摘要：
Mike has a sequence A = [a1, a2, ..., an] of length n. He considers the sequence B = [b1, b2, ..., bn] beautiful if the gcd of all its elements is big 阅读全文
摘要：
D. Minimum number of steps time limit per test 1 second time limit per test memory limit per test 256 megabytes memory limit per test input standard i 阅读全文