#include <bits/stdc++.h>

using namespace std;

double a,b,c;

int main()

{

cin>>a>>b>>c;

cout<<fixed<<setprecision(2)<<(a+b+c)/3;

return 0;

}

cái j đây bạn

#include <bits/stdc++.h>

using namespace std;

long long n,i,x,s,t;

int main()

{

cin>>n;

s=1;

t=0;

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

{

cin>>x;

t+=x;

s*=x;

}

cout<<t<<endl;

cout<<s;

return 0;

}

#include <bits/stdc++.h>

using namespace std;

long long a[10],n=10,i,ln;

int main()

{

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

ln=a[1];

for (i=1; i<=n; i++) ln=max(ln,a[i]);

cout<<ln<<endl;

if (ln%2==0) cout<<"Phai";

else cout<<"Khong phai";

return 0;

}

program bt;
uses crt;
var i, max : integer;
a : array[1..10] of integer;
begin
        clrscr;
        for i:=1 to 10 do begin
         write('Nhap so thu ',i,': '); readln(a[i]);
        end;
        max := 0;
        for i:=1 to 10 do if a[i] > max then max := a[i];
        if (max mod 2 = 0) then write(max,' la so lon nhat va la so chan')
        else write(max,' la so lon nhat va la so le');
        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;

}

bn làm sai r ko bt hc tin ah!

uses crt;

var i,n:integer;

s:real;

begin

clrscr;

readln(n);

s:=0;

for i:=1 to n do 

 s:=s+(i/(i*sqr(i+5)));

writeln(s:4:2);

readln;

end.

#include <bits/stdc++.h>

using namespace std;

long long i,t;

int main()

{

t=0;

for (i=1; i<=30; i++) t+=i;

cout<<t;

return 0;

}

repeat 6[ repeat 24[fd 50 rt 360/24] rt 360/6]
là như vậy đó ok

#include <bits/stdc++.h>

using namespace std;

long long a,b;

int main()

{

cin>>a>>b;

cout<<max(a,b);

return 0;

}

uses crt;

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

n,i,x,t,dem:integer;

begin

clrscr;

readln(n);

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

readln(x);

dem:=0;

t:=0;

for i:=1 to n do 

  if a[i]>x then

begin

write(a[i]:4);

t:=t+a[i];

dem:=dem+1;

end;

writeln;

writeln(t);

writeln(dem);

readln;

end.

#include <bits/stdc++.h>

using namespace std;

long long i,s;

int main()

{

s=0;

for (i=1; i<=100; i++) s+=i;

cout<<s;

return 0;

}