# Spy Number :

If the Sum of the digits and Product of the digits same then the number is said to be a Spy number.

example:
n=123
Sum of digits=6
Product of digits=6
Number is a Spy number

n=234
Sum of digits=9
Product of digits=24
Number is a not Spy number

# C program to check number is a spy number or not(Using For Loop)

### Solution : Without using function Program/Source Code

```#include <stdio.h>

int main()
{
int n,s=0,p=1,d;
printf("Enter any no ");
scanf("%d",&n);
for(;n>0;)
{
d=n%10;
s=s+d;
p=p*d;
n=n/10;
}
printf("Sum of digits = %d Product of digits = %d\n",s,p);
if(s==p)
printf("Number is a Spy Number");
else
printf("Number is not a Spy Number");
return 0;
}
```

## Output:

case 1:

Enter any no 253
Sum of digits = 10 Product of digits = 30
Number is not a Spy Number

case 2:

Enter any no 123
Sum of digits = 6 Product of digits = 6
Number is a Spy Number

# C program to check number is a spy number or not(Using While Loop)

### Solution : Without using function Program/Source Code

```#include <stdio.h>

int main()
{
int n,s=0,p=1,d;
printf("Enter any no ");
scanf("%d",&n);
while(n>0)
{
d=n%10;
s=s+d;
p=p*d;
n=n/10;
}
printf("Sum of digits = %d Product of digits = %d\n",s,p);
if(s==p)
printf("Number is a Spy Number");
else
printf("Number is not a Spy Number");
return 0;
}
```

## Output:

case 1:

Enter any no 321
Sum of digits = 6 Product of digits = 6
Number is a Spy Number

case 2:

Enter any no 365
Sum of digits = 14 Product of digits = 90
Number is not a Spy Number

C program to check number is a spy number or not

### Solution : Using function Without Passing Arguments Program/Source Code

```#include <stdio.h>
void check()
{
int n,s=0,p=1,d;
printf("Enter any no ");
scanf("%d",&n);
while(n>0)
{
d=n%10;
s=s+d;
p=p*d;
n=n/10;
}
printf("Sum of digits = %d Product of digits = %d\n",s,p);
if(s==p)
printf("Number is a Spy Number");
else
printf("Number is not a Spy Number");
}

int main()
{
check();
return 0;
}
```

## Output:

case 1:

Enter any no 312
Sum of digits = 6 Product of digits = 6
Number is a Spy Number

case 2:

Enter any no 145
Sum of digits = 10 Product of digits = 20
Number is not a Spy Number

C program to check number is a spy number or not

### Solution : Using function Passing Arguments Program/Source Code

```#include <stdio.h>
void check(int n)
{
int s=0,p=1,d;
while(n>0)
{
d=n%10;
s=s+d;
p=p*d;
n=n/10;
}
printf("Sum of digits = %d Product of digits = %d\n",s,p);
if(s==p)
printf("Number is a Spy Number");
else
printf("Number is not a Spy Number");
}

int main()
{
int n;
printf("Enter any no ");
scanf("%d",&n);

check(n);
return 0;
}
```

## Output:

case 1:

Enter any no 965
Sum of digits = 20 Product of digits = 270
Number is not a Spy Number

case 2:

Enter any no 231
Sum of digits = 6 Product of digits = 6
Number is a Spy Number

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