Compilare: user.cpp: In function ‘void read()’: user.cpp:16:28: warning: format ‘%s’ expects argument of type ‘char*’, but argument 3 has type ‘char (*)[1002]’ [-Wformat=] fscanf(f,"%s",&a[i]); ^ user.cpp:13:30: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d %d\n",&n,&m); ^ user.cpp:16:29: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%s",&a[i]); ^