Bài $1$
Program Hotboy;
Uses crt;
Var A:array[1..100] of integer;
I,n : byte;
S:real;
Begin
Clrscr ;
S:=1;
Write('nhao so phan tu trong day'); readln(n);
For i:=1 to n do
Begin
Write('A[',i,']'); readln(A[i]);
End;
For i:=1 to n do
If A[i] mod 5 =0 then
S:=S* A[i] ;
Writeln('Tong cac phan tu chia het cho 5 trong mang la',S);
Readln
End.
Bài $2$
Program Hotboy;
Uses crt;
Var A:array[1..100] of integer;
I,n : byte;
S:real;
Begin
Clrscr ;
S:=0;
Write('nhao so phan tu trong day'); readln(n);
For i:=1 to n do
Begin
Write('A[',i,']'); readln(A[i]);
End;
For i:=1 to n do
If A[i] =< 5 then
S:=S+ A[i] ;
Writeln('Tong cac phan tu nho hon hoac bang 5 trong mang la',S);
Readln
End.
Bào $3$
Program Hotboy;
Uses crt;
Var A:array[1..100] of integer;
I,n : byte;
S:real;
Begin
Clrscr ;
S:=0;
Write('nhao so phan tu trong day'); readln(n);
For i:=1 to n do
Begin
Write('A[',i,']'); readln(A[i]);
End;
For i:=1 to n do
If A[i] >0 then
S:=S+ sqr(A[i]) ;
Writeln('Tong binh phuong cac phan tu duong trong mang la',S);
Readln
End.