From 59d7723ca0e2bb52d5b2216ca33933d03200d77c Mon Sep 17 00:00:00 2001
From: oncsr <khj20006@naver.com>
Date: Wed, 9 Jul 2025 13:11:38 +0900
Subject: [PATCH] =?UTF-8?q?[20250709]=20BOJ=20/=20G1=20/=20=EC=84=9C?=
 =?UTF-8?q?=EB=A1=9C=EC=86=8C=20/=20=EA=B6=8C=ED=98=81=EC=A4=80?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 ...1 \354\204\234\353\241\234\354\206\214.md" | 114 ++++++++++++++++++
 1 file changed, 114 insertions(+)
 create mode 100644 "khj20006/202507/09 BOJ G1 \354\204\234\353\241\234\354\206\214.md"

diff --git "a/khj20006/202507/09 BOJ G1 \354\204\234\353\241\234\354\206\214.md" "b/khj20006/202507/09 BOJ G1 \354\204\234\353\241\234\354\206\214.md"
new file mode 100644
index 00000000..d86516b9
--- /dev/null
+++ "b/khj20006/202507/09 BOJ G1 \354\204\234\353\241\234\354\206\214.md"	
@@ -0,0 +1,114 @@
+```java
+import java.util.*;
+import java.io.*;
+
+class IOController {
+    BufferedReader br;
+    BufferedWriter bw;
+    StringTokenizer st;
+
+    public IOController() {
+        br = new BufferedReader(new InputStreamReader(System.in));
+        bw = new BufferedWriter(new OutputStreamWriter(System.out));
+        st = new StringTokenizer("");
+    }
+
+    String nextLine() throws Exception {
+        String line = br.readLine();
+        st = new StringTokenizer(line);
+        return line;
+    }
+
+    String nextToken() throws Exception {
+        while (!st.hasMoreTokens()) nextLine();
+        return st.nextToken();
+    }
+
+    int nextInt() throws Exception {
+        return Integer.parseInt(nextToken());
+    }
+
+    long nextLong() throws Exception {
+        return Long.parseLong(nextToken());
+    }
+
+    double nextDouble() throws Exception {
+        return Double.parseDouble(nextToken());
+    }
+
+    void close() throws Exception {
+        bw.flush();
+        bw.close();
+    }
+
+    void write(String content) throws Exception {
+        bw.write(content);
+    }
+
+}
+
+public class Main {
+
+    static IOController io;
+
+    //
+
+    static long A, B, N;
+    static List<Long> list;
+
+    public static void main(String[] args) throws Exception {
+
+        io = new IOController();
+
+        int TC = io.nextInt();
+        for(int tc=1;tc<=TC;tc++) {
+            io.write("Case #" + tc + ": ");
+            init();
+            solve();
+        }
+
+        io.close();
+
+    }
+
+    public static void init() throws Exception {
+
+        A = io.nextLong();
+        B = io.nextLong();
+        N = io.nextLong();
+
+    }
+
+    static void solve() throws Exception {
+
+        list = new ArrayList<>();
+        for(long i=2;i*i<=N;i++) if(N%i == 0) {
+            while(N%i == 0) N/=i;
+            list.add(i);
+        }
+        if(N != 1) list.add(N);
+
+        io.write((f(B) - f(A-1)) + "\n");
+
+    }
+
+    static long f(long x) {
+
+        long res = x;
+        int size = list.size();
+        for(int i=1;i<(1<<size);i++) {
+            int cnt = 0;
+            long v = 1;
+            for(int j=0;j<size;j++) if((i & (1<<j)) != 0) {
+                v *= list.get(j);
+                cnt++;
+            }
+            if(cnt%2 == 1) res -= x/v;
+            else res += x/v;
+        }
+        return res;
+
+    }
+
+}
+```