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.

class Solution {
public:
    void moveZeroes(vector<int>& nums) {
        int noneZeroCnt = 0;
        for(int i=0;i<nums.size();i++){
            if(0 != nums[i]){
                nums[noneZeroCnt++] = nums[i];
            }
        }
        for(int i=noneZeroCnt;i<nums.size();i++) nums[i]=0;
    }
};