Advent of code – Day 3: Rucksack Reorganization
Galician
O enunciado.
Vale, o enunciado está en inglés, e é unha matada traducilo. Así que podedes velo en inglés. Nun futuro, se teño tempo, tradúzoo.
A solución utilizando os datos adaptados.
package adventofcode2022;
import static data.DataInput.*;
public class AdventOfCode3 {
public static void main(final String[] args) {
final String[] rucksacks = toArray(getRucksacks());
int points = 0;
for (final String rucksack : rucksacks) {
final int mid = rucksack.length() / 2; //get the middle of the String
final String[] parts = { rucksack.substring(0, mid), rucksack.substring(mid) };
points += getPointsByPriority(parts);
}
System.out.println(points);
points = 0;
final String[] groupThree = new String[] { "", "", "" };
int cont = 0;
for (int i = 0; i < rucksacks.length; i++) {
groupThree[cont++] = rucksacks[i];
if (cont % 3 == 0) {
points += getGroupPointsByPriority(groupThree);
cont = 0;
}
}
System.out.println(points);
}
private static int getGroupPointsByPriority(final String[] groupThree) {
final char common = '1';
for (int i = 0; i < groupThree[0].toCharArray().length; i++) {
for (int j = 0; j < groupThree[1].toCharArray().length; j++) {
if (groupThree[0].toCharArray()[i] == groupThree[1].toCharArray()[j]) {
for (int z = 0; z < groupThree[2].toCharArray().length; z++) {
if (groupThree[2].toCharArray()[z] == groupThree[0].toCharArray()[i]) {
return itemsValue.get(groupThree[2].toCharArray()[z]);
}
}
}
}
}
return 0;
}
private static int getPointsByPriority(final String[] parts) {
final char common = getCommonItem(parts[0], parts[1]);
if (common != '1') {
return itemsValue.get(common);
}
return 0;
}
private static char getCommonItem(final String part1, final String part2) {
for (final char part1char : part1.toCharArray()) {
for (final char part2char : part2.toCharArray()) {
if (part1char == part2char) {
return part1char;
}
}
}
return '1';
}
}package data;
import java.io.IOException;
import java.nio.charset.Charset;
import java.nio.file.Files;
import java.nio.file.Paths;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.stream.Collectors;
import java.util.stream.Stream;
public class DataInput {
private static List<String> getListByPath(final String path) {
try {
return Files.readAllLines(Paths.get(path), Charset.defaultCharset());
} catch (final IOException e) {
throw new RuntimeException(e);
}
}
public static String[] toArray(final List<String> list) {
return list.toArray(String[]::new);
}
public static final Map<Character, Integer> itemsValue = new HashMap<>() {{
put('a', Integer.valueOf(1));
put('b', Integer.valueOf(2));
put('c', Integer.valueOf(3));
put('d', Integer.valueOf(4));
put('e', Integer.valueOf(5));
put('f', Integer.valueOf(6));
put('g', Integer.valueOf(7));
put('h', Integer.valueOf(8));
put('i', Integer.valueOf(9));
put('j', Integer.valueOf(10));
put('k', Integer.valueOf(11));
put('l', Integer.valueOf(12));
put('m', Integer.valueOf(13));
put('n', Integer.valueOf(14));
put('o', Integer.valueOf(17));
put('p', Integer.valueOf(16));
put('q', Integer.valueOf(17));
put('r', Integer.valueOf(18));
put('s', Integer.valueOf(19));
put('t', Integer.valueOf(20));
put('u', Integer.valueOf(21));
put('v', Integer.valueOf(22));
put('w', Integer.valueOf(23));
put('x', Integer.valueOf(24));
put('y', Integer.valueOf(25));
put('z', Integer.valueOf(26));
put('A', Integer.valueOf(27));
put('B', Integer.valueOf(28));
put('C', Integer.valueOf(29));
put('D', Integer.valueOf(30));
put('E', Integer.valueOf(31));
put('F', Integer.valueOf(32));
put('G', Integer.valueOf(33));
put('H', Integer.valueOf(34));
put('I', Integer.valueOf(35));
put('J', Integer.valueOf(36));
put('K', Integer.valueOf(37));
put('L', Integer.valueOf(38));
put('M', Integer.valueOf(39));
put('N', Integer.valueOf(40));
put('O', Integer.valueOf(41));
put('P', Integer.valueOf(42));
put('Q', Integer.valueOf(43));
put('R', Integer.valueOf(44));
put('S', Integer.valueOf(45));
put('T', Integer.valueOf(46));
put('U', Integer.valueOf(47));
put('V', Integer.valueOf(48));
put('W', Integer.valueOf(49));
put('X', Integer.valueOf(50));
put('Y', Integer.valueOf(51));
put('Z', Integer.valueOf(52));
}};
}
Regresar á páxina principal do Advent of Code 2022.
