剑指offer 面试57题

# -*- coding:utf-8 -*-
class Solution:
    def FindNumbersWithSum(self, array, tsum):
        # write code here
        if len(array)<2:
            return []
        found=False
        fst,lst=0,len(array)-1
        while fst<lst:
            sum_total=array[fst]+array[lst]
            if sum_total==tsum:
                found=True
                return [array[fst],array[lst]]
            elif sum_total<tsum:
                fst +=1
            else:
                lst -=1
        return []