couple more rust solutions

2 files changed, 38 insertions, 0 deletions

diff --git a/REVC.rs b/REVC.rs
new file mode 100644
index 0000000..3c9e9e7
--- /dev/null
+++ b/REVC.rs
@@ -0,0 +1,26 @@
+use io::{stdin,println,ReaderUtil};
+
+/* really feels like there should be a more efficient way to do this */
+fn reverse(s: &str) -> ~str {
+    let mut r = ~"";
+    str::reserve(&mut r, str::len(s));
+    for str::each_char(s) |ch| {
+        str::unshift_char(&mut r, ch)
+    }
+    r
+}
+
+fn complement(ch: char) -> char {
+    match ch {
+        'A' => 'T',
+        'C' => 'G',
+        'G' => 'C',
+        'T' => 'A',
+        _   => fail ~"Unknown character found",
+    }
+}
+
+fn main() {
+    let dna = stdin().read_line();
+    println(str::map(reverse(dna), complement));
+}
diff --git a/RNA.rs b/RNA.rs
new file mode 100644
index 0000000..30091fe
--- /dev/null
+++ b/RNA.rs
@@ -0,0 +1,12 @@
+use io::{stdin,stdout,ReaderUtil,WriterUtil};
+
+fn main() {
+    let stdout = stdout();
+    for stdin().each_char() |ch| {
+        match ch {
+            'T' =>  { stdout.write_char('U')        }
+            '\n' => { stdout.write_char(ch); return }
+            _   =>  { stdout.write_char(ch)         }
+        }
+    }
+}