1)123_8= 83_10
FF_16= 255_10
11100111_2= 231_10
2)83+255-231=107
3)107_10=1101011_2
<span>program</span> Project1;
uses crt;
<span>const</span>
<span>//Разделители слов.</span>
D <span>=</span><span>[</span><span>'.'</span><span>,</span><span>','</span><span>,</span><span>':'</span><span>,</span><span>';'</span><span>,</span><span>'!'</span><span>,</span><span>'?'</span><span>,</span><span>'-'</span><span>,</span><span>' '</span><span>,</span> #<span>9</span><span>,</span> #<span>10</span><span>,</span> #<span>13</span><span>]</span>;
<span>var</span>
S <span>:</span><span>String</span>;
i<span>,</span> Cnt<span>,</span> Len <span>:</span><span>Integer</span>;
<span>begin</span>
<span>repeat</span>
<span>Writeln</span><span>(</span><span>'Задайте строку:'</span><span>)</span>;
<span>Readln</span><span>(</span>S<span>)</span>;
Len <span>:=</span> Length<span>(</span>S<span>)</span>;
Cnt <span>:=</span><span>0</span>;
<span>for</span> i <span>:=</span><span>1</span><span>to</span> Len <span>do</span><span>begin</span>
<span>//Пропускаем разделители.</span>
<span>if</span> S<span>[</span>i<span>]</span><span>in</span> D <span>then</span> Continue;
<span>//Отслеживаем начало слова.</span>
<span>if</span><span>(</span>i <span>=</span><span>1</span><span>)</span><span>or</span><span>(</span>S<span>[</span>i <span>-</span><span>1</span><span>]</span><span>in</span> D<span>)</span><span>then</span><span>begin</span>
<span>if</span> S<span>[</span>i<span>]</span><span>in</span><span>[</span><span>'a'</span><span>,</span><span>'A'</span><span>]</span><span>then</span> Cnt <span>:=</span> Cnt <span>+</span><span>1</span>;
<span>end</span>;
<span>end</span>;
<span>Writeln</span><span>(</span><span>'В заданной строке найдено '</span><span>,</span> Cnt<span>,</span><span>' слов,'</span><span>)</span>;
<span>Readln</span><span>(</span>S<span>)</span>;
<span>until</span> S <> <span>''</span>;
<span>end</span>.
A) sqrt(x1*x1+x2*x2)
b) 1/(1+1/(2+1/(2+3/5)))
c) (-b+sqrt(b*b-4*a*c))/(2*a)
d) sqrt(1-sqr(sin(x)))
e) (-b+1/a)/(2/c)
f) (sqrt(x+1)+sqrt(x-1))/(2*sqrt(x))
g) m*g*cos(a*a)
h) 1/(1+(a+b)/2)
i) (a*b+b*c)/(a*d)
Var a:array[1..30] of integer;
i:integer;
begin
for i:=1 to 30 do
begin a[i]:=2*i;
write(a[i],' ');
end;
end.