Merge pull request #813 from AlgorithmWithGod/JHLEE325

[20250904] BOJ / G5 / 컨베이어 벨트 위의 로봇 / 이준희

Author: ShinHeeEul

JHLEE325/202509/04 BOJ G5 컨베이어 벨트 위의 로봇.md

@@ -0,0 +1,75 @@
+```java
+import java.io.*;
+import java.util.*;
+
+public class Main {
+    static int n, k;
+    static int[] str;
+    static boolean[] robot;
+
+    public static void main(String[] args) throws IOException {
+        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
+        StringTokenizer st = new StringTokenizer(br.readLine());
+
+        n = Integer.parseInt(st.nextToken());
+        k = Integer.parseInt(st.nextToken());
+
+        str = new int[2 * n];
+        robot = new boolean[n];
+
+        st = new StringTokenizer(br.readLine());
+        for (int i = 0; i < 2 * n; i++) {
+            str[i] = Integer.parseInt(st.nextToken());
+        }
+
+        int stage = 0;
+        while (true) {
+            stage++;
+
+            int laststr = str[2 * n - 1];
+            for (int i = 2 * n - 1; i > 0; i--) {
+                str[i] = str[i - 1];
+            }
+            str[0] = laststr;
+
+            for (int i = n - 1; i > 0; i--) {
+                robot[i] = robot[i - 1];
+            }
+            robot[0] = false;
+
+            if (robot[n - 1]) {
+                robot[n - 1] = false;
+            }
+
+            for (int i = n - 2; i >= 0; i--) {
+                if (robot[i] && !robot[i + 1] && str[i + 1] >= 1) {
+                    robot[i] = false;
+                    robot[i + 1] = true;
+                    str[i + 1]--;
+                }
+            }
+
+            if (robot[n - 1]) {
+                robot[n - 1] = false;
+            }
+
+            if (str[0] > 0) {
+                robot[0] = true;
+                str[0]--;
+            }
+
+            int zerostr = 0;
+            for (int d : str) {
+                if (d == 0) {
+                    zerostr++;
+                }
+            }
+            if (zerostr >= k) {
+                break;
+            }
+        }
+
+        System.out.println(stage);
+    }
+}
+```