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Perhatikan potongan program di bawah ini!
var i,j,x: integer; begin x := 0; for i:=1 to 5 do begin for j:= 5 downto 1 do begin x := x + i + j; end; end; writeln(x); end.Apakah keluaran dari program di atas?
Nilai x terakhir adalah penjumlahan semua nilai i dan j yang pernah muncul.
Setiap nilai i, perulangan j akan menambahkan x sebanyak 5 + 4 + 3 + 2 + 1 = 15 + 5*i.
Karena nilai i dimulai dari 1 sampai 5, maka x = 5*(15) + 5*(1 + 2 + 3 + 4 + 5) = 150.
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