Please any one tell me what is vector in c++ ???

Question

I want know the vector meaning and the use of it.
And note that I am a beginner.(sorry for any spelling mistakes)

Answer 1

https://www.sololearn.com/learn/261/?ref=app

Answer 2

Vector is a type of container. The SoloLearn course won’t cover this.

It is similar to an array, but you don’t have to worry about a maximum number of elements.

For example:

#include <iostream>
#include <vector>

using namespace std;

int main() {
//this makes a vector of integers named vec. It is currently empty.
vector<int> vec;

//this adds 3 items to it: 3, 8, 479.
vec.push_back(3);
vec.push_back(8);
vec.push_back(479);

//you can access vectors just like arrays.
vec[1] = 56;
cout << vec[0] << endl;
cout << vec[1] << endl;
cout << vec[2] << endl;
}

Outputs:
3
56
479

Answer 3

its a dynamic array, it can adjust its size