Remove Duplicates from Sorted Array II

Remove Duplicates from Sorted Array II

Follow up for "Remove Duplicates":
What if duplicates are allowed at most twice?

For example,
Given sorted array A = [1,1,1,2,2,3],

Your function should return length = 5, and A is now [1,1,2,2,3].

 

class Solution {public:    int removeDuplicates(int a[], int n) {       if(n==0) return 0;       int idx = 0, count = 0 , i = 0;       for ( i = 0; i < n ; i++) {           if (i >0 && a[i] ==a[i-1]) {               count++;               if(count >= 3){                   continue;               }           }           else {               count = 1;           }           a[idx++] = a[i];       }       return idx;    }};