#283. Move Zeroes
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:
- You must do this in-place without making a copy of the array.
- Minimize the total number of operations.
题解:维护两个下标,index和遍历数组的i
class Solution { public: void moveZeroes(vector<int>& nums) { int index=0; for(int i=0;i<nums.size();i++) { if(nums[i]!=0) { swap(nums[index],nums[i]); index++; } } } };