Eroare de compilare in evaluator: user.cpp:193:2: warning: no newline at end of file user.cpp:9: error: expected initializer before 'long' user.cpp: In function 'int main()': user.cpp:17: error: 'n' was not declared in this scope user.cpp:22: error: 'a' was not declared in this scope user.cpp:22: error: 'b' was not declared in this scope user.cpp:22: error: 'c' was not declared in this scope user.cpp:22: error: 'd' was not declared in this scope user.cpp:65: warning: comparison between signed and unsigned integer expressions user.cpp:144: warning: comparison between signed and unsigned integer expressions