how to empty a std vector

To empty a std::vector in C++, you can use the clear() method. Here are the steps to empty a std::vector:

1. Declare and initialize the vector: Start by declaring and initializing a std::vector object. For example, you can declare a vector of integers as follows:

std::vector<int> myVector = {1, 2, 3, 4, 5};

1. Call the clear() method: To empty the vector, call the clear() method on the vector object. This method removes all elements from the vector, effectively making it empty. Here's how you can use clear():

myVector.clear();

After calling clear(), the vector will be empty. The clear() method removes all elements from the vector by resetting its size to 0.

That's it! Following these steps will empty a std::vector in C++.