a:

#include <bits/stdc++.h>

using namespace std;

long long n,i,a[10000];

int main()

{

cin>>n;

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

cin>>a[i];

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

cout<<a[i]<<" ";

return 0;

}

#include <bits/stdc++.h>

using namespace std;

long long a[6],i,t,t1;

int main()

{

t=0;

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

{

cin>>a[i];

if (a[i]%2==0) t=t+a[i];

}

t1=0;

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

if ((a[i]%2!=0) and (i%2==0)) t1=t1+a[i];

cout<<t<<endl;

cout<<t1;

return 0;

}

uses crt;

var a:array[1..250]of integer;

i,n,dem,t,t1,t2,t3,t4:integer;

begin

clrscr;

repeat

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

until (0<n) and (n<=250);

for i:=1 to n do 

  begin

repeat

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

until (0<a[i]) and (a[i]<=500);

end;

dem:=0;

for i:=1 to n do 

  if a[i] mod 2=1 then inc(dem);

writeln('So phan tu co gia tri le la: ',dem);

t:=0;

for i:=1 to n do 

  if i mod 2=0 then t:=t+a[i];

writeln('Tong cac phan tu co chi so chan la: ',t);

t1:=0;

for i:=1 to n do 

  if i mod 2=1 then t1:=t1+a[i];

writeln('Tong cac phan tu co chi so le la: ',t1);

t2:=0;

for i:=1 to n do 

  if (i mod 2=0) and (a[i] mod 2=0) then t2:=t2+a[i];

writeln('Tong cac phan tu chan co chi so chan la: ',t2);

t3:=0;

for i:=1 to n do 

  if (i mod 2=1) and (a[i] mod 2=1) then t3:=t3+a[i];

writeln('Tong cac phan tu co chi so le la: ',t3);

t4:=0;

for i:=1 to n do 

  t4:=t4+a[i];

writeln('Trung binh cong cac so trong day la: ',t4/n:4:2);

readln;

end.

uses crt;

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

i,n,dem,dem1,dem2,t:integer;

begin

clrscr;

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

for i:=1 to n do 

begin

write('B[',i,']='); readln(b[i]);

end;

dem:=0;

dem1:=0;

for i:=1 to n do 

begin

if b[i]<0 then inc(dem);

if b[i]>0 then inc(dem1);

end;

writeln('So phan tu am la: ',dem);

writeln('So phan tu duong la: ',dem1);

t:=0;

for i:=1 to n do 

 if b[i]<>0 then t:=t+b[i];

writeln('Trung binh cac phan tu khac 0 trong mang la: ',t/(dem+dem1):4:2);

min:=b[1];

for i:=1 to n do

  if min>b[i] then min:=b[i];

dem2:=0;

for i:=1 to n do 

  if min=b[i] then

begin

 inc(dem2);

a[dem2]:=i;

end;

writeln('Gia tri nho nhat la: ',min);

writeln('Chi so la: ');

for i:=1 to dem2 do 

  write(a[i]:4);

readln;

end.

#include <bits/stdc++.h>

using namespace std;

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

int main()

{

cin>>n;

dem=0;

t=0;

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

{

cin>>x;

if (x%2==0) t+=x;

if (x%3==0) dem++;

}

cout<<"Tong cac so chan la: "<<t<<endl;

cout<<"So luong phan tu chia het cho 3 la: "<<dem;

return 0;

}

#include <bits/stdc++.h>

using namespace std;

int A[500],n,i,dem,dem1;

int main()

{

cin>>n;

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

for (int i=n; i>=1; i--) cout<<A[i]<<" ";

cout<<endl;

dem=0;

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

if (A[i]<10) dem++;

cout<<dem<<endl;

dem1=0;

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

if (A[i]>1)

{

bool kt=true;

for (int j=2; j*j<=A[i]; j++)

if (A[i]%j==0) kt=false;

if (kt==true) dem1++;

}

cout<<dem1;

return 0;

}

Var i,k,n,bk,tong: integer;

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

Begin

write('Nhap K: '); readln(k);

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

for i:=1 to n do

begin

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

end;

{câu a}

For i:=1 to n do 

if a[i]=k then bk:=bk+1;

writeln('Co so phan tu bang k la:',k);

{câu b}

For i:=1 to n do 

if a[i]=k then

begin

write(i,' ');

tong:=tong+a[i];

end;

write('. Tong la:',tong);

readln

end.

uses crt;
var k,n,tong,d,i:longint;a:array[1..1000]of longint;
begin
 clrscr;
  write('n=');readln(n);
  write('k=');readln(k);
  for i:=1 to n do
        begin
         write('a[',i,']=');readln(a[i]);
        end;
  d:=0;
  for i:=1 to n do if(a[i]=k)then inc(d);
  writeln('so phan tu bang voi:',k,' la:',d);
  write('cac so co vi tri bang voi:',k,' la:');
  tong:=0;
  for i:=1 to n do if(a[i]=k)then
        begin
         write(i,' ');
         tong:=tong+a[i];
        end;
  write('tong cua cac so bang voi:',k,' la:',tong);
 readln;
end.

A = [ ]

N = int(input("Nhập số phần tử của mảng: "))

for i in range(N):

     A.append(int(input("Nhập phần tử thứ %d: " % (i+1))))

count = 0

for i in range(N):

     if A[i] == 8:

          count += 1

print("Số lượng phần tử có giá trị bằng 8 là: ", count)