Basic C Programs(PART 3)

11.Armstrong numbers:

#include<stdio.h>  
 int main()    
{    
int n,r,sum=0,temp;    
printf("enter number");    
scanf("%d",&n);    
temp=n;
while(n>0) 
{    
r=n%10;
sum=sum+(r*r*r); 
n=n/10;
}    
if(temp==sum) 
printf("Yes");    
else    
printf("No");    
return 0;  
}   

12.Calculate the sum of digit:

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

13.Prime Number:

#include<stdio.h>
int main()
{
int n,i;
printf("Enter the number");
scanf("%d",&n);
for(i = 2; i <= n/2; i++)
{
if(n % i ==0)
{
break;
}
}
if(i > n/2)
printf("\n%d is a Prime Number\n",n);
else
printf("\n%d is not a Prime Number\n", n);
return 0;
}

14.Check Leap Year:

#include <stdio.h>

int main() {
   int year;
   printf("Enter Year");
   scanf("%d",&year);

   if (((year % 4 == 0) && (year % 100!= 0)) || (year%400 == 0))
      printf("%d is a leap year", year);
   else
      printf("%d is not a leap year", year);

   return 0;
}

15.Check number positive/negative:

#include <stdio.h>

int main() {
    int n;
   printf("Enter number");
   scanf("%d",&n);

   if (n >= 0)
      printf("%d is positive\n", n);
   else
      printf("%d is negative\n", n);

   return 0;
}

Note: Any Related short programs regarding the above code, put it in comment session.

Other Related Posts:

Basic C Programs(PART 1)

Basic C Programs(PART 2)

Basic C Programs(PART 4)

Basic C Programs(PART 5)