Var f1, f2: text;

  Tong, m, n, i: integer;

Begin

  assign(f1, ‘DULIEU.TXT’);

  reset(f1);

  assign(f2, ‘KETQUA’);

  rewrite(f2);

  Tong;= 0;

  read(f1, m, n);

  for i:= m to n do

  if i mod 2 = 0 then Tong:= Tong+i;

  write(f2, Tong);

  close(f1);

  close(f2);

End.

const fi='dulieu.txt';

fo='ketqua.txt';

var f1,f2:text;

m,n,i,t:integer;

begin

assign(f1,fi); reset(f1);

assign(f2,fo); rewrite(f2);

readln(f1,m,n);

t:=0;

for i:=m to n do 

 if i mod 2=0 then t:=t+i;

writeln(f2,t);

close(f1);

close(f2);

end.

Var f1, f2: text;

  Tong, m, n, i: integer;

Begin

  assign(f1, ‘DULIEU.TXT’);

  reset(f1);

  assign(f2, ‘KETQUA’);

  rewrite(f2);

  Tong;= 0;

  read(f1, m, n);

  for i:= m to n do

  if i mod 2 = 0 then Tong:= Tong+i;

  write(f2, Tong);

  close(f1);

  close(f2);

End.

Var f1, f2: text;

  Tong, m, n, i: integer;

Begin

  assign(f1, ‘DULIEU.TXT’);

  reset(f1);

  assign(f2, ‘KETQUA’);

  rewrite(f2);

  Tong;= 0;

  read(f1, m, n);

  for i:= m to n do

  if i mod 2 = 1 then Tong:= Tong+i;

  write(f2, Tong);

  close(f1);

  close(f2);

End.

#include <bits/stdc++.h>

using namespace std;

long long a,b;

int main()

{

freopen("dulieu.txt","r",stdin);

freopen("ketqua.txt","w",stdout);

cin>>a>>b;

cout<<max(a,b);

return 0;

}

#include <bits/stdc++.h>

using namespace std;

long long m,n,t,i;

int main()

{

freopen("dulieu.inp","r",stdin);

freopen("ketqua.out","w",stdout);

cin>>m>>n;

t=0;

for (i=m; i<=n; i++)

if (i%2!=0) t+=i;

cout<<t;

return 0;

}

const fi='dulieu.txt';

fo='ketqua.txt';

var f1,f2:text;

m,n,t,i:integer;

begin

assign(f1,fi); reset(f1);

assign(f2,fo); rewrite(f2);

readln(f1,m,n);

t:=0;

for i:=m to n do

if i mod 3=0 then t:=t+i;

writeln(f2,t);

close(f1);

close(f2);

end.

const fi='dulieu.txt';
fo='ketqua.txt';
var i,t:integer;
f1,f2:text;
a:array[1..9]of integer;
begin
assign(f1,fi); reset(f1);
assign(f2,fo); rewrite(f2);
t:=0;
for i:=1 to 9 do
begin
read(f1,a[i]);
t:=t+a[i];
end;
writeln(f2,t);
close(f1);
close(f2);
end.

a)

PROGRAM BAI1a;

VAR N, Tle, Tchan: integer;

BEGIN

          Write ('Nhap N =');

          Readln (N);

          If (N mod 2) = 0 Then

          Tle := N*((N - 2)/2 + 1)/2;

          Tchan := (N + 2)*((N - 2)/2 + 1)/2;

          If (N mod 2) = 1 Then

          Tle := (N + 1)*((N-1)/2 +1)/2;

          Tchan := (N + 1)*((N - 3)/2 + 1)/2;

          WRITELN ('Sle =', Sle, 'Schan =', Schan);

          READLN;

          END.