「✨」 feat(day5): i hate part2 :smadge:

.envrc

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+use flake

.gitignore

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+.direnv/

2025/05/part1.py

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+import os
+
+if (os.path.isfile("./input")):
+    input = open("./input", "r").read()
+else:
+    input = "3-5\n10-14\n16-20\n12-18\n\n1\n5\n8\n11\n17\n32\n"
+
+input = input[:-1]
+
+isList = True
+fresh = []
+c = 0
+for line in input.split('\n'):
+    if (line == ""):
+        isList = False
+        continue
+
+    if (isList):
+        fresh.append([int(line.split('-')[0]), int(line.split('-')[1])])
+
+    if (not isList):
+        for f in fresh:
+            if (int(line) >= f[0] and int(line) <= f[1]):
+                c += 1
+                break
+
+print(c)

2025/05/part2.py

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+import os
+
+if (os.path.isfile("./input")):
+    input = open("./input", "r").read()
+else:
+    input = "3-5\n10-14\n16-20\n12-18\n\n"
+
+#input = input[:-1]
+
+fresh = []
+c = 0
+
+for line in input.split('\n'):
+    if (line == ""):
+        break
+
+    s = int(line.split('-')[0])
+    e = int(line.split('-')[1])
+
+    for f in fresh:
+        if (f[0] <= s <= f[1]):
+            s = f[1] + 1;
+        if (f[0] <= e <= f[1]):
+            e = f[0] - 1;
+
+    if (s > e):
+        continue
+    fresh.append([s, e])
+    fresh.sort()
+    c += (e - s) + 1
+
+print(c)
+
+ranges = []
+for line in input.split("\n"):
+    if line == "":
+        break
+    ranges.append([int(line.split('-')[0]), int(line.split('-')[1])])
+
+ranges.sort()
+
+merged = []
+for s, e in ranges:
+    if not merged or s > merged[-1][1] + 1:
+        merged.append([s, e])
+    else:
+        merged[-1][1] = max(merged[-1][1], e)
+
+c = sum(e - s + 1 for s, e in merged)
+
+print(c)

flake.lock

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+{
+  "nodes": {
+    "nixpkgs": {
+      "flake": false,
+      "locked": {
+        "lastModified": 1751274312,
+        "narHash": "sha256-/bVBlRpECLVzjV19t5KMdMFWSwKLtb5RyXdjz3LJT+g=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "50ab793786d9de88ee30ec4e4c24fb4236fc2674",
+        "type": "github"
+      },
+      "original": {
+        "id": "nixpkgs",
+        "ref": "nixos-24.11",
+        "type": "indirect"
+      }
+    },
+    "root": {
+      "inputs": {
+        "nixpkgs": "nixpkgs"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}

flake.nix

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+{
+  description = "a test development environment for python";
+
+  inputs = {
+
+    nixpkgs = {
+      url = "nixpkgs/nixos-24.11";
+      flake = false;
+	};
+
+  };
+
+  outputs = inputs@{ nixpkgs, ... }:
+	{
+    devShell = {
+      x86_64-linux = let
+        pkgs = import nixpkgs { system = "x86_64-linux"; };
+      in pkgs.mkShell {
+        packages = with pkgs; [
+          gcc python3
+        ];
+        shellHook = ''
+          echo -e "\x1B[0;33mentering python test development environment...\x1B[0m"
+        '';
+      };
+    };
+  };
+}