package specialNumbers;

/**

* @author Anish

*

*

*/

public class DisariumNumber {

/*Disarium Number is a number whose sum of its digits powered

* with their respective position is equal to the original number

* for Example 89 is disarium Number // ^ = power/exponent

* Number = 89 => 8^1 + 9^2 = 8 + 81 = 89

*/

public static void disariumNumber(int num) { // Static Method

int temp, totalDigit, rem, sum=0;

temp = num; // temp variable to store value of num

totalDigit = countDigit(num); // countDigit is another function which return count of digits

while(temp > 0) {

rem = temp % 10; // gets remainder of temp by 10

// gets sum by adding sum and digit raise to power of its position

sum = sum + (int)(Math.pow(rem, totalDigit));

temp = temp / 10; // updates temp by dividing it by 10

totalDigit--; // decreases count of digits by 1

}

if(sum == num) // check is sum is same as num

System.out.println(">> "+ num +" is Disarium Number"); // IF YES prints Disarium Number

else

System.out.println(">> "+ num +" is NOT Disarium Number"); //// IF NO prints NOT Disarium Number

}

public static int countDigit(int num) {

int count=0;

while(num>0) {

count++;

num = num / 10;

}

return count;

}

// MAIN METHOD

public static void main(String[] args) {

// Input is another public class having getNumber STATIC Method and a return type of INTEGER

System.out.println(" Find A Number is Disarium Number or NOT");

int num = Input.getNumber(); // gets the NUM

disariumNumber(num); // Static method to check number is Disarium Number or NOT

}

}