convert vector into array c++

To convert a vector into an array in C++, you can follow these steps:

1. Declare a vector: Start by declaring a vector and populating it with elements. For example:

#include <vector>
using namespace std;

vector<int> vec = {1, 2, 3, 4, 5};

1. Declare an array: Next, declare an array with a size equal to the vector's size. For example:

int arr[vec.size()];

1. Copy elements from the vector to the array: Use the std::copy function from the <algorithm> header to copy elements from the vector to the array. For example:

#include <algorithm>

copy(vec.begin(), vec.end(), arr);

1. Access elements in the array: You can now access the elements in the array using array indexing. For example:

for (int i = 0; i < vec.size(); i++) {
  cout << arr[i] << " ";
}

This will output: 1 2 3 4 5, which are the elements from the vector copied into the array.

That's it! You have successfully converted a vector into an array in C++.