1 class Solution
 2 {
 3     public:
 4         vector<int> numMovesStones(int a, int b, int c)
 5         {
 6             vector<int> rnt(2,0);
 7             vector<int> v;
 8             v.push_back(a);
 9             v.push_back(b);
10             v.push_back(c);
11             sort(v.begin(),v.end());
12             if(v[0]==v[1]-1 && v[1]==v[2]-1)
13                 return rnt;
14             
15             rnt[1] = v[2]-v[1] + v[1]-v[0] -2;
16             if(v[0]==v[1]-1 || v[1]==v[2]-1 || v[0]==v[1]-2 || v[1]==v[2]-2)
17                 rnt[0] = 1;
18             else
19                 rnt[0] = 2;
20             return rnt;
21         }
22 };