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const fi='dl.dat';

fo='kq.dat';

var f1,f2:text;

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

i,n,dem1,dem2,t1,t2:integer;

begin

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

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

readln(f1,n);

for i:=1 to n do read(f1,a[i]);

dem1:=0;

dem2:=0;

for i:=1 to n do 

begin

if a[i] mod 2=0 then inc(dem1)

else inc(dem2);

end;

t1:=0;

t2:=0;

for i:=1 to n do 

begin

if (a[i] mod 6=0) then t1:=t1+a[i];

if (a[i] mod 9=0) and (a[i] mod 2<>0) then t2:=t2+a[i];

end;

writeln(f2,dem1,' ',dem2);

writeln(f2,t1);

writeln(f2,t2);

close(f1);

close(f2);

end.

21 tháng 2 2022

const fi='dl.dat';

fo='kq.dat';

var f1,f2:text;

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

i,n,dem1,dem2,t1,t2:integer;

begin

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

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

readln(f1,n);

for i:=1 to n do read(f1,a[i]);

dem1:=0;

dem2:=0;

for i:=1 to n do 

begin

if a[i] mod 2=0 then inc(dem1)

else inc(dem2);

end;

t1:=0;

t2:=0;

for i:=1 to n do 

begin

if (a[i] mod 6=0) then t1:=t1+a[i];

if (a[i] mod 9=0) and (a[i] mod 2<>0) then t2:=t2+a[i]

end

writeln(f2,dem1,' ',dem2)

writeln(f2,t1)

writeln(f2,t2)

close(f1)

close(f2)

;-;

#include <bits/stdc++.h>

using namespace std;

long long n,i,x;

//chuongtrinhcon

bool ktnt(long long x)

{

if (x<2) return false;

for (int i=2; i*i<=x; i++)

if (x%i==0) return(false);

return true;

}

//chuongtrinhchinh

int main()

{

freopen("dl.dat","r",stdin);

freopen("kq.dat","w",stdout);

cin>>n;

dem=0;

for (i=1; i<=n; i++)

{

cin>>x;

if (ktnt(x)) dem++;

}

cout<<dem;

return 0;

}

uses crt;

const fi='songuyen.inp';

fo='songuyen2.out';

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

i,n,t1:integer;

f1,f2:text;

begin

clrscr;

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

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

readln(f1,n);

for i:=1 to n do readln(f1,a[i]);

t1:=0;

for i:=1 to n do if a[i] mod 2<>0 then t1:=t1+a[i];

writeln(t1);

writeln(f2,t1);

for i:=1 to n do 

  if a[i] mod 2<>0 then write(a[i]:4);

close(f1);

close(f2);

readln;

end.

const fi='bai1.inp';

fo='bai1.out';

var f1,f2:text;

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

n,i,t,dem:integer;

begin

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

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

readln(f1,n);

for i:=1 to n do 

  read(f1,a[i]);

t:=0;

dem:=0;

for i:=1 to n do 

  begin

if a[i] mod 2<>0 then t:=t+a[i]

else inc(dem);

end;

writeln(f2,'Tong cac so le la: ',t);

writeln(f2,'So so chan la: ',dem);

close(f1);

close(f2);

end.

22 tháng 7 2021

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 a[1000],i,n,dem;

int main()

{

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

freopen("dl.dat","w",stdout);

cin>>n;

for (i=1; i<=n; i++) cin>>a[i];

dem=0;

for (i=1; i<=n; i++)

if (a[i]==10) dem++;

cout<<dem;

return 0;

}

#include <bits/stdc++.h>

using namespace std;

long long n,i,t;

int main()

{

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

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

cin>>n;

t=0;

for (i=1; i<=n; i++)

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

cout<<t;

return 0;

}