Data Structures Homework Help
Data structures homework help with Big-O proofs
DSA assignments grade on two things: working code and the written complexity argument. We deliver both — runnable Java, Python, or C++ plus a short proof of time and space complexity for every non-trivial operation.
Topics we handle
Arrays, ArrayList/Vector, linked lists (single, double, circular), stacks, queues, deques, hash tables (separate chaining and open addressing), BSTs, AVL trees, red-black trees, heaps, priority queues, tries, graphs (BFS, DFS, Dijkstra, Bellman-Ford, MST), and dynamic programming (1D, 2D, memoization, tabulation).
We follow the Sedgewick / CLRS / Goodrich conventions your textbook uses so the code reads like coursework, not a Stack Overflow answer.
What ships with every order
Runnable code in your required language, a written Big-O analysis (best / average / worst case) for time and space, a test harness with edge cases (empty input, single element, duplicates, large input), and a short README mapping each function to the rubric criterion.
Optional: Loom walkthrough for defending the solution in a viva or office hours.
Pricing and turnaround
Per-problem from $30, full problem sets from $90, project-level work quoted by milestone. 12-hour rush available.
Frequently asked questions
Will I get a written complexity analysis?
Yes — every non-trivial function ships with a time / space Big-O argument worded the way DSA professors expect. Amortized analysis included where the data structure requires it (dynamic array, splay tree, union-find with path compression).
Can you match my professor's pseudocode style?
Yes. Send a graded prior assignment or the textbook reference (CLRS, Sedgewick, Goodrich) and we mirror its conventions.
Do you handle competitive-programming-style problems?
Yes — Leetcode-style problems, contest sets, and university competitive courses (e.g. ACM ICPC training assignments). We deliver readable solutions, not one-letter-variable golf.
What about graph and DP problems specifically?
Yes — Dijkstra, Bellman-Ford, Floyd-Warshall, MST (Kruskal / Prim), max-flow, topological sort, and the standard DP suite (LCS, LIS, knapsack, edit distance, interval DP).
Will the code pass MOSS?
Solutions are written from scratch per order with varied structure and naming. We don't reuse across students.
How do I order DSA help?
Use the order link or go to https://tutorsgallery.org/orders/stud/new, pick "Programming," attach the problem set PDF and any starter files. A DSA-experienced developer responds within 10 minutes during US business hours.