SYSTEM LEVEL: PROGRAMMING 1.Please solve the following datalab-style puzzle.

1. /** minusOne - return a value of -1

* Legal ops: ! ~ & ^ | + << >>

* Max ops: 2

*/

int minusOne(void) {

}

2. /**

* isPower2 - returns 1 if x is a power of 2, and 0 otherwise

* Examples: isPower2(5) = 0, isPower2(8) = 1, isPower2(0) = 0

* Note that no negative number is a power of 2.

* Legal ops: ! ~ & ^ | + << >>

* Max ops: 20

*/

int isPower2(int x) {

}