add framework for 93 (WIP)

src/euler93/Cargo.toml

@@ -6,3 +6,4 @@ edition = "2021"
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
+itertools = "*"

src/euler93/src/main.rs

@@ -1,3 +1,5 @@
+use itertools::Itertools;
+
 type Num = f64;
 
 fn main() {
@@ -18,21 +20,50 @@ fn main() {
     }
 }
 
+fn recurse(array: &[Num]) -> Vec<Num> {
+    if array.len() == 2 {
+        let [a, b] = array else { panic!() };
+
+        let mut v = vec![];
+
+        for ops in Operations::iter() {
+            v.push(ops(*a, *b));
+        }
+        v
+    } else {
+        let a = array[0];
+        let b = array[1];
+
+        let mut v = vec![];
+
+        for ops in Operations::iter() {
+            v.push(ops(a, b));
+        }
+    }
+}
+
 struct Digits(Num, Num, Num, Num);
 
 impl Digits {
     fn all_possible_integers(&self) -> Vec<u32> {
-        let a = self.0;
+        let array = [self.0, self.1, self.2, self.3];
-        let b = self.1;
-        let c = self.2;
-        let d = self.3;
 
-        let outcomes: Vec<_> = Operations::new()
+        array.into_iter().permutations(4).next().map(|a| {
-            .map(|f| f(a, b) as u32)
+            for ops in Operations::iter() {
-            .filter(|i| *i > 0)
+                let x = ops(a[0], a[1]);
-            .collect();
+            }
+        });
 
-        dbg!(outcomes)
+        // dbg!(v);
+
+        todo!()
+
+        // let outcomes: Vec<_> = Operations::new()
+        //     .map(|f| f(a, b) as u32)
+        //     .filter(|i| *i > 0)
+        //     .collect();
+
+        // dbg!(outcomes)
     }
 }
 
@@ -58,7 +89,7 @@ impl Iterator for Operations {
 }
 
 impl Operations {
-    fn new() -> Self {
+    fn iter() -> Self {
         Self { last: 0 }
     }
 }