petyaGavrikov

Verified answer

Var a,k:integer;
begin
readln(a);
k:=0;
while a>0 do
 begin
 if a mod 2 = 1 then k:=k+1;
 a:=a div 2;
 end;
writeln('k = ',k);
end.

Пример:
10
k = 2