Cod sursa(job #604019)

Utilizator ctlin04UAIC.VlasCatalin ctlin04 Data 19 iulie 2011 18:59:36
Problema Sortare prin comparare Scor 40
Compilator fpc Status done
Runda Arhiva educationala Marime 0.79 kb
Program sortare_rapida;
var a:array[1..10000] of longint;
    i,n:longint;
    b1,b2: array[1..1 shl 17] of char;
    fi,fo:text;
procedure qsort(l,r:longint);
 var k,i,j,y:longint;
 begin
  i:=l; j:=r;
   k:=a[(l+r) div 2];
 repeat
  while a[i]<k do inc(I);
   while a[j]>k do dec(j);
 if i<=j then
              begin
               y:=a[i]; 
                a[i]:=a[j]; 
                  a[j]:=y;
                     inc(i); dec(j);
              end;
 until i>=j;
  if l<j then qsort(l,j);
   if i<r then qsort(i,r);
 end;
begin
assign(fi,'algsort.in');
 assign(fo,'algsort.out');
reset(fi);
 rewrite(fo);
settextbuf(fi,b1);
settextbuf(fo,b2);
readln(fi,n);
 for i:=1 to n do read(fi,a[i]);
  qsort(1,n);
 for i:=1 to n do write(fo,a[i],' ');
  close(fo);
end.