English
The statement
https://adventofcode.com/2022/day/3
Solution.
package adventofcode2022;
import static data.DataInput.*;
public class AdventOfCode3 {
public static void main(final String[] args) {
final String[] rucksacks = toArray(getRucksacks());
int points = 0;
for (final String rucksack : rucksacks) {
final int mid = rucksack.length() / 2; //get the middle of the String
final String[] parts = { rucksack.substring(0, mid), rucksack.substring(mid) };
points += getPointsByPriority(parts);
}
System.out.println(points);
points = 0;
final String[] groupThree = new String[] { "", "", "" };
int cont = 0;
for (int i = 0; i < rucksacks.length; i++) {
groupThree[cont++] = rucksacks[i];
if (cont % 3 == 0) {
points += getGroupPointsByPriority(groupThree);
cont = 0;
}
}
System.out.println(points);
}
private static int getGroupPointsByPriority(final String[] groupThree) {
final char common = '1';
for (int i = 0; i < groupThree[0].toCharArray().length; i++) {
for (int j = 0; j < groupThree[1].toCharArray().length; j++) {
if (groupThree[0].toCharArray()[i] == groupThree[1].toCharArray()[j]) {
for (int z = 0; z < groupThree[2].toCharArray().length; z++) {
if (groupThree[2].toCharArray()[z] == groupThree[0].toCharArray()[i]) {
return itemsValue.get(groupThree[2].toCharArray()[z]);
}
}
}
}
}
return 0;
}
private static int getPointsByPriority(final String[] parts) {
final char common = getCommonItem(parts[0], parts[1]);
if (common != '1') {
return itemsValue.get(common);
}
return 0;
}
private static char getCommonItem(final String part1, final String part2) {
for (final char part1char : part1.toCharArray()) {
for (final char part2char : part2.toCharArray()) {
if (part1char == part2char) {
return part1char;
}
}
}
return '1';
}
}package data;
import java.io.IOException;
import java.nio.charset.Charset;
import java.nio.file.Files;
import java.nio.file.Paths;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.stream.Collectors;
import java.util.stream.Stream;
public class DataInput {
private static List<String> getListByPath(final String path) {
try {
return Files.readAllLines(Paths.get(path), Charset.defaultCharset());
} catch (final IOException e) {
throw new RuntimeException(e);
}
}
public static String[] toArray(final List<String> list) {
return list.toArray(String[]::new);
}
public static final Map<Character, Integer> itemsValue = new HashMap<>() {{
put('a', Integer.valueOf(1));
put('b', Integer.valueOf(2));
put('c', Integer.valueOf(3));
put('d', Integer.valueOf(4));
put('e', Integer.valueOf(5));
put('f', Integer.valueOf(6));
put('g', Integer.valueOf(7));
put('h', Integer.valueOf(8));
put('i', Integer.valueOf(9));
put('j', Integer.valueOf(10));
put('k', Integer.valueOf(11));
put('l', Integer.valueOf(12));
put('m', Integer.valueOf(13));
put('n', Integer.valueOf(14));
put('o', Integer.valueOf(17));
put('p', Integer.valueOf(16));
put('q', Integer.valueOf(17));
put('r', Integer.valueOf(18));
put('s', Integer.valueOf(19));
put('t', Integer.valueOf(20));
put('u', Integer.valueOf(21));
put('v', Integer.valueOf(22));
put('w', Integer.valueOf(23));
put('x', Integer.valueOf(24));
put('y', Integer.valueOf(25));
put('z', Integer.valueOf(26));
put('A', Integer.valueOf(27));
put('B', Integer.valueOf(28));
put('C', Integer.valueOf(29));
put('D', Integer.valueOf(30));
put('E', Integer.valueOf(31));
put('F', Integer.valueOf(32));
put('G', Integer.valueOf(33));
put('H', Integer.valueOf(34));
put('I', Integer.valueOf(35));
put('J', Integer.valueOf(36));
put('K', Integer.valueOf(37));
put('L', Integer.valueOf(38));
put('M', Integer.valueOf(39));
put('N', Integer.valueOf(40));
put('O', Integer.valueOf(41));
put('P', Integer.valueOf(42));
put('Q', Integer.valueOf(43));
put('R', Integer.valueOf(44));
put('S', Integer.valueOf(45));
put('T', Integer.valueOf(46));
put('U', Integer.valueOf(47));
put('V', Integer.valueOf(48));
put('W', Integer.valueOf(49));
put('X', Integer.valueOf(50));
put('Y', Integer.valueOf(51));
put('Z', Integer.valueOf(52));
}};
}