add a README

Author: oadam

README.md

@@ -0,0 +1,19 @@
+## Build
+cargo build --release
+
+# Ensure enough swap
+    sudo fallocate -l 64G swapfile
+    sudo chmod 600 swapfile
+    sudo mkswap swapfile
+    sudo swapon swapfile
+    swapon --show
+
+# Run
+    target/release/wordle_solver
+
+# Disable swap
+    sudo swapoff swapfile
+    sudo rm swapfile
+
+# Results
+    Results are in `result.txt`

src/main.rs

@@ -72,6 +72,9 @@ fn main() {
         game.refine_score();
         println!("{}", game.print_current_best_score(&words_str));
     }
-    println!("{}", game.print_tree(&words_str));
+    let filename = "result.txt";
+    let mut file = File::create(filename).unwrap();
+    file.write_all(game.print_tree(&words_str).as_bytes()).unwrap();
+    println!("{} written !", filename);
     println!("average score : {}", game.get_avg_score());
 }