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E-pang Palace was built in Qin dynasty by Emperor Qin Shihuang in Xianyang, Shanxi Province. It was the largest palace ever built by human. It was so 阅读全文
posted @ 2017-07-31 20:22
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Dear Liao I never forget the moment I met with you. You carefully asked me: "I have a very difficult problem. Can you teach me?". I replied with a smi 阅读全文
posted @ 2017-07-31 20:15
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Function Fx,yFx,ysatisfies: For given integers N and M,calculate Fm,1Fm,1 modulo 1e9+7. InputThere is one integer T in the first line. The next T line 阅读全文
posted @ 2017-07-31 19:30
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sd0061, the legend of Beihang University ACM-ICPC Team, retired last year leaving a group of noobs. Noobs have no idea how to deal with mm coming cont 阅读全文
posted @ 2017-07-31 12:30
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Talented Mr.Tang has nn strings consisting of only lower case characters. He wants to charge them with Balala Power (he could change each character ra 阅读全文
posted @ 2017-07-31 12:14
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