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问题:

解答:

main.cpp

<code>#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:

set关联容器无重复迭代器

2024年9月18日21:40:43