[剑指Offer] 62.数据流中的中位数

 1 class Solution {
 2 public:
 3     vector<int> vec;
 4     void Insert(int num)
 5     {
 6         vec.push_back(num);
 7     }
 8 
 9     double GetMedian()
10     { 
11         sort(vec.begin(),vec.end());
12         int size = vec.size();
13         if(size % 2 == 0){
14             return (double)(vec[size/2] + vec[size/2 - 1]) / 2;
15         }else{
16             return (double)vec[size/2];
17         }
18     }
19 
20 };