initial

.gitignore

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+/target

Cargo.lock

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+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 4
+
+[[package]]
+name = "blue-uncurse"
+version = "0.1.0"

Cargo.toml

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+[package]
+name = "blue-uncurse"
+version = "0.1.0"
+edition = "2024"
+
+[dependencies]

README.md

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+# blue uncurse
+output lines of less than 2000 characters (suitable for discord messages) that contain every four-letter word in `etoaisnhrldum`, so you can get blue uncursed.
+
+<https://github.com/mehbark/homelab/blob/856f6f327bb1bc7a1f5dd37370dd041d38ebb840/bots/puyo.ts#L799-L808>

src/main.rs

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+use std::collections::HashSet;
+
+const LETTERS: [u8; 13] = *b"etoaisnhrldum";
+
+fn overlap(first: &[u8], second: &[u8]) -> usize {
+    if &first[first.len().saturating_sub(second.len())..] == second {
+        second.len()
+    } else {
+        overlap(first, &second[..second.len() - 1])
+    }
+}
+
+fn main() {
+    let mut remaining = HashSet::new();
+
+    for a in LETTERS {
+        for b in LETTERS {
+            for c in LETTERS {
+                for d in LETTERS {
+                    remaining.insert([a, b, c, d]);
+                }
+            }
+        }
+    }
+
+    eprintln!("words: {}", remaining.len());
+
+    let mut last = *b"aaaa";
+    remaining.remove(&last);
+
+    let mut output = String::from_utf8_lossy(&last).to_string();
+
+    while let Some(word) = remaining
+        .iter()
+        .max_by_key(|word| overlap(&last, &word[..]))
+    {
+        let word = *word;
+        remaining.remove(&word);
+        let added = &word[overlap(&last, &word[..])..];
+        last = word;
+        output.push_str(&String::from_utf8_lossy(added));
+
+        if output.len() > 1996 {
+            println!("{output}");
+            output.clear();
+            output.push_str(&String::from_utf8_lossy(&word));
+        }
+    }
+
+    println!("{output}");
+}