模仿ACwing上的查找最长不重复子串的写法,简易哈希 class Solution { public: int maxLength(vector<int>& arr) { if(arr.size() <= 1) return arr.size(); int used[100010] = {0}; int ans = 0; for(int i = 0,j = 0;i < arr.size();i++) { used[arr[i]...