[20250924] BOJ / G4 / 함께 블록 쌓기 / 이강현

lkhyun/202509/24 BOJ G4 함께 블록 쌓기.md

@@ -0,0 +1,50 @@
+```java
+import java.util.*;
+import java.io.*;
+
+public class Main{
+    static BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
+    static BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(System.out));
+    static StringTokenizer st;
+    static StringBuilder sb = new StringBuilder();
+    static int N,M,H;
+    static List<Integer>[] blocks;
+
+    public static void main(String[] args) throws Exception {
+        st = new StringTokenizer(br.readLine());
+        N = Integer.parseInt(st.nextToken());
+        M = Integer.parseInt(st.nextToken());
+        H = Integer.parseInt(st.nextToken());
+
+        blocks = new List[N+1];
+        for (int i = 1; i <= N; i++) {
+            blocks[i] = new ArrayList<>(M+1);
+        }
+
+        for (int i = 1; i <= N; i++) {
+            st = new StringTokenizer(br.readLine());
+            while(st.hasMoreTokens()){
+                blocks[i].add(Integer.parseInt(st.nextToken()));
+            }
+            blocks[i].add(0); //블록 안 쌓는 경우 고려
+        }
+
+        int[][] dp = new int[N+1][H+1];//dp[i][j] = i번째 학생까지 고려했을때, j 높이를 쌓는 경우의 수
+        dp[0][0] = 1;
+
+        for (int i = 1; i <= N; i++) {
+            for (int j = 0; j <= H; j++) {
+                for (int cur : blocks[i]) {
+                    if(cur <= j){
+                        dp[i][j] += dp[i-1][j-cur];
+                        dp[i][j] %= 10007;
+                    }       
+                }
+            }
+        }
+        bw.write(dp[N][H] + "");
+        bw.close();
+    }
+
+}
+```