Write a c program to print a star pattern-8

*  *  *  *

  *  *  *  

    *  *

      *

#include<stdio.h>

int main()

{

int i,j,k;

for(i=1;i<=4;i++)

{

k=1;

for(j=1;j<=7;j++)

{

if(j>=i && j<=8-i && k)

{

printf("*");

k=0;

}

else

{

printf(" ");

    k=1;

}

}

printf("\n");

}

return 0;

}

Write a c program to print a star pattern-7

      *
    *  *
  *  *  *
*  *  *  *
#include<stdio.h>
int main()
{
int i,j,k;
for(i=1;i<=4;i++)
{
k=1;
for(j=1;j<=7;j++)
{
if(j>=5-i && j<=3+i && k)
{
printf("*");
k=0;
}
else
{
printf(" ");
 k=1;
}
}
printf("\n");
}
return 0;
}

Write a c program to print a star pattern-6

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

#include<stdio.h>

int main()

{

int i,j;

for(i=1;i<=4;i++)

{

for(j=1;j<=7;j++)

{

if(j>=i && j<=8-i)

{

printf("*");

}

else

{

printf(" ");

}

}

printf("\n");

}

return 0;

}

Write a c program to print a triangle shaped star pattern-5

         *
      * * *
   * * * * *
* * * * * * *
#include<stdio.h>
int main()
{
int i,j;
for(i=1;i<=4;i++)
{
for(j=1;j<=7;j++)
{
if(j>=5-i && j<=3+i)
{
printf("*");
}
else
{
printf(" ");
}
}
printf("\n");
}
return 0;
}

Write a c program to print a star pattern-4

* * * * * 
* * * * 
* * *
* * 
*
#include<stdio.h>
int main()
{
int i,j;
for(i=1;i<=5;i++)
{
for(j=1;j<=5;j++)
{
if(j<=6-i)
{
printf("*");
}
else
{
printf(" ");
}
}
printf("\n");
}
return 0;
}

Write a c program to print a star pattern-3

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

#include<stdio.h>
int main()
{
int i,j;
for(i=1;i<=5;i++)
{
for(j=1;j<=5;j++)
{
if(j>=6-i)
{
printf("*");
}
else
{
printf(" ");
}
}
printf("\n");
}
return 0;
}

Write a c program to print a Star pattern-2

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


#include<stdio.h>
int main()
{
int i,j;
for(i=1;i<=5;i++)
{
for(j=1;j<=5;j++)
{
if(j>=i)
{
printf("*");
}
else
{
printf(" ");
}
}
printf("\n");
}
return 0;
}

Write a c program to print a Right angle star pattern

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

#include<stdio.h>
int main()
{
int i,j;
for(i=1;i<=5;i++)
{
for(j=1;j<=5;j++)
{
if(j<=i)
{
printf("*");
}
else
{
printf(" ");
}
}
printf("\n");
}
return 0;
}

Write a c program to calculate the value of a raised to b using function pow(a,b)

#include<stdio.h>
#include<math.h>
int main()
{
int s;
float a,b;
printf("Enter the value of a\n");
printf("Enter the value of b\n");
scanf("%f",&a);
scanf("%f",&b);
s=pow(a,b);
printf("power=%d",s);
return 0;
}

Write a program in c to check whether a number is Even or Odd.

#include<stdio.h>
int main()
{
int n;
printf("Enter a number\n");
scanf("%d",&n);
if(n%2==0)
{
printf("Even number");
}
else
{
printf("Odd number");
}
return 0;
}

Write a program in c to check whether a number is prime number or not.

#include<stdio.h>
int main()
{
int num,i,flag=0;
printf("Enter a number\n");
scanf("%d",&num);
for(i=2;i<=num/2;i++)
{
if(num%i==0)
{
printf("Not a prime number");
flag=1;
break;
}
}
if(flag==0)
{
printf("prime number");
}
return 0;
}

Write a program in c to calculate the sum of digits.

#include<stdio.h>
int main()
{
int num,r,sum=0;
printf("Enter a number\n");
scanf("%d",&num);
while(num>0)
{
r=num%10;
sum=sum+r;
num=num/10;
}
printf("Sum of digits=%d",sum);
return 0;
}

Write a program in c to check whether a number is armstrong or not.

#include<stdio.h>
int main()
{
int num,temp,r,sum=0;
printf("Enter a number\n");
scanf("%d",&num);
temp=num;
while(num>0)
{
r=num%10;
sum=sum+(r*r*r);
num=num/10;
}
if(sum==temp)
{
printf("Armstrong Number");
}
else
{
printf("Not an Armstrong Number");
}
return 0;
}

Write a program in c to check whether a number is palindrome or not.

#include<stdio.h>
int main()
{
int num,temp,r,sum=0;
printf("Enter a number\n");
scanf("%d",&num);
temp=num;
while(num>0)
{
r=num%10;
sum=sum*10+r;
num=num/10;
}
if(sum==temp)
{
printf("Palindrome Number");
}
else
{
printf("Not a palindrome Number");
}
return 0;
}

Write a program in c to enter a number and reverse it.

#include<stdio.h>
int main()
{
int num,rev,r,sum=0;
printf("Enter a number\n");
scanf("%d",&num);
while(num>0)
{
r=num%10;
sum=sum*10+r;
num=num/10;
}
printf("Reverse=%d",sum);
return 0;
}

Write a program in c to calculate the area and perimeter of a rectangle.

#include<stdio.h>
int main()
{
int l,b;
float area,peri;
printf("Enter the length of rectangle\n");
printf("Enter the length of rectangle\n");
scanf("%d",&l);
scanf("%d",&b);
area=l*b;
peri=2*(l+b);
printf("Area=%f\n",area);
printf("Perimeter=%f",peri);
return 0;
}

Write a program in c to calculate the simple interest.

#include<stdio.h>
int main()
{
int p,t;
float r,si;
printf("Enter the principle\n");
printf("Enter the rate\n");
printf("Enter the time\n");
scanf("%d",&p);
scanf("%f",&r);
scanf("%d",&t);
si=(p*r*t)/100;
printf("simple interest=%f",si);
return 0;

}

Write a program in c to find the factorial of a given number.

#include<stdio.h>
int main()
{
int i,n,f=1;
printf("Enter the number\n");
scanf("%d",&n);
for(i=1;i<=n;i++)
{
f=f*i;
}
printf("factorial=%d",f);
return 0;
}

Write A Program In c To Check Whether A Number is a Perfect number or not.

#include<stdio.h>
int main()
{
int i,n,sum=0;
printf("Enter a number\n");
scanf("%d",&n);
for(i=1;i<n;i++)
{
if(n%i==0)
{
sum=sum+i;
}
}
if(sum==n)
{
printf("perfect number");
}
else
{
printf("Not a perfect number");
}
return 0;
}