uses crt;

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

i,n,dem:integer;

begin

clrscr;

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

for i:=1 to n do 

begin

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

end;

dem:=0;

for i:=1 to n do

  if (a[i] mod 3=0) and (a[i] mod 5=0) then inc(dem);

writeln('So phan tu chia het cho 3 va 5 trong day la: ',dem);

readln;

end.

#include <bits/stdc++.h>

using namespace std;

long long a[20],n=20,i,dem,t,s;

int main()

{

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

dem=0;

for (i=1; i<=n; i++) if (a[i]%9==2) dem++;

t=0;

for (i=1; i<=n; i++) if (a[i]%5==0) t+=a[i];

s=1;

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

if (a[i]%7==0) s*=a[i];

cout<<dem<<endl;

cout<<t<<endl;

cout<<s;

return 0;

}

const fi='dl.pas'

fo='qk.pas'

var f1,f2:text;

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

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

begin

assign(f1,fi); reset(f1);

assign(f2,fo); rewrite(f2);

readln(f1,n);

for i:=1 to n do 

  read(f1,a[i]);

dem:=0;

for i:=1 to n do 

  if (a[i] mod 2<>0) and (a[i] mod 7=0) then inc(dem);

t:=0;

for i:=1 to n do

  if (10<=a[i]) and (a[i]<=30) then t:=t+a[i];

dem1:=0;

for i:=1 to n do 

  if (a[i]<0) and (a[i] mod 2<>0) then inc(dem1);

dem2:=0;

for i:=1 to n do 

  if a[i]>1 then

begin

kt:=0;

for j:=2 to a[i]-1 do 

  if a[i] mod j=0 then kt:=1;

if kt=0 then inc(dem2);

end;

writeln(f2,'So phan tu le chia het cho 7 la: ',dem);

writeln(f2,'Tong cac phan tu thuoc [10,30] la: ',t);

writeln(f2,'So cac phan tu am le la: ',dem1);

writeln(f2,'So phan tu la so nguyen to la: ',dem2);

close(f1);

close(f2);

end.

type mang=array[1..10]of integer;

function demsochiahet(a:mang):integer;

var dem,i,n:integer;

begin

dem:=0;

for i:=1 to n do 

  if a[i] mod 7=0 then inc(dem);

demsochiahet:=dem;

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;

}