var n,i: integer;

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

begin

write('Nhap so 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 writeln(a[i]);

end.

Câu 1: 

uses crt;

var a:array[1..5]of integer;

max,i:integer;

begin

clrscr;

for i:=1 to 5 do 

  begin

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

end;

max:=a[1];

for i:=1 to 5 do 

  if max<a[i] then max:=a[i];

writeln(max);

readln;

end.

Câu 2: 

uses crt;

var a:array[1..6]of integer;

min,i:integer;

begin

clrscr;

for i:=1 to 6 do 

  begin

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

end;

min:=a[1];

for i:=1 to 6 do 

  if min>a[i] then min:=a[i];

writeln(min);

readln;

end.

Program HOC24;

var a: array[1..50] of integer;

i,n: byte;

t: longint;

begin

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

for i:=1 to n do

begin

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

end;

write('Cac phan tu chan trong mang la: ');

for i:=1 to n do

if a[i] mod 2=0 then

begin

write(a[i],' ');

t:=t+a[i];

end;

writeln;

write('Tong cac phan tu chan trong day la: ',t);

readln

end.

Program HOC24;

var i,n: byte;

t: longint:

a: array[1..50] of integer;

begin

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

for i:=1 to n do begin write('A[',i,']='); readln(a[i]); end;

t:=0;

write('Cac phan tu chan co trong mang la: ');

for i:=1 to n do

if a[i] mod 2=0 then

begin

write(a[i],' ');

t:=t+a[i];

end;

writeln;

write('Tong cac phan tu chan do la: ',t);

readln

end.

6:

#include <bits/stdc++.h>

using namespace std;

int main()

{

int n,A[100],i,dem=0;

cin>>n;

for (int i=1; i<=n; i++) cin>>A[i];

for (int i=1;i<=n; i++)

if (A[i]%2!=0) dem++;

cout<<dem;

return 0;

}

5:

#include <bits/stdc++.h>

using namespace std;

int main()

{

long long n,nn=1e6,A[1000];

cin>>n;

for (int i=1; i<=n; i++) cin>>A[i];

for (int i=1; i<=n; i++)

nn=min(nn,A[i]);

for (int i=1; i<=n; i++)

if (nn==A[i]) cout<<i<<" ";

return 0;

}

Bài 1

Var a:array:[1..99] of integer;

i,n:integer;

s:longint;

Begin

Repeat

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

Until (n > 0) and (n < 100);

For i:=1 to n do

Begin

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

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

End;

Write('Cac so vua nhap la: ');

For i:=1 to n do 

Write(a[i]:8);

writeln;

write('Tong cac so chan la ',s);

Readln

End.

Bài 2

Var a:array:[1..99] of integer;

i,n:integer;

s:longint;

Begin

Repeat

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

Until (n > 0) and (n < 100);

For i:=1 to n do

Begin

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

if a[i] mod 2 <> 0 then s:=s+a[i];

End;

Write('Cac so vua nhap la: ');

For i:=1 to n do 

Write(a[i]:8);

writeln;

write('Tong cac so le la ',s);

Readln

End.

Đề thiếu rồi bạn

uses crt;

var C : array [1 .. 50] of integer;

i, n : integer;

begin

clrscr;

write('Nhap so phan tu : '); readln(n);

write('Nhap day gom ', n ,' so : ');

for i := 1 to n do read(C[i]);

write('Cac gia tri chan : ');

for i := 1 to n do

if C[i] mod 2 = 0 then write(C[i], ' ');

readln

end.

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

      i,n,S,d:byte;

 begin

  write(' n = '); readln(n);

  for i:=1 to n do begin

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

                           readln(A[i]);

                          end;

d:=0; S:=0;

for i:=1 to n do if A[i] mod 2 = 0 then begin

                                                          d:=d+1;

                                                           S:=S+A[i];

                                                           end;

write('Dãy có ',d,' phần tử là số chẵn và tổng của chúng là : S = ',S);

readln

end.

 tách ra từng câu hỏi đi bro

Câu 1: 

uses crt;

var a:array[1..200]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.

2:

uses crt;

var a:array[1..200]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:=1;

for i:=1 to n do 

  t:=t*a[i];

writeln(t);

readln;

end.

Uses crt;

Var a:array[1..6] of integer;

I,s:integer;

Begin

Clrscr;

For i:=1 to 6 do 

Begin

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

End;

S:=1;

For i:=1 to 6 do

If a[i] mod 3=0 then s:=s*a[i];

Writeln(s);

Readln;

End.