C - Almost Sorted
F - Spices
E - Average and Median
D - Concatenate Subsequences
Codeforces Round #333 (Div. 1) A. The Two Routes
Codeforces Round #334 (Div. 1) A. Alternative Thinking
Codeforces Round #335 (Div. 1) A. Sorting Railway Cars
Codeforces Round #335 (Div. 2) B. Testing Robots
Codeforces Round #336 (Div. 1) A. Chain Reaction
Chef and Big Soccer