Security Key Description A company is transmitting data to another server. The data is in the form of numbers. To secure the data during transmission, they plan to obtain a security key that will be sent along with the data. The security key is identified as the count of the repeating digits in the data. Write an algorithm to find the security key for the data. Input The input consists of an integer data, representing the data to be transmitted. Output Print an integer representing the security key for the given data. If no data is repeated it should display -1 Constraints NA Example Input: 578378923 Output: 3 Explanation The repeated digits in the data are 7, 8 and 3. So, the security key is 3. Public Test Cases # Input Expected Output 1 578378923 3 Programming Language: C (GCC 9.2.0)

Security Key

Description

A company is transmitting data to another server. The data is in the form of numbers. To secure 

the data during transmission, they plan to obtain a security key that will be sent along with the 

data. The security key is identified as the count of the repeating digits in the data.

Write an algorithm to find the security key for the data.

Input

The input consists of an integer data, representing the data to be transmitted.

Output

Print an integer representing the security key for the given data. If no data is repeated it should 

display

-1

Constraints

NA

Example

Input:

578378923

Output: 3

Explanation

The repeated digits in the data are 7, 8 and 3. So, the security key is 3.

Public Test Cases

 

# Input Expected Output

1 578378923 3

 

Programming Language: C (GCC 9.2.0)

#include <stdio.h>

int main()

{

 long int n;

 scanf("%ld", &n);

 int a[10]={0};

 while(n)

 {

 a[n%10]++;

 n=n/10;

 }

 int i,sk=0;

 for(i=0;i<10;i++)

 {

 if(a[i]>1)

 sk++;

 }

 if(sk==0)

 sk=-1;

 printf("%d",sk);