Compilare: user.cpp: In function ‘void citire()’: user.cpp:12: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result user.cpp:14: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result user.cpp: In function ‘int binary_search(int, int, int)’: user.cpp:21: warning: suggest explicit braces to avoid ambiguous ‘else’ user.cpp: In function ‘int zombie()’: user.cpp:40: warning: no return statement in function returning non-void