Hãy nhập câu hỏi của bạn vào đây, nếu là tài khoản VIP, bạn sẽ được ưu tiên trả lời.
Program HOC24;
const fi='DL.INP';
fo='DL.OUT';
var s: string;
d,i: byte;
f: text;
procedure ip;
begin
assign(f,fi);
reset(f);
read(f,s);
close(f);
end;
procedure out;
begin
assign(f,fo);
rewrite(f);
d:=0;
for i:=1 to length(s) do if s[i] in ['0'..'9'] then inc(d);
write(f,d);
close(f);
end;
begin
ip;
out;
end.
const fi='dl.inp';
fo='kq.out';
var f1,f2:text;
s:string;
d,i,dem:integer;
begin
assign(f1,fi); reset(f1);
assign(f2,fo); rewrite(f2);
readln(f1,s);
d:=length(s);
dem:=0;
for i:=1 to d do
if s[i] in ['0'..'9'] then inc(dem);
writeln(dem);
readln;
end.
uses crt;
const fi='songuyen.inp';
fo='songuyen2.out';
var a:array[1..100]of integer;
i,n,t1:integer;
f1,f2:text;
begin
clrscr;
assign(f1,fi); reset(f1);
assign(f2,fo); rewrite(f2);
readln(f1,n);
for i:=1 to n do readln(f1,a[i]);
t1:=0;
for i:=1 to n do if a[i] mod 2<>0 then t1:=t1+a[i];
writeln(t1);
writeln(f2,t1);
for i:=1 to n do
if a[i] mod 2<>0 then write(a[i]:4);
close(f1);
close(f2);
readln;
end.
uses crt;
const fi='data.txt';
var f1:text;
a:array[1..100]of integer;
n,i:integer;
begin
clrscr;
assign(f1,fi); reset(f1);
n:=0;
while not eof(f1) do
begin
n:=n+1;
read(f1,a[n]);
end;
for i:=1 to n do
if a[i] mod 2=0 then write(a[i]:4);
close(f1);
readln;
end.
uses crt;
const fi='input.txt';
fo='output.txt';
var f1,f2:text;
a,b:integer;
begin
assign(f1,fi); reset(f1);
assign(f2,fo); rewrite(f2);
readln(f1,a,b);
if (a=0) and (b=0) then writeln(f2,'Phuong trinh co vo so nghiem');
if (a<>0) then writeln(f2,-b/a:4:2);
if (a=0) and (b<>0) then writeln(f2,'Phuong trinh vo nghiem');
close(f1);
close(f2);
end.
a)
PROGRAM BAI1a;
VAR N, Tle, Tchan: integer;
BEGIN
Write ('Nhap N =');
Readln (N);
If (N mod 2) = 0 Then
Tle := N*((N - 2)/2 + 1)/2;
Tchan := (N + 2)*((N - 2)/2 + 1)/2;
If (N mod 2) = 1 Then
Tle := (N + 1)*((N-1)/2 +1)/2;
Tchan := (N + 1)*((N - 3)/2 + 1)/2;
WRITELN ('Sle =', Sle, 'Schan =', Schan);
READLN;
END.
1:
uses crt;
const fi='songuyen.doc';
var i:integer;
f1:text;
begin
clrscr;
assign(f1,fi); rewrite(f1);
for i:=1 to 10 do write(f1,i:4);
close(f1);
readln;
end.
const fi='songuyen.dat';
fo='ketqua.dat';
var f1,f2:text;
a:array[1..100]of integer;
i,n,s,ln:integer;
begin
assign(f1,fi); reset(f1);
assign(f2,fo); rewrite(f2);
readln(f1,n);
for i:=1 to n do
read(f1,a[i]);
s:=1;
ln:=a[1];
for i:=1 to n do
begin
s:=s*a[i];
if ln<a[i] then ln:=a[i];
end;
writeln(f2,s);
writeln(f2,ln);
close(f1);
close(f2);
end.
uses crt;
const fi='mang.inp';
var f1:text;
a:array[1..10000]of integer;
i,n:integer;
begin
clrscr;
assign(f1,fi); reset(f1);
n:=0;
while not eof(f1) do
begin
n:=n+1;
read(f1,a[i]);
end;
for i:=1 to n do write(a[i]:4);
close(f1);
readln;
end.
Bài 1:
const fi='so.inp';
fo='so.out';
var f1,f2:text;
a:array[1..100]of integer;
dem,i,t:integer;
begin
assign(f1,fi); reset(f1);
assign(f2,fo); rewrite(f2);
dem:=0;
while not eof(f1) do
begin
inc(dem);
readln(f1,a[dem]);
end;
writeln(f2,'Cac so nguyen am la: ');
for i:=1 to dem do
if a[i]<0 then write(f2,a[i]:4);
writeln(f2);
t:=0;
for i:=1 to dem do
if (a[i] mod 5=0) and (a[i] mod 3=0) then t:=t+a[i];
writeln(f2,'Tong cac so chia het cho 3 va 5 la: ',t);
close(f1);
close(f2);
end.
Bài 2:
uses crt;
const fi='baitap.txt';
fo='kq.qut';
var f1,f2:text;
a:array[1..100]of integer;
dem,i,n:integer;
begin
clrscr;
assign(f1,fi); reset(f1);
assign(f2,fo); rewrite(f2);
n:=0;
while not eoln(f1) do
begin
inc(n);
read(f1,a[n]);
end;
dem:=0;
for i:=1 to n do
if a[i] mod 5=0 then dem:=dem+1;
writeln('So luong cac so chia het cho 5 la: ',dem);
for i:=1 to n do
if sqrt(a[i])=trunc(sqrt(a[i])) then write(f2,a[i]:4);
close(f1);
close(f2);
readln;
end.