Christmas Trees - Christmas Special

A Christmas special about trees. The hardest problem may be very hard!


Problems

Problem Points AC Rate Users
Is it a Tree? 7p 33.2% 332
Tree Cutting 15p 32.0% 107
Mine and Tree 40p 17.7% 52

Comments


  • 11
    quantum  commented on Dec. 25, 2014, 4:24 p.m.