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URI Problem 2740 Solution League - URI Online Judge Solution

URI Online Judge Solution 2740 League Using PostgreSQL Query Language.
The International Underground Excavation League is a success between alternative sports, however the staff responsible for organizing the events doesn’t understand computers at all, they only know how to dig and the sport rule set. As such, you were hired to solve the League’s problem. 

Select the three first placed with the initial phrase "Podium: " and select the last two, which will be demoted to a lower league with the initial phrase “Demoted:".

Schema

league
ColumnType
position (PK)integer
teamvarchar

Tables

league
positionteam
1The Quack Bats
2The Responsible Hornets
3The Bawdy Dolphins
4The Abstracted Sharks
5The Nervous Zebras
6The Oafish Owls
7The Unequaled Bison
8The Keen Kangaroos
9The Left Nightingales
10The Terrific Elks
11The Lumpy Frogs
12The Swift Buffalo
13The Big Chargers
14The Rough Robins
15The Silver Crocs

Output Sample

name
Podium: The Quack Bats
Podium: The Responsible Hornets
Podium: The Bawdy Dolphins
Demoted: The Rough Robins
Demoted: The Silver Crocs

URI 2740 Solution in PostgreSQL:


SELECT Concat('Podium: ', team) as name
FROM League
WHERE position IN (SELECT MIN(position) FROM League)
UNION ALL
SELECT Concat('Podium: ', team) 
FROM League
WHERE position IN (SELECT MIN(position)+1 FROM League)
UNION ALL
SELECT Concat('Podium: ', team) 
FROM League
WHERE position IN (SELECT MIN(position)+2 FROM League)
UNION ALL
SELECT Concat('Demoted: ', team) 
FROM League
WHERE position IN (SELECT MAX(position)-1 FROM League)
UNION ALL
SELECT Concat('Demoted: ', team) 
FROM League
WHERE position IN (SELECT MAX(position) FROM League)
Labels:

Comments

  1. MAHIBIAApril 2, 2022 at 3:36 AM

    (select concat('Podium: ',team) as name from league
    where position in (select position from league order by position limit 3))
    union all
    (select concat('Demoted: ',team) as name from league
    where position in (select position from league order by position desc limit 2))

    ReplyDelete

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