【C++ Primer Plus习题】16.8

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问题:

解答:
main.cpp

#include <iostream>#include <set>#include <string>using namespace std;int main(){set<string> Mat_set, Pat_set, Guest_set;cout << "Enter Mat's friends(q to quit): ";string name;while (getline(cin,name)&&name!="q"){Mat_set.insert(name);cout << "Enter Mat's friends(q to quit): ";}cout << "\nMat's friends are: \n";for (auto pd = Mat_set.begin(); pd != Mat_set.end(); pd++){cout << *pd << " ";}cout << "\nEnter Pat's friends(q to quit): ";while (getline(cin, name) && name != "q"){Pat_set.insert(name);cout << "Enter Pat's friends(q to quit): ";}cout << "\nPat's friends are: \n";for (auto pd = Pat_set.begin(); pd != Pat_set.end(); pd++){cout << *pd << " ";}Guest_set.insert(Mat_set.begin(), Mat_set.end());Guest_set.insert(Pat_set.begin(), Pat_set.end());cout << "\n All friends are: \n";for (auto pd = Guest_set.begin(); pd != Guest_set.end(); pd++){cout << *pd << " ";}return 0;}

运行结果:

考查点:

2024年9月18日21:40:43