class Solution {
public:
int removeDuplicates(vector& nums) {
int k=0;
for(auto x:nums)
if(k<2||(nums[k-1]!=x||nums[k-2]!=x))
nums[k++]=x;
return k;
}
};
class Solution {
public:
int removeDuplicates(vector& nums) {
int k=0;
for(auto x:nums)
if(k<2||(nums[k-1]!=x||nums[k-2]!=x))
nums[k++]=x;
return k;
}
};
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