?? chapter7-19.cpp
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//文件名:CHAPTER7-19.cpp
#include <deque>
#include <iostream>
#if _MSC_VER > 1020 // if VC++ version is > 4.2
using namespace std; // std c++ libs implemented in std
#endif
int main( )
{ using namespace std;
deque <int> c1;
c1.push_back( 10 );
c1.push_back( 20 );
c1.push_back( 30 );
cout << "The size of the deque is initially " << c1.size( ) << endl;
c1.clear( );
cout << "The size of the deque after clearing is " << c1.size( ) << endl;
return 0;
}
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