Eroare de compilare in evaluator: user.cpp:1:19: error: cstdio.h: No such file or directory user.cpp:41:2: warning: no newline at end of file user.cpp:4: error: expected constructor, destructor, or type conversion before '*' token user.cpp: In function 'int main()': user.cpp:28: error: lvalue required as left operand of assignment user.cpp:28: error: lvalue required as increment operand user.cpp:29: error: 'K' was not declared in this scope user.cpp:37: error: 'g' was not declared in this scope user.cpp:37: error: 'fprintf' was not declared in this scope user.cpp:38: error: 'g' was not declared in this scope user.cpp:38: error: 'fprintf' was not declared in this scope