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Cod sursa(job #932235)
var
v:array[1..500000] of longint;
bufin, bufout:array[1.. 1 shl 17] of char;
n, i, aux:longint;
f, g:text;
procedure swap (var fx:longint; var fy:longint);
begin
aux:=fx; fx:=fy; fy:=aux;
end;
procedure qsort (st, dr:longint);
var s, d, m:longint;
begin
s:=st; d:=dr;
m:=(st+dr) div 2;
swap(v[m], v[st]);
while s<d do
begin
while (v[d]>=aux) and (s<d) do dec (d);
v[s]:=v[d];
while (v[s]<=aux) and (s<d) do inc (s);
v[d]:=v[s];
end;
v[s]:=aux;
if s-st>1 then qsort (st, s-1);
if dr-s>1 then qsort (s+1, dr);
end;
begin
assign (f, 'algsort.in'); settextbuf (f, bufin); reset (f);
assign (g, 'algsort.out'); settextbuf (g, bufout); rewrite (g);
randomize;
read (f, n);
for i:= 1 to n do read (f, v[i]);
qsort (1, n);
for i:= 1 to n do write (g, v[i], ' ');
close (f); close (g);
end.