked lists, stacks, queues, heaps, and recursion mostly make sense to me, but binary trees are where I get stuck—especially understanding…
I'm trying to submit a recursive, pure-function-style solution for FizzBuzz, but the online judge reports `TypeError: test is not a function` at `arr[i - 1] = test(i)`. The…
I'm still struggling with data structures. Linked lists, stacks, queues, heaps, and recursion generally make sense to me, but binary trees haven't clicked—especially the recursive approach. Could you…
I've been studying DSA in C++ for a while and have solved roughly 200 coding-platform problems, mostly Easy and Medium with a few Hards. I've also entered contests,…
I've been studying data structures and algorithms in C++ for a while and have solved roughly 200 practice problems, mostly easy and medium ones with a few hard…
I'm new to data structures and algorithms and I'm analyzing the running time of this recursive power function. When n is even, the recursive call uses n/2, giving…
I have trouble understanding what an algorithm is doing just by reading its code, especially when trying to estimate its time complexity. Are there any reliable techniques or…
I recently remembered taking introductory programming courses that used Scheme almost exclusively. Compared with languages like Java or Python, Scheme has very little conventional object-oriented syntax and often…
I recently remembered taking introductory programming courses where all the assignments were written in Scheme. Compared with languages such as Java or Python, Scheme has a very minimal…
I understand the basic factorial example, but I get lost when recursion appears in a larger project or problem-set exercise. I have trouble tracking what each call is…
I've become comfortable with recursion, and recursion with memoization makes sense because I can follow the calls and see what gets cached. Dynamic programming feels different: I'm expected…
I'm working on the maximum depth of a binary tree problem and wrote this TypeScript solution: function maxDepth(root: TreeNode | null): number { if (root == null) {…
I've been learning the basics of C and data structures and algorithms for about three weeks, but recursion still isn't clicking for me. I have trouble understanding what…
Hey everyone! I've been diving into Java and I'm ready to take my skills to the next level. I'm on the hunt for the best free course or…
Hey everyone! I've been diving into Java and I'm eager to up my game by moving past the basics. I'm specifically in search of the best free course…
I'm having a tough time implementing the divide step for the Merge Sort algorithm. I get the concept of "divide and conquer," but when it comes to coding…
I want to use the Get-ChildItem command with the -Recurse option to list all files, folders, and subfolders, but I also need to include hidden files in the…
I'm curious about the reasoning behind using an uppercase 'R' for the recursive option in the chown and chmod commands. Unlike chmod, which has a lowercase 'r' for…
I'm coming from a six-year background in imperative and object-oriented programming, and I want to expand my skills into functional programming. I've spent a little time trying to…