HDU 5877 Weak Pair

09-11

HDU 5087 Revenge of LIS II

07-30

HDU 5734 Acperience

07-21

HDU 5723 Abandoned country

07-20

HDU 5355 Cake

04-15

HDU 5326 Work

03-23

POJ 1979 Red and Black

12-18

POJ 2386 Lake Counting

12-18

HDU 5339 Untitled

12-18

HDU 5167 Fibonacci

12-18