Using vector in C++ Example sample Question with solution

C++ Programming using vector data structure example sample question with solution 

1.What will be the output of this code?

vector<int> v(5);

for (int k=0; k<v.size( ); k++)

  v[k]=k+1;  

vector<int> copy;

copy=v;

v[4]=44;

copy.push_back(6);

for (int k=0; k<copy.size( ); k++)

  cout<< copy[k]<<"  ";

1 2 3 4 5 6

         

2. What will be the output of this code?

vector<int> v(5);

for (int k=0; k<v.size( ); k++)

  v[k]=k+1;  

for (int k=0; k<v.size( )/2; k++) {

          int temp = v[k];

          v[k] = v[v.size( )-k-1];

          v[v.size( )-k-1] = temp;

}

for (int k=0; k<v.size( ); k++)

  cout<< v[k]<<"  ";

5 4 3 2 1