Given a sorted (in ascending order) integer array nums of
n elements and a target value, write a function to search target
in nums. If target exists, then return its index, otherwise return
-1.
Example 1:
Input:nums= [-1,0,3,5,9,12],target= 9 Output: 4 Explanation: 9 exists innumsand its index is 4
Example 2:
Input:nums= [-1,0,3,5,9,12],target= 2 Output: -1 Explanation: 2 does not exist innumsso return -1
Note:
nums are unique.n will be in the range [1, 10000].nums will be in the range [-9999,
9999].