Need someone good expert in data structure and algorithm -- 4

Topics:
Introduction
- Introduction to algorithms
- Big-O/Omega/Theta notation, asymptotic analysis
Divide-and-Conquer
- Merge sort
- Master theorem
- Matrix multiplication
- Convex hull
- Half-planes intersection
Graph Algorithms
- DFS
- DAG, topological sort
- BFS
- Bellman-Ford algorithm
Greedy Algorithms