Eroare de compilare in evaluator: user.cpp: In function 'char* ad(char*, char*)': user.cpp:7: warning: comparison between signed and unsigned integer expressions user.cpp:9: warning: address of local variable 'c' returned user.cpp: In function 'char* in(int, char*)': user.cpp:28: error: 'strrev' was not declared in this scope user.cpp:22: warning: address of local variable 'f' returned user.cpp: In function 'char* stir(long int, long int)': user.cpp:34: warning: address of local variable 's' returned user.cpp:34: warning: address of local variable 's' returned user.cpp:34: warning: address of local variable 's' returned user.cpp: In function 'int main()': user.cpp:55: error: 'strrev' was not declared in this scope