电子投票系统是理解数据结构核心原理的经典教学载体,它将线性表、哈希表、链表、树等抽象概念映射到真实业务场景中。其本质是构建一个高效、一致、可验证的内存数据模型——通过哈希表实现O(1)候选人查重,用布尔数组保障用户状态的低开销校验,借实时缓存与双向索引平衡读写性能。这 ...
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