Update tags

Author: code-shoily

README.md

@@ -38,7 +38,7 @@ If you want to update the `README.md` (i.e. this file) please do not update `REA
 Note: All files mentioned above are autogenerated and are created by running `python3 scripts/gen_wiki.py`.
 
 <!-- STATS_START -->
-> **164 problems solved** across **11 years** — [Tags](wiki/tags/index.md) · [Difficulty](wiki/difficulty.md)
+> **165 problems solved** across **11 years** — [Tags](wiki/tags/index.md) · [Difficulty](wiki/difficulty.md)
 
 **Years:** [2015](lib/2015/README.md) | [2016](lib/2016/README.md) | [2017](lib/2017/README.md) | [2018](lib/2018/README.md) | [2019](lib/2019/README.md) | [2020](lib/2020/README.md) | [2021](lib/2021/README.md) | [2022](lib/2022/README.md) | [2023](lib/2023/README.md) | [2024](lib/2024/README.md) | [2025](lib/2025/README.md)
 
@@ -47,7 +47,7 @@ Note: All files mentioned above are autogenerated and are created by running `py
 | 1 | [⭐](https://adventofcode.com/2015/day/1) | [⭐](https://adventofcode.com/2016/day/1) | [⭐](https://adventofcode.com/2017/day/1) | [⭐](https://adventofcode.com/2018/day/1) | [⭐](https://adventofcode.com/2019/day/1) | [⭐](https://adventofcode.com/2020/day/1) | [⭐](https://adventofcode.com/2021/day/1) | [⭐](https://adventofcode.com/2022/day/1) | [⭐](https://adventofcode.com/2023/day/1) | [⭐](https://adventofcode.com/2024/day/1) |   |
 | 2 | [⭐](https://adventofcode.com/2015/day/2) | [⭐](https://adventofcode.com/2016/day/2) | [⭐](https://adventofcode.com/2017/day/2) | [⭐](https://adventofcode.com/2018/day/2) | [⭐](https://adventofcode.com/2019/day/2) | [⭐](https://adventofcode.com/2020/day/2) | [⭐](https://adventofcode.com/2021/day/2) | [⭐](https://adventofcode.com/2022/day/2) | [⭐](https://adventofcode.com/2023/day/2) |   |   |
 | 3 | [⭐](https://adventofcode.com/2015/day/3) | [⭐](https://adventofcode.com/2016/day/3) | [⭐](https://adventofcode.com/2017/day/3) | [⭐](https://adventofcode.com/2018/day/3) | [⭐](https://adventofcode.com/2019/day/3) | [⭐](https://adventofcode.com/2020/day/3) | [⭐](https://adventofcode.com/2021/day/3) | [⭐](https://adventofcode.com/2022/day/3) | [⭐](https://adventofcode.com/2023/day/3) | [⭐](https://adventofcode.com/2024/day/3) |   |
-| 4 | [⭐](https://adventofcode.com/2015/day/4) | [⭐](https://adventofcode.com/2016/day/4) | [⭐](https://adventofcode.com/2017/day/4) | [⭐](https://adventofcode.com/2018/day/4) | [⭐](https://adventofcode.com/2019/day/4) | [⭐](https://adventofcode.com/2020/day/4) | [⭐](https://adventofcode.com/2021/day/4) | [⭐](https://adventofcode.com/2022/day/4) | [⭐](https://adventofcode.com/2023/day/4) |   |   |
+| 4 | [⭐](https://adventofcode.com/2015/day/4) | [⭐](https://adventofcode.com/2016/day/4) | [⭐](https://adventofcode.com/2017/day/4) | [⭐](https://adventofcode.com/2018/day/4) | [⭐](https://adventofcode.com/2019/day/4) | [⭐](https://adventofcode.com/2020/day/4) | [⭐](https://adventofcode.com/2021/day/4) | [⭐](https://adventofcode.com/2022/day/4) | [⭐](https://adventofcode.com/2023/day/4) |   | [⭐](https://adventofcode.com/2025/day/4) |
 | 5 | [⭐](https://adventofcode.com/2015/day/5) | [⭐](https://adventofcode.com/2016/day/5) | [⭐](https://adventofcode.com/2017/day/5) | [⭐](https://adventofcode.com/2018/day/5) | [⭐](https://adventofcode.com/2019/day/5) | [⭐](https://adventofcode.com/2020/day/5) | [⭐](https://adventofcode.com/2021/day/5) | [⭐](https://adventofcode.com/2022/day/5) | [⭐](https://adventofcode.com/2023/day/5) | [⭐](https://adventofcode.com/2024/day/5) |   |
 | 6 | [⭐](https://adventofcode.com/2015/day/6) | [⭐](https://adventofcode.com/2016/day/6) | [⭐](https://adventofcode.com/2017/day/6) | [⭐](https://adventofcode.com/2018/day/6) | [⭐](https://adventofcode.com/2019/day/6) | [⭐](https://adventofcode.com/2020/day/6) | [⭐](https://adventofcode.com/2021/day/6) | [⭐](https://adventofcode.com/2022/day/6) | [⭐](https://adventofcode.com/2023/day/6) |   |   |
 | 7 |   | [⭐](https://adventofcode.com/2016/day/7) | [⭐](https://adventofcode.com/2017/day/7) | [⭐](https://adventofcode.com/2018/day/7) |   | [⭐](https://adventofcode.com/2020/day/7) | [⭐](https://adventofcode.com/2021/day/7) | [⭐](https://adventofcode.com/2022/day/7) | [⭐](https://adventofcode.com/2023/day/7) |   | [⭐](https://adventofcode.com/2025/day/7) |
@@ -72,7 +72,7 @@ Note: All files mentioned above are autogenerated and are created by running `py
 
