Question
#include <string>
#include <iostream>
using namespace std;
void string_permutation( string& orig, string& perm )
{
if (orig.empty())
{
cout<<perm<<endl;
return;
}
for (int i = 0; i < orig.size(); ++i)
{
string orig2 = orig;
orig2.erase(i, 1);
string perm2 = perm;
perm2 += orig.at(i);
string_permutation(orig2, perm2);
}
}
int main()
{
string orig = "ter";
string perm;
string_permutation(orig, perm);
return 0;
}a.
ter
b.
ert
c.
ret
d.
returns all the combination of ter
Posted under Object Oriented Programming Using C++
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Q. What is the output of this program?
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