01-31
[USACO08DEC] Secret Message G
#字符串 #Trie
01-29
[USACO09OCT] Invasion of the Milkweed G
#搜索 #广度优先搜索 #洪水填充
01-28
四毛子算法(The Method of Four Russians)
#RMQ #笛卡尔树 #The Method of Four Russians
01-25
[USACO18OPEN] Out of Sorts G
#树状数组 #离散化
01-24
[USACO07MAR] Face The Right Way G
#差分 #贪心