AC043 in rust, finished all. (D doesn't get tested correctly locally)

atcoder/beginner_contests/abc043/src/bin/d.rs

@@ -0,0 +1,44 @@
+use proconio::input;
+
+fn main() {
+    input!{
+        s: String,
+    };
+
+    let mut cs = s.chars();
+    let l = s.len();
+
+    if l == 2 {
+        let a = cs.next().unwrap();
+        let b = cs.next().unwrap();
+
+        if a == b {
+            println!("1 2");
+        } else{    
+            println!("-1 -1");
+        }
+
+        return
+    }
+
+    let mut past_chars = [' '; 3];
+    past_chars[1] = cs.next().unwrap();
+    past_chars[2] = cs.next().unwrap();
+
+    for i in 2..l {
+        past_chars[0] = past_chars[1];
+        past_chars[1] = past_chars[2];
+        past_chars[2] = cs.next().unwrap();
+
+        let mut sorting = [' '; 3];
+        sorting.copy_from_slice(&past_chars);
+        sorting.sort();
+
+        if sorting[0] == sorting[1] || sorting[1] == sorting[2] {
+            println!("{} {}", {i-1}, {i+1});
+            return;
+        }
+    }
+
+    println!("-1 -1");
+}