To find the sum of the elements of an array of integers, simply loop through the array and add each element to a running total.
About this solution: This is a good solution that uses a for loop to iterate through the array and add each element to the sum variable. The for loop is the most efficient way to iterate through an array. The sum variable is initialized to 0 and then incremented by the value of each element in the array. The sum variable is then returned.