Câu 1:

program an_danh;

uses crt;

var tong,n,i: integer;

begin

clrscr;

tong:= 0;

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

for i:= 1 to n do tong:= tong + i;

write('Tong tu 1 den ',n,' = ',tong);

readln

end.

Câu 2:

program an_danh;

uses crt;

var tong,i: integer;

begin

clrscr;

tong:= 0;

for i:= 1 to 200 do

tong:= tong + i;

write('Tong 200 so nguyen dau tien: ',tong);

readln

end.

Câu 3:

program an_danh;

uses crt;

var tich:real;

i:integer;

begin

clrscr;

tich:= 1;

for i:= 1 to 30 do

tich:= tich * i;

write('Tich 30 so nguyen dau tien: ',tich:0:0);

readln

end.

Câu 4:

program an_danh;

uses crt;

var gt:real;

i,n: integer;

begin

clrscr;

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

gt:= 1;

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

write(n,'! = ',gt:0:0);

readln

end.

Câu 5:

program an_danh;

uses crt;

var x,n,i:integer;

kq:real;

begin

clrscr;

write('Nhap x: ');readln(x);

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

kq:= x;

for i:= 2 to n do kq:= kq * x;

write(x,' mu ',n,' = ',kq:0:0);

readln

end.

Câu 1:

uses crt;
var n,i,s:longint;
begin
clrscr;
write('n='); readln(n);
s:=0;
for i:=1 to n do
s:=s+i;
writeln('tong S=',s);
readln;
end.

Câu 2:

uses crt;
var i,s:longint;
begin
clrscr;
s:=0;
for i:=1 to 200 do
s:=s+i;
writeln('tong 200 so nguyen dau tien la: ',s);
readln;
end.

Câu 3:

uses crt;
var i:integer;
s:real;
begin
clrscr;
s:=1;
for i:=1 to 30 do
s:=s*i;
writeln(s:4:0);
readln;
end.

Câu 4:

uses crt;
var n:qword;
i:integer;
s:real;
begin
clrscr;
write('n='); readln(n);
s:=1;
for i:=1 to n do
s:=s*i;
writeln(n,'!=',s:4:0);
readln;
end.

Câu 5:

uses crt;
var n,x,i:longint;
lt:real;
begin
clrscr;
write('co so x='); readln(x);
write('so mu n='); readln(n);
if n>=0 then
begin
lt:=1;
for i:=1 to n do
lt:=lt*x;
writeln(x,'^',n,'=',lt:4:0);
end
else writeln('vui long nhap lai so mu khong am');
readln;
end.

Tui chơi nè

A nha