leetcode 27. 移除元素 时间击败100.00%内存击败84.67%

Posted 2022-12-08 towerbird

 1  public int removeElement(int[] nums, int val) 
 2         int last = nums.length - 1;
 3         for (int i = 0; i <= last && last >= 0; i++) 
 4             while (last >= 0 && nums[last] == val) last--;
 5             if (last >= 0 && i < last && nums[i] == val) 
 6                 nums[i] = nums[last];
 7                 last--;
 8             
 9         
10         return last + 1;
11