Penulisan LOOPING

Contoh penulisan proses LOOP

1. Statement While
2. Statement Do…….While
3. Statement FOR
1. Statement FOR Positif
2. Statement FOR Negatif
3. Statement FOR berasarang (Nested Loop)

1. Statement While

int bil=1;

while(bil<=5)

cout<

++bil; bil = bil + 1

Output: 12345

Jwb :

Bil = 1	Bil<=5		Cetak bil	Bil= bil + 1
1	1<=5		1	2
2	2<=5		2	3
3	3<=5		3	4
4	4<=5		4	5
5	5<=5		5	6
6	6<=5

2. Statement Do….While

int bil=2;

do

cout<

bil+=2;

while (bil>=10);

output: 2 4 6 8 10

jwb:

Bil=2	Cetak bil	Bil + 2	Bil>=10	Y/T
2	2	4	4>=10	T
4	4	6	6>=10	T
6	6	8	8>=10	T
8	8	10	10>=10	T
10	10	12	12>=10	Y

3. Statement FOR

Contoh 1.a

#include

Void main()

{

Int I,N;

N = 45;

I = 1;

While (I<=5);

{

Printf (“\n%i,”N);

N = N + 5

I = I + 1

}

}

Output: 45 50 55 60 65

Jwb:

N = 45	I = 1	I<=5	Y/T	Cetak N	N = N + 5	I = I + 1
45	1	1<=5	Y	45	50	2
50	2	2<=5	Y	50	55	3
55	3	3<=5	Y	55	60	4
60	4	4<=5	Y	60	65	5
65	5	5<=5	Y	65	70	6
70	6	6<=5	T

Contoh 1.b

#include

Void main()

{

Int I,N;

N = 45;

I = 1;

While (I<=5);

{

N = N + 5

I = I + 1

}

Printf (“\n%i,”N);

}

Output: 70

Jwb :

N = 45	I = 1	I<=5	Y/T	N = N + 5	I = I + 1	Cetak N
45	1	1<=5	Y	50	2
50	2	2<=5	Y	55	3
55	3	3<=5	Y	60	4
60	4	4<=5	Y	65	5
65	5	5<=5	Y	70	6
70	6	6<=5	T			70

Contoh 1.c

#include

Void main()

{

Int I,N;

N = 45;

I = 1;

While (I<=5);

{

N = N + 5

Printf (“\n%i,”N);

I = I + 1

}

}

Output: 45 50 55 60 65

Jwb:

N = 45	I = 1	I<=5	Y/T	N = N + 5	Cetak N	I = I + 1
45	1	1<=5	Y	50	45	2
50	2	2<=5	Y	55	50	3
55	3	3<=5	Y	60	55	4
60	4	4<=5	Y	65	60	5
65	5	5<=5	Y	70	65	6
70	6	6<=5	T

Contoh 2

#include

Void main()

{

Int I,N;

N = 10;

I = 10;

While (N<=100);

{

N = N + I

Printf (“\n%i,”N);

I = I + 5;

}

}

Output: 20 35 55 80 110

Jwb:

N = 10	I = 1	N<=100	Y/T	N = N + 1	Cetak N	I = I + 5
10	10	10<=100	Y	20	20	15
20	15	15<=100	Y	35	35	20
35	20	20<=100	Y	55	55	25
55	25	25<=100	Y	80	80	30
80	30	30<=100	Y	110	110	35
110	35	35<=100	T

Contoh 3.a

#include

Void main()

{

Int I,N;

N = 10;

X = 10;

T = 0;

While (T<=100);

{

T = T + N;

N = N + X;

X = X + 5;

}

Printf (“\n%i,”T);

}

Output: 120

Jwb:

N=10	X=10	T=0	T<=100	Y/T	T =T+N	N =N+X	X=X+5	Cetak T
10	10	0	0<=100	Y	10	20	15
20	15	10	10<=100	Y	30	35	20
35	20	30	30<=100	Y	65	55	25
55	25	65	65<=100	Y	120	80	30
80	30	120	120<=100	T				120

Contoh 3.b

#include

Void main()

{

Int I,N;

N = 10;

X = 10;

T = 0;

While (T<=100);

{

T = T + N;

Printf (“\n%i,”T);

N = N + X;

X = X + 5;

}

}

Output: 10 30 65 120

Jwb:

N=10	X=10	T=0	T<=100	Y/T	T =T+N	Cetak T	N =N+X	X=X+5
10	10	0	0<=100	Y	10	10	20	15
20	15	10	10<=100	Y	30	30	35	20
35	20	30	30<=100	Y	65	65	55	25
55	25	65	65<=100	Y	120	120	80	30
80	30	120	120<=100	T

Nested FOR

Contoh 1.a

int I.J;

for (I = 1, 1<=3;I++);

{

for(J=1;J<=5;J++);

{

Printf(“\n%i”,I);

}

}

Output: 1 1 1 1 1

2 2 2 2 2

3 3 3 3 3

Jwb:

I=1	I<=3	Y\T	J=1	J<=5	Y\T	Cetak I	J++	I++
1	1<=3	Y	1	1<=5	Y	1	2
			2	2<=5	Y	1	3
			3	3<=5	Y	1	4
			4	4<=5	Y	1	5
			5	5<=5	Y	1	6
			6	6<=5	T			2
2	2<=3	Y	1	1<=5	Y	2	2
			2	2<=5	Y	2	3
			3	3<=5	Y	2	4
			4	4<=5	Y	2	5
			5	5<=5	Y	2	6
			6	6<=5	T			3
3	3<=3	Y	1	1<=5	Y	3	2
			2	2<=5	Y	3	3
			3	3<=5	Y	3	4
			4	4<=5	Y	3	5
			5	5<=5	Y	3	6
			6	6<=5	T			4
4	4<=3	T

Contoh 1.b

int I.J;

for (I = 1, 1<=3;I++);

{

for(J=1;J<=5;J++);

{

Printf(“\n%i”,J);

}

}

Output: 1 1 1

2 2 2

3 3 3

4 4 4

5 5 5

Jwb:

I=1	I<=3	Y\T	J=1	J<=5		Y\T	Cetak J	I++		J++
1	1<=3	Y	1	1<=5		Y	1	2
2	2<=3	Y					1	3
3	3<=3	Y					1	4
4	4<=3	T								2
1	1<=3	Y	2	2<=5		Y	2	2
2	2<=3	Y					2	3
3	3<=3	Y					2	4
4	4<=3	T								3
1	1<=3	Y	3	3<=5		Y	3	2
2	2<=3	Y					3	3
3	3<=3	Y					3	4
4	4<=3	T								4
1	1<=3	Y	4	4<=5		Y	4	2
2	2<=3	Y					4	3
3	3<=3	Y					4	4
4	4<=3	T								5
1	1<=3	Y	5	5<=5		Y	5	2
2	2<=3	Y					5	3
3	3<=3	Y					5	4
4	4<=3	T							6
			6		6<=5	T