#D5932. Correct Placement
Correct Placement
Correct Placement
Polycarp has invited n friends to celebrate the New Year. During the celebration, he decided to take a group photo of all his friends. Each friend can stand or lie on the side.
Each friend is characterized by two values h_i (their height) and w_i (their width). On the photo the i-th friend will occupy a rectangle h_i × w_i (if they are standing) or w_i × h_i (if they are lying on the side).
The j-th friend can be placed in front of the i-th friend on the photo if his rectangle is lower and narrower than the rectangle of the i-th friend. Formally, at least one of the following conditions must be fulfilled:
- h_j < h_i and w_j < w_i (both friends are standing or both are lying);
- w_j < h_i and h_j < w_i (one of the friends is standing and the other is lying).
For example, if n = 3, h=[3,5,3] and w=[4,4,3], then:
- the first friend can be placed in front of the second: w_1 < h_2 and h_1 < w_2 (one of the them is standing and the other one is lying);
- the third friend can be placed in front of the second: h_3 < h_2 and w_3 < w_2 (both friends are standing or both are lying).
In other cases, the person in the foreground will overlap the person in the background.
Help Polycarp for each i find any j, such that the j-th friend can be located in front of the i-th friend (i.e. at least one of the conditions above is fulfilled).
Please note that you do not need to find the arrangement of all people for a group photo. You just need to find for each friend i any other friend j who can be located in front of him. Think about it as you need to solve n separate independent subproblems.
Input
The first line contains one integer t (1 ≤ t ≤ 10^4) — the number of test cases. Then t test cases follow.
The first line of each test case contains one integer n (1 ≤ n ≤ 2 ⋅ 10^5) — the number of friends.
This is followed by n lines, each of which contains a description of the corresponding friend. Each friend is described by two integers h_i and w_i (1 ≤ h_i, w_i ≤ 10^9) — height and width of the i-th friend, respectively.
It is guaranteed that the sum of n over all test cases does not exceed 2 ⋅ 10^5.
Output
For each test case output n integers on a separate line, where the i-th number is the index of a friend that can be placed in front of the i-th. If there is no such friend, then output -1.
If there are several answers, output any.
Example
Input
4 3 3 4 5 4 3 3 3 1 3 2 2 3 1 4 2 2 3 1 6 3 5 4 4 2 2 2 3 1 1 4 4
Output
-1 3 -1 -1 -1 -1 -1 -1 2 2 3 3 -1 3
Note
The first test case is described in the statement.
In the third test case, the following answers are also correct:
- [-1, -1, 1, 2];
- [-1, -1, 1, 1];
- [-1, -1, 2, 1].
inputFormat
Input
The first line contains one integer t (1 ≤ t ≤ 10^4) — the number of test cases. Then t test cases follow.
The first line of each test case contains one integer n (1 ≤ n ≤ 2 ⋅ 10^5) — the number of friends.
This is followed by n lines, each of which contains a description of the corresponding friend. Each friend is described by two integers h_i and w_i (1 ≤ h_i, w_i ≤ 10^9) — height and width of the i-th friend, respectively.
It is guaranteed that the sum of n over all test cases does not exceed 2 ⋅ 10^5.
outputFormat
Output
For each test case output n integers on a separate line, where the i-th number is the index of a friend that can be placed in front of the i-th. If there is no such friend, then output -1.
If there are several answers, output any.
Example
Input
4 3 3 4 5 4 3 3 3 1 3 2 2 3 1 4 2 2 3 1 6 3 5 4 4 2 2 2 3 1 1 4 4
Output
-1 3 -1 -1 -1 -1 -1 -1 2 2 3 3 -1 3
Note
The first test case is described in the statement.
In the third test case, the following answers are also correct:
- [-1, -1, 1, 2];
- [-1, -1, 1, 1];
- [-1, -1, 2, 1].
样例
4
3
3 4
5 4
3 3
3
1 3
2 2
3 1
4
2 2
3 1
6 3
5 4
4
2 2
2 3
1 1
4 4
-1 3 -1
-1 -1 -1
-1 -1 2 2
3 3 -1 3
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