Bài `1`
Program Hotboy;
Uses crt;
Var i,n,T: Integer;
Begin
clrscr;
Write('Nhap so n tu ban phim');
Readln(n);
For i:=1 to n do
If ( i mod 2=0) then S:=S+i;
Write('Tong can tim la: ',T);
Readln;
End.
Bài `2`
Program Hotboy;
Uses crt;
var S:longint;
i,n : integer;
Begin
Clrscr;
i:=1; S:=1;
Write('Nhap so n tu ban phim '); Readln(n);
While i<=n do
Begin
S:=S*i; inc(i)
End;
Write('Tich la: ',S);
Readln
End.
Bài `3`
Progarm Hotboy;
Uses crt;
Var i,S:longint;
Begin
Clrscr;
While i>34 and i<=77 do
begin
S:=S+i; inc(i);
End;
Write('Tong la: ',S);
Readln
End.