# C : Code To Create Pyramid and Pattern

Tutorial by:Manisha Dubey      Date: 2016-06-17 03:46:57

Examples to print half pyramid, pyramid, inverted pyramid, Pascal's Triangle and Floyd's triangle in C Programming using control statements.

## Programs to print triangles using *, numbers and characters

### Example 1: Program to print half pyramid using *

```*
* *
* * *
* * * *
* * * * *```
``````#include <stdio.h>
int main()
{
int i, j, rows;

printf("Enter the number of rows: ");
scanf("%d",&rows);

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

### Example 2: Program to print half pyramid a using numbers

```1
1 2
1 2 3
1 2 3 4
1 2 3 4 5```
``````#include <stdio.h>
int main()
{
int i, j, rows;

printf("Enter the number of rows: ");
scanf("%d",&rows);

for(i=1; i<=rows; ++i)
{
for(j=1; j<=i; ++j)
{
printf("%d ",j);
}
printf("\n");
}
return 0;
}``````

### Example 3: Program to print half pyramid using alphabets

```A
B B
C C C
D D D D
E E E E E```
``````#include <stdio.h>
int main()
{
int i, j;
char input, alphabet = 'A';

printf("Enter the uppercase character you want to print in last row: ");
scanf("%c",&input);

for(i=1; i <= (input-'A'+1); ++i)
{
for(j=1;j<=i;++j)
{
printf("%c", alphabet);
}
++alphabet;

printf("\n");
}
return 0;
}``````

## Programs to print inverted half pyramid using * and numbers

### Example 4: Inverted half pyramid using *

```* * * * *
* * * *
* * *
* *
*```
``````#include <stdio.h>
int main()
{
int i, j, rows;

printf("Enter the number of rows: ");
scanf("%d",&rows);

for(i=rows; i>=1; --i)
{
for(j=1; j<=i; ++j)
{
printf("* ");
}
printf("\n");
}

return 0;
}``````

### Example 5: Inverted half pyramid using numbers

```1 2 3 4 5
1 2 3 4
1 2 3
1 2
1```
``````#include <stdio.h>
int main()
{
int i, j, rows;

printf("Enter the number of rows: ");
scanf("%d",&rows);

for(i=rows; i>=1; --i)
{
for(j=1; j<=i; ++j)
{
printf("%d ",j);
}
printf("\n");
}

return 0;
}``````

## Programs to display pyramid and inverted pyramid using * and digits

### Example 6: Program to print full pyramid using *

```        *
* * *
* * * * *
* * * * * * *
* * * * * * * * *```
``````#include <stdio.h>
int main()
{
int i, space, rows, k=0;

printf("Enter the number of rows: ");
scanf("%d",&rows);

for(i=1; i<=rows; ++i, k=0)
{
for(space=1; space<=rows-i; ++space)
{
printf("  ");
}

while(k != 2*i-1)
{
printf("* ");
++k;
}

printf("\n");
}

return 0;
}``````

### Example 7: Program to print pyramid using numbers

```
1
2 3 2
3 4 5 4 3
4 5 6 7 6 5 4
5 6 7 8 9 8 7 6 5```
``````#include <stdio.h>
int main()
{
int i, space, rows, k=0, count = 0, count1 = 0;

printf("Enter the number of rows: ");
scanf("%d",&rows);

for(i=1; i<=rows; ++i)
{
for(space=1; space <= rows-i; ++space)
{
printf("  ");
++count;
}

while(k != 2*i-1)
{
if (count <= rows-1)
{
printf("%d ", i+k);
++count;
}
else
{
++count1;
printf("%d ", (i+k-2*count1));
}
++k;
}
count1 = count = k = 0;

printf("\n");
}
return 0;
}``````

### Example 8: Inverted full pyramid using *

```
* * * * * * * * *
* * * * * * *
* * * * *
* * *
*```
``````#include<stdio.h>
int main()
{
int rows, i, j, space;

printf("Enter the number of rows: ");
scanf("%d",&rows);

for(i=rows; i>=1; --i)
{
for(space=0; space < rows-i; ++space)
printf("  ");

for(j=i; j <= 2*i-1; ++j)
printf("* ");

for(j=0; j < i-1; ++j)
printf("* ");

printf("\n");
}

return 0;
}``````

### Example 9: Print Pascal's triangle

```
1
1   1
1   2   1
1   3   3    1
1  4    6   4   1
1  5   10   10  5   1 ```
``````#include <stdio.h>
int main()
{
int rows, coef = 1, space, i, j;

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

for(i=0; i<rows; i++)
{
for(space=1; space <= rows-i; space++)
printf("  ");

for(j=0; j <= i; j++)
{
if (j==0 || i==0)
coef = 1;
else
coef = coef*(i-j+1)/j;

printf("%4d", coef);
}
printf("\n");
}

return 0;
}``````

### Example 10: Print Floyd's Triangle.

```1
2 3
4 5 6
7 8 9 10```
``````#include <stdio.h>
int main()
{
int rows, i, j, number= 1;

printf("Enter the number of rows: ");
scanf("%d",&rows);

for(i=1; i <= rows; i++)
{
for(j=1; j <= i; ++j)
{
printf("%d ", number);
++number;
}

printf("\n");
}

return 0;
}``````

## C

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