feat: add sql solution to lc problem: No.1194

No.1194.Tournament Winners

solution/1100-1199/1194.Tournament Winners/README.md

@@ -95,7 +95,37 @@ Players 表</code>:
 ### **SQL**
 
 ```sql
-
+# Write your MySQL query statement below
+WITH
+    s AS (
+        SELECT first_player AS player_id, first_score AS score, group_id
+        FROM
+            Matches AS m
+            JOIN Players AS p ON m.first_player = p.player_id
+        UNION ALL
+        SELECT second_player AS player_id, second_score AS score, group_id
+        FROM
+            Matches AS m
+            JOIN Players AS p ON m.second_player = p.player_id
+    ),
+    t AS (
+        SELECT group_id, player_id, sum(score) AS scores
+        FROM s
+        GROUP BY player_id
+    ),
+    p AS (
+        SELECT
+            group_id,
+            player_id,
+            rank() OVER (
+                PARTITION BY group_id
+                ORDER BY scores DESC, player_id
+            ) AS rk
+        FROM t
+    )
+SELECT group_id, player_id
+FROM p
+WHERE rk = 1;
 ```
 
 <!-- tabs:end -->

solution/1100-1199/1194.Tournament Winners/README_EN.md

@@ -91,7 +91,37 @@ Matches table:
 ### **SQL**
 
 ```sql
-
+# Write your MySQL query statement below
+WITH
+    s AS (
+        SELECT first_player AS player_id, first_score AS score, group_id
+        FROM
+            Matches AS m
+            JOIN Players AS p ON m.first_player = p.player_id
+        UNION ALL
+        SELECT second_player AS player_id, second_score AS score, group_id
+        FROM
+            Matches AS m
+            JOIN Players AS p ON m.second_player = p.player_id
+    ),
+    t AS (
+        SELECT group_id, player_id, sum(score) AS scores
+        FROM s
+        GROUP BY player_id
+    ),
+    p AS (
+        SELECT
+            group_id,
+            player_id,
+            rank() OVER (
+                PARTITION BY group_id
+                ORDER BY scores DESC, player_id
+            ) AS rk
+        FROM t
+    )
+SELECT group_id, player_id
+FROM p
+WHERE rk = 1;
 ```
 
 <!-- tabs:end -->

solution/1100-1199/1194.Tournament Winners/Solution.sql

@@ -0,0 +1,31 @@
+# Write your MySQL query statement below
+WITH
+    s AS (
+        SELECT first_player AS player_id, first_score AS score, group_id
+        FROM
+            Matches AS m
+            JOIN Players AS p ON m.first_player = p.player_id
+        UNION ALL
+        SELECT second_player AS player_id, second_score AS score, group_id
+        FROM
+            Matches AS m
+            JOIN Players AS p ON m.second_player = p.player_id
+    ),
+    t AS (
+        SELECT group_id, player_id, sum(score) AS scores
+        FROM s
+        GROUP BY player_id
+    ),
+    p AS (
+        SELECT
+            group_id,
+            player_id,
+            rank() OVER (
+                PARTITION BY group_id
+                ORDER BY scores DESC, player_id
+            ) AS rk
+        FROM t
+    )
+SELECT group_id, player_id
+FROM p
+WHERE rk = 1;