C Program To Display The Star ‘*’ Patterns

C Program To display the triangle using *, numbers and character


PROGRAM CODE:-

Write a C Program to print half pyramid as using * as shown in figure below.
*
* *
* * *
* * * *
* * * * *

#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;
}


PROGRAM CODE:-

Write a C Program to print half pyramid as using numbers as shown in figure below.
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;
}


PROGRAM CODE:-

Write a C Program to print triangle of characters as below
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,temp='A';
printf("Enter last row: ");
scanf("%c",&input);
for(i=1;i<=(input-'A'+1);++i)
{
for(j=1;j<=i;++j)
printf("%c",temp);
++temp;
printf("n");
}
return 0;
}


PROGRAM CODE:-

Write a C Program to print inverted half pyramid using * as shown below.
* * * * *
* * * *
* * *
* *
*
#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;
}


PROGRAM CODE:-

Write a C Program to print inverted half pyramid as using numbers as shown below.
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;
}


PROGRAM CODE:-

Write a C program to print 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)
{
for(space=1;space<=rows-i;++space)
{
printf(" ");
}
while(k!=2*i-1)
{
printf("* ");
++k;
}
k=0;
printf("n");
}
return 0;
}


PROGRAM CODE:-

Write a C program to print the pyramid of digits in pattern as below.
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;
}


PROGRAM CODE:-

Write a C program to display reverse pyramid.

* * * * * * * * *
* * * * * * *
* * * * *
* * *
*

#include<stdio.h>
int main()
{
int rows,i,j,space;
printf("Enter 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;
}


PROGRAM CODE:-

C Program to Draw 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");
}
}


PROGRAM CODE:-

C Program to display Floyd's Triangle.
1
2 3
4 5 6
7 8 9 10
#include<stdio.h>
int main()
{
int rows,i,j,k=0;
printf("Enter number of rows: ");
scanf("%d",&rows);
for(i=1;i<=rows;i++)
{
for(j=1;j<=i;++j)
printf("%d ",k+j);
++k;
printf("n");
}
}

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