Program BTT;Uses crt;Var n,i: longint; s: qword;Begin Clrscr; Write(‘Nhap n: ‘); Readln(n); s:=0; For i:=1 to n do s:=s+sqr(i); Write(‘Tong la: ‘,s); ReadlnEnd. Bình luận
Program BTT;
Uses crt;
Var n,i: longint;
s: qword;
Begin
Clrscr;
Write(‘Nhap n: ‘); Readln(n);
s:=0;
For i:=1 to n do
s:=s+sqr(i);
Write(‘Tong la: ‘,s);
Readln
End.