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const fi='vao.inp';
fo='ra.out';
var f1,f2:text;
st:string;
i,d:integer;
begin
assign(f1,fi); reset(f1);
assign(f2,fo); rewrite(f2);
readln(f1,st);
d:=length(st);
for i:=1 to d do
if st[i]='a' then delete(st,i,1);
writeln(f2,st);
close(f1);
close(f2);
end.
Bài 2:
#include <bits/stdc++.h>
using namespace std;
string st;
int d;
int main()
{
getline(cin,st);
d=st.length();
cout<<d;
return 0;
}
Bài 1:
Var so,i,n,dem:integer;
Begin
Write('Nhap so luong so n = ');readln(n);
For i:=1 to n do
Begin
Write('Nhap so thu ',i);readln(so);
If so mod 2 = 0 then dem:=dem+1;
End;
Write('Co ',dem,' so chan');
Readln;
End.
Bài 2:
Var st:string;
Begin
Write('Nhap vao xau ki tu ');readln(st);
Write(' Xau vua nhap co do dai la ',length(st));
Readln;
End.
uses crt;
const fi='xau.txt';
var f1:text;
s:string;
i,d,kt:integer;
begin
clrscr;
assign(f1,fi); reset(f1);
readln(f1,s);
d:=length(s);
kt:=0;
for i:=1 to d do
if st[i]<>st[d-i+1] then kt:=1;
if kt=0 then writeln('Xau doi xung')
else writeln('Xau khong doi xung');
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.
const fi='input.txt';
fo='output.txt';
var f1,f2:text;
st:string[125];
a:array[1..125]of string;
i,d,dem,kt,j:integer;
begin
assign(f1,fi); reset(f1);
assign(f2,fo); rewrite(f2);
readln(f1,st);
d:=length(st);
dem:=1;
a[1]:=st[1];
for i:=1 to d do
begin
kt:=0;
for j:=1 to dem do
if a[j]=st[i] then kt:=1;
if kt=0 then
begin
inc(dem);
a[dem]:=st[i];
end;
end;
for i:=1 to dem do
begin
dem1:=0;
for j:=1 to d do
if a[i]=st[j] then inc(dem1);
writeln(f2,a[i],' xuat hien ',dem1,' lan');
end;
close(f1);
close(f2);
end.