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#include <bits/stdc++.h>
using namespace std;
long long n,i,x,dem;
int main()
{
cin>>n;
dem=0;
for (i=1; i<=n; i++)
{
cin>>x;
if ((x>0) and (x%2==0)) dem++;
}
cout<<dem;
return 0;
}
#include <bits/stdc++.h>
using namespace std;
long long a[1000],n,i,dem,t,j,t1;
int main()
{
cin>>n;
for (i=1; i<=n; i++) cin>>a[i];
for (i=1; i<=n; i++) cout<<a[i]<<" ";
cout<<endl;
dem=0;
for (i=1; i<=n; i++)
{
t=0;
for (j=1; j<=a[i]-1; j++)
if (a[i]%j==0) t+=j;
if (t==a[i]) dem++;
}
cout<<dem<<endl;
t1=0;
for (i=1; i<=n; i++)
if (a[i]%2==0) t1+=a[i];
cout<<t1;
return 0;
}
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.
Program bt_3;
Uses crt;
Var a: array[1..100] of integer;
Dem, Tong, n, i: integer;
Begin
Clrscr;
Writeln(‘nhap so phan tu, n=’);
Readln (n);
for i := 1 to n do
begin
writeln(‘nhap gia trij phan tu thu ’,i,’ =’);
readln(a[i]);
end;
Dem:=0;
Tong:=0;
For i:=1 to n do
If (a[i] mod 2 = 0) and (a[i] mod 3 = 0) then
begin
Dem:= Dem+1;
Tong:= Tong+a[i];
end;
writeln(‘Dem la:’,Dem);
Writeln(‘Tong la:’,Tong);
Readln
End.
Program bt_3;
Uses crt;
Var a: array[1..100] of integer;
Dem, Tong, n, i: integer;
Begin
Clrscr;
Writeln(‘nhap so phan tu, n=’);
Readln (n);
for i := 1 to n do
begin
writeln(‘nhap gia trij phan tu thu ’,i,’ =’);
readln(a[i]);
end;
Dem:=0;
Tong:=0;
For i:=1 to n do
If (a[i] mod 2 = 0) and (a[i] mod 5 = 0) then
begin
Dem:= Dem+1;
Tong:= Tong+a[i];
end;
writeln(‘Dem la:’,Dem);
Writeln(‘Tong la:’,Tong);
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;
}
#include <bits/stdc++.h>
using namespace std;
long long x,n,i,t;
int main()
{
cin>>n;
t=0;
for (i=1; i<=n; i++)
{
cin>>x;
if ((x<0) and (x%2==0)) t=t+x;
}
cout<<t;
return 0;
}
uses crt;
var a,b:array[1..50]of integer;
i,n,dem,dem1,min:integer;
begin
clrscr;
n:=50;
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 2=0 then inc(dem);
dem1:=0;
for i:=1 to n do
if a[i]<0 then
begin
inc(dem1);
b[dem1]:=a[i];
end;
min:=b[1];
for i:=1 to dem1 do
if min>b[i] then min:=b[i];
writeln('Phan tu am be nhat trong mang la: ',min);
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.
#include <bits/stdc++.h>
using namespace std;
long long i,n,x,dem;
int main()
{
cin>>n;
dem=0;
for (i=1; i<=n; i++)
{
cin>>x;
if (x%2==0) dem++;
}
cout<<dem;
return 0;
}