Merge pull request #12340 from fer2o3/kachow

feat(330): completed both challenges

2 files changed, 54 insertions, 0 deletions

diff --git a/challenge-330/benjamin-andre/rust/ch-1.rs b/challenge-330/benjamin-andre/rust/ch-1.rs
new file mode 100755
index 0000000000..cb3ebb5d96
--- /dev/null
+++ b/challenge-330/benjamin-andre/rust/ch-1.rs
@@ -0,0 +1,26 @@
+#!/bin/sh
+//usr/bin/env rustc --test $0 -o kachow && ./kachow --nocapture; rm -f kachow ; exit
+
+fn clear_digits(s: &str) -> String {
+    let mut chars: Vec<char> = s.chars().collect();
+    let mut i = 0;
+    while i < chars.len() {
+        if chars[i].is_ascii_digit() {
+            chars.remove(i);
+            if i > 0 {
+                chars.remove(i - 1);
+                i -= 1;
+            }
+        } else {
+            i += 1;
+        }
+    }
+    chars.into_iter().collect()
+}
+
+#[test]
+fn example() {
+    assert_eq!(clear_digits("cab12"), "c");
+    assert_eq!(clear_digits("xy99"), "");
+    assert_eq!(clear_digits("pa1erl"), "perl");
+}
diff --git a/challenge-330/benjamin-andre/rust/ch-2.rs b/challenge-330/benjamin-andre/rust/ch-2.rs
new file mode 100755
index 0000000000..b11fef1d9b
--- /dev/null
+++ b/challenge-330/benjamin-andre/rust/ch-2.rs
@@ -0,0 +1,28 @@
+#!/bin/sh
+//usr/bin/env rustc --test $0 -o kachow && ./kachow --nocapture; rm -f kachow ; exit
+
+fn title_capital(s: &str) -> String {
+    s.split_whitespace()
+        .map(|word| {
+            if word.len() <= 2 {
+                word.to_lowercase()
+            } else {
+                let lower = word.to_lowercase();
+                let mut chars = lower.chars();
+                chars.next().unwrap().to_uppercase().collect::<String>()
+                    + &chars.collect::<String>()
+            }
+        })
+        .collect::<Vec<_>>()
+        .join(" ")
+}
+
+#[test]
+fn example() {
+    assert_eq!(title_capital("PERL IS gREAT"), "Perl is Great");
+    assert_eq!(
+        title_capital("THE weekly challenge"),
+        "The Weekly Challenge"
+    );
+    assert_eq!(title_capital("YoU ARE A stAR"), "You Are a Star");
+}