Bài 1:

Program HOC24;

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

i,n,d: integer;

begin

write('Nhap so phan tu: '); 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]<0) and (a[i] mod 2=0) then d:=d+1;

write('Co ',d,' so nguyen am chan trong day so');

readln

end.

Bài 2:

Program HOC24;

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

i,n: integer;

t: longint;

begin

write('Nhap so phan tu: '); 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 5=0 then t:=t+a[i];

write(Tong la: ',t);

readln

end.

Bài 3:

Program HOC24;

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

i,n: integer;

t: longint;

begin

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

for i:=1 to n do 

begin

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

end;

t:=1;

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

write('Tich la: ',t);

readln

end.

#include <bits/stdc++.h>

using namespace std;

long long x,n,i,t,dem;

int main()

{

cin>>n;

dem=0;

t=0;

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

{

cin>>x;

if (x%2==0 && x>10) t+=x;

if (x%2!=0 || x<100) dem++;

}

cout<<t<<" "<<dem;

return 0;

}

Bài 1:program sothuc;

uses crt;

var a:array[1..10] of real;s,i,j:real;

begin

s:=0;

for i:=1 to 10 do begin writeln('A[',i,']=');readln(a[i]); end;

for i:=1 to 10 do if a[i]<0 then

for j:=1 to 10 do

begin a[j]:=sqr(a[i]); s:=s+a[j]; end;

writeln('tong binh phuong cac so am la: ',s:2:2); readln;

end. (Khi nào mình kiểm tra chạy lại trên phần mềm rồi sửa lại nếu sai nhé)

Bài 2: 

program soduong;

uses crt;

var a:array[1..100] of integer;s,i,n:integer;

begin

clrscr;

writeln('nhap do dai cua day');readln(n);

for i:=1 to n do begin

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

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

writeln('tong so duong trong day la',s:2:0);readln

end.

Bài 3: các số dương mà là số lẻ là sao thế bạn????

Bài 1:

program in_phan_tu;

uses crt;

var n,i:longint;

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

begin

clrscr;

write('nhap so n:');readln(n);

for i:=1 to n do

begin

write('nhap phan tu a[',i,']:');readln(a[i]);

end;

for i:=1 to n do

write(a[i]:3);

readln;

end.

Bài 2:

program tong_phan_tu;

uses crt;

var n,i,tong:longint;

a:array[1..100] of longint;

begin

clrscr;

write('nhap so n:');readln(n);

for i:=1 to n do

begin

write('nhap phan tu a[',i,']:');readln(a[i]);

end;

tong:=0;

for i:=1 to n do

tong:=tong+a[i];

writeln('tong cua day la:');

readln;

end.

Bài 3:

program tong_phan_tu_chan;

uses crt;

var n,i,tong:longint;

a:array[1..100] of longint;

begin

clrscr;

write('nhap so n:');readln(n);

for i:=1 to n do

begin

write('nhap phan tu a[',i,']:');readln(a[i]);

end;

tong:=0;

for i:=1 to n do

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

writeln('tong cua day la:');

readln;

end.

Câu 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 

  write(a[i]:4);

readln;

end.

Câu 2: 

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 

 t:=t+a[i];

writeln(t);

readln;

end.

#include <bits/stdc++.h>
using namespace std;
int main ()
{
    int a[32];
    int n,i,s;
    cout<<"nhap so phan tu cua mang ";
    cin>>n;
    cout<<"nhap cac phan tu cua mang ";
    for (i=1; i<=n; i++)
    {
        s=0;
        cin>>a[i];

    }
    for(i=1; i<=a[i]; i++) s=s+i;

    cout<<s;
    return 0;
}

Program HOC24;

var i,n: integer;

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

t: longint;

begin

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

for i:=1 to n do

begin

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

end;

t:=0;

for i:=1 to n do t:=t+a[i];

write('Tong la: ',t);

readln

end.

ngu thế mà cũng ko lm được dcd

uses crt;

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

i,n,t:integer;

s:real;

begin

clrscr;

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

for i:=1 to n do 

begin

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

end;

s:=1;

for i:=1 to n do 

  s:=s*a[i];

writeln('Tich la: ',s:0:0);

t:=0;

for i:=1 to n do 

  t:=t+a[i];

writeln('Trung binh la: ',t/n:4:2);

readln;

end.

program timtich;

uses  crt;

var i,n:integer;

tich:longint;

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

begin

clrscr;

write('nhap so n:');readln(n);

for i:=1 to n do

begin

write('nhap phan tu a[',i,']:');readln(a[i]);

end;

for i:=1 to n do

write(a[i]:4);

tich:=1;

writeln;

for i:=1 to n do

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

writeln('tich ca phan tu chan cua mang la:',tich);

readln;

end.

program timtong;

uses  crt;

var i,n:integer;

tong:longint;

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

begin

clrscr;

write('nhap so n:');readln(n);

for i:=1 to n do

begin

write('nhap phan tu a[',i,']:');readln(a[i]);

end;

for i:=1 to n do

write(a[i]:4);

tong:=0;

writeln;

for i:=1 to n do

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

writeln('tong cac phan tu chan cua mang la:',tong);

tong:=0;

writeln;

for i:=1 to n do

if a[i] mod 2=1 then tong:=tong+a[i];

writeln('tong cac phan tu le cua mang la:',tong);

readln;

end.

Bài 1: 

uses crt;

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

i,n,s:integer;

begin

clrscr;

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

for i:=1 to n do 

begin

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

end;

s:=1;

for i:=1 to n do 

  if a[i] mod 2=0 then s:=s*a[i];

writeln(s);

readln;

end.

uses crt;

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

i,n,t1,t2:integer;

begin

clrscr;

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

for i:=1 to n do 

begin

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

end;

t1:=0;

t2:=0;

for i:=1 to n do

begin

if a[i] mod 2=0 then t1:=t1+a[i]

else t2:=t2+a[i];

end;

writeln('Tong cac so chan la: ',t1);

writeln('Tong cac so le la: ',t2);

readln;

end.