Merge pull request #629 from AlgorithmWithGod/lkhyun

[20250808] BOJ / G5 / 1, 2, 3 더하기 4 / 이강현

Author: ShinHeeEul

lkhyun/202508/08 BOJ G5 1, 2, 3 더하기 4.md

@@ -0,0 +1,28 @@
+```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;
+
+
+    public static void main(String[] args) throws Exception {
+        int T = Integer.parseInt(br.readLine());
+
+        for (int t = 0 ; t < T; t++){
+            int n = Integer.parseInt(br.readLine());
+            int[] dp = new int[n+1];
+            dp[0] = 1;
+            for (int i = 1; i <= 3; i++) {
+                for (int j = i; j <= n; j++) {
+                    dp[j] += dp[j-i];
+                }
+            }
+            bw.write(dp[n] + "\n");
+        }
+        bw.close();
+    }
+}
+```