June 2018 Update

Task/Self-describing-numbers/Rust/self-describing-numbers.rust

@@ -0,0 +1,22 @@
+fn is_self_desc(xx: u64) -> bool
+{
+    let s: String = xx.to_string();
+    let mut count_vec = vec![0; 10];
+    for c in s.chars() {
+        count_vec[c.to_digit(10).unwrap() as usize] += 1;
+    }
+    for (i, c) in s.chars().enumerate() {
+        if count_vec[i] != c.to_digit(10).unwrap() as usize {
+            return false;
+        }
+    }
+    return true;
+}
+
+fn main() {
+    for i in 1..100000000 {
+        if is_self_desc(i) {
+            println!("{}", i)
+        }
+    }
+}