Cod sursa(job #201834)

Utilizator cypherMircea Grecu cypher Data 4 august 2008 11:58:10
Problema Stramosi Scor 80
Compilator fpc Status done
Runda Arhiva de probleme Marime 0.49 kb
program stramosi_010;
var a:array[0..250001,0..18] of longint;
	n,m:longint;
	i,j,r,l,u,v,w:longint;
	
BEGIN
	assign(input,'stramosi.in'); reset(input);
	assign(output,'stramosi.out'); rewrite(output);
	readln(n,m);
	for i:=1 to n do read(a[i,0]);
	for j:=1 to 17 do
		for i:=1 to n do a[i,j]:=a[a[i,j-1],j-1];
	for l:=1 to m do begin
		readln(u,v);
		for w:=0 to 17 do begin
			if (v and (1 shl w))>0 then u:=a[u,w];
		end;
		writeln(u);
	end;
	close(output); close(input);
END.