Cod sursa(job #196614)

Utilizator AndreiDDiaconeasa Andrei AndreiD Data 27 iunie 2008 14:59:15
Problema Loto Scor 0
Compilator fpc Status done
Runda Arhiva de probleme Marime 1.56 kb
type list=array[1..100] of longint;
var f,g:text;
ss,x:list;
n,m,i,j,k,s,st,dr,mij,a:longint;
ok:boolean;


procedure Sort(l, r: Integer);
var
  i, j, x, y: integer;
begin
  i := l; j := r; x := a[(l+r) DIV 2];
  repeat
    while a[i] < x do i := i + 1;
    while x < a[j] do j := j - 1;
    if i <= j then
    begin
      y := a[i]; a[i] := a[j]; a[j] := y;
      i := i + 1; j := j - 1;
    end;
  until i > j;
  if l < j then Sort(l, j);
  if i < r then Sort(i, r);
end;

procedure citire;
var i:longint;
begin
assign(f,'loto.in');reset(f);
assign(g,'loto.out');rewrite(g);
read(f,n,s);
for i:=1 to n do
              read(f,x[i]);
end;

procedure afisare(p:longint);
var i,j,k,a:longint;
begin
for i:=1 to n do
 for j:=1 to n do
  for k:=1 to n do
   if (x[i]+x[j]+x[k]=ss[p]) and(a=0) then begin
                write(g,x[i],' ',x[j],' ',x[k],' ');
                inc(a);
                break;
                end;
end;


procedure cautare;
begin
m:=0;
for i:=1 to n do
    for j:=1 to n do
        for k:=1 to n do begin
inc(m);
ss[m]:=x[i]+x[j]+x[k];
                         end;
sort(ss,1,m);
ok:=false;
st:=1;
dr:=m;
while st<=dr do begin
mij:=(st+dr) div 2;
if ss[st]+ss[dr]=s then begin
   ok:=true;
   afisare(st);
   afisare(dr);
   st:=dr+1;
   end
   else begin
   while (ss[st]+ss[dr]>s) and (dr>=1) do
                  dec(dr);
   while (ss[st]+ss[dr]<s) and (st<=m) do
                  inc(st);
end;
end;
end;

begin
citire;
cautare;
//if not ok then write(g,'-1');
close(f);
close(g);
end.