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Data update

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Ingy döt Net 2024-07-13 15:19:22 -07:00
parent 29a5eea0d4
commit 5c1bb7bfa9
2011 changed files with 35081 additions and 3229 deletions
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35
Task/P-Adic-numbers-basic/Java/p-adic-numbers-basic.java
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@ -1,3 +1,8 @@
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import java.util.stream.Collectors;
public final class PAdicNumbersBasic {
public static void main(String[] args) {
@ -124,7 +129,7 @@ final class Padic {
List<Integer> numbers = new ArrayList<Integer>(digits);
// Zero
if ( allZeroDigits(numbers) ) {
if ( numbers.isEmpty() || allZeroDigits(numbers) ) {
return new Rational(0, 1);
}
@ -177,29 +182,28 @@ final class Padic {
/**
* Return a string representation of this p-adic.
*/
public String toString() {
while ( digits.size() > PRECISION ) {
digits.removeLast();
}
padWithZeros(digits);
StringBuilder builder = new StringBuilder();
for ( int i = digits.size() - 1; i >= 0; i-- ) {
builder.append(digits.get(i));
}
public String toString() {
List<Integer> numbers = new ArrayList<Integer>(digits);
padWithZeros(numbers);
Collections.reverse(numbers);
String numberString = numbers.stream().map(String::valueOf).collect(Collectors.joining());
StringBuilder builder = new StringBuilder(numberString);
if ( order >= 0 ) {
for ( int i = 0; i < order; i++ ) {
builder.append("0");
builder.deleteCharAt(0);
}
builder.append(".0");
} else {
builder.insert(builder.length() + order, ".");
while ( builder.toString().endsWith("0") ) {
builder.deleteCharAt(builder.length() - 1);
}
}
return " ..." + builder.toString();
return " ..." + builder.toString().substring(builder.length() - PRECISION - 1);
}
// PRIVATE //
@ -214,7 +218,6 @@ final class Padic {
private Padic(int aPrime, List<Integer> aDigits, int aOrder) {
prime = aPrime;
digits = new ArrayList<Integer>(aDigits);
padWithZeros(digits);
order = aOrder;
}
@ -235,7 +238,7 @@ final class Padic {
* into a list which represents the negation of the p-adic number.
*/
private void negateList(List<Integer> aDigits) {
aDigits.set(0, ( prime - aDigits.get(0) ) % prime);
aDigits.set(0, Math.floorMod(prime - aDigits.get(0), prime));
for ( int i = 1; i < aDigits.size(); i++ ) {
aDigits.set(i, prime - 1 - aDigits.get(i));
}
@ -266,7 +269,7 @@ final class Padic {
* The given list is padded on the right by zeros up to a maximum length of 'PRECISION'.
*/
private static void padWithZeros(List<Integer> aList) {
while ( aList.size() < PRECISION ) {
while ( aList.size() < DIGITS_SIZE ) {
aList.addLast(0);
}
}