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[codeforces 55]D. Beautiful numbers 试题描述 Volodya is an odd boy and his taste is strange as well. It seems to him that a positive integer number is bea 阅读全文
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[HDU3709]Balanced Number 试题描述 A balanced number is a non-negative integer that can be balanced if a pivot is placed at some digit. More specifically, 阅读全文
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[TimusOJ1057]Amount of Degrees 试题描述 Create a code to determine the amount of integers, lying in the set [X;Y] and being a sum of exactly K different i 阅读全文
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[HDU3555]Bomb 试题描述 The counter-terrorists found a time bomb in the dust. But this time the terrorists improve on the time bomb. The number sequence of 阅读全文
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[POJ3096]Surprising Strings 试题描述 The D-pairs of a string of letters are the ordered pairs of letters that are distance D from each other. A string is 阅读全文
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[POJ1068]Parencodings 试题描述 Let S = s1 s2...s2n be a well-formed string of parentheses. S can be encoded in two different ways: q By an integer sequenc 阅读全文