{ GA_PRIEM.PAS              Copyright (c) TrSek alias Zdeno Sekerak }
{ Zostavte program pre nacitanie N trojic lubovolnych cisel A,B,C,  }
{ z ktorych vypocitajte aritm. a geometr. priemer.                  }
{ Vysledok pre jednotlive trojice tlacte v tvare tabulky            }
{                                                                   }
{ Datum:04.02.2004                             http://www.trsek.com }

program ga_priemer;
uses crt;
var a:array[1..100] of real;
    b:array[1..100] of real;
    c:array[1..100] of real;
    i:integer;
    n:integer;
    apriem:real;

begin
     ClrScr;
     WriteLn('Program vypocita geometricky a aritmeticky priemer A,B,C');
     Write('Zadaj pocet trojic. Maximalne 100. N=');
     ReadLn(n);

     { nacita n-krat cisla a,b,c do pola }
     for i:=1 to n do
     begin
          WriteLn;
          Write('Zadaj A[',i,']='); ReadLn(a[i]);
          Write('Zadaj B[',i,']='); ReadLn(b[i]);
          Write('Zadaj C[',i,']='); ReadLn(c[i]);
     end;

     WriteLn('Vysledna tabulka je');
     WriteLn;
     WriteLn('Por|      A |      B |      C | Aritmeticky | Geometricky |');
     WriteLn('------------------------------------------------------------');

     { vypocita a zobrazi priemery }
     for i:=1 to n do
     begin
          apriem := (a[i] + b[i] + c[i])/3;
          Write( i:3,'|', a[i]:8:3, '|', b[i]:8:3, '|', c[i]:8:3, '|', apriem:13:3, '|' );

          { geometricky pre zaporne cisla sa neda }
          if((a[i]<0) or (b[i]<0) or (c[i]<0)) Then
              WriteLn('      neda sa')
          else
          { geometricky priemer je 3tia odmocnina z a*b*c }
              WriteLn( Exp( ln(a[i]*b[i]*c[i])/3 ):13:3);
     end;

     WriteLn('------------------------------------------------------------');
     ReadLn;
end.