From c989318aee489912cdf45ad284d0ec3ec2d6774d Mon Sep 17 00:00:00 2001
From: Jihoon Lee <hiyabye0465@gmail.com>
Date: Sun, 29 Dec 2024 00:52:43 +0000
Subject: [PATCH] Add 26173.cpp

---
 26xxx/26173.cpp | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)
 create mode 100644 26xxx/26173.cpp

diff --git a/26xxx/26173.cpp b/26xxx/26173.cpp
new file mode 100644
index 00000000..ef51ab2a
--- /dev/null
+++ b/26xxx/26173.cpp
@@ -0,0 +1,18 @@
+#include <cmath>
+#include <iomanip>
+#include <iostream>
+using namespace std;
+
+void solve(void) {
+  long long a; cin >> a;
+
+  cout << fixed << setprecision(10) << sqrt(a / M_PI) * 2;
+}
+
+int main(void) {
+  ios::sync_with_stdio(false);
+  cin.tie(nullptr);
+
+  solve();
+  return 0;
+}
\ No newline at end of file