How do I perform array operations in C++?

How do I perform array operations in C++?

In C++, you can perform various operations on arrays such as addition, subtraction, and searching. What specific operation are you interested in?

Can you show me how to add two arrays?

Sure! To add two arrays, you can loop through each element and sum them. Here's a simple example:

#include <iostream>
using namespace std;

int main() {
    int arr1[] = {1, 2, 3};
    int arr2[] = {4, 5, 6};
    int sum[3];

    for (int i = 0; i < 3; i++) {
        sum[i] = arr1[i] + arr2[i];
    }

    for (int i = 0; i < 3; i++) {
        cout << sum[i] << " ";
    }
    return 0;
}

This will output: 5 7 9.

What if the arrays have different sizes?

If the arrays have different sizes, you'll need to handle that by determining the smaller size and only adding elements up to that index. You can also decide how to handle the remaining elements of the larger array.

Can you give me an example of that?

Certainly! Here's an example that adds two arrays of different sizes:

#include <iostream>
using namespace std;

int main() {
    int arr1[] = {1, 2, 3, 4};
    int arr2[] = {5, 6};
    int size1 = sizeof(arr1) / sizeof(arr1[0]);
    int size2 = sizeof(arr2) / sizeof(arr2[0]);
    int maxSize = size1 > size2 ? size1 : size2;
    int sum[maxSize];

    for (int i = 0; i < maxSize; i++) {
        sum[i] = (i < size1 ? arr1[i] : 0) + (i < size2 ? arr2[i] : 0);
    }

    for (int i = 0; i < maxSize; i++) {
        cout << sum[i] << " ";
    }
    return 0;
}

This will output: 6 8 3 4.