leetcode 1656. 设计有序流

Problem: 1656. 设计有序流英文题目的题意太模糊了描述不清楚中文题目描述清楚些模拟题按照题意即可Codeclass OrderedStream { public: vectorstring tr; int ptr 1, nn; OrderedStream(int n) { tr.resize(n1); nn n; } vectorstring insert(int idKey, string value) { tr[idKey] value; if(tr[ptr].size() 0) return {}; vectorstring ret; int i; for(i ptr; i nn; i) { if((int)tr[i].size() ! 0) ret.push_back(tr[i]); else break; } ptr i; return ret; } };