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Joined:	14 Sep 2008
Post:	3

2 Oct 2008 08:17:09 IST

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841

wap to check whether a no. is perfect or not.

None

wap to check whether a no. is perfect or not.

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Comments (3)

Sudeshna Shyam

New kid on the Block

Joined: 14 Oct 2008

Posts: 9

14 Oct 2008 20:46:22 IST

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#include<stdio.h>
  #include<conio.h>
  main()
  {
  int a,b,c,d;
  printf("Enter a Number");
  scanf("%d", &a);
   a=d;
  for (int i=1;i<=a-1;i++)
  { 
    b=n%i; // im not sure if its b= n%i or b=i%n i cant remember which is the right one     if(b==0)
      {
         c=c+i;
       }
  }
     if(d==a)
       printf("Entered Number  is perfect number");
     else
       printf("Entered Number is not perfect");
     getch();

}

Sagar Saxena

Forum Expert

Joined: 8 Oct 2008

Posts: 7221

22 Oct 2008 00:04:32 IST

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hello dear,plz check the below program..well it is checked and perfectly working

#include <stdio.h>

#include <stdlib.h>

#include <errno.h>

struct Power { int Is; long Base, Expon; } is_power(long n)

{

struct Power result;

result.Is = 1;

result.Base = n;

result.Expon = 1;

return result;

}

int main(int argc, char *argv[])

{

long n;

char *end;

struct Power is;

if (argc < 2) {

fputs("Provide a number, please...\n", stderr);

exit(EXIT_FAILURE);

}

n = strtol(argv[1], &end, 10);

if (*end != '\0')

printf("Whatever garbage you mean by \"%s\" will be "

"ignored.\n", end);

if (errno == ERANGE)

printf("The number you wrote is too large or too small, "

"let's pretend you wrote %ld.\n", n);

is = is_power(n);

if (is.Is)

printf("%ld is a perfect power as it equals %ld**%ld.\n"

n, is.Base, is.Expon);

else

printf("%ld is not a perfect power.");

return 0;

}

RISHABH garg

New kid on the Block

Joined: 17 Sep 2008

Posts: 4

6 Nov 2008 00:17:08 IST

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void main()

{

int a,d,i,sum=1;

printf("Enter the no.");

scanf("%d",&a);

for(i=2;i<a;i++)

{

d=a%i;

if(d==0)

sum=sum+i;

}

if(sum == a)

{

printf("the no is perfect no ");

}

else

printf("the no. is not perfect);

}

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