leetcode

0 class Solution {

1 public:

2 int minimumCardPickup(const vector<int> &cards) const {

3 static int pos[1000001];

4 int res = INT_MAX;

5

6 memset(pos, 0xFF, sizeof(pos));

7 for (int i = 0; i < size(cards); i++) {

8 if (pos[cards[i]] != -1) res = min(res, i - pos[cards[i]]);

9 pos[cards[i]] = i;

10 }

11

12 return res != INT_MAX ? res + 1 : -1;

13 }

14 };