A C++ vector is an array-like container, but unlike arrays, its size can change dynamically. In this video, we will learn Why we use vectors in C++, What is a vector in C++ along with its syntax. After that, we will understand member functions of C++ vector with the help of some hands-on examples. 1. Why we use vectors in C++ 2.​ What is a vector in C++ 3. Syntax 4. Member functions of C++ 5. Modifiers 6.​ Iterators 7.​ Capacity ✅What is C++ Programming? C++ is an enhanced and extended version of C programming language, developed by Bjarne Stroustrup in 1979 as part of his Ph.D. project. Bjarne developed what he called ‘C with Classes’ (later renamed C++) because he felt limited by the existing programming languages that were not ideal for large scale projects. He used C to build what he wanted because C was already a general-purpose language that was efficient and fast in its operations. ✅C++ Career Prospects: With just C++ programming expertise, you will have excellent job opportunities, salaries, and career prospects. However, for a career based on programming languages such as Java and Python (which are in more demand than C++) or for careers based on front-end, back-end, and full-stack development, you will go a lot further with C++ expertise. Furthermore, in development domains such as software testing, you are expected to know C++. To know about C++ programming, visit: https://www.simplilearn.com/c-plus-plus-programming-for-beginners-article?utm_campaign=C++Vectors&utm_medium=Description&utm_source=Slideshare

2. Why we use vectors in C++?
What is vector in C++?
Syntax
Member function of vectors
Modifiers
Iterators
What’s in it for you?
Capacity

3. Why we use vectors in C++ ?
Vectors are used in C++ because unlike arrays it’s size can be
changed during runtime
It has some extra inbuilt features like push_back() , size() , empty() etc

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5. What is vector in C++ ?
A vector is array like container, just like array it uses contiguous memory
locations. But unlike array it’s size can change dynamically
It is not necessary to mention the size of vector while declaring it

6. Syntax
1) vector<int>v1
2) vector<string>v2
3) vector<float>v3
Here, v1 ,v2, v3 are variable names

7. Member functions of vectors
1. Modifiers
2. Iterators
3. Capacity

8. Modifiers
push_back()
pop_back()
insert()
erase()
swap()
assign()
clear()
It adds element at the end
It deletes the last element
Inserts new elements before specified position
Removes the elements from the container from the
specified range
It swaps the content between vectors
It assigns new value to the vector
It is used to remove all elements

9. Iterators
begin()
end()
It returns the iterator to the beginning
It returns the iterator to the end

10. Capacity
size()
max_size()
It returns number of elements in the vector
It returns maximum size of vector
capacity()
resize() It changes the size
Returns size of allocated storage capacity
empty() It tests whether the vector is empty