C Patterns¶
Pattern Type 01
#include <stdio.h>
int main()
{
// Loop from 1 to 10 and print each number
int n, row, col;
n = 4;
for (row = 1; row <= n; row++)
{
for (col = 1; col <= n ; col++)
{
printf("*");
}
printf("\n");
}
return 0;
}
Pattern Type 02
#include <stdio.h>
int main() {
int n, row, col;
n = 0;
printf("Give the value of number N= ");
scanf("%d", &n);
for (row=1; row<= n; row++){
for(col =1; col<= row; col++){
printf("*");
}
printf("\n");
}
return 0;
}
Pattern Type 03
#include <stdio.h>
int main() {
int n, row, col;
n = 0;
printf("Give the value of number N= ");
scanf("%d", &n);
for (row=1; row<= n; row++){
for(col = n; col >= row; col--){
printf("*");
}
printf("\n");
}
return 0;
}
Pattern Type 04
#include <stdio.h>
int main() {
int n, row, col;
n = 0;
printf("Give the value of number N= ");
scanf("%d", &n);
for (row=1; row<= n; row++){
for (col=1; col<=row; col++ ){
printf("%d", col);
}
printf("\n");
}
return 0;
}
Pattern Type 05
#include <stdio.h>
int main() {
int n, row, col, stars;
n = 0;
printf("Give the value of number N= ");
scanf("%d", &n);
for (row = 1; row <= 2*n - 1; row++){
if (row <= n){
stars = row;
}
else {
stars = 2*n - row ;
}
for (col = 1; col <= stars; col++){
printf("*");
}
printf("\n");
}
return 0;
}
Pattern Type 06
#include <stdio.h>
int main() {
int row, col, n;
n=5;
for (row=1; row<=n; row++){
// print spaces
for (col = 1; col <= n - row; col++) {
printf(" ");
}
for(col=1; col <= 2*row-1; col++ ){
printf("*");
}
printf("\n");
}
return 0;
}
#include <stdio.h>
int main() {
int n = 5;
int row, col;
// Upper half
for (row = 1; row <= n; row++) {
// spaces
for (col = 1; col <= row - 1; col++) {
printf(" ");
}
// stars
for (col = 1; col <= n - row + 1; col++) {
printf("* ");
}
printf("\n");
}
// Lower half
for (row = 1; row <= n; row++) {
// spaces
for (col = 1; col <= n - row; col++) {
printf(" ");
}
// stars
for (col = 1; col <= row; col++) {
printf("* ");
}
printf("\n");
}
return 0;
}
Pattern Type 09
#include <stdio.h>
int main() {
int row, col;
int n = 5;
for (row = 1; row <= n; row++) {
// leading spaces
for (col = 1; col <= n - row; col++) {
printf("🔴");
}
if (row == 1) {
printf("🟢");
}
else if (row < n) {
printf("🟢"); // left border
for (col = 1; col <= 2*row - 3; col++) {
printf("⭐"); // inner spaces
}
printf("🟢"); // right border
}
else {
for (col = 1; col <= 2*n - 1; col++) {
printf("🟢"); // bottom row full stars
}
}
printf("\n");
}
return 0;
}
Pattern Type 14
#include <stdio.h>
int main()
{
int n, row, col, stars, gaps;
n=5;
for (row=1; row<=n; row++){
gaps=row-1;
if(row==1){
//
for(col=1; col <= n+4; col++){
printf("🟢");
// printf("%d %d %d", row, n, col);
}
}
else{
// gaps
for(col=1; col <= gaps; col++){
printf("🔴");
}
if(row<n){
printf("🟢");
for(col=1; col<=2*(n-row) -1 ; col++){
printf("⭐");
}
printf("🟢");
} else{
for(col=1; col<=1; col++){
printf("🟢");
}
}
}
printf("\n");
}
}
Pattern Type 01
Pattern Type 00
#include <stdio.h>
int main() {
int n, row, col;
printf("N = ");
scanf("%d", &n);
for (row = 1; row<=n; row++) {
for (col=1; col <=row; col++) {
printf("-");
}
printf("\n");
}
return 0;
}
Pattern Questions
Print these patterns using loops:
1. *****
*****
*****
*****
*****
2. *
**
***
****
*****
3. *****
****
***
**
*
4. 1
1 2
1 2 3
1 2 3 4
1 2 3 4 5
5. *
**
***
****
*****
****
***
**
*
6. *
**
***
****
*****
7. *****
****
***
**
*
8. *
***
*****
*******
*********
9. *********
*******
*****
***
*
10. *
* *
* * *
* * * *
* * * * *
11. * * * * *
* * * *
* * *
* *
*
12. * * * * *
* * * *
* * *
* *
*
*
* *
* * *
* * * *
* * * * *
13. *
* *
* *
* *
*********
14. *********
* *
* *
* *
*
15. *
* *
* *
* *
* *
* *
* *
* *
*
16. 1
1 1
1 2 1
1 3 3 1
1 4 6 4 1
17. 1
212
32123
4321234
32123
212
1
18. **********
**** ****
*** ***
** **
* *
* *
** **
*** ***
**** ****
**********
19. * *
** **
*** ***
**** ****
**********
**** ****
*** ***
** **
* *
20. ****
* *
* *
* *
****
21. 1
2 3
4 5 6
7 8 9 10
11 12 13 14 15
22. 1
0 1
1 0 1
0 1 0 1
1 0 1 0 1
23. * *
* * * *
* * *
24. * *
** **
* * * *
* * * *
* ** *
* ** *
* * * *
* * * *
** **
* *
25. *****
* *
* *
* *
*****
26. 1 1 1 1 1 1
2 2 2 2 2
3 3 3 3
4 4 4
5 5
6
27. 1 2 3 4 17 18 19 20
5 6 7 14 15 16
8 9 12 13
10 11
28. *
* *
* * *
* * * *
* * * * *
* * * *
* * *
* *
*
29.
* *
** **
*** ***
**** ****
**********
**** ****
*** ***
** **
* *
30. 1
2 1 2
3 2 1 2 3
4 3 2 1 2 3 4
5 4 3 2 1 2 3 4 5
31. 4 4 4 4 4 4 4
4 3 3 3 3 3 4
4 3 2 2 2 3 4
4 3 2 1 2 3 4
4 3 2 2 2 3 4
4 3 3 3 3 3 4
4 4 4 4 4 4 4
32. E
D E
C D E
B C D E
A B C D E
33. a
B c
D e F
g H i J
k L m N o
34. E D C B A
D C B A
C B A
B A
A
35. 1 1
12 21
123 321
12344321