26. Remove Duplicates from Sorted Array
2017-02-27 11:56
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简单题，关键在于细节处理。
class Solution {
public:
int removeDuplicates(vector<int>& nums) {
if(nums.size()==0)
return 0;
int preIndex=0;
int nowIndex=0;
while(nowIndex<nums.size())
{
if(nums[preIndex]>=nums[nowIndex])
nowIndex++;
else
{
if(nowIndex-preIndex!=1)
{
int temp=nums[preIndex+1];
nums[preIndex+1]=nums[nowIndex];
nums[nowIndex]=temp;
}
preIndex++;
nowIndex++;
}
}
return preIndex+1;
}
};
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