#include <iostream>
#include <cassert>
#include <string>
#include <deque>
#include <algorithm> // for reverse
using namespace std;
int main()
{
string s("abcdef");
deque<char> deque1(s.begin(), s.end());
deque<char>::iterator i;
for (i = deque1.begin(); i != deque1.end(); ++i)
cout << *i;
cout << "\n\n\n";
reverse(deque1.begin(), deque1.end());
for (i = deque1.begin(); i != deque1.end(); ++i)
cout << *i;
return 0;
}
/*
abcdef
fedcba
*/
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