剑指 Offer 21. 调整数组顺序使奇数位于偶数前面

https://leetcode-cn.com/problems/diao-zheng-shu-zu-shun-xu-shi-qi-shu-wei-yu-ou-shu-qian-mian-lcof/

/**
 * @param {number[]} nums
 * @return {number[]}
 */
var exchange = function(nums) {
    let i = 0;
    let j = nums.length-1;
    let temp;
    while(i<j){
        while(i<j&&(nums[i]%2==1)){
            i++;
        }
        while(i<j&&(nums[j]%2==0)){
            j--;
        }
            temp = nums[i];
            nums[i]=nums[j]
            nums[j]=temp
    }
    return nums;
};