碳酸钙的01妖精的博客

Square Destroyer Time Limit: 1000MS   Memory Limit: 10000K Total Submissions: 4577   Accepted: 2053 Description The left figure below shows a complete 3*3 grid made with 2*(3*4) (=24...

Christmas is coming and Bob wants to decorate his tree. The tree has N nodes. 1 is the root. He thinks a tree is beautiful if each node has exactly K child (immediate descendant) nodes (of course exce...