20241105 finished.

src/problem/mod.rs

@@ -296,3 +296,5 @@ mod p3226_number_of_bit_changes_to_make_two_integers_equal;
 mod p638_shopping_offers;
 
 mod p633_sum_of_square_numbers;
+
+mod p3222_find_the_winning_player_in_coin_game;

src/problem/p3222_find_the_winning_player_in_coin_game.rs

@@ -0,0 +1,31 @@
+/**
+ * [3222] Find the Winning Player in Coin Game
+ */
+pub struct Solution {}
+
+// submission codes start here
+
+impl Solution {
+    pub fn losing_player(x: i32, y: i32) -> String {
+        let count = x.min(y / 4);
+
+        if count % 2 == 1 {
+            "Alice".to_owned()
+        } else {
+            "Bob".to_owned()
+        }
+    }
+}
+
+// submission codes end
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn test_3222() {
+        assert_eq!("Alice".to_owned(), Solution::losing_player(2, 7));
+        assert_eq!("Bob".to_owned(), Solution::losing_player(4, 11));
+    }
+}