对与另一个数组相关的数组进行排序。

If I have two arrays, x and y where y is the value of the tens of every element in x. Now, I want to sort y. But, the order of y will be different of x's. So, I can't tell after sorting which element in y was related to, for instance, x[0]. I want a "double sorting" may be. Your help is infinitely appreciated!If I have two arrays, x and y where y is the va