uses crt;
var s:string;
dem,i:longint;
begin
readln(s);
dem:=0;
for i:=1 to length(s) do
if s[i] in ['0'..'9'] then dem:=dem+1;
if dem=0 then write('xau ko co so')
else write('xau do co ',dem,' so');
readln
end.
Lời giải :
program hotrotinhoc ;
const A = ' tinhhoc.inp ' ;
B = ' tinhoc.out ' ;
var F : text ;
s : string ;
i,dem : integer ;
begin
assign(F,A);
reset(F);
read(F,s);
close(F);
assign(F,B);
rewrite(F);
dem:=0;
for i:=1 to length(s) do
if s[i] in ['0'..'9'] then write(F,'Trong xau co ki tu so') else write(F,'Trong xau khong co ki tu so');
if s[i] in ['0'..'9'] then dem:=dem+1;
write(F,'trong xau co ',dem,' ki tu so');
end.