https://leetcode.com/problems/sort-colors/
var sortColors = function(nums) {
for(i=0; i<nums.length; i++){
for(k=0; k<(nums.length - i); k++){
if(nums[k] > nums[k+1]){
let temp = nums[k]
nums[k] = nums[k+1]
nums[k+1] = temp
}
}
}
};