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Given two arrays arr1
and arr2
, the elements of arr2
are distinct, and all elements in arr2
are also in arr1
.
Sort the elements of arr1
such that the relative ordering of items in arr1
are the same as in arr2
. Elements that don't appear in arr2
should be placed at the end of arr1
in ascending order.
Example 1:
Input: arr1 = [2,3,1,3,2,4,6,7,9,2,19], arr2 = [2,1,4,3,9,6]
Output: [2,2,2,1,4,3,3,9,6,7,19]
Constraints:
1 <= arr1.length, arr2.length <= 1000
0 <= arr1[i], arr2[i] <= 1000
- All the elements of
arr2
are distinct.
- Each
arr2[i]
is in arr1
.
[Sort]
[Array]
Hints
Hint 1
Using a hashmap, we can map the values of arr2 to their position in arr2.
Hint 2
After, we can use a custom sorting function.