283-Move-Zeroes.md

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:

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

Solution

class Solution {
     func moveZeroes(_ nums: inout [Int]) {
        var cur = 0
        for i in 0..<nums.count {
            if (nums[i] != 0) {
                nums[cur] = nums[i]
                cur += 1
            }
        }
        for i in cur..<nums.count {
            nums[i] = 0;
        }
        
    }
}