blob: 0fcdaff71ad67ccbc6b626d7736f55283f698d06 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
|
-- Perl Weekly Challenge 199
-- Task 2
CREATE SCHEMA IF NOT EXISTS pwc199;
CREATE OR REPLACE FUNCTION
pwc199.task2_plpgsql( x int, y int, z int, l int[] )
RETURNS int
AS $CODE$
DECLARE
i int;
j int;
k int;
c int := 0;
BEGIN
FOR i IN 1 .. array_length( l, 1 ) LOOP
FOR j IN ( i + 1 ) .. array_length( l, 1 ) LOOP
FOR k IN ( j + 1 ) .. array_length( l, 1 ) LOOP
IF abs( l[i] - l[j] ) <= x AND abs( l[j] - l[k] ) <= y AND abs( l[i] - l[k] ) <= z THEN
c := c + 1;
END IF;
END LOOP;
END LOOP;
END LOOP;
RETURN c;
END
$CODE$
LANGUAGE plpgsql;
|