 ### 🏷️ Tags
 
-[grid](wiki/tags/grid.md)&nbsp;`27`  [sequence](wiki/tags/sequence.md)&nbsp;`25`  [graph](wiki/tags/graph.md)&nbsp;`21`  [set](wiki/tags/set.md)&nbsp;`16`  [slow](wiki/tags/slow.md)&nbsp;`16`  [rust](wiki/tags/rust.md)&nbsp;`15`  [not-fast-enough](wiki/tags/not-fast-enough.md)&nbsp;`13`  [op-code](wiki/tags/op-code.md)&nbsp;`12`  [erlang](wiki/tags/erlang.md)&nbsp;`10`  [recursion](wiki/tags/recursion.md)&nbsp;`8`  [reduction](wiki/tags/reduction.md)&nbsp;`8`  [walk](wiki/tags/walk.md)&nbsp;`7`  [half-done](wiki/tags/half-done.md)&nbsp;`6`  [vector](wiki/tags/vector.md)&nbsp;`6`  [arithmetic](wiki/tags/arithmetic.md)&nbsp;`5`  [count](wiki/tags/count.md)&nbsp;`5`  [geometry2d](wiki/tags/geometry2d.md)&nbsp;`5`  [memoization](wiki/tags/memoization.md)&nbsp;`5`  [random-access](wiki/tags/random-access.md)&nbsp;`5`  [regex](wiki/tags/regex.md)&nbsp;`5`  [shortest-path](wiki/tags/shortest-path.md)&nbsp;`5`  [validation](wiki/tags/validation.md)&nbsp;`5`  [bitwise](wiki/tags/bitwise.md)&nbsp;`4`  [map](wiki/tags/map.md)&nbsp;`4`  [matrix](wiki/tags/matrix.md)&nbsp;`4`  [measurement](wiki/tags/measurement.md)&nbsp;`4`  [modular-arithmetic](wiki/tags/modular-arithmetic.md)&nbsp;`4`  [needs-improvement](wiki/tags/needs-improvement.md)&nbsp;`4`  [optimization](wiki/tags/optimization.md)&nbsp;`4`  [parse-heavy](wiki/tags/parse-heavy.md)&nbsp;`4`  [range](wiki/tags/range.md)&nbsp;`4`  [sliding-window](wiki/tags/sliding-window.md)&nbsp;`4`  [annoying](wiki/tags/annoying.md)&nbsp;`3`  [calculation](wiki/tags/calculation.md)&nbsp;`3`  [combinatorics](wiki/tags/combinatorics.md)&nbsp;`3`  [connectivity](wiki/tags/connectivity.md)&nbsp;`3`  [dijkstra](wiki/tags/dijkstra.md)&nbsp;`3`  [geometry](wiki/tags/geometry.md)&nbsp;`3`  [hash](wiki/tags/hash.md)&nbsp;`3`  [implicit-graph](wiki/tags/implicit-graph.md)&nbsp;`3`  [large-number](wiki/tags/large-number.md)&nbsp;`3`  [linked-list](wiki/tags/linked-list.md)&nbsp;`3`  [number-theory](wiki/tags/number-theory.md)&nbsp;`3`  [revisit](wiki/tags/revisit.md)&nbsp;`3`  [rotation](wiki/tags/rotation.md)&nbsp;`3`  [sort](wiki/tags/sort.md)&nbsp;`3`  [visual-result](wiki/tags/visual-result.md)&nbsp;`3`  [a-star](wiki/tags/a-star.md)&nbsp;`2`  [bfs](wiki/tags/bfs.md)&nbsp;`2`  [checksum](wiki/tags/checksum.md)&nbsp;`2`  [circular-linked-list](wiki/tags/circular-linked-list.md)&nbsp;`2`  [dynamic-programming](wiki/tags/dynamic-programming.md)&nbsp;`2`  [emulation](wiki/tags/emulation.md)&nbsp;`2`  [flood-fill](wiki/tags/flood-fill.md)&nbsp;`2`  [fsm](wiki/tags/fsm.md)&nbsp;`2`  [geometry3d](wiki/tags/geometry3d.md)&nbsp;`2`  [graph-traversal](wiki/tags/graph-traversal.md)&nbsp;`2`  [hexagon](wiki/tags/hexagon.md)&nbsp;`2`  [int-code](wiki/tags/int-code.md)&nbsp;`2`  [json](wiki/tags/json.md)&nbsp;`2`  [md5](wiki/tags/md5.md)&nbsp;`2`  [pattern-matching](wiki/tags/pattern-matching.md)&nbsp;`2`  [routing](wiki/tags/routing.md)&nbsp;`2`  [simulation](wiki/tags/simulation.md)&nbsp;`2`  [stack](wiki/tags/stack.md)&nbsp;`2`  [string](wiki/tags/string.md)&nbsp;`2`  [string-encoding](wiki/tags/string-encoding.md)&nbsp;`2`  [table-lookup](wiki/tags/table-lookup.md)&nbsp;`2`  [topological-sort](wiki/tags/topological-sort.md)&nbsp;`2`  [unfold](wiki/tags/unfold.md)&nbsp;`2`  [algebra](wiki/tags/algebra.md)&nbsp;`1`  [ambiguous-solution](wiki/tags/ambiguous-solution.md)&nbsp;`1`  [binary-search](wiki/tags/binary-search.md)&nbsp;`1`  [binary-space](wiki/tags/binary-space.md)&nbsp;`1`  [bitmask](wiki/tags/bitmask.md)&nbsp;`1`  [bron-kerbosch](wiki/tags/bron-kerbosch.md)&nbsp;`1`  [brute-force](wiki/tags/brute-force.md)&nbsp;`1`  [char-sequence](wiki/tags/char-sequence.md)&nbsp;`1`  [chinese-remainder](wiki/tags/chinese-remainder.md)&nbsp;`1`  [clique](wiki/tags/clique.md)&nbsp;`1`  [concurrency](wiki/tags/concurrency.md)&nbsp;`1`  [constellation](wiki/tags/constellation.md)&nbsp;`1`  [data-modelling](wiki/tags/data-modelling.md)&nbsp;`1`  [date-time](wiki/tags/date-time.md)&nbsp;`1`  [dfs](wiki/tags/dfs.md)&nbsp;`1`  [digraph](wiki/tags/digraph.md)&nbsp;`1`  [disjoint-set](wiki/tags/disjoint-set.md)&nbsp;`1`  [double-parse](wiki/tags/double-parse.md)&nbsp;`1`  [floyd-warshall](wiki/tags/floyd-warshall.md)&nbsp;`1`  [game](wiki/tags/game.md)&nbsp;`1`  [gb-tree](wiki/tags/gb-tree.md)&nbsp;`1`  [graph-route](wiki/tags/graph-route.md)&nbsp;`1`  [grid-traversal](wiki/tags/grid-traversal.md)&nbsp;`1`  [hard-description](wiki/tags/hard-description.md)&nbsp;`1`  [infinite-sequence](wiki/tags/infinite-sequence.md)&nbsp;`1`  [inline-input](wiki/tags/inline-input.md)&nbsp;`1`  [johnsons-algorithm](wiki/tags/johnsons-algorithm.md)&nbsp;`1`  [lan-party](wiki/tags/lan-party.md)&nbsp;`1`  [list](wiki/tags/list.md)&nbsp;`1`  [live-book](wiki/tags/live-book.md)&nbsp;`1`  [longest-path](wiki/tags/longest-path.md)&nbsp;`1`  [mask](wiki/tags/mask.md)&nbsp;`1`  [maximum-clique](wiki/tags/maximum-clique.md)&nbsp;`1`  [min-cut](wiki/tags/min-cut.md)&nbsp;`1`  [number-system](wiki/tags/number-system.md)&nbsp;`1`  [operator-precedence](wiki/tags/operator-precedence.md)&nbsp;`1`  [ordered-map](wiki/tags/ordered-map.md)&nbsp;`1`  [palindrome](wiki/tags/palindrome.md)&nbsp;`1`  [parser](wiki/tags/parser.md)&nbsp;`1`  [partitioning](wiki/tags/partitioning.md)&nbsp;`1`  [path-finding](wiki/tags/path-finding.md)&nbsp;`1`  [power-set](wiki/tags/power-set.md)&nbsp;`1`  [quadratic](wiki/tags/quadratic.md)&nbsp;`1`  [quadratic-time](wiki/tags/quadratic-time.md)&nbsp;`1`  [refactor](wiki/tags/refactor.md)&nbsp;`1`  [spiral](wiki/tags/spiral.md)&nbsp;`1`  [state-space](wiki/tags/state-space.md)&nbsp;`1`  [state-space-search](wiki/tags/state-space-search.md)&nbsp;`1`  [strategy](wiki/tags/strategy.md)&nbsp;`1`  [string-result](wiki/tags/string-result.md)&nbsp;`1`  [surface](wiki/tags/surface.md)&nbsp;`1`  [traversal](wiki/tags/traversal.md)&nbsp;`1`  [tree](wiki/tags/tree.md)&nbsp;`1`  [trigonometry](wiki/tags/trigonometry.md)&nbsp;`1`  [tsp](wiki/tags/tsp.md)&nbsp;`1`  [union-find](wiki/tags/union-find.md)&nbsp;`1`  [visualized](wiki/tags/visualized.md)&nbsp;`1`  [walk3d](wiki/tags/walk3d.md)&nbsp;`1`
+[grid](wiki/tags/grid.md)&nbsp;`28`  [sequence](wiki/tags/sequence.md)&nbsp;`25`  [graph](wiki/tags/graph.md)&nbsp;`22`  [set](wiki/tags/set.md)&nbsp;`16`  [slow](wiki/tags/slow.md)&nbsp;`16`  [rust](wiki/tags/rust.md)&nbsp;`15`  [not-fast-enough](wiki/tags/not-fast-enough.md)&nbsp;`13`  [op-code](wiki/tags/op-code.md)&nbsp;`12`  [erlang](wiki/tags/erlang.md)&nbsp;`10`  [recursion](wiki/tags/recursion.md)&nbsp;`8`  [reduction](wiki/tags/reduction.md)&nbsp;`8`  [walk](wiki/tags/walk.md)&nbsp;`7`  [half-done](wiki/tags/half-done.md)&nbsp;`6`  [vector](wiki/tags/vector.md)&nbsp;`6`  [arithmetic](wiki/tags/arithmetic.md)&nbsp;`5`  [count](wiki/tags/count.md)&nbsp;`5`  [geometry2d](wiki/tags/geometry2d.md)&nbsp;`5`  [memoization](wiki/tags/memoization.md)&nbsp;`5`  [random-access](wiki/tags/random-access.md)&nbsp;`5`  [regex](wiki/tags/regex.md)&nbsp;`5`  [shortest-path](wiki/tags/shortest-path.md)&nbsp;`5`  [validation](wiki/tags/validation.md)&nbsp;`5`  [bitwise](wiki/tags/bitwise.md)&nbsp;`4`  [map](wiki/tags/map.md)&nbsp;`4`  [matrix](wiki/tags/matrix.md)&nbsp;`4`  [measurement](wiki/tags/measurement.md)&nbsp;`4`  [modular-arithmetic](wiki/tags/modular-arithmetic.md)&nbsp;`4`  [needs-improvement](wiki/tags/needs-improvement.md)&nbsp;`4`  [optimization](wiki/tags/optimization.md)&nbsp;`4`  [parse-heavy](wiki/tags/parse-heavy.md)&nbsp;`4`  [range](wiki/tags/range.md)&nbsp;`4`  [sliding-window](wiki/tags/sliding-window.md)&nbsp;`4`  [annoying](wiki/tags/annoying.md)&nbsp;`3`  [calculation](wiki/tags/calculation.md)&nbsp;`3`  [combinatorics](wiki/tags/combinatorics.md)&nbsp;`3`  [connectivity](wiki/tags/connectivity.md)&nbsp;`3`  [dijkstra](wiki/tags/dijkstra.md)&nbsp;`3`  [geometry](wiki/tags/geometry.md)&nbsp;`3`  [hash](wiki/tags/hash.md)&nbsp;`3`  [implicit-graph](wiki/tags/implicit-graph.md)&nbsp;`3`  [large-number](wiki/tags/large-number.md)&nbsp;`3`  [linked-list](wiki/tags/linked-list.md)&nbsp;`3`  [number-theory](wiki/tags/number-theory.md)&nbsp;`3`  [revisit](wiki/tags/revisit.md)&nbsp;`3`  [rotation](wiki/tags/rotation.md)&nbsp;`3`  [simulation](wiki/tags/simulation.md)&nbsp;`3`  [sort](wiki/tags/sort.md)&nbsp;`3`  [visual-result](wiki/tags/visual-result.md)&nbsp;`3`  [a-star](wiki/tags/a-star.md)&nbsp;`2`  [bfs](wiki/tags/bfs.md)&nbsp;`2`  [checksum](wiki/tags/checksum.md)&nbsp;`2`  [circular-linked-list](wiki/tags/circular-linked-list.md)&nbsp;`2`  [dynamic-programming](wiki/tags/dynamic-programming.md)&nbsp;`2`  [emulation](wiki/tags/emulation.md)&nbsp;`2`  [flood-fill](wiki/tags/flood-fill.md)&nbsp;`2`  [fsm](wiki/tags/fsm.md)&nbsp;`2`  [geometry3d](wiki/tags/geometry3d.md)&nbsp;`2`  [graph-traversal](wiki/tags/graph-traversal.md)&nbsp;`2`  [hexagon](wiki/tags/hexagon.md)&nbsp;`2`  [int-code](wiki/tags/int-code.md)&nbsp;`2`  [json](wiki/tags/json.md)&nbsp;`2`  [md5](wiki/tags/md5.md)&nbsp;`2`  [pattern-matching](wiki/tags/pattern-matching.md)&nbsp;`2`  [routing](wiki/tags/routing.md)&nbsp;`2`  [stack](wiki/tags/stack.md)&nbsp;`2`  [string](wiki/tags/string.md)&nbsp;`2`  [string-encoding](wiki/tags/string-encoding.md)&nbsp;`2`  [table-lookup](wiki/tags/table-lookup.md)&nbsp;`2`  [topological-sort](wiki/tags/topological-sort.md)&nbsp;`2`  [unfold](wiki/tags/unfold.md)&nbsp;`2`  [algebra](wiki/tags/algebra.md)&nbsp;`1`  [ambiguous-solution](wiki/tags/ambiguous-solution.md)&nbsp;`1`  [binary-search](wiki/tags/binary-search.md)&nbsp;`1`  [binary-space](wiki/tags/binary-space.md)&nbsp;`1`  [bitmask](wiki/tags/bitmask.md)&nbsp;`1`  [bron-kerbosch](wiki/tags/bron-kerbosch.md)&nbsp;`1`  [brute-force](wiki/tags/brute-force.md)&nbsp;`1`  [char-sequence](wiki/tags/char-sequence.md)&nbsp;`1`  [chinese-remainder](wiki/tags/chinese-remainder.md)&nbsp;`1`  [clique](wiki/tags/clique.md)&nbsp;`1`  [concurrency](wiki/tags/concurrency.md)&nbsp;`1`  [constellation](wiki/tags/constellation.md)&nbsp;`1`  [data-modelling](wiki/tags/data-modelling.md)&nbsp;`1`  [date-time](wiki/tags/date-time.md)&nbsp;`1`  [dfs](wiki/tags/dfs.md)&nbsp;`1`  [digraph](wiki/tags/digraph.md)&nbsp;`1`  [disjoint-set](wiki/tags/disjoint-set.md)&nbsp;`1`  [double-parse](wiki/tags/double-parse.md)&nbsp;`1`  [floyd-warshall](wiki/tags/floyd-warshall.md)&nbsp;`1`  [game](wiki/tags/game.md)&nbsp;`1`  [gb-tree](wiki/tags/gb-tree.md)&nbsp;`1`  [graph-route](wiki/tags/graph-route.md)&nbsp;`1`  [grid-traversal](wiki/tags/grid-traversal.md)&nbsp;`1`  [hard-description](wiki/tags/hard-description.md)&nbsp;`1`  [infinite-sequence](wiki/tags/infinite-sequence.md)&nbsp;`1`  [inline-input](wiki/tags/inline-input.md)&nbsp;`1`  [johnsons-algorithm](wiki/tags/johnsons-algorithm.md)&nbsp;`1`  [lan-party](wiki/tags/lan-party.md)&nbsp;`1`  [list](wiki/tags/list.md)&nbsp;`1`  [live-book](wiki/tags/live-book.md)&nbsp;`1`  [longest-path](wiki/tags/longest-path.md)&nbsp;`1`  [mask](wiki/tags/mask.md)&nbsp;`1`  [maximum-clique](wiki/tags/maximum-clique.md)&nbsp;`1`  [min-cut](wiki/tags/min-cut.md)&nbsp;`1`  [number-system](wiki/tags/number-system.md)&nbsp;`1`  [operator-precedence](wiki/tags/operator-precedence.md)&nbsp;`1`  [ordered-map](wiki/tags/ordered-map.md)&nbsp;`1`  [palindrome](wiki/tags/palindrome.md)&nbsp;`1`  [parser](wiki/tags/parser.md)&nbsp;`1`  [partitioning](wiki/tags/partitioning.md)&nbsp;`1`  [path-finding](wiki/tags/path-finding.md)&nbsp;`1`  [power-set](wiki/tags/power-set.md)&nbsp;`1`  [quadratic](wiki/tags/quadratic.md)&nbsp;`1`  [quadratic-time](wiki/tags/quadratic-time.md)&nbsp;`1`  [refactor](wiki/tags/refactor.md)&nbsp;`1`  [spiral](wiki/tags/spiral.md)&nbsp;`1`  [state-space](wiki/tags/state-space.md)&nbsp;`1`  [state-space-search](wiki/tags/state-space-search.md)&nbsp;`1`  [strategy](wiki/tags/strategy.md)&nbsp;`1`  [string-result](wiki/tags/string-result.md)&nbsp;`1`  [surface](wiki/tags/surface.md)&nbsp;`1`  [traversal](wiki/tags/traversal.md)&nbsp;`1`  [tree](wiki/tags/tree.md)&nbsp;`1`  [trigonometry](wiki/tags/trigonometry.md)&nbsp;`1`  [tsp](wiki/tags/tsp.md)&nbsp;`1`  [union-find](wiki/tags/union-find.md)&nbsp;`1`  [visualized](wiki/tags/visualized.md)&nbsp;`1`  [walk3d](wiki/tags/walk3d.md)&nbsp;`1`
 <!-- STATS_END -->
 
