Как это решать ??? быстро

1.
var
  s: string;
  i, count: integer;
begin
  writeln('Vvedite stroky: ');
  readln(s);
  for i := 1 to length(s) - 2 do
    if copy(s, i, 3) = 'abc' then
      count := count + 1;
  writeln('Kol-vo: ', count);
end.
2.
var
  s1, s2: string;
  i, len1, len2: integer;
begin
  writeln('Vvedite stroky 1: ');
  readln(s1);
  writeln('Vvedite stroky 2: ');
  readln(s2);
  len1 := length(s1);
  len2 := length(s2);
  if len1 > len2 then writeln('1 stroka dlinnee')
  else if len1 < len2 then writeln('2 stroka dlinnee')
  else writeln('dlini strok ravnie')
end.
3.
var
  s1, s2, s3: string;
begin
  writeln('Vvedite stroky 1: ');
  readln(s1);
  writeln('Vvedite stroky 2: ');
  readln(s2);
  s3 := s1[1] + s1[2] + s2[1] + s2[2];
  writeln('Novaja stroka: ', s3);
end.

//Я просто опишу метод записи матрицы
const n=100;
var ar:array of array of integer;
 ars:array of array of string;
 i:integer;
 
procedure complection(var ar:array of array of integer;var ars:array of array of string);
var
 i,j:integer;
begin;
for i:=1 to n do
 begin;
   for j:=1 to n do
    begin;
     ar[i,j]:=random(9);
     str(ar[i,j],ars[i,j]);
    end;
 end;
end;

procedure burning(ars:array of array of string);
var
 i,j:integer;
 t:text;
 begin;
  assign(t,'text.txt');
  rewrite(t);
  for i:=1 to n do
   begin;
    writeln(t,' ');
     for j:=1 to n do
      write(t,ars[i,j],' ');
   end;
 end;  

begin;
randomize;
setlength(ar,n+1);
setlength(ars,n+1);
for i:=1 to n do
 begin;
  setlength(ar[i],n+1);
  setlength(ars[i],n+1);
 end;
complection(ar,ars);
burning(ars);
end.