c++

how to add elements to vector in c++

In this, we talked about declaring a vector and how to store elements in a vector by using push_back function

#include <bits/stdc++.h>
using namespace std;

int main() {   
    cout<<"Enter Number of elements in your vector: ";
    int n;
    cin>>n;
    vector<int> v; // creating the vector (vector syntax)
    cout<<"Enter the "<<n<<" elements in the vector: ";
    for(int i=0;i<n;i++)
    {
        int temp;
        cin>>temp;
        v.push_back(temp); // push_back function is used to push elements to the back 
    }
    cout<<"The entered elements in vector are : ";
    for(int i=0;i<n;i++)
    {
        cout<<v[i]<<" ";
    }
    return 0;
}

Output

Enter Number of elements in your vector: 5
Enter the 5 elements in the vector: 1 2 3 4 5
The entered elements in the vector are: 1 2 3 4 5

how to run the code in c++ :

save the code with the file name as file_name.cpp and compile the code as g++ file_name.cpp and run it is as ./a.out

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