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C programs QnA

Q. If sum of two integer is 14 and if one of them is 8 then find other integer. Ans: Well, this is very simple. Simply, one integer is 8 and sum of two integers is 14. So, we need to subtract the number 8 from their sum of 14 to get the second number. So, the second number is: 14 - 8 = 6 C-Program of this task Code---> #include<stdio.h> int main () { int num1 = 8 , num2 , sum = 14 ; num2 = sum - num1 ; printf ( "The second number is: %d" , num2 ); return 0 ; }
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Perfect Numbers in a Range in C-Language



In this C-program we will check the Perfect numbers in a given Range and print them on the screen. The lower range and the upper range will be taken from the user.

input:

The Lower Range and the Upper Range.

output:

The Perfect numbers will be printed on the screen in the given range.

CODE---->

#include<stdio.h>
#include<stdlib.h>
int perfect(int x)
{
 int i,sum=0;
 if(x==0)
  return 0;
 for(i=1;i<=(x-1);i++)
 {
  if(x%i==0)
   sum=sum+i;
 }
 if(sum==x)
  return 1;
 else
  return 0;
}
int main()
{
 int num,i,lr,ur,check;
 printf("\n Please, Enter the Lower range : ");
 scanf("%d",&lr);
 printf("\n Please, Enter the Higher range : ");
 scanf("%d",&ur);
 printf("\n The Perfect numbers are : ");
 for(i=lr;i<=ur;i++)
 {
  check=perfect(i);
  if(check==1)
   printf(" %d ",i);
 }
 printf("\n");
}




Don't just read, write it, run it.....

RESULT:



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