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Program HOC24;
var s: string;
i: byte;
begin
write('Nhap xau: '); readln(s);
for i:=1 to length(s) do if (s[i]<>#32) and (s[i] in 'A'..'z') then
begin
upcase(s[i]); write(s[i]);
end;
readln
end.
#include <bits/stdc++.h>
using namespace std;
int d,i,d1;
string st;
int main()
{
getline(cin,st);
d=st.length();
while (st[0]==32)
{
st.erase(0,1);
}
while (st[d-1]==32)
{
st.erase(d-1,1);
}
d1=st.length();
for (i=0; i<d1; i++)
if ((st[i]==32) && st[i+1]==32)
{
st.erase(i,1);
i--;
}
cout<<st;
return 0;
}
uses crt;
var st:string;
begin
clrscr;
write('Nhap xau st:'); readln(st);
delete(st,3,4);
writeln('Xau sau khi xoa la: ',st);
readln;
end.
Program HOC24;
var s: string;
i: byte;
begin
write('Nhap xau :'); readln(s);
for i:=1 to length(s) do if s[i]<>'a' then write(s[i]);
readln
end.
uses crt;
var st:string;
i,d:integer;
begin
clrscr;
write('Nhap xau:'); readln(st);
d:=length(st);
for i:=1 to d do
if st[i]='a' then delete(st,i,1);
writeln(st);
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]=#32 then delete(st,i,1);
writeln('Xau moi la: ',st);
readln;
end.
Program HOC24;
var i: byte;
st,s: string;
begin
write('Nhap xau: '); readln(s);
while s[length(s)]=#32 do delete(s,length(s),1);
while s[1]=#32 do delete(s,1,1);
while pos(#32,s)<>0 do delete(s,pos(#32,s),1);
for i:=length(s) downto 1 do st:=st+s[i];
write('Xau nguoc lai sau khi da bo het dau cach: ',st);
readln
end.
*Cách khác:
uses crt;
var st:string;
i,d:integer;
begin
clrscr;
write('Nhap xau:'); readln(st);
d:=length(st);
for i:=1 to d do
if st[i]=#32 then delete(st,i,1);
for i:=length(st) downto 1 do
write(st[i]);
readln;
end.