Bài 1

Var a:array:[1..99] of integer;

i,n:integer;

s:longint;

Begin

Repeat

Write('n = ');readln(n);

Until (n > 0) and (n < 100);

For i:=1 to n do

Begin

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

if a[i] mod 2 = 0 then s:=s+a[i];

End;

Write('Cac so vua nhap la: ');

For i:=1 to n do 

Write(a[i]:8);

writeln;

write('Tong cac so chan la ',s);

Readln

End.

Bài 2

Var a:array:[1..99] of integer;

i,n:integer;

s:longint;

Begin

Repeat

Write('n = ');readln(n);

Until (n > 0) and (n < 100);

For i:=1 to n do

Begin

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

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

End;

Write('Cac so vua nhap la: ');

For i:=1 to n do 

Write(a[i]:8);

writeln;

write('Tong cac so le la ',s);

Readln

End.

uses crt;

var a:array[1..10]of longint;

n,i,t,dem,dem1,dem2,t1:integer;

begin

clrscr;

readln(n);

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

for i:=1 to n do write(a[i]:4);

writeln;

t:=0;

for i:=1 to n do t:=t+a[i];

writeln(t);

t1:=0;

dem1:=0;

dem2:=0;

for i:=1 to n do 

  begin

if a[i]>0 then dem1:=dem+1;

if a[i] mod 2=0 then 

begin

dem2:=dem2+1;

t1:=t1+a[i];

end;

end;

writeln(dem1);

writeln(t1/dem2:4:2);

readln;

end.

B

uses crt;

var a:array[1..10]of longint;

n,i,t,dem,dem1,dem2,t1:integer;

begin

clrscr;

readln(n);

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

for i:=1 to n do write(a[i]:4);

writeln;

t:=0;

for i:=1 to n do t:=t+a[i];

writeln(t);

t1:=0;

dem1:=0;

dem2:=0;

for i:=1 to n do 

  begin

if a[i]>0 then dem1:=dem+1;

if a[i] mod 2=0 then 

begin

dem2:=dem2+1;

t1:=t1+a[i];

end;

end;

writeln(dem1);

writeln(t1/dem2:4:2);

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.

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 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:array[1..1000]of integer;

i,n,dem,t:integer;

begin

clrscr;

repeat

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

until (0<n) and (n<=1000);

for i:=1 to n do 

begin

repeat

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

until abs(a[i])<=1000;

end;

for i:=1 to n do 

  write(a[i]:4);

writeln;

dem:=0;

for i:=1 to n do 

  if a[i]=0 then inc(dem);

writeln('So phan tu bang 0 la: ',dem);

t:=0;

for i:=1 to n do 

  if a[i] mod 2=0 then t:=t+a[i];

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

readln;

end. 

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

arr = []

for i in range(n):

     arr.append(int(input("Nhập phần tử thứ " + str(i+1) + ": ")))

even_arr = []

odd_arr = []

for num in arr:

     if num % 2 == 0:

          even_arr.append(num)

     else:

          odd_arr.append(num)

new_arr = even_arr + odd_arr

print("Mảng mới: ", new_arr)