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1137. N-th Tribonacci Number 1137. N-th Tribonacci Number The Tribonacci sequence Tn is defined as follows: T0 = 0, T1 = 1, T2 = 1, and Tn+3 = Tn + Tn 阅读全文
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1128. Number of Equivalent Domino Pairs 1128. Number of Equivalent Domino Pairs Given a list of dominoes, dominoes[i] = [a, b] is equivalent to domino 阅读全文
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1108. Defanging an IP Address 1108. Defanging an IP Address Given a valid (IPv4) IP address, return a defanged version of that IP address. A defanged 阅读全文