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With highways available, driving a car from Hangzhou to any other city is easy. But since the tank capacity of a car is limited, we have to find gas s 阅读全文
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Mooncake is a Chinese bakery product traditionally eaten during the Mid-Autumn Festival. Many types of fillings and crusts can be found in traditional 阅读全文
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给定数字0-9各若干个。你可以以任意顺序排列这些数字，但必须全部使用。目标是使得最后得到的数尽可能小（注意0不能做首位）。例如：给定两个0，两个1，三个5，一个8，我们得到的最小的数就是10015558。 现给定数字，请编写程序输出能够组成的最小的数。 输入格式： 每个输入包含1个测试用例。每个测试 阅读全文
摘要：
Eva loves to collect coins from all over the universe, including some other planets like Mars. One day she visited a universal shopping mall which cou 阅读全文