给定n个字符串,在这n个字符串中有相同的字符串,不同的字符串只有num个。
要求首先输入字符串的个数n,然后输入n个字符串,将这n个字符串中num个不同的字符串按照字典序排序,并输出每个字符串在这n个字符串中所占的比例,精确到4位小数。
例如:若输入:29RedAlderAshAspenBasswoodAshBeechYellowBirchAshCherryCottonwoodAshCypressRedElmGumHackberryWhiteOakHickoryPecanHardMapleWhiteOakSoftMapleRedOakRedOakWhiteOakPoplanSassafrasSycamoreBlackWalnutWillow则输出:Ash13.793119Aspen3.4483Basswood3.4483Beech3.4483BlackWalnut3.4483Cherry3.4483Cottonwood3.4483Cypress3.4483Gum3.4483Hackberry3.4483HardMaple3.4483Hickory3.4483Pecan3.4483Poplan3.4483RedAlder3.4483RedElm3.4483RedOak6.8966Sassafras3.4483SoftMaple3.4483Sycamore3.4483WhiteOak10.3448Willow3.4483YellowBirch3.4483
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