Initial commit: AoC solutions 2023-2025

🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>
2025-12-02 10:39:09 +01:00
commit 549f0c4382
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+# Parse the grid into a dictionary of (y,x):c 
+data = open("inputs/day4.txt").readlines()
+H, W = len(data), len(data[0])-1
+grid = {(y,x):data[y][x] for y in range(H) for x in range(W)}
+
+# Part 1 - Find anything that says 'XMAS'
+TARGET = "XMAS"
+DELTAS = [(dy,dx) for dy in [-1,0,1] for dx in [-1,0,1] if (dx!=0 or dy!=0)]
+count = 0
+for y, x in grid:
+    for dy,dx in DELTAS:
+        candidate = "".join(grid.get((y+dy*i, x+dx*i),"") for i in range(len(TARGET)))
+        count += candidate == TARGET
+print("Part 1:", count)