Beyond the Void / 圖論
有向圖強連通分量的Tarjan算法
NOI 1997 解題報告
POI 2001 Wandering flea trainers 跳舞蠅的教練
有向樹與樹的括號序列最小表示法
POI 1998 追趕 Chase
USACO MAR07 Silver Cow Traffic 奶牛交通
USACO NOV07 Silver Cow Hurdles 奶牛跨欄
USACO DEC07 Silver Building Roads 建造路徑
USACO JAN08 Silver Telephone Lines 架設電話線
USACO JAN08 Silver Cow Contest 奶牛的比賽
USACO 4.3.3 Buy Street Race 街道賽跑 race3