Hãy nhập câu hỏi của bạn vào đây, nếu là tài khoản VIP, bạn sẽ được ưu tiên trả lời.
Bài 2:
uses crt;
var x,i,n,dem:integer;
begin
clrscr;
readln(n);
dem:=0;
for i:=1 to n do
begin
readln(x);
if x mod 2=0 then inc(dem);
end;
writeln(dem);
readln;
end.
a)
uses crt;
var s,i,n:integer;
begin
clrscr;
write('nhap n='); readln(n);
s:=0;
for i:=1 to n do
s:=s+i;
writeln(s);
readln;
end.
b)
uses crt;
var s,i,n:integer;
begin
clrscr;
write('nhap n='); readln(n);
s:=0;
i:=1;
while i<=n do
begin
s:=s+i;
inc(i);
end;
writeln(s);
readln;
end.
Câu 6:
uses crt;
var n,i:integer;
begin
clrscr;
readln(n);
for i:=1 to n do
if n mod i=0 then write(i:4);
readln;
end.
5:
uses crt;
var n,i,dem:integer;
begin
clrscr;
readln(n);
dem:=0;
for i:=0 to n do
if i mod 2=1 then
begin
write(i:4);
dem:=dem+1;
end;
writeln;
writeln(dem);
readln;
end.
program tinhtong;
var n,i : integer;
S : real;
begin
write('Nhap n: ');
readln(n);
i:=1;
S:=0;
while i<=n do
begin
S:=S+1/i;
i:=i+1;
end;
writeln('Tong S= ',S);
readln;
end.
program tinh_tong_S;
var
n, i: integer;
S: real;
begin
write('Nhap n: ');
readln(n);
S := 0;
i := 1;
while i <= n do
begin
S := S + 1 / i;
i := i + 1;
end;
writeln('Tong S la: ', S:0:2);
readln;
end.
*while..do
Program HOC24;
var i,n: integer;
s: real;
begin
write('Nhap n: '); readln(n);
i:=1;
while i<=n do
begin
s:=s+1/sqr(i);
i:=i+1;
end;
write('S= ',s:6:2);
readln
end.
uses crt;
var n,i,s:integer;
begin
clrscr;
write('Nhap n='); readln(n);
s:=0;
i:=1;
while i<=n do
begin
s:=s+i;
inc(i);
end;
writeln(s);
readln;
end.
