uses crt;
var n, i : integer;
begin clrscr;
readln(n);
for i:=1 to 9 do writeln(n,' x ', i, ' = ', n*i);
readln;
end.

program MultiplicationTable;

uses crt;

var
  N, i, j: integer;

begin
  clrscr;
  write('Enter N: ');
  readln(N);

  for i := 1 to 9 do
  begin
    writeln(N, ' x ', i, ' = ', N*i);
  end;

  readln;
end.

uses crt;

var i,n:integer;

begin

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

writeln('bang nhan',n);

for i:=1 to 10 do writeln(n,' x ',i:2,' = ',n*i:3);

readln

end.

c1: 

#include <bits/stdc++.h>

using namespace std;

long long i,n,s;

int main()

{

cin>>n;

s=1;

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

cout<<s;

return 0;

}

Câu 2: 

#include <bits/stdc++.h>

using namespace std;

long long i,n,s;

int main()

{

cin>>n;

s=1;

for (i=1; i<=n; i++) if (i%2==0) s=s*i;

cout<<s;

return 0;

}

program bang_cuu_chuong;

uses crt;

var n,tich,i:integer;

begin

clrscr;

n:=2;i:=1;

while n<=9 do

begin

while i<=10 do

begin

tich:=n*i;

writeln(n,' x ',i,' = ',tich);

i:=i+1;

end;

n:=n+1;i:=1;

end;

readln;

end.

a)

uses crt;

var i,n:integer;

begin

clrscr;

repeat

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

until n<100;

if n mod 2=0 then 

begin

for i:=0 to n do 

  if i mod 2=0 then write(i:4);

end

else writeln(n,' khong la so chan');

readln;

end.

b)

uses crt;

var i,n:integer;

begin

clrscr;

repeat

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

until n<100;

if n mod 2=1 then 

begin

for i:=1 to n do 

  if i mod 2=1 then write(i:4);

end

else writeln(n,' khong la so le');

readln;

end.

Câu 1:

Program HOC24;

var i,p: integer;

t: longint;

begin

write('Nhap P: '); readln(p);

t:=0;

for i:=1 to p do if i mod 2<>0 then t:=t+i;

write('Tong cac so le la: ',t);

readln

end.

Câu 2:

Program HOC24;

var i,n: integer;

t: longint;

begin

write('Nhap N: '); readln(n);

t:=0;

for i:=1 to n do if i mod 2=0 then t:=t+i;

write('Tong cac so chan la: ',t);

readln

end.

Câu 3:

Program HOC24;

var i,t,n: integer;

begin

write('Nhap N: '); readln(n);

t:=0;

for i:=1 to n do if n mod i=0 then t:=t+i;

write('Tong cac uoc cua ',n,' la: ',t);

readln

end.

#include <bits/stdc++.h>

using namespace std;

long long i;

int main()

{

for (i=1; i<=10; i++)

cout<<"2*"<<i<<"="<<2*i<<endl;

return 0;

}

uses crt;

var i,j:integer;

begin

clrscr;

for i:=2 to 9 do

  begin

for j:=1 to 10 do 

  writeln(i,'*',j,'=',i*j);

end;

readln;

end.

Câu 1: 

uses crt;

var s,i:integer;

begin

clrscr;

s:=0;

for i:=1 to 10 do 

  s:=s+i;

writeln('Tong cua 10 so tu nhien dau tien la: ',s);

readln;

end.

Câu 2: 

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]>0 then inc(dem);

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

readln;

end.

Câu 3: 

uses crt;

var i,j:integer;

begin

clrscr;

for i:=1 to 9 do 

  begin

      writeln('Bang nhan ',i,' la: ');

for j:=1 to 10 do 

  writeln(i,'*',j,'=',i*j);

delay(200);

end;

readln;

end.