更新

作业/刘航宇-day44/第二题/P2984.java

@@ -0,0 +1,26 @@
+import java.util.*;
+
+public class P2984 {
+    public static void main(String[] args) {
+        Scanner in = new Scanner(System.in);
+        int n = in.nextInt();
+        List<Long> prev = new ArrayList<>();
+        for (int row = 1; row <= n; row++) {
+            List<Long> cur = new ArrayList<>(row);
+            long val = 1;
+            for (int i = 0; i < row; i++) {
+                if (i == 0) val = 1;
+                else val = cur.get(i - 1) * (row - i) / i;
+                cur.add(val);
+            }
+            StringBuilder sb = new StringBuilder();
+            for (int i = 0; i < cur.size(); i++) {
+                if (i > 0) sb.append(' ');
+                sb.append(cur.get(i));
+            }
+            System.out.println(sb.toString());
+            prev = cur;
+        }
+        in.close();
+    }
+}