LeetCode 27 Remove Element (Remove Element)

LeetCode 27 Remove Element (Remove Element)
Translation

Given an array and a value, delete all instances with this value and return a new length. The order of elements can be changed, regardless of the final length of the array.

Original

Given an array and a value, remove all instances of that value in place and return the new length.The order of elements can be changed. It doesn't matter what you leave beyond the new length.

Code

class Solution {public:    int removeElement(vector
  
   & nums, int val) {        if (nums.begin() == nums.end()) return 0;        vector
   
    ::iterator itor;        for (itor = nums.begin(); itor + 1 != nums.end(); )        {            if (*(itor + 1) == val) {                nums.erase(itor + 1);            }            else {                itor++;            }        }        itor = nums.begin();        if (*itor == val) {            nums.erase(itor);            return nums.size();        }        return nums.size();    }};