Cod sursa(job #69091)

Utilizator mlazariLazari Mihai mlazari Data 1 iulie 2007 10:58:42
Problema Stramosi Scor 80
Compilator fpc Status done
Runda Arhiva de probleme Marime 1.26 kb
Program Stramosi;
const cin : array[0..8] of longint=(1,5,25,125,625,3125,15625,78125,390625);
var m,n : longint;
    S : array[0..250000,0..7] of longint;
    log5 : array[1..250000] of integer;
    Intrare,Iesire : text;

procedure Citeste;
var i : longint;
begin
  assign(Intrare,'stramosi.in');
  reset(Intrare);
  readln(Intrare,n,m);
  for i:=1 to n do read(Intrare,S[i,0]);
end;

procedure CalcLog5;
var i : longint;
    p : integer;
begin
  p:=0;
  while cin[p+1]-1<=n do
   begin
     for i:=cin[p] to cin[p+1]-1 do log5[i]:=p;
     p:=p+1;
   end;
  for i:=cin[p] to n do log5[i]:=p;
end;

procedure Calcule;
var i,j,ip : longint;
begin
  CalcLog5;
  for i:=0 to 7 do S[0,i]:=0;
  for i:=1 to log5[n] do
   begin
     ip:=i-1;
     for j:=1 to n do S[j,i]:=S[S[S[S[S[j,ip],ip],ip],ip],ip];
   end;
end;

procedure Procesare;
var i,Q,P : longint;
    lg : integer;
begin
  assign(Iesire,'stramosi.out');
  rewrite(Iesire);
  for i:=1 to m do
   begin
     readln(Intrare,Q,P);
     while (P>0) and (Q>0) do
      begin
        lg:=log5[P];
        Q:=S[Q,lg];
        P:=P-cin[lg];
      end;
     writeln(Iesire,Q);
   end;
  close(Intrare);
  close(Iesire);
end;

begin
  Citeste;
  Calcule;
  Procesare;
end.