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Commit 3dfe235

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Update readme.md
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‎src/main/java/g0101_0200/s0178_rank_scores/readme.md‎

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@@ -6,7 +6,14 @@ SQL Schema
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Table: `Scores`
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+-------------+---------+ | Column Name | Type | +-------------+---------+ | id | int | | score | decimal | +-------------+---------+ id is the primary key for this table. Each row of this table contains the score of a game. Score is a floating point value with two decimal places.
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+-------------+---------+
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| Column Name | Type |
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+-------------+---------+
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| id | int |
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| score | decimal |
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+-------------+---------+
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id is the primary key for this table.
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Each row of this table contains the score of a game. Score is a floating point value with two decimal places.
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Write an SQL query to rank the scores. The ranking should be calculated according to the following rules:
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**Example 1:**
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**Input:** Scores table: +----+-------+ | id | score | +----+-------+ | 1 | 3.50 | | 2 | 3.65 | | 3 | 4.00 | | 4 | 3.85 | | 5 | 4.00 | | 6 | 3.65 | +----+-------+
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**Output:** +-------+------+ | score | rank | +-------+------+ | 4.00 | 1 | | 4.00 | 1 | | 3.85 | 2 | | 3.65 | 3 | | 3.65 | 3 | | 3.50 | 4 | +-------+------+
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**Input:**
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Scores table:
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+----+-------+
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| id | score |
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+----+-------+
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| 1 | 3.50 |
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| 2 | 3.65 |
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| 3 | 4.00 |
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| 4 | 3.85 |
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| 5 | 4.00 |
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| 6 | 3.65 |
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+----+-------+
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**Output:**
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+-------+------+
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| score | rank |
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+-------+------+
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| 4.00 | 1 |
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| 4.00 | 1 |
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| 3.85 | 2 |
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| 3.65 | 3 |
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| 3.65 | 3 |
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| 3.50 | 4 |
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+-------+------+

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