1 files changed, 37 insertions, 0 deletions
diff --git a/challenge-288/roger-bell-west/rust/ch-1.rs b/challenge-288/roger-bell-west/rust/ch-1.rs
new file mode 100755
index 0000000000..066cf5d723
--- /dev/null
+++ b/challenge-288/roger-bell-west/rust/ch-1.rs
@@ -0,0 +1,37 @@
+#! /bin/sh
+//usr/bin/env rustc --test $0 -o ${0}x && ./${0}x --nocapture; rm -f ${0}x ; exit
+
+#[test]
+fn test_ex1() {
+    assert_eq!(closestpalindrome("123"), "121");
+}
+
+#[test]
+fn test_ex2() {
+    assert_eq!(closestpalindrome("2"), "1");
+}
+
+#[test]
+fn test_ex3() {
+    assert_eq!(closestpalindrome("1400"), "1441");
+}
+
+#[test]
+fn test_ex4() {
+    assert_eq!(closestpalindrome("1000"), "999");
+}
+
+fn closestpalindrome(a: &str) -> String {
+    let n = a.parse::<i32>().unwrap();
+    let mut delta = -1;
+    loop {
+        let q = (n + delta).to_string();
+        if q == q.chars().rev().collect::<String>() {
+            return q;
+        }
+        delta = -delta;
+        if delta < 0 {
+            delta -= 1;
+        }
+    }
+}