Necromancer
No Prime Sum
Cats and Dogs
Roads in HackerLand
Jeanie’s Route
Crab Graphs
Minimum Penalty Path
Clique
Codeforces Round 601 (Div. 1) B2. Send Boxes to Alice (Hard Version)
Codeforces Round 601 (Div. 1) B1. Send Boxes to Alice (Easy Version)