摘要：
Problem DescriptionI like playing game with my friend, although sometimes looks pretty naive. Today I invent a new game called LianLianKan. The game is about playing on a number stack. Now we have a number stack, and we should link and pop the same element pairs from top to bottom. Each time, you ca 阅读全文
摘要：
Problem DescriptionAlice and Bob's game never ends. Today, they introduce a new game. In this game, both of them have N different rectangular cards respectively. Alice wants to use his cards to cover Bob's. The card A can cover the card B if the height of A is not smaller than B and the widt 阅读全文