【数组】面试题 16.06. 最小差

 1 class Solution {
 2 public:
 3     int smallestDifference(vector<int>& a, vector<int>& b) 
 4     {
 5         sort(a.begin(),a.end());
 6         sort(b.begin(),b.end());
 7 
 8         long ret = INT_MAX;
 9 
10         for(int i = 0, j = 0; i < a.size() && j < b.size();)
11         {
12             ret = min(ret,abs(long(a[i])-long(b[j])));
13             if(a[i] < b[j])
14             {
15                 i++;
16             }
17             else
18             {
19                 j++;
20             }
21         }
22         return ret;
23     }
24 };