#include <iostream>
using std::cout;
using std::endl;
#include <string>
using std::string;
int main()
{
string string1( "cat" );
string string2;
string string3;
string2 = string1;
string3.assign( string1 );
cout << "string1: " << string1 << "\nstring2: " << string2
<< "\nstring3: " << string3 << "\n\n";
string2[ 0 ] = string3[ 2 ] = 'r';
cout << "string1: " << string1 << "\nstring2: " << string2 << "\nstring3: ";
return 0;
}
/*
string1: cat
string2: cat
string3: cat
string1: cat
string2: rat
string3:
*/
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