Question

What is the output of the following C++ code?

int alpha[5] = {2, 4, 6, 8, 10};
int j;
for (j = 4; j >= 0; j--)
cout << alpha[j] << " ";
cout << endl;

Answer 1

The C++ code outputs the array in reverse order: '10 8 6 4 2 ', followed by a newline.

Step-by-step explanation:

The output of the provided C++ code is a sequence of numbers printed in reverse order from how they appear in the array alpha. Specifically, the code initializes the array alpha with 5 integers: {2, 4, 6, 8, 10}. The for loop starts with the index j set to 4, which corresponds to the last element of the array, and decrements it by 1 each time the loop runs. With each iteration, the value of alpha[j] is outputted followed by a space.

Thus, the output will be:
10 8 6 4 2

After completing the loop, the code prints a newline character, ending the output on a new line.