C++ 哈希表,易理解 class Solution { public: /** * lru design * @param operators int整型vector<vector<>> the ops * @param k int整型 the k * @return int整型vector */ struct Node { int key,val; Node *left, *right; Node(int _key, int _val):key(_key),val(_val),left(NULL),right(NULL){} }*L,*R; int n; unord...