Borderou de evaluare (job #512601)

Eroare de compilare: user.cpp: In function 'int main()': user.cpp:17:10: error: 'n' was not declared in this scope user.cpp:18:9: error: 'i' was not declared in this scope user.cpp:19:14: error: 'x' was not declared in this scope user.cpp:19:19: error: 'y' was not declared in this scope user.cpp:20:15: error: expected primary-expression before ')' token user.cpp:21:5: error: expected primary-expression before '}' token user.cpp:21:5: error: expected ';' before '}' token