Contoh Soal Olimpiade Komputer materi WHILE DO

potongan prgram dibawah untuk soal 1 -2

c := 0
d := 0
while (a>b) do
begin
a := a – b;
c := c + 1;
d := d + b;
end;
write(c,’,’,d);

1. jika nilai  a = 15, b = 4 maka keluaran dari program diatas adalah..
a. 3 , 12
b. 1 , 4
c. 0 , 0
d. 6 , 23
e. 2 , 8

Pembahasan
nilai awal a = 15, b = 4, c = 0, d = 0
kondisi a > b
—–>> 15 > 4 (True), maka
a = 15 – 4
= 11
c = 0 + 1
= 1
d = 0 + 4
= 4
—–>> 11 > 4 (True), maka
a = 11 – 4
= 7
c = 1 + 1
= 2
d = 4 + 4
= 8
—–>> 7 > 4 (True), maka
a = 7 – 4
= 3
c = 2 + 1
= 3
d = 8 + 4
= 12
—–>> 3 > 4 (False), maka perulangan dihentikan.
Jadi nilai c = 3, d = 12
2. jika nilai  a = 34, b = 11 maka keluaran dari program diatas adalah..
a. 3 , 12
b. 1 , 4
c. 0 , 0
d. 6 , 23
e. 2 , 8

Pembahasan
nilai awal a = 34, b = 11, c = 0, d = 0
kondisi a > b
—–>> 34 > 11 (True), maka
a = 34 – 11
= 23
c = 0 + 1
= 1
d = 0 + 11
= 11
—–>> 23 > 11 (True), maka
a = 23 – 11
= 12
c = 1 + 1
= 2
d = 11 + 11
= 22
—–>> 12 > 11 (True), maka
a = 12 – 11
= 1
c = 2 + 1
= 3
d = 22 + 11
= 33
—–>> 1 > 11 (False), maka perulangan dihentikan.
Jadi nilai c = 3, d = 33

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