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Velox 的 OrderBy 算子实现主要逻辑是通过 SortBuffer::addInput 把 Vector 里面列存数据转换成行存储到 RowContainer 里面,然后再使用排序算法对 RowContainer 里面行存的数据进行排序,最后通过 RowContainer#extractColumn 把排序后的数据转成 Vector 列存数据,这个列存数据就是我们要的排序结果。主要过程如下: 欢迎...
思路: :1.用vector<vector<int>>输出二位数组 2.迭代。 代码: 1vector<vector<int>>ret;23voidbuildVector(TreeNode *root,intdepth)4{5if(root == NULL)return;6if(ret.size() == depth)7ret.push_back(vector<int>());//depth的设置很巧妙89ret[depth].push_back(root->val);10buildVector(roo...
1.4 OrderBy::getOutput() RowVectorPtrOrderBy::getOutput(){// 不满足输出条件,直接返回if(finished_||!noMoreInput_||numRows_==numRowsReturned_){returnnullptr;}// 准备output的空间prepareOutput();if(spiller_!=nullptr){// Spill相关,后面论述getOutputWithSpill();}else{// 根据排序后的returningRow...
std::vector<int> data; std::atomic<int> flag ={0}; void thread_1() { data.push_back(42); // #1 flag.store(1,std::memory_order_release); //#2 } void thread_2() { int expected=1; // #3 while(!flag.compare_exchange_strong(expected,2,std::memory_order_acq_rel))//#4 ...
#include <iostream> #include <atomic> #include <thread> #include <vector> std::vector<int> data; std::atomic<int> flag(0); void Producer() { data.push_back(42); flag.store(1, std::memory_order_release); return; } void Broker() { int expected = 1; while (!flag.compare_exchange...
A computing system is specifically adapted for the performance of vector operations. A computing system takes two vector streams and orders the elements of those vector streams into a single ordered vector stream. Each vector stream is received in a different receiver register with each vector being...
int qaWordVectorDimension;//问答模型词嵌入维度,该数字越大速度越慢,越能支持更复杂的问答 int maxWordLength;//用户输入语句最大长度 int maxAnswerLength;//Ai最大回答长度 int keyWordNerveDeep;//关键词敏感嗅探颗粒度大小 2,加载词向量模型后,检查wordEmbedding.getWordList().size(),新加载的数据要与老模...
First-Order Sample-and-Hold of a Sine Wave Ports Input expand all Port_1—Input signal scalar | vector | matrix Output expand all Port_1—First-order sample-and-hold scalar | vector | matrix Parameters expand all Sample time—Time interval between samples ...
#include <vector> #include <list> #include <future> #include <atomic> #include <assert.h> #include "ScopeThread.h" #include "template.h" #include "parallel_accumulate.h" #include "sequential_quick_sort.h" std::atomic<bool> x, y; ...