uses crt;

var a,b:integer;

begin

clrscr;

repeat

write('Nhap a='); readln(a);

write('Nhap b='); readln(b);

until (a>0) and (b>0);

if a>b then writeln(a,' la so lon hon')

else if a<b then writeln(b,' la so lon hon')

else writeln('Hai so bang nhau');

readln;

end.

Mình dùng C++ nên div = /; mod = % nha bn!

#include <bits/stdc++.h>
using namespace std;
int main() {
int a, S;
cin >> a;
S=0;
while(a>0)
{
    S+=a%10, a=a/10;
}
cout << S << endl;
return 0;
}

Chúc bn học tốt!

uses crt;

var a,vtmax,vtmin:array[1..100]of integer;       

 n,i,max,min,dem,t,dem1,t1,dem2,t2,dem3,t3,dem4,t4,k:integer;

begin

clrscr;

write('Nhap n='); readln(n);

for i:=1 to n do 

begin     

write('A[',i,']='); readln(a[i]); 

end;

max:=a[1];

for i:=1 to n do 

if max<a[i] then max:=a[i];

writeln('So lon nhat trong day la: ',max);

dem:=0;

t:=0;

for i:=1 to n do 

if max=a[i] then     

begin       

inc(dem);

t:=t+a[i];       

vtmax[dem]:=i;     

end;

if dem>1 then   

begin     

writeln('Tong cac so max la: ',t);     

writeln('Cac vi tri co so max la: ');     

for i:=1 to dem do       

write(vtmax[i]:4);   

end;

min:=a[1];

for i:=1 to n do 

if min>a[i] then min:=a[i];

writeln('So nho nhat trong day la: ',min);

dem1:=0;

t1:=0;

for i:=1 to n do 

if min=a[i] then     

begin       

inc(dem1);       

t1:=t1+a[i];       

vtmin[dem1]:=i;     

end;

if dem1>1 then   

begin     

writeln('Tong cac so min la: ',t1);     

writeln('Cac vi tri co so min la: ');     

for i:=1 to dem1 do       

write(vtmin[i]:4);   

end;

write('Nhap k='); readln(k);

dem2:=0;

t2:=0;

for i:=1 to n do 

if (i mod 2=0) and (a[i] mod k=0) then     

begin       

dem2:=dem2+1;       

t2:=t2+a[i];     

end;

writeln('So phan tu o vi tri chan trong day la boi cua ',k,' la: ',dem2);

writeln('Tong cac so o vi tri chan trong day la boi cua ',k,' la: ',t2);

dem3:=0;

t3:=0;

for i:=1 to n do 

if (i mod 2=1) and (k mod a[i]=0) then     

begin       

inc(dem3);       

t3:=t3+a[i];     

end;

writeln('So phan tu o vi tri le trong day la uoc cua ',k,' la: ',dem3);

writeln('Tong cac so o vi tri le trong day la uoc cua ',k,' la: ',t3);

dem4:=0;

t4:=0;

for i:=1 to n do 

if (a[i]+k=1) or (a[i]=k+1) then     

begin       

inc(dem4);       

t4:=t4+a[i];     

end;

writeln('So phan tu la anh em cua ',k,' trong day la: ',dem4);

writeln('Tong cac phan tu la anh em cua ',k,' trong day la: ',t4);

readln;

end.

câu 1

Program Nguyen_to;

Var n,i:integer;

Function NT(n:integer):Boolean;

Var ok: Boolean;

i: integer;

Begin ok:=true;

for i:=2 to n-1 do if (n mod i)= 0 then ok:=ok and false;

if n < 2 then NT:=false else NT:=ok;

End;

Begin Write('Nhap n: ');

Readln(n); i:=n;

Repeat i:=i+1;

Until NT(i);

Write('So nguyen to nho nhat lon hon ',n, 'la: ',i);

Readln End.

câu 2

uses crt;

const so: set of char=['0','1','2','3','4','5','6','7','8','9'];

var a:array[1..100] of integer;

st,b:string;

c,l,i,n,j:integer;

s, Max: integer;

begin clrscr;

write('Nhap xau:');

readln(st);

l:=length(st);

i:=1;

n:=0;

repeat if (st[i] in so) then begin b:=''

repeat b:=b+st[i];

inc(i);

until (not(st[i] in so)) or (i>l);

inc(n);

val(b,a[n],c);

end;

inc(i);

until i>l;

Max:=a[1];

for i:=2 to n do If Max<A[i] Then Max:=A[i];

Writeln('Phan tu lon nhat cua mang:', Max);

readln;

end.

Program HOC24;

var i,n,max: integer;

a: array[1..1000] of integer;

begin

write('Nhap n: '); readln(n);

i:=1; max:=-1;

while i<=n do

begin

write('Nhap so thu ',i,': '); readln(a[i]);

if a[i]>max then max:=a[i];

i:=i+1;

end;

write('So lon nhat la: ',max);

readln

end.

#include <bits/stdc++.h>

using namespace std;

long long a,b;

//chuongtrinhcon

long long ucln(long long a,long long b)

{

if (b==0) return(a);

else return(ucln(b,a%b));

}

//chuongtrinhchinh

int main()

{

cin>>a>>b;

cout<<ucln(a,b);

return 0;

}