摘要：
Farmer John's cows keep escaping from his farm and causing mischief. To try and prevent them from leaving, he purchases a fancy combination lock to ke... 阅读全文
摘要：
The following cryptarithm is a multiplication problem that can be solved by substituting digits from a specified set of N digits into the positions ma... 阅读全文
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It was a dark and stormy night that ripped the roof and gates off the stalls that hold Farmer John's cows. Happily, many of the cows were on vacation,... 阅读全文
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The Merry Milk Makers company buys milk from farmers, packages it into attractive 1- and 2-Unit bottles, and then sells that milk to grocery stores so... 阅读全文
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A number that reads the same from right to left as when read from left to right is called a palindrome. The number 12321 is a palindrome; the number 7... 阅读全文
摘要：
Palindromes are numbers that read the same forwards as backwards. The number 12321 is a typical palindrome.Given a number base B (2 2 #include 3 #in... 阅读全文