摘要：
Given a sequence 1,2,3,......N, your job is to calculate all the possible sub-sequences that the sum of the sub-sequence is M. InputInput contains mul 阅读全文
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摘要：
Given a sequence 1,2,3,......N, your job is to calculate all the possible sub-sequences that the sum of the sub-sequence is M. InputInput contains mul 阅读全文
摘要：
Limak is a little polar bear. He has n balls, the i-th ball has size ti. Limak wants to give one ball to each of his three friends. Giving gifts isn't 阅读全文
摘要：
“Point, point, life of student!” This is a ballad（歌谣）well known in colleges, and you must care about your score in this exam too. How many points can 阅读全文
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