摘要：
D. Biridian Foresttime limit per test2 secondsmemory limit per test256 megabytesinputstandard inputoutputstandard outputYou're a mikemon breeder currently in the middle of your journey to become a mikemon master. Your current obstacle is go through the infamous Biridian Forest.The forestThe Biri 阅读全文
摘要：
B. Road Constructiontime limit per test2 secondsmemory limit per test256 megabytesinputstandard inputoutputstandard outputA country hasncities. Initially, there is no road in the country. One day, the king decides to construct some roads connecting pairs of cities. Roads can be traversed either way. 阅读全文
摘要：
A. Cakeminatortime limit per test1 secondmemory limit per test256 megabytesinputstandard inputoutputstandard outputYou are given a rectangular cake, represented as anr × cgrid. Each cell either has an evil strawberry, or is empty. For example, a3 × 4cake may look as follows:The cakeminator 阅读全文