【leetcode】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.

相当于设了两个指针，然后进行运算

/**
* @param {number[]} nums
* @return {void} Do not return anything, modify nums in-place instead.
*/
var moveZeroes = function(nums) {
var ll = nums.length;
var loc_zero=-1;
for(var i=0;i<ll;i++){
if(loc_zero===-1&&nums[i]===0){
loc_zero=i;
}
if(nums[i]!==0&&loc_zero!==-1){
nums[loc_zero]=nums[i];
nums[i]=0;
loc_zero++;
while(nums[loc_zero]!==0){
loc_zero++;
}
}
}
};