uses crt;
var i,count:integer;
a:array[1..8] of integer;
begin
count:=0;
randomize;
for i:=1 to 8 do a[i]:=random(19)-8;
for i:=1 to 8 do write(a[i],' ');
writeln;
for i:=1 to 8 do
begin
if a[i]<0 then inc(count);
if (a[i]<0) and (count = 5) then writeln(i);
end;
if count < 5 then writeln('empty');
readln();
end.
uses crt;
var i,count:integer;
a:array[1..8] of integer;
begin
count:=0;
randomize;
for i:=1 to 8 do a[i]:=random(19)-8;
for i:=1 to 8 do write(a[i],' ');
writeln;
for i:=1 to 8 do
begin
if a[i]<0 then inc(count);
if (a[i]<0) and (count = 5) then writeln(i);
end;
if count < 5 then writeln('empty');
readln();
end.
1)
var
s : real;
i, n : integer;
begin
s := 0;
read (n);
for i := 1 to n do s := s + 1 / i;
writeln (s);
end.
2)
var
a, i : integer;
begin
a := 1;
for i := 1 to 8 do
begin
a := a * 2;
writeln ('Через ', i * 3, 'часов будет ', a, ' амеб');
end;
end.
3)
var
n, i : integer;
x, s : real;
begin
s := 0;
read (n, x);
for i := 1 to n do
s := s + sin (i * x);
writeln (s);
end.
4)
var
n, a, r, i : integer;
begin
r := 1;
read (a, n);
for i := 1 to n do r := r * a;
writeln (r);
end.
Объяснение: