solve

README.md

@@ -14,18 +14,19 @@
 ## 📝 문제 풀이 기록
 > 2025-06-25(1)
 
-1. [**[PCCE 기출문제] 1번 / 문자 출력**](https://github.com/Arma75/programmers-in-java/blob/main/level0/340207/Solution.java)
+1. [**[PCCE 기출문제] 1번 / 문자 출력**](https://github.com/Arma75/programmers-in-java/blob/main/level0/340207)
 
-> 2025-06-26(11)
+> 2025-06-26(12)
 
-1. [**[PCCE 기출문제] 1번 / 문자 출력**](https://github.com/Arma75/programmers-in-java/blob/main/level0/340207/Solution.java)   
-2. [**[PCCE 기출문제] 2번 / 각도 합치기**](https://github.com/Arma75/programmers-in-java/blob/main/level0/340206/Solution.java)   
-3. [**[PCCE 기출문제] 3번 / 수 나누기**](https://github.com/Arma75/programmers-in-java/blob/main/level0/340205/Solution.java)   
-4. [**[PCCE 기출문제] 4번 / 병과분류**](https://github.com/Arma75/programmers-in-java/blob/main/level0/340204/Solution.java)   
-5. [**[PCCE 기출문제] 5번 / 심폐소생술**](https://github.com/Arma75/programmers-in-java/blob/main/level0/340203/Solution.java)   
-6. [**[PCCE 기출문제] 6번 / 물 부족**](https://github.com/Arma75/programmers-in-java/blob/main/level0/340202/Solution.java)   
-7. [**[PCCE 기출문제] 7번 / 버스**](https://github.com/Arma75/programmers-in-java/blob/main/level0/340201/Solution.java)   
-8. [**[PCCE 기출문제] 8번 / 닉네임 규칙**](https://github.com/Arma75/programmers-in-java/blob/main/level0/340200/Solution.java)   
-9. [**[PCCE 기출문제] 9번 / 지폐 접기**](https://github.com/Arma75/programmers-in-java/blob/main/level1/340199/Solution.java)   
-10. [**[PCCE 기출문제] 10번 / 공원**](https://github.com/Arma75/programmers-in-java/blob/main/level1/340198/Solution.java)   
-11. [**유연근무제**](https://github.com/Arma75/programmers-in-java/blob/main/level1/388351/Solution.java)   
+1. [**[PCCE 기출문제] 1번 / 문자 출력**](https://github.com/Arma75/programmers-in-java/blob/main/level0/340207)   
+2. [**[PCCE 기출문제] 2번 / 각도 합치기**](https://github.com/Arma75/programmers-in-java/blob/main/level0/340206)   
+3. [**[PCCE 기출문제] 3번 / 수 나누기**](https://github.com/Arma75/programmers-in-java/blob/main/level0/340205)   
+4. [**[PCCE 기출문제] 4번 / 병과분류**](https://github.com/Arma75/programmers-in-java/blob/main/level0/340204)   
+5. [**[PCCE 기출문제] 5번 / 심폐소생술**](https://github.com/Arma75/programmers-in-java/blob/main/level0/340203)   
+6. [**[PCCE 기출문제] 6번 / 물 부족**](https://github.com/Arma75/programmers-in-java/blob/main/level0/340202)   
+7. [**[PCCE 기출문제] 7번 / 버스**](https://github.com/Arma75/programmers-in-java/blob/main/level0/340201)   
+8. [**[PCCE 기출문제] 8번 / 닉네임 규칙**](https://github.com/Arma75/programmers-in-java/blob/main/level0/340200)   
+9. [**[PCCE 기출문제] 9번 / 지폐 접기**](https://github.com/Arma75/programmers-in-java/blob/main/level1/340199)   
+10. [**[PCCE 기출문제] 10번 / 공원**](https://github.com/Arma75/programmers-in-java/blob/main/level1/340198)   
+11. [**유연근무제**](https://github.com/Arma75/programmers-in-java/blob/main/level1/388351)   
+12. [**택배 상자 꺼내기**](https://github.com/Arma75/programmers-in-java/blob/main/level1/389478)   

level1/389478/Solution.java

@@ -0,0 +1,24 @@
+// https://school.programmers.co.kr/learn/courses/30/lessons/389478
+import java.util.Arrays;
+
+class Solution {
+    public int solution(int n, int w, int num) {
+        int[] h = new int[w];
+        for( int i = 0; i < w; i++ ) {
+            int height  = 0;
+            int m = i;
+
+            while( n > m ) {
+                m += (w - (m - height * w)) * 2 - 1;
+                height++;
+            }
+
+            h[i] = height;
+        }
+
+        int sy = (num - 1) / w + 1;
+        int sx = sy % 2 == 0? w - (num - 1) % w - 1 : (num - 1) % w;
+
+        return h[w == 1? 0 : sx] - sy + 1;
+    }
+}