Borderou de evaluare (job #76099)

Compilare: user.cpp: In function ‘long int numar(char*)’: user.cpp:16:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp: In function ‘int eval(char*)’: user.cpp:33:24: warning: unused variable ‘t’ [-Wunused-variable] user.cpp:34:20: warning: unused variable ‘y’ [-Wunused-variable] user.cpp:34:22: warning: unused variable ‘j’ [-Wunused-variable] user.cpp:53:1: warning: control reaches end of non-void function [-Wreturn-type]