what's test2? my program has passed test 1 and 3 as i know
thx

me too
who know what is test2 ??? :)

try dis:

input:
4
10 10
10 5
10 0
-1 -1

ouput:
3

Try any test with ansewer 2. Example:
3
4 4
3 5
0 0

output:
2