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  • list详解

    #include <iostream>
    #include <vector>
    #include <list>
    
    std::list<std::string> getTotalEntrollment(std::vector<std::list<std::string>> courseStudent,
                                                std::list<std::string> dropStudent)
    {
        std::list<std::string> allStudent;
        for(auto &list : courseStudent)
        {
            allStudent.insert(std::end(allStudent),std::begin(list),std::end(list));
        }
        allStudent.sort();      //升序排列
        allStudent.unique();     //去除重复的std::stirng name
        for(auto &it : dropStudent)
        {
            allStudent.remove(it);  //去除在courseStudent中出现的dropStudent中的元素,注意这里不能用erase()方法
        }
        return allStudent;
    }
    int main()
    {
        std::list<std::string> list_1;
        std::list<std::string> list_2;
        std::list<std::string> list_3;
        std::vector<std::list<std::string>> vecList;
        std::list<std::string> resultList;
        std::list<std::string> dropList;
    
        list_1.push_back("abc");
        list_1.push_back("bcd");
        list_1.push_back("cde");
    
        list_2.push_back("dnd");
        list_2.push_back("skd");
        list_2.push_back("dnd");
    
        list_3.push_back("213");
        list_3.push_back("424");
        list_3.push_back("424");
    
        dropList.push_back("abc");
        dropList.push_back("dnd");
    
        vecList.push_back(list_1);
        vecList.push_back(list_2);
        vecList.push_back(list_3);
    
        resultList = getTotalEntrollment(vecList,dropList);
    
        for(auto it : resultList)
        {
            std::cout << it << std::endl;
        }
    
        return 0;
    }

    结果是:

    213
    424
    bcd
    cde
    skd

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  • 原文地址:https://www.cnblogs.com/boost/p/10386853.html
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