From 5c9312e14f0ed47e90879f387e6598562c2a9f2c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=EA=B0=95=EC=8B=A0=EC=A7=80?=
 <101992179+ksinji@users.noreply.github.com>
Date: Thu, 4 Dec 2025 23:49:32 +0900
Subject: [PATCH] =?UTF-8?q?[20251204]=20BOJ=20/=20G4=20/=20=EC=88=98?=
 =?UTF-8?q?=EB=93=A4=EC=9D=98=20=ED=95=A9=204=20/=20=EA=B0=95=EC=8B=A0?=
 =?UTF-8?q?=EC=A7=80?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 ...353\223\244\354\235\230 \355\225\251 4.md" | 36 +++++++++++++++++++
 1 file changed, 36 insertions(+)
 create mode 100644 "ksinji/202512/04 BOJ \354\210\230\353\223\244\354\235\230 \355\225\251 4.md"

diff --git "a/ksinji/202512/04 BOJ \354\210\230\353\223\244\354\235\230 \355\225\251 4.md" "b/ksinji/202512/04 BOJ \354\210\230\353\223\244\354\235\230 \355\225\251 4.md"
new file mode 100644
index 00000000..29a32ac8
--- /dev/null
+++ "b/ksinji/202512/04 BOJ \354\210\230\353\223\244\354\235\230 \355\225\251 4.md"	
@@ -0,0 +1,36 @@
+```java
+import java.io.*;
+import java.util.*;
+
+public class Main {
+    public static void main(String[] args) throws Exception {
+        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
+        StringTokenizer st = new StringTokenizer(br.readLine());
+
+        int n = Integer.parseInt(st.nextToken());
+        int k = Integer.parseInt(st.nextToken());
+
+        st = new StringTokenizer(br.readLine());
+
+        long sum = 0L;
+        long answer = 0L;
+
+        Map<Long, Long> count = new HashMap<>();
+        count.put(0L, 1L);
+
+        for (int i = 0; i < n; i++) {
+            int x = Integer.parseInt(st.nextToken());
+            sum += x;
+
+            long target = sum - k;
+            if (count.containsKey(target)) {
+                answer += count.get(target);
+            }
+
+            count.put(sum, count.getOrDefault(sum, 0L) + 1);
+        }
+
+        System.out.println(answer);
+    }
+}
+```