AGC018E Sightseeing Plan <组合数学>

10-02

ARC072E Alice in linear land < DP >

09-25

AGC021E Ball Eat Chameleons <组合数学>

09-23

ARC068F Solitaire <计数DP>

09-20

AGC026E Synchronized Subsequence <贪心+DP>

08-01