Data update

Task/Mutual-recursion/Rust/mutual-recursion.rs

@@ -0,0 +1,25 @@
+fn f(n: u32) -> u32 {
+    match n {
+        0 => 1,
+        _ => n - m(f(n - 1))
+    }
+}
+
+fn m(n: u32) -> u32 {
+    match n {
+        0 => 0,
+        _ => n - f(m(n - 1))
+    }
+}
+
+fn main() {
+    for i in (0..20).map(f) {
+        print!("{} ", i);
+    }
+    println!("");
+
+    for i in (0..20).map(m) {
+        print!("{} ", i);
+    }
+    println!("")
+}