Word Matching Exercise

vector<typename>()

vector<typename>(size)

vector<typename>(size, value)

push_back(e)

size()

at(index)

empty()

clear()

	returns the size of the vector.
	creates an empty vector.
	creates a vector with the specified size.
	appends the specified element into the vector.
	returns the element at the specified index.
	creates a vector with specified size and default value.
	removes all the elements from the vector.
	returns true if the vector is empty.