Compilare: user.cpp: In function ‘int intersectie(segm, segm)’: user.cpp:20:14: warning: variable ‘c1’ set but not used [-Wunused-but-set-variable] int a1,b1,c1,a2,b2,c2; ^ user.cpp:20:23: warning: variable ‘c2’ set but not used [-Wunused-but-set-variable] int a1,b1,c1,a2,b2,c2; ^ user.cpp:31:14: warning: unused variable ‘f1’ [-Wunused-variable] long long f1, f2; ^ user.cpp:31:19: warning: unused variable ‘f2’ [-Wunused-variable] long long f1, f2; ^