`<stl.h>`

Include the special header <stl.h> to effectively include all the standard headers that constitute the Standard Template Library (STL) and hoist their names outside the std namespace. The header also defines macro names that redefine the STL container template classes to match their more traditional definitions.

#include <algorithm>
#include <deque>
#include <functional>
#include <iterator>
#include <list>
#include <map>
#include <memory>
#include <numeric>
#include <queue>
#include <set>
#include <stack>
#include <utility>
#include <vector>
using namespace std;

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