题解 | #二分查找-I#

#coding:utf-8
#
# 代码中的类名、方法名、参数名已经指定，请勿修改，直接返回方法规定的值即可
#
# 
# @param nums int整型一维数组 
# @param target int整型 
# @return int整型
#
class Solution:
    def search(self , nums , target ):
        # write code here

        #init
        if nums == None:
            return -1
        if len(nums) == 0:
            return -1
        left = 0
        right = len(nums) - 1

        #process
        while left <= right:
            mid = left + (right - left) // 2
            if nums[mid] == target:
                print ("Found: ", mid, nums[mid])
                return mid
            elif nums[mid] > target:
                right = mid - 1
            else:
                left = mid + 1

        return -1