0027 Remove Element

• Simple
• C++

问题概述

解题思路

class Solution
{
public:
    int removeElement(std::vector<int>& nums, int val) //引用传递
    {
        for (int i = 0; i < nums.size(); i++)
        {
            if (nums[i] == val)
            {
                for (int j = i + 1; j < nums.size(); j++)
                {
                    nums[i] = nums[j];
                }
                nums.pop_back();
                i--;
            }

        }
        return nums.size();
    }
};