Program HOC24;

var n,i: integer;

t: longint;

Begin

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

t:=0;

for i:=1 to n do t:=t+i;

if t mod 2=0 then write('Tong la so chan') else write('Tong la so le');

readln

end.

n = int(input('nhap n'))

s = 0

for i in range(0,n):

     s = s+i

print('tong cua day tu 0 den '+n+'la'+s)

if s%2 == 0:

     print('s la so chan')

else:

     print('s la so le')

tự làm là nhanh nhất

ai đòng ý xin 1 ý kiến

1.

program tinhtong;

uses crt;

var s,i,n:integer;

begin

s:=0;

for i:=1 to 10 do s:=s+1;

writeln ('tong cua s=',s);

readln

end.

2.

program tinhtong;

uses crt;

var i,L,s:integer;

begin

write('nhap gia tri L='); readln(L);

s:=0;

for i:=1 to L do s:=s+1;

writeln('tong cua s=',s);

readln

end.

var n,i,s:longint; begin write('nhap so n=');readln(n); s:=0; for i:=1 to n do s:=s+i; writeln(' tong n so nguyen la:',s); readln; end.

Câu 1: 

#include <bits/stdc++.h>

using namespace std;

long long n,i,s;

int main()

{

cin>>n;

s=0;

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

cout<<s;

return 0;

}

#include <bits/stdc++.h>

using namespace std;

long long n,i,t;

int main()

{

cin>>n;

t=1;

for (int i=1; i<=n; i++) t=t*i;

cout<<t;

return 0;

}

tham khảo

TK

Var i ,n : integer;

S , T : real;

Begin

write ('n=') ; read (n) ;

S:= 0;

T:= 1;

For i:= 1 to n do

S:= S + i;

T:= T * i;

Writeln (' Tong cua ' ,n,' so dau tien la' , S );

Writeln (' Tich của ' ,n,' so dau tien la' , T );

Readln;

End.

1:

#include <bits/stdc++.h>

using namespace std;

long long dem,i,n,x;

int main()

{

cin>>n;

dem=0;

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

{

cin>>x;

if (x%2==0) dem++;

}

cout<<dem;

return 0;

}

Câu 2: 

#include <bits/stdc++.h>

using namespace std;

long long x,n,i,t;

int main()

{

cin>>n;

t=0;

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

{

cin>>x;

if (x%3==0) t+=x;

}

cout<<t;

return 0;

}

tham khảo

Var i ,n : integer;

S , T : real;

Begin

write ('n=') ; read (n) ;

S:= 0;

T:= 1;

For i:= 1 to n do

S:= S + i;

T:= T * i;

Writeln (' Tong cua ' ,n,' so dau tien la' , S );

Writeln (' Tich của ' ,n,' so dau tien la' , T );

Readln;

End.

#include <bits/stdc++.h>

using namespace std;

long long i,n,t;

int main()

{

cin>>n;

t=0;

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

cout<<t;

return 0;

}