eoghanconlon73/AoC2024_Java
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day03 #1

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eoghanconlon73 merged 17 commits from day03 into main 2024-12-09 15:05:01 +00:00
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2 changed files with 54 additions and 0 deletions
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49
src/Day03.java
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@ -56,4 +56,53 @@ public class Day03 extends Input {
return rValue;
}
public int part1(){
int rValue = 0;
for(String input : this.input.getInput()) {
String pattern = "mul(";
String num1_s = "";
String num2_s = "";
String nums = "0123456789";
int num = 1;
int pattern_cnt = 0;
for (int i = 0; i < input.length(); i += 1) {
if (pattern_cnt != pattern.length()) {
if (input.charAt(i) == pattern.charAt(pattern_cnt)) {
pattern_cnt += 1;
} else {
pattern_cnt = 0;
}
} else {
if (nums.contains(Character.toString(input.charAt(i)))) {
if (num == 1) {
num1_s += input.charAt(i);
} else if (num == 2) {
num2_s += input.charAt(i);
} else {
System.err.println("Something went wrong");
}
} else if (input.charAt(i) == ',' && num == 1) {
num += 1;
} else if (input.charAt(i) == ')' && num == 2) {
int num1 = Integer.parseInt(num1_s);
int num2 = Integer.parseInt(num2_s);
rValue += (num1 * num2);
num = 1;
pattern_cnt = 0;
num1_s = "";
num2_s = "";
} else {
num = 1;
pattern_cnt = 0;
num1_s = "";
num2_s = "";
}
}
}
}
return rValue;
}
}

5
src/Main.java
View file

@ -32,6 +32,10 @@ public class Main {
int day03_p1_sample = day03.part1_sample();
long day03_p1_sample_t = System.currentTimeMillis() - start;
start = System.currentTimeMillis();
int day03_p1 = day03.part1();
long day03_p1_t = System.currentTimeMillis() - start;
System.out.printf("Day 1 init took %dms", day01_init);
System.out.printf("Part 1 sample is: %d (%dms)\n", sample_d1_p1_answer, day01_p1_sample);
System.out.printf("Part 1 answer is: %d (%dms)\n", d1_p1_answer, day01_p1);
@ -40,5 +44,6 @@ public class Main {
System.out.printf("Day 3 init took %dms\n", day03_init);
System.out.printf("Day 3 part 1 (sample): %d (%dms)\n", day03_p1_sample, day03_p1_sample_t);
System.out.printf("Day 3 part 2 : %d (%dms)", day03_p1, day03_p1_t);
}
}