其实可以用贪心,要不是数据太大==可是字典树更费空间==另:结构体可以有构造函数 In the year 8888, the Earth is ruled by the PPF Empire . As the population growing , PPF needs to find more land for the newborns . Finally , PPF decides to attack Kscinow who ruling the Mars . Here the problem comes! How can the soldiers reach the Mars ...