Important Notes by Igor Naverniouk (Abednego) and Frank Chu (fpmc)

• C++ I/O. Note: Be very careful when you use getline after using cin! The first getline may return an empty line (why?) 
• Another I/O tutorial by Yury Kholondyrev (warmingup).
• C++ STL (vectors, lists, sets, maps, pairs) and algorithms. Part 1, Part 2, and Part 3.
• Graph algorithms (BFS, colored DFS, shotest paths, union/find, spanning trees, Euler paths, flow and matching). Part 1, Part 2, Part 3, Part 4, and Part 5.
• Classroom DP and memoization (including bitset DP). Part 1, Part 2, and Part 3.
• Brute force tricks (Backtracking, branch and bound, iterative deepening, bidirectional search). Part 1, Part 2, and Part 3.

Source: http://www.cs.cornell.edu/~wdtseng/icpc/index.html