2023 day 4 but 3x faster

2023/01/part1.py

@@ -0,0 +1,15 @@
+#!/usr/bin/env python3
+
+import os
+path = os.path.dirname(os.path.abspath(__file__))
+
+nums = []
+
+with open(path+'/filtered.txt', 'r') as input:
+    for text in input.readlines():
+        a = int(text[0])
+        b = int(text[-2])
+        nums.append((10*a) + b)
+
+print(nums)
+print(sum(nums))

2023/01/part2.py

@@ -0,0 +1,58 @@
+#!/usr/bin/env python3
+
+# 52746 too low
+
+import os
+import re
+
+path = os.path.dirname(os.path.abspath(__file__))
+
+nums = []
+
+def toInt(txt: str):
+    try:
+        num = int(txt)
+    except:
+        if txt == 'one':
+            num = 1
+        elif txt == 'two':
+            num = 2
+        elif txt == 'three':
+            num = 3
+        elif txt == 'four':
+            num = 4
+        elif txt == 'five':
+            num = 5
+        elif txt == 'six':
+            num = 6
+        elif txt == 'seven':
+            num = 7
+        elif txt == 'eight':
+            num = 8
+        elif txt == 'nine':
+            num = 9
+    finally:
+        return num
+
+with open(path+'/input.txt', 'r') as input:
+    for text in input.readlines():
+        text = text.strip()
+
+        print('original:',text)
+
+        left = re.findall(r"(?=(one|two|three|four|five|six|seven|eight|nine|1|2|3|4|5|6|7|8|9))", text)
+
+        print('search:',left)
+
+        a = toInt(left[0])
+        b = toInt(left[-1])
+
+        print(a, b)
+
+        total = (10*a) + b
+
+        print('total:',total)
+
+        nums.append(total)
+
+print(sum(nums))

2023/04/part2-fast/main.go

@@ -0,0 +1,86 @@
+package main
+
+import (
+	"bufio"
+	"fmt"
+	"os"
+	"strings"
+)
+
+func main() {
+	reader := bufio.NewReader(os.Stdin)
+
+
+	lines := []string{}
+
+	for text, err := reader.ReadString('\n'); err == nil; text, err = reader.ReadString('\n') {
+		lines = append(lines, text)
+	}
+
+	size := len(lines)
+
+	fmt.Printf("%v lines\n", size)
+
+	linepoints := make([]int, size)
+
+	for i, text := range lines {
+		amt := score(text)
+		fmt.Printf("%v %v\n", text, amt)
+		linepoints[i] = amt
+	}
+
+	const maxPoints = 10
+
+	newTot := 0;
+	mults := make([]int, size)
+
+	for line, points := range linepoints {
+
+		mul := 1
+		for i := line - maxPoints; i < line; i++ {
+			if i < 0 {
+				continue
+			}
+			end := i + linepoints[i]
+			if end >= line {
+				mul += mults[i]
+			}
+		}
+		mults[line] = mul
+
+		newTot += mul
+		fmt.Printf("%v | +%v = %v \n", points, mul, newTot)
+	}
+
+	fmt.Printf("total cards: %v", newTot)
+
+}
+
+func score(text string) int {
+	amt := 0
+
+	text = strings.Trim(text, "\n")
+
+	gameStr := strings.ReplaceAll(strings.Split(text, ": ")[1], "  ", " ")
+
+	nums := strings.Split(gameStr, " | ")
+
+	winners := strings.Split(nums[0], " ")
+	draw := strings.Split(nums[1], " ")
+
+	for _, n := range draw {
+		match := false
+		for _, w := range winners {
+			match = n == w
+			if match {
+				break
+			}
+		}
+		if match {
+			amt++
+		}
+	}
+
+	return amt
+}
+

2023/04/part2/main.go

@@ -19,7 +19,7 @@ func main() {
 		text = strings.Trim(text, "\n")
 		points := score(text);
 
-		fmt.Printf("%v: %v\n", text, points);
+		// fmt.Printf("%v: %v\n", text, points);
 
 		newMultipliers := []int{};
 		for i := range multipliers {
@@ -36,7 +36,7 @@ func main() {
 		}
 
 		total += multiplier;
-		fmt.Printf("+%v = %v\n", multiplier, total);
+		fmt.Printf("%v | +%v = %v\n", points, multiplier, total);
 	}
 
 	fmt.Printf("total cards: %v", total);

2023/06/go.mod

@@ -1,3 +1,3 @@
-module tristans.cloud/aoc
+module tristans.cloud/aoc/2023/06
 
 go 1.20

go.work

@@ -1,7 +1,11 @@
 go 1.21.4
 
 use (
-	2023/10
+	2023/04
-	2023/09
+	2023/05
+	2023/06
+	2023/07
 	2023/08
+	2023/09
+	2023/10
 )