finish 84

src/euler84/src/lib.rs

@@ -1,4 +1,5 @@
 use std::collections::{HashMap, VecDeque};
+use std::fmt::Display;
 use std::iter::Cycle;
 
 use rand::prelude::*;
@@ -92,6 +93,17 @@ enum Chance {
     DoNothing6,
 }
 
+impl Display for Squares {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        let value = *self as isize;
+        if value < 10 {
+            f.write_fmt(format_args!("0{value}"))
+        } else {
+            f.write_fmt(format_args!("{value}"))
+        }
+    }
+}
+
 #[allow(dead_code)]
 #[derive(Debug)]
 pub enum Dice {
@@ -176,8 +188,7 @@ impl Monopoly {
     }
 
     fn go_to_jail(&mut self) -> Squares {
-        let _ = (&mut self.board).skip_while(|c| *c != Squares::Jail);
-        Squares::Jail
+        self.go_to_square(Squares::Jail)
     }
 
     fn handle_chance(&mut self, square: Squares) -> Squares {
@@ -216,8 +227,7 @@ impl Monopoly {
     }
 
     fn advance_to_go(&mut self) -> Squares {
-        let _ = (&mut self.board).skip_while(|c| *c != Squares::Go);
-        Squares::Go
+        self.go_to_square(Squares::Go)
     }
 
     fn draw_from_chance_pile_and_put_at_bottom(&mut self) -> &Chance {
@@ -288,9 +298,11 @@ impl Statistics {
             .map(|(k, v)| (k, *v as f64 / self.iterations as f64 * 100.))
             .collect();
         result.sort_unstable_by(|(_, v1), (_, v2)| v2.partial_cmp(v1).unwrap());
-        for (s, v) in result {
+        for (s, v) in &result {
             println!("{s:?}: {v:.2}");
         }
+        let output: String = result.iter().take(3).map(|(s, _)| s.to_string()).collect();
+        println!("\n{output}");
     }
 }
 
@@ -344,6 +356,7 @@ mod test {
     fn custom() {
         let mut monopoly = Monopoly::new(Dice::SixSided);
         assert_eq!(monopoly.go_to_square(Squares::E3), Squares::E3);
+        assert_eq!(monopoly.advance_by(1), Squares::R3);
     }
 
     #[test]

src/euler84/src/main.rs

@@ -1,8 +1,8 @@
 use euler84::{Dice, Monopoly, Statistics};
 
 fn main() {
-    let monopoly = Monopoly::new(Dice::SixSided);
-    let mut statistics = Statistics::new(monopoly, 50_000_000);
+    let monopoly = Monopoly::new(Dice::FourSided);
+    let mut statistics = Statistics::new(monopoly, 500_000_000);
     statistics.run();
     statistics.show();
 }