8)
a:=20;
b:=25;
a<b, c:=2*a-b;
c:=40-25;
c:=15;
1)
a:=3;
b:=8;
a:=8-3*2;
a:=2;
b:=24/2*4:
b:=48;
2)
Var
a,b,c,p,s:real;
Begin
Writeln('Enter A,B,C');
Readln(a,b,c);
p:=(a+b+c)/2;
S:=sqrt(p*(p-a)*(p-b)*(p-c));
writeln(S);
end.
Паскаль
var a,b,c,d:integer; x,y:real;
begin
writeln(a);
writeln(b);
writeln(c);
readln(a);
readln(b);
readln(c);
d:=b*b-4*a*c;
if d>0 then begin
x:=(-b+sqrt(d))/(2*a);
y:=(-b-sqrt(d))/(2*a);
writeln(x,y);
end;
if d=0 then begin
x:=-b/2*a;
writeln(x);
end;
if d<0 then begin
writeln('Уравнение не имеет корней')
end;
end.
const
m = 20;
var
arr: array[1..m] of integer;
i, j, k,r: integer;
begin
for i := 1 to m do begin
arr[i] := random(256);
end;
for i := 1 to m-1 do
for j := 1 to m-i do
if arr[j] > arr[j+1] then begin
k := arr[j];
arr[j] := arr[j+1];
arr[j+1] := k
end;
write (arr[20]);
readln
end.