UNIT 3 : PATTERN PROGRAMS

Program 1: WAP to print below pattern.

*

* *

* * *

* * * *

#include<stdio.h>

int main()
{
        int i, j, n;
        

        printf("enter number of rows : ");
        scanf("%d", &n);

        for( i = 1 ; i <= n ; i++)
        {
                for( j = 1 ; j <= i ; j++)
                {
                        printf("*");
                }
                printf("\n");
        }
        return 0;
}

Output:

enter number of rows : 4

*

* *

* * *

* * * *

Program 2: WAP to print below pattern.

#include<stdio.h>

int main()

{

int i, j, n;

printf("enter number of rows : ");

scanf("%d", &n);

for(i=1;i<=n;i++)

{

for(j=1;j<=i;j++)

{

printf("%d",j);

}

printf(“\n”);

}

return 0;

}

Output:

enter number of rows : 5

1

1 2

1 2 3

1 2 3 4

1 2 3 4 5

Program 3: WAP to print below pattern.

#include<stdio.h>

int main()

{

int i, j, n;

printf("enter number of rows : ");

scanf("%d", &n);

for(i=1;i<=n;i++)

{

for(j=1;j<=i;j++)

{

printf("%d",i);

}

printf("\n");

}

return 0;

}

Output:

enter number of rows : 4

1

2 2

3 3 3

4 4 4 4

Program 4: WAP to print below pattern.

#include<stdio.h>

int main()

{

int i, j, n;

printf("enter number of rows : ");

scanf(“%d”, &n);

for(i=1;i<=n;i++)

{

for(j=1;j<=i;j++)

{

printf("%c", i+64);

}

printf(“\n”);

}

return 0;

}

Output:

enter number of rows : 4

A

B B

C C C

D D D D

Program 5: WAP to print below pattern.

#include<stdio.h>

int main()

{

int i, j, n;

printf("enter number of rows : ");

scanf("%d", &n);

for(i=1;i<=n;i++)

{

for(j=1;j<=i;j++)

{

printf("%c", j+64);

}

printf("\n");

}

return 0;

}

Output:

enter number of rows : 4

A

A B

A B C

A B C D

Program 6: WAP to print below pattern.

#include<stdio.h>

int main()

{

int i, j, n;

        printf("enter number of rows : ");

scanf("%d", &n);

for(i=1;i<=n;i++)

     {

for(j=1;j<=i;j++)

{

printf("%d", j%2);

}

printf("\n");

}

return 0;

}

Output:

enter number of rows : 4

1

1 0

1 0 1

1 0 1 0

Program 7: WAP to print below pattern.

#include<stdio.h>

int main()

{

int i, j, n;

        printf("enter number of rows : ");

scanf("%d", &n);

for(i=1;i<=n;i++)

{

for(j=1;j<=i;j++)

{

printf("%d", i%2);

}

printf("\n");

}

return 0;

}

Output:

enter number of rows : 4

1

0 0

1 1 1

0 0 0 0

Program 8: WAP to print below pattern.

#include<stdio.h>

int main()

{

int i, j, k=1, n;

printf("enter number of rows : ");

scanf("%d", &n);

for(i=1;i<=n;i++)

{

for(j=1;j<=i;j++)

{

printf("%d", k);

k++;

}

printf("\n");

}

return 0;

}

Output:

enter number of rows : 4

1

2 3

4 5 6

7 8 9 10

Program 9: WAP to print below pattern.

#include<stdio.h>

int main()

{

int i, j, n;

printf("enter number of rows : ");

scanf("%d", &n);

for(i=1;i<=n;i++)

{

for(j=n;j>=i;j--)

{

printf("*");

}

printf("\n");

}

return 0;

}

Output:

enter number of rows : 5

* * * * *

* * * *

* * *

* *

*

Program 10: WAP to print below pattern.

#include<stdio.h>

int main()

{

int i, j, n;

        printf("enter number of rows : ");

scanf("%d", &n);

for(i=1;i<=n;i++)

{

for(j=n;j>=i;j--)

{

printf("%c", i+96);

}

printf("\n");

}

return 0;

}

Output:

enter number of rows : 4

a a a a

b b b

c c 

d

Program 11: WAP to print below pattern.

#include<stdio.h>

int main()

{

int i, j, n;

        printf("enter number of rows : ");

scanf("%d", &n);

for(i=1;i<=n;i++)

{

for(j=n;j>=i;j--)

{

printf("%c", j+64);

}

printf("\n");

}

return 0;

}

Output:

enter number of rows : 4

D C B A 

D C B 

D C

D

Program 12: WAP to print below pattern.

#include<stdio.h>

int main()

{

int i, j, n;

printf("enter number of rows : ");

scanf("%d", &n);

for(i=n;i>=1;i--)

{

for(j=1;j<=i;j++)

{

printf("%d", j);

}

printf("\n");

}

return 0;

}

Output:

enter number of rows : 4

1 2 3 4

1 2 3

1 2

1

Program 13: WAP to print below pattern.

#include<stdio.h>

int main()

{

int i, j, n;

        printf("enter number of rows : ");

scanf("%d", &n);

for(i=n;i>=1;i--)

{

for(j=1;j<=i;j++)

{

printf("%d", i);

}

printf("\n");

}

return 0;

}

Output:

enter number of rows : 4

4 4 4 4

3 3 3

2 2

1

Program 14: WAP to print below pattern.

#include<stdio.h>

int main()

{

int i, j, n;

        printf("enter number of rows : ");

scanf("%d", &n);

for(i=n;i>=1;i--)

{

for(j=1;j<=i;j++)

{

printf("%c", 96+j);

}

printf("\n");

}

return 0;

}

Output:

enter number of rows : 4

a b c d

a b c

a b

a

Program 15: WAP to print below pattern.

#include<stdio.h>

int main()

{

int i, j, k, n;

        

        printf("enter number of rows : ");

scanf("%d", &n);

for(i=1;i<=n;i++)

{

for(k=n;k>i;k--)

{

printf(" ");

}

for(j=1;j<=i;j++)

{

printf("*");

}

printf("\n");

}

return 0;

}

Output:

enter number of rows : 4

      *

    **

  ***

****

Program 16: WAP to print below pattern.

#include<stdio.h>

int main()

{

int i, j, k, n;

printf("enter number of rows : ");

scanf("%d", &n);

for(i=1;i<=n;i++)

{

for(k=n;k>i;k--)

{

printf(" ");

}

for(j=1;j<=i;j++)

{

printf("* ");

}

printf("\n");

}

return 0;

}

Output:

enter number of rows : 5

     *

    * * 

   * * *

  * * * *

 * * * * *

Program 17: WAP to print below pattern.

#include<stdio.h>

int main()

{

int i, j, k, n;

printf("enter number of rows : ");

scanf("%d", &n);

for(i=1;i<=n;i++)

{

for(k=n;k>i;k--)

{

printf(" ");

}

for(j=1;j<=i;j++)

{

printf("%d", i);

}

printf("\n");

}

        return 0;

}

Output:

enter number of rows : 5

    1

   2 2

  3 3 3

 4 4 4 4

5 5 5 5 5