1 #include "000库函数.h" 2  3  4 //自解1： 5 class Solution { 6 public: 7     int removeElement(vector
     
      & nums, int val) { 8         if (nums.size() == 0)return 0; 9         int j = 0;10         for (int i = 0; i < nums.size(); ++i)11             if (nums[i] != val)12                 nums[j++] = nums[i];13         return j;14     }15 };16 17 /*****************************博客解******************/18 class Solution {19 public:20     int removeElement(vector
      
       & nums, int val) {21         int res = 0;22         for (int i = 0; i < nums.size(); ++i) {23             if (nums[i] != val) nums[res++] = nums[i];24         }25         return res;26     }27 };28 29 void T027() {30     vector
       
        nums = { 0,1,2,3,0,4,2 };31     Solution s;32     cout << s.removeElement(nums,2) << endl;33     for (int i = 0; i < s.removeElement(nums, 2); ++i)34         cout << nums[i] << '\t';35     cout << endl;36 }