Eroare de compilare: user.cpp:6: error: variable or field ‘suma’ declared void user.cpp:6: error: ‘x1’ was not declared in this scope user.cpp:6: error: ‘y1’ was not declared in this scope user.cpp:6: error: ‘x2’ was not declared in this scope user.cpp:6: error: ‘y2’ was not declared in this scope user.cpp: In function ‘int main()’: user.cpp:25: error: ‘suma’ was not declared in this scope user.cpp:31: error: ‘x1’ was not declared in this scope user.cpp:32: error: ‘y1’ was not declared in this scope user.cpp:37: error: expected primary-expression before ‘)’ token user.cpp:38: error: expected primary-expression before ‘}’ token user.cpp:38: error: expected ‘;’ before ‘}’ token