How to declare vectors in C++ ?

Question

Hi, I'm trying to use a vector of strings in my code instead of an array of strings but apparently I miss some detail in the declaration of the vector. Using the following code, I get this error: ‘vector’ was not declared in this scope

// Try to implement a vector of string elements

#include<iostream>

using namespace std;

int main() {
    const int MAX_ITEMS = 10;
    vector<string> my_vector(MAX_ITEMS);
    return 0;
}

How should I correctly declare the vector?

Answer 1

You have to include the header:

#include <vector>
#include <string>

Answer 2

You need:

#include <vector>

Answer 3

You should add these includes:

#include <vector>
#include <string>