package com.thealgorithms.greedyalgorithms;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
/**
* This class provides methods to separate the digits of a large positive number into a list.
*/
public class DigitSeparation {
public DigitSeparation() {
}
/**
* Separates the digits of a large positive number into a list in reverse order.
* @param largeNumber The large number to separate digits from.
* @return A list of digits in reverse order.
*/
public List<Long> digitSeparationReverseOrder(long largeNumber) {
List<Long> result = new ArrayList<>();
if (largeNumber != 0) {
while (largeNumber != 0) {
result.add(Math.abs(largeNumber % 10));
largeNumber = largeNumber / 10;
}
} else {
result.add(0L);
}
return result;
}
/**
* Separates the digits of a large positive number into a list in forward order.
* @param largeNumber The large number to separate digits from.
* @return A list of digits in forward order.
*/
public List<Long> digitSeparationForwardOrder(long largeNumber) {
List<Long> result = this.digitSeparationReverseOrder(largeNumber);
Collections.reverse(result);
return result;
}
}