0
thing №
property1
property2
1
5
6
2
7
9
3
6
10
4
1
7
5
2
5
6
3
4
7
4
3
8
8
2
9
10
1
10
9
8
lets say we have some 10 things. these things have property1 and property2, and we rank those things by property1 and property2 in in decreasing order respectively. now question:...
