LeetCode Remove Duplicates from Sorted Array II

class Solution {
public:
    int removeDuplicates(int A[], int n) {
        if (n <= 2) return n;
        int wpos = 1;
        int dups = 0;
        int cur, last = A[0];
        
        for (int i=1; i<n; i++) {
            cur = A[i];
            dups = (cur == last) ? dups + 1 : 0;
            if (dups <= 1) {
                A[wpos++] = cur;
            }
            last = cur;
        }
        return wpos;
    }
};

意识流写代码，又有段日子不写了，感觉坚持一发！