【Codeforces 559E】Gerald and Path
【Codeforces 576D】Flights for Regular Customers
【Codeforces 704D】Captain America
【Codeforces 590E】Birthday
【Codeforces 685C】Optimal Point
【Codeforces 566E】Restoring Map
【Codeforces 679E】Bear and Bad Powers of 42
【Codeforces 516D】Drazil and Morning Exercise
【Codeforces 576E】Painting Edges
【Codeforces 585E】Present for Vitalik the Philatelist
