20 Different Number Patterns Programs in C

 

Basically, the Number Pattern program in C is the series of numbers that are arranged in a particular order. These patterns are created by arranging the numbers which are similar to the star patterns in C.

For Example:

1
1 2
1 2 3
1 2 3 4
1 2 3 4 5

Every interview starts with pattern programs. So it is mandatory to learn the logic behind these number patterns. These patterns are best suited to increase your logical thinking ability.

We have structured these pattern programs in such a way that the beginners and the professionals can easily understand and practice on their own.

So after learning these programs, your duty is to understand the logic behind each pattern. Don’t go fast spend time understanding each program that will be beneficial for you.

So without wasting time, we will start learning number patterns one by one. If you have any doubt then please feel free to express your doubt in the comment section below.

Number Pattern Programs in C

Example #1

1
1 2
1 2 3
1 2 3 4
1 2 3 4 5
1 2 3 4 5 6

Program:

C

1

//Learnprogramo

2

#include<stdio.h>

3

#include<conio.h>

4

int main()

5

{

6

int n, i, j;

7

printf("Enter the number of rows: ");

8

scanf("%d",&n);

9

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

10

{

11

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

12

{

13

printf("%d",j);

14

}

15

printf("\n");

16

}

17

return 0;

18

}

Example #2

1
2 2
3 3 3
4 4 4 4
5 5 5 5 5
6 6 6 6 6 6

Program:

C

1

//Learnprogramo

2

#include<stdio.h>

3

#include<conio.h>

4

int main()

5

{

6

int n, i, j;

7

printf("Enter the number of rows: ");

8

scanf("%d",&n);

9

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

10

{

11

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

12

{

13

printf("%d",i);

14

}

15

printf("\n");

16

}

17

return 0;

18

}

Example #3

1 2 3 4 5 6
1 2 3 4 5
1 2 3 4
1 2 3
1 2
1

Program:

C

1

//Learnprogramo

2

#include<stdio.h>

3

#include<conio.h>

4

int main()

5

{

6

int n, i, j;

7

printf("Enter the number of rows: ");

8

scanf("%d",&n);

9

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

10

{

11

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

12

{

13

printf("%d",j);

14

}

15

printf("\n");

16

}

17

return 0;

18

}

Example #4

1 1
1 2 2 1
1 2 3 3 2 1
1 2 3 4 4 3 2 1
1 2 3 4 5 5 4 3 2 1
1 2 3 4 5 6 6 5 4 3 2 1

Program:

C

1

//Learnprogramo

2

#include<stdio.h>

3

#include<conio.h>

4

int main()

5

{

6

int n, i, j, k;

7

printf("Enter the number of rows: ");

8

scanf("%d",&n);

9

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

10

{

11

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

12

{

13

if(j <= i)

14

printf("%d",j);

15

else

16

printf(" ");

17

}

18

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

19

{

20

if(j <= i)

21

printf("%d",j);

22

else

23

printf(" ");

24

}

25

printf("\n");

26

}

27

return 0;

28

}

Example #5

1
2 3
4 5 6
7 8 9 10
11 12 13 14 15
16 17 18 19 20 21

Program:

C

1

//Learnprogramo

2

#include<stdio.h>

3

#include<conio.h>

4

int main()

5

{

6

int n, i, j, c = 1;

7

printf("Enter the number of rows: ");

8

scanf("%d",&n);

9

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

10

{

11

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

12

{

13

printf("%d ", c);

14

++c;

15

}

16

printf("\n");

17

}

18

return 0;

19

}

Example #6

1
1 2
1 2 3
1 2 3 4
1 2 3 4 5
1 2 3 4 5 6
1 2 3 4 5
1 2 3 4
1 2 3
1 2
1

Program:

C

1

//Learnprogramo

2

#include<stdio.h>

3

#include<conio.h>

4

int main()

5

{

6

int  n, i, j;

7

printf("Enter the number of rows: ");

8

scanf("%d",&n);

9

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

10

{

11

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

12

printf("%d",j);

13

printf("\n");

14

}

15

for(int i = n; i >= 0; i--)

16

{

17

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

18

printf("%d",j);

19

printf("\n");

20

}

21

return 0;

22

}

Example #7

1 2 3 4 5 6
1 2 3 4 5
1 2 3 4
1 2 3
1 2
1
1
1 2
1 2 3
1 2 3 4
1 2 3 4 5
1 2 3 4 5 6

Program:

C

1

//Learnprogramo

2

#include<stdio.h>

3

#include<conio.h>

4

int main()

5

{

6

int  n, i, j;

7

printf("Enter the number of rows: ");

8

scanf("%d",&n);

9

for (int i = n; i >= 0; i--)

10

{

11

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

12

printf("%d",j);

13

printf("\n");

14

}

15

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

16

{

17

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

18

printf("%d",j);

19

printf("\n");

20

}

21

return 0;

22

}

Example #8

1
0 1
1 0 1
0 1 0 1
1 0 1 0 1
0 1 0 1 0 1

Program:

C

1

//Learnprogramo

2

#include<stdio.h>

3

#include<conio.h>

4

int main()

5

{

6

int  n, i, j, x, y;

7

printf("Enter the number of rows: ");

8

scanf("%d",&n);

9

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

10

{

11

if (i % 2 == 0)

12

{

13

x = 1;

14

y = 0;

15

}

16

else

17

{

18

x = 0;

19

y = 1;

20

}

21

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

22

if (j % 2 == 0)

23

printf("%d",x);

24

else

25

printf("%d",y);

