/in/foo.cc: In function 'int main()':
/in/foo.cc:21:69: warning: format '%s' expects argument of type 'char*', but argument 4 has type 'char (*)[20]' [-Wformat=]
   scanf("%d%s%s%d",&rec[i].id,rec[i].name,&rec[i].phone,&rec[i].secs);
                                                                     ^