Remove Duplicates from Sorted Array II

Your function should return length = 5, with the first five elements of nums being 1, 1, 2, 2 and 3. It doesn‘t matter what you leave beyond the new length.

方法与题目：Remove Duplicates from Sorted Array类似，同样是移除重复元素，但是允许元素最多重复两次，用一个变量记录重复次数，当不重复

时，变量清0，AC代码如下：

int removeDuplicates(int* nums, int numsSize) 
{
	//定义两个游标
	int i,j;
	//记数
	int index=0;
	if (numsSize==0)
	    return 0;
	i=0;
	for (j=1; j<numsSize; j++)
	{
		if (nums[i]==nums[j])
		{
			index++;
			if (index<2)
			{
				nums[++i]=nums[j];
			}
		}
		else
		{
			nums[++i]=nums[j];
			//计数清0
			index=0;
		}
	}
	return i+1;
}

Remove Duplicates from Sorted Array II

原文：http://blog.csdn.net/lsh_2013/article/details/45700773