From 7d92a145e089e59f0f830843ba91cd7223bc6c98 Mon Sep 17 00:00:00 2001 From: deadmarshal Date: Wed, 15 Nov 2023 21:53:10 +0330 Subject: TWC243 extra solutions --- challenge-243/deadmarshal/java/Ch1.java | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) create mode 100644 challenge-243/deadmarshal/java/Ch1.java (limited to 'challenge-243/deadmarshal/java/Ch1.java') diff --git a/challenge-243/deadmarshal/java/Ch1.java b/challenge-243/deadmarshal/java/Ch1.java new file mode 100644 index 0000000000..ae2eb24e29 --- /dev/null +++ b/challenge-243/deadmarshal/java/Ch1.java @@ -0,0 +1,20 @@ +import java.util.ArrayList; +import java.util.List; + +public class Ch1 { + public static void main(String[] args) { + ArrayList list1 = new ArrayList<>(List.of(1,3,2,3,1)); + ArrayList list2 = new ArrayList<>(List.of(2,4,3,5,1)); + System.out.println(reverse_pairs(list1)); + System.out.println(reverse_pairs(list2)); + } + + private static int reverse_pairs(List list) { + int count = 0; + for(int i = 0; i < list.size()-1; ++i) + for(int j = i+1; j < list.size(); ++j) + if(list.get(i) > 2 * list.get(j)) count++; + return count; + } +} + -- cgit