283. 移动零

class Solution {
public:
    void moveZeroes(vector<int>& nums) {
        size_t i = 0;
        for (size_t j = 0; j < nums.size(); ++j) {
            if (nums[j] != 0) {
                std::swap(nums[i], nums[j]);
                i += 1;
            }
        }
    }
};

impl Solution {
    pub fn move_zeroes(nums: &mut Vec<i32>) {
        let mut i = 0;
        for j in 0..nums.len() {
            if nums[j] != 0 {
                nums.swap(i, j);
                i += 1;
            }
        }
    }
}