Câu 1:
uses crt;
var s,i:integer;
begin
clrscr;
s:=0;
for i:=1 to 10 do
s:=s+i;
writeln('Tong cua 10 so tu nhien dau tien la: ',s);
readln;
end.
Câu 2:
uses crt;
var a:array[1..100]of integer;
i,n,dem:integer;
begin
clrscr;
write('Nhap n='); readln(n);
for i:=1 to n do
begin
write('A[',i,']='); readln(a[i]);
end;
dem:=0;
for i:=1 to n do
if a[i]>0 then inc(dem);
writeln('So luong phan tu duong la: ',dem);
readln;
end.
Câu 3:
uses crt;
var i,j:integer;
begin
clrscr;
for i:=1 to 9 do
begin
writeln('Bang nhan ',i,' la: ');
for j:=1 to 10 do
writeln(i,'*',j,'=',i*j);
delay(200);
end;
readln;
end.