Tree Time Limit: 5000MS Memory Limit: 131072K Total Submissions: 6131 Accepted: 1682 Description You are given a tree with N nodes. The tree's nodes are numbered 1 through N and its edges are numbered 1 through N − 1. Each edge is associated with…
Apple Tree Time Limit: 2000MS Memory Limit: 65536K Total Submissions: 21566 Accepted: 6548 Description There is an apple tree outside of kaka's house. Every autumn, a lot of apples will grow in the tree. Kaka likes apple very much, so he has been…
Mondriaan's Dream Time Limit: 3000MS Memory Limit: 65536K Total Submissions: 13519 Accepted: 7876 Description Squares and rectangles fascinated the famous Dutch painter Piet Mondriaan. One night, after producing the drawings in his 'toilet series…
Word Puzzles Time Limit: 5000MS Memory Limit: 65536K Total Submissions: 10244 Accepted: 3864 Special Judge Description Word puzzles are usually simple and very entertaining for all ages. They are so entertaining that Pizza-Hut company started u…
Feed the dogs Time Limit: 6000MS Memory Limit: 65536K Total Submissions: 16860 Accepted: 5273 Description Wind loves pretty dogs very much, and she has n pet dogs. So Jiajia has to feed the dogs every day for Wind. Jiajia loves Wind, but not the…
Rebuilding Roads Time Limit: 1000MS Memory Limit: 30000K Total Submissions: 9957 Accepted: 4537 Description The cows have reconstructed Farmer John's farm, with its N barns (1 <= N <= 150, number 1..N) after the terrible earthquake last May. The…
Long Long Message Time Limit: 4000MS Memory Limit: 131072K Total Submissions: 23696 Accepted: 9705 Case Time Limit: 1000MS Description The little cat is majoring in physics in the capital of Byterland. A piece of sad news comes to him these days:…
