From b7e06e086be6d0fea2dde4c766ad8cedb4fe94fe Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Anton=20Luka=20=C5=A0ijanec?= <anton@sijanec.eu>
Date: Sat, 18 Nov 2023 23:18:47 +0100
Subject: DN04

---
 "\305\241ola/p1/dn/DN04_63230317.java" | 31 +++++++++++++++++++++++++++++++
 1 file changed, 31 insertions(+)
 create mode 100644 "\305\241ola/p1/dn/DN04_63230317.java"

diff --git "a/\305\241ola/p1/dn/DN04_63230317.java" "b/\305\241ola/p1/dn/DN04_63230317.java"
new file mode 100644
index 0000000..55c8b75
--- /dev/null
+++ "b/\305\241ola/p1/dn/DN04_63230317.java"
@@ -0,0 +1,31 @@
+import java.util.*;
+public class DN04_63230317 {
+	public static void main (String[] args) {
+		Scanner sc = new Scanner(System.in);
+		int n = sc.nextInt();
+		int k = sc.nextInt();
+		int[] oznake_pojavitve = new int[1000];
+		int[] seznam_oznak = new int[n];
+		int max_oznaka = 0; // samo za DEBUG
+		for (int i = 0; i < n; i++) {
+			int oznaka = sc.nextInt();
+			oznake_pojavitve[oznaka-1]++;
+			seznam_oznak[i] = oznaka;
+			if (oznaka > max_oznaka) // samo za DEBUG
+				max_oznaka = oznaka; // samo za DEBUG
+		}
+		if (System.getenv("DN04_DEBUG") != null) {
+			for (int i = 0; i < max_oznaka; i++)
+				System.err.print(i+1 + "\t");
+			System.err.println("");
+			for (int i = 0; i < max_oznaka; i++)
+				System.err.print(oznake_pojavitve[i] + "\t");
+			System.err.println("");
+		}
+		long parov = 0;
+		for (int i = 0; i < n; i++)
+			if (k-seznam_oznak[i]-1 >= 0 && k-seznam_oznak[i]-1 < 1000)
+				parov += oznake_pojavitve[k-seznam_oznak[i]-1];
+		System.out.println(parov);
+	}
+}
-- 
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