BT1: 

Uses crt;

var i,n: integer;

a: array[1..100] of longint;

begin clrscr;

readln(n);

for i:=1 to n do 

read(a[i]); readln;

writeln(a[i]:3);

readln;

end. 

BT2: 

Uses crt;

var i,n,k: integer;

a: array[1..100] of longint;

begin clrscr;

readln(n);

for i:=1 to n do 

read(a[i]); readln;

for i:=1 to n do begin

if(a[i] mod 2=0) then k:=k+a[i];

end;

writeln(k);

readln;

end.

uses crt;

var a:array[1..100]of integer;

begin

clrscr;

readln(n);

for i:=1 to n do readln(a[i]);

for i:=1 to n do write(a[i]:4);

readln;

end.

program HienThiSoChan;

var

      N, i: integer;

      A: array[1..50] of integer;

begin

      writeln('Nhap so nguyen duong N:');

      readln(N);

      writeln('Nhap day so A gom ', N, ' phan tu:');

      for i := 1 to N do

      begin

            readln(A[i]);

            if A[i] mod 2 = 0 then

            begin

                  writeln('Phan tu thu ', i, ' la so chan: ', A[i]);

            end;

      end;

      readln;

end.

Bài 1

Var a:array:[1..1000] of integer;

i,n:integer;

p:longint;

Begin

p:=1;

Write('n = ');readln(n);

For i:=1 to n do

Begin

Write('Nhap so thu ',i,' = ');readln(a[i]);

if a[i] mod 2 = 0 then p:=p*a[i];

End;

Write('Tich cac so chan la: ',p);

Write('Day viet nguoc lai la ');

For i:=n downto 1 do 

Write(a[i]:8);

Readln

End.

program TinhTichVaInDaoNguoc;
var a: array[1..1000] of integer;
       i, n: integer;
       s: longint;
begin
 s := 1;
  write'(nhap vao n : ');
  readln(n);

  for i := 1 to n do
  begin
    write('Nhap so thu ', i, ' = ');
    readln(a[i]);

    if a[i] mod 2 = 0 then
      s := s * a[i];
  end;

  writeln('Tich cac so chan la: ', s);
  writeln('Day viet nguoc lai la: ');

  for i := n downto 1 do
    write(a[i]:8);

  readln;
end.

Bài 1: 

uses crt;

var a:array[1..100]of integer;

i,n:integer;

begin

clrscr;

write('Nhap n='); readln(n);

for i:=1 to n do 

  begin

write('A[',i,']='); readln(a[i]);

end;

for i:=1 to n do 

  if a[i] mod 2<>0 then write(a[i]:4);

readln;

end.

Bài 2: 

uses crt;

var a:array[1..100]of integer;

i,n:integer;

begin

clrscr;

write('Nhap n='); readln(n);

for i:=1 to n do 

  begin

write('A[',i,']='); readln(a[i]);

end;

for i:=1 to n do

  if a[i] mod 2=0 then write(a[i]:4);

readln;

end.

Bài 3: 

uses crt;

var a:array[1..100]of integer;

i,n,t:integer;

begin

clrscr;

write('Nhap n='); readln(n);

for i:=1 to n do 

  begin

write('A[',i,']='); readln(a[i]);

end;

t:=0;

for i:=1 to n do 

  if a[i] mod 2<>0 then t:=t+a[i];

writeln(t);

readln;

end.

Program HOC24;

var i,n: integer;

t: longint;

a: array[1..1000] of integer;

begin

write('Nhap n: '); readln(n);

for i:=1 to n do

begin

write('Nhap so thu ',i,': '); readln(a[i]);

end;

t:=0;

for i:=1 to n do if a[i] mod 2=0 then t:=t+a[i];

write('Tong cac so chan la: ',t);

readln

end.

Program Tin_hoc;

Uses crt;

Var i,tam,n,chan,le,j:integer;

      a,daychan,dayle:array[1..10000] of integer;

Begin

clrscr;

Write('Nhap n: ');readln(n);

chan:=0;le:=0;

Writeln('Nhap ',n,' phan tu cua mang:');

For i:= 1 to n do 

Begin

write('A[',i,'] = ');

Readln(a[i]);

If a[i] mod 2 = 0 then 

  Begin

  inc(chan);

  daychan[chan]:=a[i];

  end

else

  Begin

  inc(le);

  dayle[le]:=a[i];

  End;

End;

For i:= 1 to chan do

  for j:= i to chan do If daychan[i]>daychan[j] then 

  Begin

  tam:=daychan[i];

  daychan[i]:=daychan[j];

  daychan[j]:=tam;

  End;

For i:= 1 to le do

  for j:= i to le do If dayle[i]<dayle[j] then 

  Begin

  tam:=dayle[i];

  dayle[i]:=dayle[j];

  dayle[j]:=tam

  End;

Writeln('Day sau khi sap xep:');

For i:= 1 to chan do write(daychan[i],'  ');

For i:= 1 to le do write(dayle[i],'  ');

Readln;

End.

Var z:array[1..1000] of longint;

n, i, max:longint;

Begin

Readln(n);

For i:=1 to n do begin writeln('s',i,'=');

Readln(z[i]);

max:= z[1];

End;

uses crt;

var a:array[1..100]of integer;

i,n,max,dem1,dem2:integer;

begin

clrscr;

write('Nhap n='); readln(n);

for i:=1 to n do 

  begin

write('A[',i,']='); readln(a[i]);

end;

max:=a[1];

for i:=1 to n do 

 if max<a[i] then max:=a[i];

writeln('So lon nhat la: ',max);

readln;

end.

program Soam;

var

     n, i: integer;

     a: array[1..1000] of integer;

begin

     write('Nhap so phan tu cua day: ');

     readln(n);

     for i := 1 to n do

     begin

          write('Nhap phan tu thu ', i, ': ');

          readln(a[i]);

     end;

     writeln('Cac phan tu am trong day la: ');

     for i := 1 to n do

     begin

          if a[i] < 0 then

               writeln(a[i]);

     end;

end.

1)

Var array:[1..1000] of integer;

i,n,t:integer;

Begin

Write('n = ');readln(n);

For i:=1 to n do

Begin

Write('Nhap so thu ',i,' = ');readln(a[i]);

End;

For i:=1 to n do

If a[i] > a[i+1] then

Begin

t:=a[i];

a[i]:=a[i+1];

a[i+1]:=t;

End;

Write('Sap xep tang dan ');

For i:=1 to n do write(a[i]:8);

Readln

End.

2)

Var array:[1..1000] of integer;

i,n,t:integer;

Begin

Write('n = ');readln(n);

For i:=1 to n do

Begin

Write('Nhap so thu ',i,' = ');readln(a[i]);

End;

For i:=1 to n do

If a[i] < a[i+1] then

Begin

t:=a[i];

a[i]:=a[i+1];

a[i+1]:=t;

End;

Write('Sap xep giam dan ');

For i:=1 to n do write(a[i]:8);

Readln

End.