writing integer input to vector container in C++

Question

likewise we do in array

for (.....)
  cin>>a[i];

how we can do this using vectors. i declared a vector of integers

vector<int> v;

now i need to take inputs from console and add append those in vector.i am using vector because i donot know the limit.

Answer 1

To insert integer to a vector from console and print everything out:

int input;
vector<int> v;
while(cin >> input){
 v.push_back(input);
}

for(int i = 0; i<v.size(); i++){
 cout<< v[i] <<endl;
}

And vector also provides you to print out the max size with:

cout << v.max_size()<<endl;