LeetCode(283): Move Zeros

Move Zeros: Given an array nums, write a function to move all 0's to the end of it while maintaining the relative order of the non-zero elements.For example, given nums = [0, 1, 0, 3, 12], after calling your function, nums should be [1, 3, 12, 0, 0].

Note:

  1. You must do this in-place without making a copy of the array.
  2. Minimize the total number of operations.

题意:移除给定数组中的0元素,将0元素移动到数组的末尾,并且保持不是0元素的元素的顺序。

思路: 可以利用一个指针将不是0 的元素尽可能的往前排,然后将剩余的全部设置为0。

代码:

public void moveZeroes(int[] nums) {
        int cnt =0,pos = 0;
        int len = nums.length;

        for(int i =0;i<len;i++){
            //非0元素向前移
            if(nums[i]!=0){
                nums[pos] = nums[i];
                pos++;
            }
        }
        //其余元素设置为0
        for(;pos<len;pos++){
            nums[pos]= 0;
        }
    }
原文地址:https://www.cnblogs.com/Lewisr/p/5107761.html