Compilare: user.cpp: In function ‘void rezolvare()’: user.cpp:27:32: warning: suggest parentheses around ‘-’ inside ‘<<’ [-Wparentheses] fprintf (out,"%d\n",1<<prod-1); ^ user.cpp: In function ‘int main()’: user.cpp:32:24: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf (in,"%d",&t); ^ user.cpp:34:30: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] {fscanf (in,"%d%d",&x,&y); ^