AC 042, started from the beginning of atcoder with rust to practice my rust

atcoder/beginner_contests/abc042/src/bin/a.rs

@@ -0,0 +1,11 @@
+use proconio::input;
+
+fn main() {
+    input!{
+        mut abc: [u8; 3],
+    };
+    abc.sort();
+    let ans = abc == vec![5, 5, 7];
+
+    println!("{}", if ans {"YES"} else {"NO"});
+}