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Var i,n:integer;
s:longint;
Begin
Write('n = ');readln(n);
For i:=1 to n-1 do
If (i mod 2 = 0) and (i mod 3 = 0) then
s:=s + i;
Write('Tong la ',s);
Readln;
End.
uses crt;
var a:array[1..100]of integer;
n,i,t,nn,kt:integer;
begin
clrscr;
readln(n);
for i:=1 to n do readln(a[i]);
t:=1;
for i:=1 to n do
if a[i] mod 3=0 then t:=t*a[i];
writeln(t);
kt:=0;
nn:=32567;
for i:=1 to n do
if a[i] mod 3=0 then
begin
if nn>a[i] then nn:=a[i];
kt:=1;
end;
if kt=0 then writeln('Khong co so chia het cho 3')
else writeln('So nho nhat chia het cho 3 la: ',nn);
for i:=1 to n do
if nn=a[i] then write(i:4);
writeln;
for i:=n downto 1 do
write(a[i]:4);
readln;
end.
#include <bits/stdc++.h>
using namespace std;
long long i,n,a[1000],dem,t;
int main()
{
cin>>n;
for (i=1; i<=n; i++)
cin>>a[i];
t=0;
for (i=1; i<=n; i++)
if (a[i]%15==0)
{
cout<<a[i]<<" ";
t+=a[i];
}
cout<<endl;
cout<<"Tong cac so chia het cho 3 va 5 la: "<<t;
return 0;
}
#include <bits/stdc++.h>
using namespace std;
long long a[10000],n,i,t;
int main()
{
cin>>n;
t=0;
for (i=1; i<=n; i++)
{
cin>>a[i];
t=t+a[i];
}
for (i=1; i<=n; i++) cout<<a[i]<<" ";
cout<<endl;
dem=0;
for (i=1; i<=n; i++)
if (a[i] %2==0) dem++;
cout<<dem<<endl;
cout<<t;
return 0;
}
#include <bits/stdc++.h>
using namespace std;
long long a[100],n,i,t,t1,dem,dem1;
//chuongtrinhcon
bool ktnt(long long x)
{
if (x<=1) return(false);
for (int i=2; i*i<=x; i++)
if (x%i==0) return(false);
return true;
}
//chuongtrinhchinh
int main()
{
cin>>n;
for (i=1; i<=n; i++)
{
cin>>a[i];
}
for (i=1; i<=n; i++) cout<<a[i]<<" ";
cout<<endl;
t=0;
for (i=1; i<=n; i++) if (a[i]%2==0) t=t+a[i];
cout<<t<<endl;
dem=0;
for (i=1; i<=n; i++) if (a[i]%3==0) dem++;
cout<<dem<<" ";
t1=0;
dem1=0;
for (i=1; i<=n; i++)
if (a[i]%2!=0)
{
t1+=a[i];
dem1++;
}
cout<<fixed<<setprecision(2)<<(t1*1.0)/(dem1*1.0)<<endl;
for (i=1; i<=n; i++)
if (ktnt(a[i])==true) cout<<a[i]<<" ";
return 0;
}
uses crt;
var a,t,dem:integer;
begin
clrscr;
t:=0;
dem:=0;
repeat
write('Nhap a='); readln(a);
if (a mod 2=0) and (a mod 3=0) then
begin
t:=t+a;
dem:=dem+1;
end;
until a=0;
writeln('Trung binh cong cua cac so chia het cho 3 va 2 la: ',t/dem:4:2);
readln;
end.