A short C++ code with constant extra space


  • 0
    X
    class Solution 
    {
    public:
        int removeElement(vector<int>& nums, int val) 
        {
            int len = nums.size();
            int i = 0;
            while(i < len)
                nums[i] == val? (nums[i] = nums[--len]): ++i;
            return len;
        }
    };

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