Compilare: main.cpp: In function 'bool point_in_box(const POINT&, const POINT&, const POINT&)': main.cpp:85:12: warning: unused variable 'tx' [-Wunused-variable] double tx, ty; ^~ main.cpp:85:16: warning: unused variable 'ty' [-Wunused-variable] double tx, ty; ^~ main.cpp: In function 'int main()': main.cpp:117:12: warning: unused variable 'tx' [-Wunused-variable] int n, tx, ty, tx2, ty2, nr=0; ^~ main.cpp:117:16: warning: unused variable 'ty' [-Wunused-variable] int n, tx, ty, tx2, ty2, nr=0; ^~ main.cpp:117:20: warning: unused variable 'tx2' [-Wunused-variable] int n, tx, ty, tx2, ty2, nr=0; ^~~ main.cpp:117:25: warning: unused variable 'ty2' [-Wunused-variable] int n, tx, ty, tx2, ty2, nr=0; ^~~