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uses crt;

var s:string;

i,d,dem1,dem2,dem3,dem4:integer;

begin

clrscr;

write('Nhap xau s:'); readln(s);

d:=length(s);

dem1:=0;

dem2:=0;

dem3:=0;

dem4:=0;

for i:=1 to d do 

  begin

if st[i] in ['0'..'9'] then inc(dem1)

else if st[i] in ['a'..'z'] then inc(dem2)

else if st[i] in ['A'..'Z'] then inc(dem3)

else inc(dem4);

end;

writeln('So luong ky tu so la: ',dem1);

writeln('So luong ky tu thuong la: ',dem2);

writeln('So luong ky tu hoa la: ',dem3);

writeln('So luong ky tu dac biet la: ',dem4);

readln;

end.

uses crt;

var st:string;

begin

clrscr;

write('Nhap xau:'); readln(st);

writeln(length(st));

readln;

end.

uses crt;

var st,s:string;

    i,d,dem,kt,j,dem1:integer;

begin

clrscr;

write('Nhap xau:'); readln(s);

writeln('Xau vua nhap la: ',s);

d:=length(s);

for i:=1 to d do

  if s[i]=#32 then delete(s,i,1);

dem:=1;

st[1]:=s[1];

for i:=1 to d do

  begin

     kt:=0;

     for j:=1 to dem do

       if s[i]=st[j] then kt:=1;

     if kt=0 then

        begin

           inc(dem);

           st[dem]:=s[i];

        end;

  end;

for i:=1 to dem do

  begin

     dem1:=0;

     for j:=1 to d do

       if st[i]=s[j] then inc(dem1);

     writeln(st[i],' xuat hien ',dem1,' lan');

  end;

readln;

end.

1 tháng 9 2021

Program HOC24;

var s: string;

i: byte;

begin

write('Nhap xau: '); readln(s);

for i:=1 to n do if not(s[i] in ['0'..'9']) then write(s[i]);

readln

end.

uses crt;

var st:string;

i,d:integer;

begin

clrscr;

write('Nhap xau:'); readln(st);

d:=length(st);

writeln('Xau vua nhap la: ',st);

for i:=1 to d do 

  if st[i] in ['a'..'z'] then upcase(st[i]);

writeln(st);

readln;

end.

16 tháng 4 2023

program ChuyenXauSangChuThuong;
var
  str: string; 
  i: integer; 

begin
  write('Nhap mot xau ky tu: ');
  readln(str); 
  for i := 1 to Length(str) do
    str[i] := LowerCase(str[i]); 
  writeln('Xau ky tu chuyen thanh chu thuong la: ', str); 
end.

uses crt;

var s:string;

i,d:integer;

begin

clrscr;

write('Nhap xau S:'); readln(s);

d:=length(s);

for i:=1 to d do 

  s[i]:=upcase(s[i]);

writeln(s);

readln;

end.

8 tháng 5 2019

uses crt;
var ch,d:char;
    i,max:integer;
    s:string;
    a:array['A'..'Z']of integer;
begin
write('nhap xau:');readln(s);
for ch:='A'to'Z' do a[ch]:=0;
for i:=1 to length(s) do begin
s[i]:=upcase(s[i]);
a[s[i]]:=a[s[i]]+1;
end;
max:=a['A'];
for ch:='A'to'Z' do
if a[ch]>max then begin
max:=a[ch];
d:=ch;
end;
writeln('ki tu ',d,' xuat hien nhieu nhat:',max);
readln
end.

8 tháng 5 2019

program xoa_ky_tu;
uses crt;
var x,y:string;
    i,j,dem,max: integer;
    a:char;
BEGIN
clrscr;
write('nhap xau x : ');
readln(x);
y:=x;

for i:=1 to length(x) do
begin
j:=i+1;
repeat
if x[i]=x[j] then delete(x,j,1)
else
j:=j+1;
until (j>length(x));
end;
writeln('xau sau khi loai bo ki tu giong nhau la :',x);

max:=0;
a:=' ';
for i:=1 to length(x) do
begin
dem:=0;
for j:=1 to length(y) do
if x[i]=y[j] then
dem:=dem+1;
if dem>max then
begin
max:=dem;

a:=x[i];
end;
end;
writeln('ki tu ',a,' xuat hien ',max,' lan');

readln;
end.