格式化，y不动点算子

rust/src/implements/mod.rs

@@ -12,8 +12,8 @@ mod q0006;
 mod q0007;
 mod q0008;
 mod q0009;
-mod q0012;
 mod q0011;
+mod q0012;
 mod q0013;
 mod q0014;
 mod q0020;
@@ -51,9 +51,9 @@ mod q0101;
 mod q0102;
 mod q0104;
 mod q0108;
-mod q0112;
 mod q0110;
 mod q0111;
+mod q0112;
 mod q0118;
 mod q0119;
 mod q0121;

rust/src/main.rs

@@ -1,3 +1,4 @@
+#![allow(dead_code)]
 //! 目前此文件用于临时测试、将来将提供所有题目的入口
 const MASK_LOOKUP: [[u128; 5]; 5] = [
     [0x00000000ffff0000000000000000ffff_u128, 0x000000000000000000000000ffff0000_u128, 0x000000000000ffff0000000000000000_u128, 0x00000000000000000000ffff00000000_u128, 0x0000000000000000ffff000000000000_u128],
@@ -24,20 +25,63 @@ pub fn re_three(mut a: u128) -> (u32, u32, u32) {
     ((a >> 64) as u32, (a >> 32) as u32, a as u32)
 }
 
-fn main() {
+pub fn test_speed() {
     use std::time::Instant;
     let t1 = Instant::now();
     let t = 10000000;
-    for _ in 0..t {
-        three(0, 0xffffffffu32, 0);
+    for i in 0..t {
+        three(i, 0xffffffffu32, i);
     }
     println!("{}", t1.elapsed().as_millis());
-    /*let contents = std::fs::read_to_string("F:\\MyProject\\my_leetcode\\rust\\src\\implements\\mod.rs").expect("Something went wrong reading the file");
+}
+
+struct Func<'a, A, F>(&'a dyn Fn(Func<'a, A, F>, A) -> F);
+
+impl<'a, A, F> Clone for Func<'a, A, F> {
+    fn clone(&self) -> Self {
+        Self(self.0)
+    }
+}
+
+impl<'a, A, F> Copy for Func<'a, A, F> {}
+
+impl<'a, A, F> Func<'a, A, F> {
+    fn call(&self, f: Func<'a, A, F>, x: A) -> F {
+        (self.0)(f, x)
+    }
+}
+
+fn y<A, R>(g: impl Fn(&dyn Fn(A) -> R, A) -> R) -> impl Fn(A) -> R {
+    move |x: A| {
+        (|f: Func<A, R>, x| f.call(f, x))(
+            Func(&|f: Func<A, R>, x: A| g(&|x: A| f.call(f, x), x)),
+            x,
+        )
+    }
+}
+
+fn test_y() {
+    let fact = y(|f: &dyn Fn(usize) -> usize, x: usize| match x {
+        0usize => 1usize,
+        1usize => 1usize,
+        _ => f(x - 2) + f(x - 1),
+    });
+    println!("{}", fact(10usize));
+}
+
+fn reformat() {
+    let contents = std::fs::read_to_string("F:\\MyProject\\my_leetcode\\rust\\src\\implements\\mod.rs").expect("Something went wrong reading the file");
     let mut arr = contents.split("\r\n").collect::<Vec<&str>>();
     arr.sort_unstable();
 
     for item in arr {
         println!("{}", item);
-    }*/
+    }
+}
+
+fn main() {
+    test_speed();
+    test_y();
+    reformat();
     //println!("{:0128b}", a);
 }

rust/tests/integration_test.rs

@@ -0,0 +1 @@
+