26

printf("\n");

27

}

28

return 0;

29

}

Example #9

6 6 6 6 6 6
5 5 5 5 5
4 4 4 4
3 3 3
2 2
1

Program:

C

1

//Learnprogramo

2

#include<stdio.h>

3

#include<conio.h>

4

int main()

5

{

6

int  n, i, j;

7

printf("Enter the number of rows: ");

8

scanf("%d",&n);

9

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

10

{

11

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

12

{

13

printf("%d", i);

14

}

15

printf("\n");

16

}

17

return 0;

18

}

Example #10

1 2 3 4 5
2 3 4 5
3 4 5
4 5
5

Program:

C

1

//Learnprogramo

2

#include <stdio.h>

3

int main()

4

{

5

int a, i;

6

for(a = 1;a < 6;a++)

7

{

8

for(i = a;i < 6;i++)

9

{

10

printf("%d", i);

11

}

12

printf("\n");

13

}

14

return 0;

15

}

Example #11

5 4 3 2 1
4 3 2 1
3 2 1
2 1
1

Program:

C

1

//Learnprogramo

2

#include <stdio.h>

3

int main()

4

{

5

int a, i;

6

for(a = 5;a >= 1;a--)

7

{

8

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

9

{

10

printf("%d", i);

11

}

12

printf("\n");

13

}

14

return 0;

15

}

Example #12

5 4 3 2 1
5 4 3 2
5 4 3
5 4
5

Program:

C

1

//Learnprogramo

2

#include <stdio.h>

3

int main()

4

{

5

int a, i;

6

for(a = 1;a < 6;a++)

7

{

8

for(i = 5;i >= a;i--)

9

{

10

printf("%d", i);

11

}

12

printf("\n");

13

}

14

return 0;

15

}

Example #13

5
4 5
3 4 5
2 3 4 5
1 2 3 4 5

Program:

C

1

//Learnprogramo

2

#include <stdio.h>

3

int main()

4

{

5

int a, i;

6

for(a = 5;a >= 1;a--)

7

{

8

for(i = a;i <= 5;i++)

9

{

10

printf("%d", i);

11

}

12

printf("\n");

13

}

14

return 0;

15

}

Example #14

5 5 5 5 5
4 5 5 5 5
3 4 5 5 5
2 3 4 5 5
1 2 3 4 5

Program:

C

1

//Learnprogramo

2

#include <stdio.h>

3

int main()

4

{

5

int a, i, j;

6

for(a = 5;a >= 1;a--)

7

{

8

for(i = a;i <= 5;i++)

9

{

10

printf("%d", i);

11

}

12

for(j = a-1;j >= 1;j--)

13

{

14

printf("5");

15

}

16

printf("\n");

17

}

18

return 0;

19

}

Example #15

5
4 4
3 3 3
2 2 2 2
1 1 1 1 1

Program:

C

1

//Learnprogramo

2

#include <stdio.h>

3

int main()

4

{

5

int a, i;

6

for(a = 5; a >= 1; a--)

7

{

8

for(i = a;i <= 5;i++)

9

{

10

printf("%d", a);

11

}

12

printf("\n");

13

}

14

return 0;

15

}

Example #16

5 5 5 5 5
4 4 4 4
3 3 3
2 2
1

Program:

C

1

//Learnprogramo

2

#include <stdio.h>

3

int main()

4

{

5

int a, i;

6

for(a = 5;a >= 1;a--)

7

{

8

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

9

{

10

printf("%d", a);

11

}

12

printf("\n");

13

}

14

return 0;

15

}

Example #17

1
2 3
4 5 6
7 8 9 10

Program:

C

1

//Learnprogramo

2

#include <stdio.h>

3

int main()

4

{

5

int a, i, k = 1;

6

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

7

{

8

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

9

{

10

printf("%d ", k++);

11

}

12

printf("\n");

13

}

14

return 0;

15

}

Example #18

1
1 0
1 0 1
1 0 1 0
1 0 1 0 1

Program:

C

1

//Learnprogramo

2

#include <stdio.h>

3

int main()

4

{

5

int a, i, k;

6

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

7

{

8

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

9

{

10

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

11

}

12

printf("\n");

13

}

14

return 0;

15

}

Example #19

1
1 2 3
1 2 3 4 5
1 2 3 4 5 6 7
1 2 3 4 5
1 2 3
1

Program:

C

1

//Learnprogramo

2

#include<stdio.h>

3

#include<conio.h>

4

void main()

5

{

6

int i, j;

7

for(i=1;i<=7;i+=2)

8

{

9

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

10

printf("%d",j);

11

printf("\n");

12

}

13

for(i=5;i>=1;i-=2)

14

{

15

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

16

printf("%d",j);

17

printf("\n");

18

}

19

}

Example #20

1
0 0
1 1 1
0 0 0 0
1 1 1 1 1

Program:

C

1

//Learnprogramo

2

#include<stdio.h>

3

#include<conio.h>

4

void main()

5

{

6

int i,j,n;

7

printf("Enter no. of lines:\n");

8

scanf("%d",&n); 

9

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

10

{

11

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

12

{

13

if(i%2==1)

14

{

15

printf("1 ");

16

}

17

else

18

{

19

printf("0 ");

20

}

21

}

22

printf("\n");

23

}

24

}

Conclusion:

So these is the pattern programs in C that are widely used in C and interviews. If you learn all the above patterns then your base of programming will become perfect. Hope you understand all the programs have a nice day…

If you have any problems or doubts then please mention in the below comment box.