- Double pointers
- Because there is no duplicates, we can let
low < high.
>>>has a higher predecender than
-. So we need a parentheses
const middle = low + ((high - low) >>> 1).
We are playing the Guess Game. The game is as follows:
I pick a number from
n. You have to guess which number I picked.
Every time you guess wrong, I will tell you whether the number I picked is higher or lower than your guess.
You call a pre-defined API
int guess(int num), which returns 3 possible results:
-1: The number I picked is lower than your guess (i.e. pick < num).
1: The number I picked is higher than your guess (i.e. pick > num).
0: The number I picked is equal to your guess (i.e. pick == num).
Return the number that I picked.
Input: n = 10, pick = 6