C Programming: Understanding sizeof Operator with Pre-Increment

The output of this program will be 'i=5 j=4'.

In the statement j = sizeof(++i + ++i), we first evaluate the expression ++i + ++i.

Since i is initially 3, the first ++i increments i to 4, and the second ++i increments i to 5.

Then, ++i + ++i is evaluated as 4 + 5, which is 9.

The sizeof operator then returns the size of the expression, which in this case is 4 (the size of an integer).

Finally, the value of j is assigned as 4, and the values of i and j are printed.