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Nearest Common Ancestors Time Limit: 1000MS Memory Limit: 10000K Total Submissions: 26852 Accepted: 13839 Description A rooted tree is a well-known da 阅读全文
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Black Box Time Limit: 1000MS Memory Limit: 10000K Total Submissions: 11150 Accepted: 4554 Description Our Black Box represents a primitive database. I 阅读全文
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Sequence Time Limit: 6000MS Memory Limit: 65536K Total Submissions: 9131 Accepted: 3037 Description Given m sequences, each contains n non-negative in 阅读全文