Solution: Finding the Array Sum

#include <iostream>
template<typename T>
T arrSum(const T* arr, int arrSize)
{
    T result = 0;
    for (int i = 0; i < arrSize; i++) {
        result += arr[i];
    }
    return result;
}
int main()
{
    // Array declarations
    int intArray[] = {1, 2, 3, 4, 5};
    float floatArray[] = {1.5, 2.5, 3.5, 4.5, 5.5};
    double doubleArray[] = {4.75, 5.91234, 10.101010, 0.0001, 9.151515};
    int intArraySize, floatArraySize, doubleArraySize = 0;
    // Finding the size of each array
    intArraySize = sizeof(doubleArray) / sizeof(doubleArray[0]);
    floatArraySize = sizeof(doubleArray) / sizeof(doubleArray[0]);
    doubleArraySize = sizeof(doubleArray) / sizeof(doubleArray[0]);
    // Printing results to the console
    std::cout << "Sum of integers: " << arrSum(intArray, intArraySize) << std::endl;
    std::cout << "Sum of floating-point numbers: " << arrSum(floatArray, floatArraySize) << std::endl;
    std::cout << "Sum of double numbers: " << arrSum(doubleArray, doubleArraySize) << std::endl;
}