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#include <bits/stdc++.h>
using namespace std;
long long a,b;
int main()
{
freopen("sn.inp","r",stdin);
freopen("cn.out","w",stdout);
cin>>a>>b;
cout<<a*b;
return 0;
}
const fi='songuyen.inp';
fo='tong.out';
var f1,f2:text;
a:array[1..100]of integer;
i,n,t:integer;
begin
assign(f1,fi); reset(f1);
assign(f2,fo); rewrite(f2);
n:=0;
while not eoln(f1) do
begin
n:=n+1;
read(f1,a[n]);
end;
t:=0;
for i:=1 to n do
if a[i] mod 2=0 then t:=t+a[i];
writeln(f2,t);
close(f1);
close(f2);
end.
uses crt;
const fi='ketqua.out';
var f1:text;
a:array[1..100]of integer;
i,n,min:integer;
begin
clrscr;
assign(f1,fi); rewrite(f1);
write('Nhap n='); readln(n);
for i:=1 to n do
begin
write('A[',i,']='); readln(a[i]);
end;
min:=a[1];
for i:=1 to n do
if min>a[i] then min:=a[i];
writeln(f1,min);
close(f1);
readln;
end.
Uses crt;
var f1,f2:text;
i,n,tong,tongchan,dem:integer;
tb:real;
Begin
clrscr;
Assign(f1,'DAYSO.txt');
Assign(f2,'KETQUA.txt');
reset(f1);dem:=0;tong:=0;tongchan:=0;
While Not EOF(f1) do
Begin
read(f1,i);
inc(tong,i);
If i mod 2 = 0 then
begin
inc(dem);
inc(tongchan,i);
end;
End;
tb:=tongchan/dem;
close(f1);
rewrite(f2);
writeln(f2,tong);
writeln(f2,tongchan);
writeln(f2,tb:0:2);
close(f2);
write(tong);
readln;
End.
#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;
}