From 1619e9bdde7fbfaa0c0f9c652f5e76eaab4c94eb Mon Sep 17 00:00:00 2001
From: hanyixuanten <hanyixuanten@outlook.com>
Date: Fri, 14 Aug 2026 10:01:57 +0800
Subject: [PATCH] new file:   6.cpp

---
 6.cpp | 27 +++++++++++++++++++++++++++
 1 file changed, 27 insertions(+)
 create mode 100644 6.cpp

diff --git a/6.cpp b/6.cpp
new file mode 100644
index 0000000..3922abb
--- /dev/null
+++ b/6.cpp
@@ -0,0 +1,27 @@
+// 92
+#include <cstdio>
+using namespace std;
+int c;
+int n;
+void dfs(int now)
+{
+    if (now == n)
+    {
+        for (int i = 1; i <= n; ++i)
+        {
+            if (c & (1 << i))
+                printf("%d ", i);
+        }
+        puts("");
+        return;
+    }
+    dfs(now + 1);
+    c &= (1 << now);
+    dfs(now + 1);
+}
+int main()
+{
+    scanf("%d", &n);
+    dfs(1);
+    return 0;
+}
\ No newline at end of file