From 38c1c60aedf5e0a4329af4a7bc782e2130eb90b0 Mon Sep 17 00:00:00 2001
From: Ukj0ng <90972240+Ukj0ng@users.noreply.github.com>
Date: Wed, 21 Jan 2026 12:50:23 +0900
Subject: [PATCH] =?UTF-8?q?[20260121]=20BOJ=20/=20G4=20/=20=EC=88=98?=
 =?UTF-8?q?=EB=93=A4=EC=9D=98=20=ED=95=A9=204=20/=20=ED=95=9C=EC=A2=85?=
 =?UTF-8?q?=EC=9A=B1?=
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---
 ...353\223\244\354\235\230 \355\225\251 4.md" | 50 +++++++++++++++++++
 1 file changed, 50 insertions(+)
 create mode 100644 "Ukj0ng/202601/21 BOJ G4 \354\210\230\353\223\244\354\235\230 \355\225\251 4.md"

diff --git "a/Ukj0ng/202601/21 BOJ G4 \354\210\230\353\223\244\354\235\230 \355\225\251 4.md" "b/Ukj0ng/202601/21 BOJ G4 \354\210\230\353\223\244\354\235\230 \355\225\251 4.md"
new file mode 100644
index 00000000..2acaab92
--- /dev/null
+++ "b/Ukj0ng/202601/21 BOJ G4 \354\210\230\353\223\244\354\235\230 \355\225\251 4.md"	
@@ -0,0 +1,50 @@
+```
+import java.io.*;
+import java.util.*;
+
+public class Main {
+    private static final BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
+    private static final BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(System.out));
+    private static Map<Integer, Integer> map;
+    private static int[] arr;
+    private static int N, K;
+    private static long answer;
+
+    public static void main(String[] args) throws IOException {
+        init();
+
+        bw.write(answer + "\n");
+        bw.flush();
+        bw.close();
+        br.close();
+    }
+
+    private static void init() throws IOException {
+        StringTokenizer st = new StringTokenizer(br.readLine());
+        N = Integer.parseInt(st.nextToken());
+        K = Integer.parseInt(st.nextToken());
+
+        arr = new int[N];
+        map = new HashMap<>();
+
+        st = new StringTokenizer(br.readLine());
+        for (int i = 0; i < N; i++) {
+            arr[i] = Integer.parseInt(st.nextToken());
+        }
+
+        int currentSum = 0;
+
+        for (int n : arr) {
+            currentSum += n;
+
+            if (currentSum == K) answer++;
+
+            if (map.containsKey(currentSum-K)) {
+                answer += map.get(currentSum-K);
+            }
+
+            map.put(currentSum, map.getOrDefault(currentSum, 0) + 1);
+        }
+    }
+}
+```