Archive 2017 04/09 2017 Google Code Jam Round QR 二分匹配數學貪心 2016 02/02 UVa 13005 - Blood groups dinicmaxflow二分匹配 2015 05/04 UVa 10615 - Rooks maxflow二分匹配 2014 12/30 UVa 12880 - Book Club dinicmaxflow二分匹配 11/18 UVa 12831 - Bob the Builder maxflow二分匹配最少路徑覆蓋