Compilare: user.cpp: In function ‘int main()’: user.cpp:11:10: warning: unused variable ‘f’ [-Wunused-variable] FILE*f=freopen("qtri.in","r",stdin); ^ user.cpp:12:10: warning: unused variable ‘g’ [-Wunused-variable] FILE*g=freopen("qtri.out","w",stdout); ^ user.cpp:13:19: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&Q); ^ user.cpp:16:66: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d%d%d%d%d%d%d",&x1,&y1,&x2,&y2,&x3,&y3,&Px,&Py); ^