add guessing game file

Rust/guessing_game.rs

@@ -0,0 +1,37 @@
+use std::io;
+use std::cmp::Ordering;
+use rand::Rng;
+
+fn main() {
+    println!("--- Guess The Number! ---");
+
+    let secret_number = rand::thread_rng().gen_range(1..=100);
+
+    println!("The secret secret is {secret_number}");
+
+    loop {
+        println!("Please input your guess.");
+
+        let mut guess = String::new();
+
+        io::stdin()
+            .read_line(&mut guess)
+            .expect("Failed to read line");
+
+        let guess: u32 = match guess.trim().parse() {
+	    Ok(num) => num,
+	    Err(_) => continue,
+	};
+
+        println!("You guessed: {}", guess);
+
+        match guess.cmp(&secret_number) {
+            Ordering::Less => println!("Too small"),
+            Ordering::Greater => println!("Too Big"),
+            Ordering::Equal => {
+                println!("You win, Congratulations :)");
+                break;
+	    }
+        }
+    }
+}