Compilare: user.cpp: In function ‘int main()’: user.cpp:32:27: warning: format ‘%s’ expects argument of type ‘char*’, but argument 4 has type ‘char (*)[13]’ [-Wformat=] fscanf(f,"%d %s",&n,&o); ^ user.cpp:37:30: warning: format ‘%s’ expects argument of type ‘char*’, but argument 3 has type ‘char (*)[6]’ [-Wformat=] fscanf(f,"%s",&x[i].s); ^ user.cpp:28:11: warning: unused variable ‘j’ [-Wunused-variable] int i,j,k; ^ user.cpp:31:22: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d",&p); ^ user.cpp:32:28: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d %s",&n,&o); ^ user.cpp:37:31: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%s",&x[i].s); ^