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Description Consider 2n rows of the seats in a bus. n rows of the seats on the left and n rows of the seats on the right. Each row can be filled by tw 阅读全文
摘要：
Description You are given an array of n elements, you must make it a co-prime array in as few moves as possible. In each move you can insert any posit 阅读全文
摘要：
Description Mike and some bears are playing a game just for fun. Mike is the judge. All bears except Mike are standing in an n × m grid, there's exact 阅读全文