Blockchain already being adopted by some big-name companies, such as Walmart, AIG, Siemens, Pfizer, and Unilever. For example, IBM's Food Trust uses blockchain to track food's journey before reaching its final destination.
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，更多细节参见搜狗输入法2026
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* 时间复杂度: O(n+k) k=max-min+1 空间复杂度: O(k) 稳定: ✓