CSC231 Mystery C Program with signed numbers

---

Mystery Program

• The program below is incomplete.
• The two values that were used to initialize x and y have been removed.
• We do have the output of the program, though, corresponding to the original x and y values.

Question 1

Figure out the value of x and y in the original program.

Question 2

Find a way to fix the program so that it outputs the correct information

You may use this converter to help you out...

/* mystery.cpp
// D. T.
// mystery program
// To compile and run this program:
//
//     g++ mystery.cpp
//     a.out
//
// The output of the program is the following
//
// 32740
// -32756
//
// With what positive values were x and y initialized
// at the beginning of the program.  Explain why.
// (a short int contains 16 bits)
*/

#include <stdio.h>

int main() {

    short int x = ???? ;
    short int y = ???? ;

    x = x+y;
    printf( "%d\n", x );

    x = x+y;
    printf( "%d\n", x );

    return 0;
}

For reference, 2¹⁵ = 32768, and 2¹⁶ = 65536.

...