「🎉」 init(2025): day 1

2024/day05/.envrc

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+use flake

2024/day05/flake.lock

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+{
+  "nodes": {
+    "nixpkgs": {
+      "flake": false,
+      "locked": {
+        "lastModified": 1733261153,
+        "narHash": "sha256-eq51hyiaIwtWo19fPEeE0Zr2s83DYMKJoukNLgGGpek=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "b681065d0919f7eb5309a93cea2cfa84dec9aa88",
+        "type": "github"
+      },
+      "original": {
+        "id": "nixpkgs",
+        "ref": "nixos-24.11",
+        "type": "indirect"
+      }
+    },
+    "root": {
+      "inputs": {
+        "nixpkgs": "nixpkgs"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}

2024/day05/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"
+        '';
+      };
+    };
+  };
+}

2024/day05/part1.py

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+import os
+import os.path
+
+def main():
+    res = 0
+    valid = 1
+
+    file_path = "./input.txt"
+    if (os.path.isfile(file_path)):
+        content = open(file_path, "r").read()
+    else:
+        content = "47|53\n97|13\n97|61\n97|47\n75|29\n61|13\n75|53\n29|13\n97|29\n53|29\n61|53\n97|53\n61|29\n47|13\n75|47\n97|75\n47|61\n75|61\n47|29\n75|13\n53|13\n\n75,47,61,53,29\n97,61,53,29,13\n75,29,13\n75,97,47,61,53\n61,13,29\n97,13,75,29,47"
+    grid = content.split('\n')
+    pages_part = grid[:grid.index("")]
+
+    for line in grid[grid.index("") + 1:]:
+        valid = 1
+        for num in line.split(','):
+            for page in pages_part:
+                if num in page:
+                    if page.split('|')[0] in line and page.split('|')[1] in line:
+                        if page.split('|')[1] not in line.split(',')[line.split(',').index(page.split('|')[0]):]:
+                            valid = 0
+        if valid:
+            res += int(line.split(',')[len(line.split(',')) // 2])
+
+    print(res)
+
+if __name__ == '__main__':
+    main()

2024/day05/part2.py

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+import os
+import os.path
+
+def is_incorrect(line, pages_part):
+    r = 0
+    for num in line.split(','):
+        for page in pages_part:
+            if num in page:
+                if page.split('|')[0] in line and page.split('|')[1] in line:
+                    if page.split('|')[1] not in line.split(',')[line.split(',').index(page.split('|')[0]):]:
+                        r = 1
+    return (r)
+
+def main():
+    res = 0
+    valid = 1
+
+    file_path = "./input.txt"
+    if (os.path.isfile(file_path)):
+        content = open(file_path, "r").read()
+    else:
+        content = "47|53\n97|13\n97|61\n97|47\n75|29\n61|13\n75|53\n29|13\n97|29\n53|29\n61|53\n97|53\n61|29\n47|13\n75|47\n97|75\n47|61\n75|61\n47|29\n75|13\n53|13\n\n75,47,61,53,29\n97,61,53,29,13\n75,29,13\n75,97,47,61,53\n61,13,29\n97,13,75,29,47"
+    grid = content.split('\n')
+    pages_part = grid[:grid.index("")]
+
+    for line in grid[grid.index("") + 1:]:
+        if not is_incorrect(line, pages_part):
+            continue
+        while is_incorrect(line, pages_part):
+            for num in line.split(','):
+                for page in pages_part:
+                    if num in page:
+                        if page.split('|')[0] in line and page.split('|')[1] in line:
+                            if page.split('|')[1] not in line.split(',')[line.split(',').index(page.split('|')[0]):]:
+                                new = line.split(',')
+                                i1 = new.index(page.split('|')[0])
+                                i2 = new.index(page.split('|')[1])
+                                new[i1], new[i2] = new[i2], new[i1]
+                                line = ','.join(new)
+        res += int(line.split(',')[len(line.split(',')) // 2])
+
+    print(res)
+
+
+if __name__ == '__main__':
+    main()