Câu 1: 
uses crt;
var s,i,n:integer;
begin clrscr;
s:=0;
write('Nhap n: ');readln(n);
for i:=1 to n do
if i mod 2 <> 0 then inc(s,i);
write('Tong cac so le tu 1 den ',n,' la: ',s);
readln
end.

Câu 2:
uses crt;
var s,i,n:integer;
begin clrscr;
s:=0;
write('Nhap n: ');readln(n);
for i:=1 to n do
if i mod 2 = 0 then inc(s,i);
write('Tong cac so le tu 1 den ',n,' la: ',s);
readln
end.

Chọn D

Đề không có đáp án đúng, bạn kiểm tra lại đề nhé

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.

Cau 1:

var i,dem:integer;

function ngto(n:longint):boolean;
var bo:boolean;
i:longint;
begin
    bo:=true;
    for i:=2 to n-1 do 
    if n mod i=0 then bo:=false;
    if n>1 then ngto:=bo else ngto:=false;
end;
begin
    for i:=2 to 100 do 
    if ngto(i) then dem:=dem+i;
    write(dem);
readln;
end.

Cau 2:

var i,dem,n:longint;

begin
    read(n);
    dem:=1;
    for i:=1 to n do 
    dem:=dem*i;
    write(dem);
readln;
end.

uses crt;

var i,n,t:integer;

begin

clrscr;

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

t:=0;

for i:=1 to n do 

 if i mod 2=0 then t:=t+i;

writeln(t);

readln;

end.

uses crt;

var i,n,t:integer;

begin

clrscr;

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

t:=0;

for i:=1 to n do 

 if i mod 2=1 then t:=t+i;

writeln(t);

readln;

end.

Bài 1: 

uses crt;

var n,i:integer;

s:real;

begin

clrscr;

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

s:=1;

for i:=1 to n do 

 s:=s*i;

writeln(n,'!=',s:0:0);

readln;

end.

1).

program oken;

uses crt;

var n,i: integer;

      gt: qword;

begin

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

gt:=1;

for i:=1 to n do gt:=gt*i;

writeln('N!=',gt);

readln;

end.

2).

program tongcacsole;

uses crt;

var t,i:longint;

begin

clrscr;

for i:=1 to 203 do 

  if i mod 2 = 1 then t:=t+i;

write(t);

end.

3).

program tongcacsochan;

uses crt;

var t,i:longint;

begin

clrscr;

for i:=1 to 20 do 

  if i mod 2 = 0 then t:=t+i;

write(t);

end.

1.

Var i ,n : integer;

S , T : real;

Begin

Write ('n:') ;

Read (n) ;

S:= 0;

T:= 1;

For i:= 1 to n do

S:= S + i;

T:= T * i;

Writeln (' Tong cua ' ,n,' , S );

Writeln (' Tich của ' ,n,', T );

Readln;

End.

2.

program SumAndProductOfNumbers;

var
  n, m, i, sum, product: integer;

begin
  writeln('Enter the values of n and m: ');
  readln(n, m);
  
  sum := 0;
  product := 1;
  
  for i := n to m do
  begin
    sum := sum + i;
    product := product * i;
  end;
  
  writeln('The sum of numbers from ', n, ' to ', m, ' is: ', sum);
  writeln('The product of numbers from ', n, ' to ', m, ' is: ', product);
end.