Неліктен мәтінді форматтау тегтерден тұрады?

с2н6+cl2=c2h5сl+hcl

с2н6-этан

с2н5cl- хлорэтан или хлористый этил

uses crt; var a[1..100] of integer; i,n,count: integer; begincount: =0; read(n); for i: =1 to n do read(a[i]); if a[i]> 0 then inc(count); write(count); end.

1)

var

a,b: array [1..100] of integer;

i,j,k,a,b,f: integer;

begin

randomize;

readln(a);

readln(b);

k: =0;

for i: =1 to 20 do

begin

a[i]: =random(135)-45;

f: =0;

for j: =a to b do

if (a[i]=j) and (a[i] mod 7 =0) then f: =1;

if f=0 then

begin

k: =k+1;

b[k]: =a[i];

end;

end;

for i: =1 to k do

writeln(b[i]);

end.

2)

var

a,b: array [1..100] of integer;

i,j,k: integer;

begin

randomize;

readln(k);

j: =0;

for i: =1 to 20 do

begin

a[i]: =random(135)-45;

writeln(a[i]);

for i: =1 to 19 do

begin

if a[i]*a[i+1]> 0 then

begin

j: =j+1;

b[j]: =a[i];

j: =j+1;

b[j]: =k;

end

else

begin

j: =j+1;

b[j]: =a[i];

end;

end;

j: =j+1;

b[j]: =a[20];

for i: =1 to j do

writeln(b[j]);

3)

var

a,b: array [1..20] of integer;

i,j,k1,k2: integer;

begin

randomize;

readln(k1);

readln(k2);

if k1< k2 then

begin

for i: =1 to 20 do

begin

a[i]: =random(135)-45;

writeln(a[i]);

end;

for i: =1 to k1-1 do

b[i]: =a[i];

for i: =k2+1 to 20 do

b[i]: =a[i];

j: =k2;

for i: =k1 to k2 do

begin

b[j]: =a[i];

j: =j-1;

end;

for i: =1 to 20 do

writeln(b[i]);

end;

end.

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