The Unordered Array Abstract Data Type¶
The structure of an unordered array, as described above, is a collection of items where each item holds a relative position with respect to the others. Some possible unordered array operations are given below.
int list[100]creates a new list that is a size of 100, and stores elements of integer data.front()accesses first element. Returns a reference to the first element in the array container.back()accesses last element. Returns a reference to the last element in the array container.empty()tests whether array is empty, and returns a boolean value showing whether the array is empty or not.size()returns size (the number of elements) in the array.fill(val)Sets val as the value for all the elements in the array object.
Vectors¶
Vectors are more similar to lists in Python than arrays, in a way that they have dynamic size. Some operations with vectors are given below:
#include <vector>;imports the vector library to be usedvector<int> integerList;declares integerList as a vector, and its elements to be a type of int.vector<string> stringList;declares stringList as a vector, and its elements to be a type of string.clear()deletes all the items in the vector.erase(pos)deletes the item at a defined position.insert(pos, elem)inserts the copy of elem into a pos position in the vector.size()returns the size (the number of items) of the vector.
More found at http://www.cplusplus.com/reference/vector/vector/