# vector declaration : vector definition « Vector « C++

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 C++ » Vector » vector definition Screenshots
vector declaration
 ```     #include  using std::cout; using std::cin; using std::endl; #include  using std::setw; #include  using std::vector; int main() {    vector< int > integers1( 7 ); // 7-element vector< int >    vector< int > integers2( 10 ); // 10-element vector< int >    size_t i;        cout << integers1.size() << endl;    for ( i = 0; i < integers1.size(); i++ ){       cout << integers1[ i ];    }    cout << integers2.size() << endl;    for ( i = 0; i < integers2.size(); i++ ){       cout << integers2[ i ];    }    for ( size_t i = 0; i < integers1.size(); i++ )       integers1[ i ] = i;    for ( size_t i = 0; i < integers2.size(); i++ )       integers2[ i ] = i;    for ( i = 0; i < integers1.size(); i++ ){       cout << integers1[ i ];    }    for ( i = 0; i < integers2.size(); i++ ){       cout << integers2[ i ];    }    return 0; } /*  7 000000010 000000000001234560123456789  */                ```
Related examples in the same category
 1 vector's copy constructor 2 Storing Specific Values in an Existing Container
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