#1
begin
var N := ReadInteger();
var sum:real := 1;
for var i := 1 to N do sum *= 1 / i;
sum.println;
end.
#2
begin
var N := ReadInteger();
var sum:real := 1;
var divisor := 1;
while divisor <= N do begin
sum *= 1/divisor;
divisor += 1;
end;
sum.Println;
end.
#3
begin
var N := ReadInteger();
var sum:real := 1;
var divisor := 1;
repeat begin
sum *= 1/divisor;
divisor += 1;
end;
until divisor > N;
sum.Println;
end.
А вообще:
begin
SeqGen(ReadInteger(), p -> 1/p, 1).product.Println;
end.
a, b: integer;
begin
b := 0;
a := 1;
repeat
b := b + 1;
a := a * 2;
until a = 1024;
writeln(b);
end.