From 6ed9b183046627a3530448a2be473433e20c2744 Mon Sep 17 00:00:00 2001
From: rl544 <111494264+rl544@users.noreply.github.com>
Date: Fri, 30 Dec 2022 19:00:33 +0900
Subject: [PATCH] =?UTF-8?q?uploaded=20at=202022.=2012.=2030.=20=EC=98=A4?=
 =?UTF-8?q?=ED=9B=84=207:00:32?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 programmers/테이블 해시 함수/solution.java | 15 +++++++++++++++
 1 file changed, 15 insertions(+)
 create mode 100644 programmers/테이블 해시 함수/solution.java

diff --git a/programmers/테이블 해시 함수/solution.java b/programmers/테이블 해시 함수/solution.java
new file mode 100644
index 0000000..9b3ea03
--- /dev/null
+++ b/programmers/테이블 해시 함수/solution.java	
@@ -0,0 +1,15 @@
+// [문제 링크]: https://school.programmers.co.kr/learn/courses/30/lessons/147354
+
+import java.util.*;
+import java.util.stream.*;
+class Solution {
+    private int S_i(int[] a, int i) {return IntStream.of(a).mapToObj(b -> b%i).mapToInt(b->b).sum();}
+    public int solution(int[][] data, int col, int row_begin, int row_end) {
+        int answer = 0;
+        List<int[]> al = Arrays.asList(data);
+        al.sort((o1,o2) -> o2[0] - o1[0]);
+        al.sort((o1,o2) -> o1[col-1] - o2[col-1]);
+        for(int c = row_begin; c <= row_end; c++) answer ^= S_i(al.get(c-1),c);
+        return answer;
+    }
+}
\ No newline at end of file