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Cod sursa(job #676152)
var v:array [1..500000] of longint;
buf1, buf2:array [1.. 1 shl 17] of char;
i, j, n, aux:longint;
f, g:text;
procedure citire;
var c:char; nc:longint;
begin
nc:=0;
while i < n do
begin
read (f, c);
if (ord(c)>=48) and (ord (c) <= 57) then nc:=nc*10+ ord (c)-48
else begin inc (i); v[i]:=nc; nc:=0; end;
end;
end;
procedure qsort (st, dr:longint);
var s, d, m:longint;
begin
s:=st; d:=dr;
m:=st+random(dr-st)+1;
aux:=v[m]; v[m]:=v[st]; v[st]:=aux;
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, buf1); reset (f);
assign (g, 'algsort.out'); settextbuf (g, buf2); rewrite (g);
randomize;
readln (f, n);
i:=0; citire;
qsort (1, n);
for i := 1 to n do write (g, v[i], ' ');
close (f); close (g);
end.