 

lib/2025/README.md

@@ -2,11 +2,12 @@
 
 [Home](../../README.md) | [2015](../2015/README.md) | [2016](../2016/README.md) | [2017](../2017/README.md) | [2018](../2018/README.md) | [2019](../2019/README.md) | [2020](../2020/README.md) | [2021](../2021/README.md) | [2022](../2022/README.md) | [2023](../2023/README.md) | [2024](../2024/README.md) | 2025
 
-## ⭐ 4/50
+## ⭐ 6/50
 
-[dynamic-programming](../../wiki/tags/dynamic-programming.md) `1`  [grid](../../wiki/tags/grid.md) `1`  [union-find](../../wiki/tags/union-find.md) `1`
+[grid](../../wiki/tags/grid.md) `2`  [dynamic-programming](../../wiki/tags/dynamic-programming.md) `1`  [graph](../../wiki/tags/graph.md) `1`  [simulation](../../wiki/tags/simulation.md) `1`  [union-find](../../wiki/tags/union-find.md) `1`
 
 | Day | Title | Difficulty | Tags | Source |
 |:---:|-------|:----------:|------|--------|
+| [4](https://adventofcode.com/2025/day/4) | [Printing Department](https://adventofcode.com/2025/day/4) | 🟠 | [simulation](../../wiki/tags/simulation.md), [grid](../../wiki/tags/grid.md), [graph](../../wiki/tags/graph.md) | [day_04.ex](day_04.ex) |
 | [7](https://adventofcode.com/2025/day/7) | [Laboratories](https://adventofcode.com/2025/day/7) | 🔴 | [grid](../../wiki/tags/grid.md), [dynamic-programming](../../wiki/tags/dynamic-programming.md) | [day_07.ex](day_07.ex) |
 | [8](https://adventofcode.com/2025/day/8) | [Playground](https://adventofcode.com/2025/day/8) | 🟡 | [union-find](../../wiki/tags/union-find.md) | [day_08.ex](day_08.ex) |

wiki/difficulty.md

@@ -148,6 +148,7 @@
 | 2024 | [12](https://adventofcode.com/2024/day/12) | [Garden Groups](https://adventofcode.com/2024/day/12) | [geometry](tags/geometry.md), [disjoint-set](tags/disjoint-set.md) | [day_12.ex](../lib/2024/day_12.ex) |
 | 2024 | [18](https://adventofcode.com/2024/day/18) | [RAM Run](https://adventofcode.com/2024/day/18) | [graph](tags/graph.md), [shortest-path](tags/shortest-path.md), [binary-search](tags/binary-search.md), [dijkstra](tags/dijkstra.md), [grid-traversal](tags/grid-traversal.md) | [day_18.ex](../lib/2024/day_18.ex) |
 | 2024 | [23](https://adventofcode.com/2024/day/23) | [LAN Party](https://adventofcode.com/2024/day/23) | [graph](tags/graph.md), [clique](tags/clique.md), [bron-kerbosch](tags/bron-kerbosch.md), [maximum-clique](tags/maximum-clique.md), [lan-party](tags/lan-party.md) | [day_23.ex](../lib/2024/day_23.ex) |
+| 2025 | [4](https://adventofcode.com/2025/day/4) | [Printing Department](https://adventofcode.com/2025/day/4) | [simulation](tags/simulation.md), [grid](tags/grid.md), [graph](tags/graph.md) | [day_04.ex](../lib/2025/day_04.ex) |
 
 ## 🔴 L
 

wiki/tags/graph.md

@@ -25,3 +25,4 @@
 | 2024 | [5](https://adventofcode.com/2024/day/5) | [Print Queue](https://adventofcode.com/2024/day/5) | 🟢 | [topological-sort](topological-sort.md), [sort](sort.md) | [day_05.ex](../../lib/2024/day_05.ex) |
 | 2024 | [18](https://adventofcode.com/2024/day/18) | [RAM Run](https://adventofcode.com/2024/day/18) | 🟠 | [shortest-path](shortest-path.md), [binary-search](binary-search.md), [dijkstra](dijkstra.md), [grid-traversal](grid-traversal.md) | [day_18.ex](../../lib/2024/day_18.ex) |
 | 2024 | [23](https://adventofcode.com/2024/day/23) | [LAN Party](https://adventofcode.com/2024/day/23) | 🟠 | [clique](clique.md), [bron-kerbosch](bron-kerbosch.md), [maximum-clique](maximum-clique.md), [lan-party](lan-party.md) | [day_23.ex](../../lib/2024/day_23.ex) |
+| 2025 | [4](https://adventofcode.com/2025/day/4) | [Printing Department](https://adventofcode.com/2025/day/4) | 🟠 | [simulation](simulation.md), [grid](grid.md) | [day_04.ex](../../lib/2025/day_04.ex) |