What is wrong in this code?

Question

This is a program to find superperfect no.s from 1 to n.
Superperfect no(say a) is the one, sum of whose divisors =x(say)
Then,
Sum of divisors of x=a*2
The code us written in C..

#include <stdio.h>
#include <conio.h>
int super(int a)
{
int sum=0,b;

for(b=1;b<=a;b++)
{
if(a%b==0)
sum=sum+b;
}
return sum;
}

int main()
{
int n;

scanf("%d",&n);
int i;
for(i=1;i<=n;i++)
{
int c=super(i);
int d=super(c);
if(d==i*2)
printf("%d",i);
}

}
Thanks

Answer 1

First, scanf does not seems to work on sololearn playground ....
Second, conio.h might not be recognized here either and is a windows only library
Third, declaring variables in the for loop or just after any statement is bad practice in C and does not compile if you compile it with ANSI C.
Last, you forgot the return 0; statement :)

Answer 2

Hey @Prunier The code is running now!

Answer 3

@Lordkrishna He Bhagwan! Javascript ka tag hata diya gaya hai. Galti ke liye kshama mangte hai...

Answer 4

Thanks @Prunier. But still wondering why my other codes worked well even without return 0. Why is it so??

Answer 5

@ATD the compiler can have added it by default, I do not know and can't know without seeing the code :/
Even seeing them can not be enough to find out ^^