Remove Duplicates from Sorted Array II

public class Solution {
    public int removeDuplicates(int[] A) {
        // Start typing your Java solution below
        // DO NOT write main() function
        int len = A.length;
        if(len==0)return 0;
        if(len==1)return A[0];
        int[] b = new int[len];
        int count = 0;
        int now = -1;
        int t = 0;
        for(int i = 0; i < len;i++){
            if(now == A[i]){
                if(count>=2)continue;
                else{
                    b[t++]=now;count++;
                }
            }
            else{
                b[t++]=A[i];
                count=1;
                now = A[i];
            }
        }
        for(int i = 0;i<t;i++)
            A[i]=b[i];
        return t;
    }
}