program tim_chu_so;
uses crt;
var i,n,csln:longint;
k:integer;
a:array[1..1000]of longint;
st:string;
begin
clrscr;
write('nhap so n:');readln(n);
str(n,st);
val(st,a[i]);
csln:=a[1];
for i:=1 to length(st) do
if csln<a[i] then csln:=a[i];
writeln('chu so lon nhat cua so ',n,' la:',csln);
readln;
end.
Câu 1:
uses crt;
var n,i,d,x,y,max:integer;
st:string;
begin
clrscr;
write('Nhap n='); readln(n);
str(n,st);
d:=length(st);
max:=0;
for i:=1 to d do
begin
val(st[i],x,y);
if max<x then max:=x;
end;
writeln('Chu so lon nhat la: ',max);
readln;
end.
Câu 2:
uses crt;
var a,b,i,bcnn:longint;
begin
clrscr;
write('Nhap a='); readln(a);
write('Nhap b='); readln(b);
bcnn:=a*b;
for i:=a*b-1 downto 1 do
if (i mod a=0) and (i mod b=0) then
begin
if bcnn<i then bcnn:=i;
end;
writeln('Boi chung nho nhat la: ',bcnn);
readln;
end.
1).
progam chuso_max;
uses crt;
var n:longint;
max:byte;
begin
clrscr;
write(‘Nhap so: ‘); readln(n);
max:=0;
while n>0 do
begin
if n mod 10>max then max:=n mod 10;
n:=n div 10;
end;
write(‘Chu so lon nhat la: ‘,max);
readln;
end.
2).
uses crt;
var a,b,bcnn,i:longint;
begin
clrscr;
write('Nhap a='); readln(a);
write('Nhap b='); readln(b);
bcnn:=a*b;
for i:=a*b-1 downto 1 do
if (i mod a=0) and (i mod b=0) then
begin
if bcnn>i then bcnn:=i;
end;
writeln('Boi chung nho nhat la: ',bcnn);
readln;
end.