# 1194. Tournament Winners

<https://leetcode.com/problems/tournament-winners>

## Description

Table: `Players`

```
+-------------+-------+
| Column Name | Type  |
+-------------+-------+
| player\_id   | int   |
| group\_id    | int   |
+-------------+-------+
player\_id is the primary key of this table.
Each row of this table indicates the group of each player.
```

Table: `Matches`

```
+---------------+---------+
| Column Name   | Type    |
+---------------+---------+
| match\_id      | int     |
| first\_player  | int     |
| second\_player | int     | 
| first\_score   | int     |
| second\_score  | int     |
+---------------+---------+
match\_id is the primary key of this table.
Each row is a record of a match, first\_player and second\_player contain the player\_id of each match.
first\_score and second\_score contain the number of points of the first\_player and second\_player respectively.
You may assume that, in each match, players belongs to the same group.
```

The winner in each group is the player who scored the maximum total points within the group. In the case of a tie, the **lowest** player\_id wins.

Write an SQL query to find the winner in each group.

The query result format is in the following example:

```
Players table:
+-----------+------------+
| player\_id | group\_id   |
+-----------+------------+
| 15        | 1          |
| 25        | 1          |
| 30        | 1          |
| 45        | 1          |
| 10        | 2          |
| 35        | 2          |
| 50        | 2          |
| 20        | 3          |
| 40        | 3          |
+-----------+------------+
Matches table:
+------------+--------------+---------------+-------------+--------------+
| match\_id   | first\_player | second\_player | first\_score | second\_score |
+------------+--------------+---------------+-------------+--------------+
| 1          | 15           | 45            | 3           | 0            |
| 2          | 30           | 25            | 1           | 2            |
| 3          | 30           | 15            | 2           | 0            |
| 4          | 40           | 20            | 5           | 2            |
| 5          | 35           | 50            | 1           | 1            |
+------------+--------------+---------------+-------------+--------------+
Result table:
+-----------+------------+
| group\_id  | player\_id  |
+-----------+------------+ 
| 1         | 15         |
| 2         | 35         |
| 3         | 40         |
+-----------+------------+
```

## ac

```java
```