cf/mirror

Triangles

CF
13D2600· international gm2s64 MB⌨ stdin/stdout
#dp#geometry

Examples

Sample 1of 2
Input
4 1
0 0
10 0
10 10
5 4
2 1
Output
2
Sample 2of 2
Input
5 5
5 10
6 1
8 6
-6 -7
7 -1
5 -1
10 -4
-10 -8
-10 5
-2 -8
Output
7
13D.cpp
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Ln 11·137 BGNU C++20 (64)