Первое:
var cookie = 25, milk = 10, coffee = 3; var count_cookie = 0.5, count_milk = 2, count_coffee = 5; var money = 50;
function ТчкЗпт(ч) { return String(ч).replace(".",","); }
document.write("Печенье в клеточку: " + cookie + " грн * " + ТчкЗпт(count_cookie) + " = " + ТчкЗпт(cookie * count_cookie) + "<br />");
document.write("Молоко бычье: " + milk + " грн * " + ТчкЗпт(count_milk) + " = " + ТчкЗпт(milk * count_milk) + "<br />");
document.write("Кофе: " + coffee + " грн * " + ТчкЗпт(count_coffee) + " = " + ТчкЗпт(coffee * count_coffee) + "<br /><br />");
document.write("Наличка: " + money + "<br />");document.write("Сдача: " + (money - cookie * count_cookie - milk * count_milk - coffee * count_coffee));
Второе:
var a=85;
var n1=a%10;
var n2= (a - n1) / 10;
var a=851;
var n1=a % 10;
var n2= (a % 100 - n1) / 10;
var n3= (a - n2 * 10 - n1) / 100;
var a=8511;
var n1=a % 10;
var n2= (a % 100 - n1) / 10;
var n3= (a % 1000 - n2 * 10 - n1) / 100;
var n4= (a - n3 * 100 - n2 * 10 - n1) / 1000;
120ₓ = 63₁₀
1 · x² + 2 · x¹ + 0 · x⁰ = 63
x² + 2x - 63 = 0;
D = 4 + 252 = 16²
x₁₂ = (-2 ± 16) / 2 = -9, 7
Отрицательная система счисления нам не подходит, поэтому ответом является 7.
Var n, s : integer;
begin
s := 0;
while 2 * 2 <> 5 do begin
readln(n);
if n < 0 then break;
if n > 100 then s := s + 1;
end;
writeln(s);
end.
Program project1;
var
x,A: integer;
begin
write('x:');
readln(x);
if (x>=-7) and (x<=7) then
A:=15
else
A:=5;
writeln(A);
readln;
end.
