alazyreader/AdventOfCode2025
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day 1 in the books

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David
2025-12-01 20:44:46 -05:00
parent 3eb6aa5002
commit b3521f6253
3 changed files with 93 additions and 7 deletions
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21
main.java.tmpl
View File

@@ -5,8 +5,25 @@ import java.util.Scanner;
public class Day00 {
public static void main(String[] args) {
try (Scanner scanner = new Scanner(new FileReader("resources/00/input")).useDelimiter("\\R")) {
StringBuilder sb = new StringBuilder();
part1();
part2();
}
private static void part1() {
try (Scanner scanner = new Scanner(new FileReader("resources/inputs/00/input")).useDelimiter("\\R")) {
while (scanner.hasNext()) {
sb.append(scanner.next());
sb.append("\n");
}
String input = sb.toString();
System.out.println(input);
} catch (Exception e) {
System.out.println(e.getMessage());
}
}
private static void part2() {
try (Scanner scanner = new Scanner(new FileReader("resources/inputs/00/input")).useDelimiter("\\R")) {
while (scanner.hasNext()) {
sb.append(scanner.next());
sb.append("\n");

69
src/Day01.java Normal file
View File

@@ -0,0 +1,69 @@
package src;
import java.io.FileReader;
import java.util.Scanner;
public class Day01 {
public static void main(String[] args) {
part1();
part2();
}
private static void part1() {
try (Scanner scanner = new Scanner(new FileReader("resources/inputs/01/input")).useDelimiter("\\R")) {
int dial = 50;
int password = 0;
while (scanner.hasNext()) {
String instruction = scanner.next();
int change = Integer.parseInt(instruction.substring(1));
switch (instruction.charAt(0)) {
case 'L' -> {
dial = (dial - change + 100) % 100;
}
case 'R' -> {
dial = (dial + change) % 100;
}
}
if (dial == 0) {
password += 1;
}
}
System.out.println(password);
} catch (Exception e) {
System.out.println(e.getMessage());
}
}
// this is the inefficient way to do it, but it's also accurate!
private static void part2() {
try (Scanner scanner = new Scanner(new FileReader("resources/inputs/01/input")).useDelimiter("\\R")) {
int dial = 50;
int password = 0;
while (scanner.hasNext()) {
String instruction = scanner.next();
int change = Integer.parseInt(instruction.substring(1));
switch (instruction.charAt(0)) {
case 'L' -> {
for (int i = 0; i < change; i++) {
dial = (dial - 101) % 100;
if (dial == 0) {
password += 1;
}
}
}
case 'R' -> {
for (int i = 0; i < change; i++) {
dial = (dial + 1) % 100;
if (dial == 0) {
password += 1;
}
}
}
}
}
System.out.println(password);
} catch (Exception e) {
System.out.println(e.getMessage());
}
}
}

10
today.sh
View File

@@ -1,6 +1,6 @@
#!/bin/bash
__year=2024
__year=2025
__day="${1}"
if [ "${__day}" == "" ]; then
@@ -8,15 +8,15 @@ if [ "${__day}" == "" ]; then
fi
padded=$(printf "%02g" ${__day})
mkdir -p ${padded}/inputs
touch ${padded}/inputs/testinput
if [ ! -f "${padded}/inputs/input" ]; then
mkdir -p src/resources/inputs/${padded}
touch src/resources/inputs/${padded}/testinput
if [ ! -f "src/resources/inputs/${padded}/input" ]; then
curl -s \
-A "https://git.yetaga.in/alazyreader/AdventOfCode${__year}/" \
-H "Cookie: session=`cat .cookie`" https://adventofcode.com/${__year}/day/${__day##0}/input > "src/resources/inputs/${padded}/input"
fi
if [ ! -f "src/Day${padded}.java" ]; then
cp main.java.tmpl src/Day${padded}.java
gsed -i '' "s/00/${padded}/g" src/Day${padded}.java
sed -i '' "s/00/${padded}/g" src/Day${padded}.java
fi
open "https://adventofcode.com/${__year}/day/${__day##0}"