Compilare: user.c: In function ‘main’: user.c:52: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result user.c:54: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result user.c:55: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result user.c:58: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result user.c: In function ‘cautare_bin3’: user.c:44: warning: control reaches end of non-void function user.c: In function ‘cautare_bin2’: user.c:30: warning: control reaches end of non-void function user.c: In function ‘cautare_bin’: user.c:17: warning: control reaches end of non-void function