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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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C program to check a number is Perfect number or not



In this C-program we will check a number is Perfect number or not. The number will be taken from the user.

input:

The number .

output:

The number will be Perfect number or not.

CODE---->

#include<stdio.h>
#include<conio.h>
 main()
{
int num,n,i,sum=0;
printf(" Please,Enter a number \(to check whether it is Perfect number or Not\) : ");
scanf("%d",&num);
n=num;
for(i=1;i<=(n-1);i++)
{
if(n%i==0)
sum=sum+i;
}
if(sum==num)
printf("\n %d is a perfect number.",num);
else
printf("\n %d is not a perfect number.",num);

getch();
}



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

RESULT:



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