uses crt;

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

i,n,dem1,dem2,t1,t2,sa,sd,vt1,vt2:integer;

begin

clrscr;

readln(n);

for i:=1 to n do readln(a[i]);

dem1:=0;

t1:=0;

dem2:=0;

t2:=0;

for i:=1 to n do 

begin

if a[i]>0 then begin inc(dem1); t1:=t1+a[i]; end;

if a[i]<0 then begin inc(dem2); t2:=t2+a[i]; end;

end;

writeln(dem1);

writeln(dem2);

writeln(t1);

writeln(t2);

for i:=1 to n do 

  if a[i]>0 then 

begin

sd:=a[i];

vt1:=i;

break;

end;

if (dem1=0) then writeln('Khong co so duong trong day')

else writeln('So duong dau tien la: ',sd,' vi tri la: ',vt1);

for i:=1 to n do 

  if a[i]<0 then 

begin

sa:=a[i];

vt2:=i;

break;

end;

if (dem2=0) then writeln('Khong co so am trong day')

else writeln('So am dau tien la: ',sa,' vi tri la: ',vt2);

readln;

end.

uses crt;

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

n,i,k,dem,dem1:integer;

begin

clrscr;

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

for i:=1 to n do 

  begin

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

end;

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

dem:=0;

dem1:=0;

for i:=1 to n do 

  begin

if a[i] mod 2=0 then inc(dem);

if a[i] mod k=0 then inc(dem1);

end;

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

writeln('So phan tu chia het cho ',k,' la: ',dem1);

readln;

end.

#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;

}

#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;

}

#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;

}

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

i,s:integer;

Begin

For i:=1 to 100 do

Begin

Write('Nhap phan tu thu ',i,' = ');readln(a[i]);

If a[i] mod 2 <> 0 then s:=s+a[i];

End;

Write('Tong la ',s);

Readln;

End.

uses crt;

var a:array[1..6]of integer;

i,dem,t:integer;

begin

clrscr;

for i:=1 to 6 do 

  begin

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

end;

dem:=0;

t:=0;

for i:=1 to 6 do 

if a[i]>0 then 

begin

inc(dem);

t:=t+a[i];

end;

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

writeln('Tong cac phan tu duong la: ',t);

readln;

end.

Câu 1:

program mangsonguyen;

var

     a: array[1..100] of integer;

     i, n: integer;

begin

     writeln('Nhap so phan tu trong mang: ');

     readln(n);

     writeln('Nhap cac phan tu cua mang: ');

     for i := 1 to n do

          readln(a[i]);

     writeln('Mang vua nhap la:');

     for i := 1 to n do

          write(a[i], ' ');

end.

Câu 2: 

program trungbinhcong;

var

     a: array[1..100] of integer;

     i, n, k, sum: integer;

     avg: real;

begin

     writeln('Nhap so phan tu trong mang: ');

     readln(n);

     writeln('Nhap cac phan tu cua mang: ');

     for i := 1 to n do

          readln(a[i]);

     writeln('Nhap so k: ');

     readln(k);

     sum := 0;

     for i := 1 to n do

     begin

          if a[i] <= k then

               sum := sum + a[i];

     end;

     if sum > 0 then

     begin

          avg := sum / n;

          writeln('Trung binh cong cac phan tu co gia tri <= ', k, ' la: ', avg:0:2);

     end

     else

     begin

          writeln('Khong co phan tu nao co gia tri <= ', k);

     end;

end.

Câu 3: 

program DemSoNguyenTo;

var

     a: array [1..100] of integer;

     i, j, n, count: integer;

     laSoNguyenTo: boolean;

begin

     write('Nhap so phan tu cua mang: ');

     readln(n);

     write('Nhap cac phan tu cua mang: ');

     for i := 1 to n do

          readln(a[i]);

     count := 0;

     writeln('Cac so nguyen to trong mang la: ');

     for i := 1 to n do

     begin

          laSoNguyenTo := true;

          for j := 2 to (a[i] div 2) do

          begin

               if (a[i] mod j = 0) then

               begin

                    laSoNguyenTo := false;

                    break;

               end;

          end;

          if laSoNguyenTo and (a[i] > 1) then

          begin

               writeln(a[i]);

               count := count + 1;

          end;

     end;

     writeln('Tong so cac so nguyen to la: ', count);

     readln;

end.

Câu 4: 

#include <bits/stdc++.h>

using namespace std;

string st;

int d,i,dem;

char x;

int main()

{

getline(cin,st);

d=st.length();

cout<<st<<endl;

cin>>x;

dem=0;

for (i=0; i<=d-1; i++) if (st[i]==x) dem++;

cout<<dem;

return 0;

}

Câu 4: 

#include <bits/stdc++.h>

using namespace std;

string st;

int d,i,dem;

char x;

int main()

{

getline(cin,st);

d=st.length();

cout<<st<<endl;

cin>>x;

dem=0;

for (i=0; i<=d-1; i++) if (st[i]==x) dem++;

cout<<dem;

return 0;

}