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EXTENDED LIGHTS OUT Time Limit: 1000MS Memory Limit: 10000K Total Submissions: 10354 Accepted: 6667 Description In an extended version of the game Lig 阅读全文
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Anniversary party Time Limit: 1000MS Memory Limit: 65536K Total Submissions: 8261 Accepted: 4742 Description There is going to be a party to celebrate 阅读全文
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QUESTION Given n integers {a1, a2, ..., an}, n ≤ 100, 000. Select some, s.t. they have the maximum xor sum. For random numbers like 19, 44, 9, 33, the 阅读全文