program latintancok; {2015. maj. ang.}
const m=140;
type latinos=record
     tanc,fiu,lany:string;
     end;
var i,j,n,samba,k,l,f,maxk:integer;
    tancnev{,ref1,ref2}:string;
    van:boolean;
    vilma:array[1..20] of integer;
    a:array [1..m] of latinos;
    fiuindex,lanyindex: array [1..100] of integer;
    lany,fiu:array[1..100]of string[15];
    t:text;
begin
  Assign(t,'tancrend.txt');
  reset(t);
  i:=0;
  while not eof(t) do
  begin
    inc(i);
    readln(t,a[i].tanc);
    readln(t,a[i].lany);
    readln(t,a[i].fiu);
  end;
  close(t);
  n:=i;
  writeln('1. feladat');
  writeln('adatok beolvasasa..');
  writeln('2. feladat');
  writeln('az elso, es utolsokent bemutaott tanc neve rendre: ');
  writeln(a[1].tanc,',',a[n].tanc);
  writeln('3. feladat');
  samba:=0;
  for i:=1 to n do
    if a[i].tanc='samba' then inc(samba);
  writeln(samba,' par mutatott be sambat');
  writeln('4. feladat');
  writeln('Vilma a kovetkezo tancokban szerepelt: ');
  for i:=1 to n do
    if a[i].lany='Vilma' then writeln(a[i].tanc);
  writeln('5. feladat');
  van:=false;
  readln(tancnev);
  k:=0;
  for i:=1 to n do
    if (a[i].tanc=tancnev) and (a[i].lany='Vilma') then
    begin
      inc(k);
      vilma[k]:=i;
      van:=true;
    end;
  if van=false then writeln('Vilma nem tancolt ',tancnev,'-t');
  for i:=1 to k do
  writeln(a[vilma[i]].tanc,'-ban Vilma parja: ',a[vilma[i]].fiu);
  writeln('6. feladat');
  l:=1;
  f:=1;
  lany[l]:=a[1].lany;
  fiu[f]:=a[1].fiu;
  for i:=2 to n do
  begin
    k:=1;
    while (k<=l)and(lany[k]<>a[i].lany)do
      inc(k);

    if k>l then
    begin
      inc(l);
      lany[l]:=a[i].lany;
    end;

    k:=1;
    while (k<=f)and(fiu[k]<>a[i].fiu)do
      inc(k);

    if k>f then
    begin
      inc(f);
      fiu[f]:=a[i].fiu;
    end;

  end;

  write('Lanyok: ');
  for  i:=1 to l-1 do
    write(lany[i],', ') ;
  writeln(lany[l],'.');

  write('Fiuk: ');
  for  i:=1 to f-1 do
    write(fiu[i],', ') ;
  writeln(fiu[l],'.');

 {
  for i:=1 to n-1 do
  begin
    ref1:=a[i].lany;
    ref2:=a[i].fiu;
    for j:=i+1 to n do
    begin
      if a[j].lany=ref1 then a[j].lany:='';
      if a[j].fiu=ref2 then a[j].fiu:='';
    end;
  end;

  writeln('lanyok: ');

  for  i:=1 to n do
    if a[i].lany<>'' then
      write(a[i].lany,', ');
  }
  writeln('7. feladat');

  for i:=1 to n do
  begin
    j:=1;
    while a[i].fiu<>fiu[j] do
      inc(j);
    inc(fiuindex[j]);
    j:=1;
    while a[i].lany<>lany[j] do
      inc(j);
    inc(lanyindex[j]);
  end;

  {for i:=1 to f do
    write(fiuindex[i],' ');
  writeln;}
  maxk:=fiuindex[1];
  for k:=2 to f do
    if fiuindex[k]>maxk then maxk:=fiuindex[k];
  //writeln(maxk);
  write('A leggyakoribb fiunevek: ');
  for k:=1 to f do
    if fiuindex[k]=maxk then
      write(fiu[k],' ');
  writeln;

  {for i:=1 to l do
    write(lanyindex[i],' ');
  writeln;}
  maxk:=lanyindex[1];
  for k:=2 to l do
    if lanyindex[k]>maxk then maxk:=lanyindex[k];
  //writeln(maxk);
  write('A leggyakoribb lanynevek: ');
  for k:=1 to l do
    if lanyindex[k]=maxk then
      write(lany[k],' ');

readln;
end.