Нужна Блок-схема program _1;
var
x, y: real;
begin
writeln ('Введите через пробел значения x и y:');
readln (x, y);
if x > 0 then
if y > 0 then
writeln ('I')
else
writeln ('IV')
else
if y > 0 then
writeln ('II')
else
writeln ('III');
end.
program _3;
const
A = 1;
B = 2;
C = 3;
var
y, m: real;
begin
y := cos(A - B) * C;
m := trunc(y) mod 3;
writeln(y:0:3);
writeln(m:0:3);
if m = 0 then
y := trunc(y)
else if m = 1 then
y := y - trunc(y);
writeln(y:0:3);
end.