How Many Triangles?

Problem Number: 
10 979
Type of Problem: 
Problem Category: 
Input: 
Random Input
0
0
Critical Input: 
Random Input: 
8 0 0 5 0 6 0 10 0 6 0 5 0 0 5 5 0 0 0 0 5 0 6 0 10 0 7 0 5 0 6 6 0 6 0 0 1 0 2 0 4 0 0 0 0 2 0 2 2 0 -10 1 10 1 0 1 3 1 3 -100 -100 100 100 -100 -99 100 99 100 -100 -100 99
Problem Id: 
10979