using namespace std;
int main()
{
string s = "123";
do
{
cout << s << endl;
}while(next_permutation(s.begin(),s.end()));
}
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#include<iostream>
#include<vector>
#include<algorithm>
using namespace std;
int main()
{
string s = "123";
do
{
cout << s << endl;
}while(next_permutation(s.begin(),s.end()));
}
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