Compilare: main.cpp: In function 'long long int DEI(punct, double, double, long long int, long long int)': main.cpp:21:11: warning: unused variable 'A' [-Wunused-variable] punct A = {O.x, O.y + dy}, ///A ^ main.cpp:22:11: warning: unused variable 'B' [-Wunused-variable] B = {O.x - dx, O.y}, ///M Q ^ main.cpp:23:11: warning: unused variable 'C' [-Wunused-variable] C = {O.x, O.y - dy}, ///B O D ^ main.cpp:24:11: warning: unused variable 'D' [-Wunused-variable] D = {O.x + dx, O.y}; ///N P ^ main.cpp:50:1: warning: control reaches end of non-void function [-Wreturn-type] } ^