#!usr/bin/env python
#encoding:utf-8
'''''
__Author__:沂水寒城
功能：找到兩個有序列表的中位數(shù)
若列表總長度為奇數(shù)則直接返回中間下標(biāo)的值
否則返回前一個值，如長度為6則返回下標(biāo)為2處的值
'''
import random
def random_nums_genetor(max_value=1000, total=100):
  '''''
  生成隨機數(shù)
  '''
  num_list=[]
  for i in range(total):
    num_list.append(random.randint(1,max_value))
  return num_list
def find_two_list_mid_num(num_list1,num_list2):
  '''''
  找到兩個有序列表的中位數(shù)
  '''
  length1=len(num_list1)
  length2=len(num_list2)
  total=length1+length2
  if total%2==0:
    half=total/2-1
  else:
    half=total/2
  res_list=[]
  while len(num_list1) and len(num_list2):
    if num_list1[0]<num_list2[0]:
      res_list.append(num_list1.pop(0))
    else:
      res_list.append(num_list2.pop(0))
  if len(num_list1):
    res_list+=num_list1
  elif len(num_list2):
    res_list+=num_list2
  #print res_list
  print res_list[half]
  return res_list
if __name__ == '__main__':
  print "腳本之家測試結(jié)果："
  num_list1=[1,2,5,7,12,45,67,100]
  num_list2=[11,34,77,90]
  res_list=find_two_list_mid_num(num_list1,num_list2)
  print res_list[5]
  print '--------------------------------------------------------'
  num_list1=random_nums_genetor(max_value=1000, total=10)
  num_list2=random_nums_genetor(max_value=100, total=7)
  res_list=find_two_list_mid_num(num_list1, num_list2)
  print res_list[8]