How do I perform vector operations in C++?

How do I perform vector operations in C++?

In C++, you can use the Standard Template Library (STL) to perform vector operations. Would you like to see some examples?

Yes, please show me how to add two vectors.

To add two vectors, you can use a loop to iterate through the elements. Here's a simple example:

#include <iostream>
#include <vector>

int main() {
    std::vector<int> vec1 = {1, 2, 3};
    std::vector<int> vec2 = {4, 5, 6};
    std::vector<int> result;

    for (size_t i = 0; i < vec1.size(); ++i) {
        result.push_back(vec1[i] + vec2[i]);
    }

    for (int val : result) {
        std::cout << val << " ";
    }
    return 0;
}

This will output: 5 7 9.

What about subtracting vectors?

Subtracting vectors is similar to adding them. You just need to change the addition operator to a subtraction operator. Here's how you can do it:

for (size_t i = 0; i < vec1.size(); ++i) {
    result.push_back(vec1[i] - vec2[i]);
}

This will give you the difference between the two vectors.