From 8ad882a1deea1ae012c6acf8810e3de9babca9f4 Mon Sep 17 00:00:00 2001
From: omagdy7 <omar.professional8777@gmail.com>
Date: Wed, 2 Nov 2022 11:50:58 +0200
Subject: solved 3 problems from cses

---
 cses/BitStrings/main.cpp | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)
 create mode 100644 cses/BitStrings/main.cpp

(limited to 'cses/BitStrings/main.cpp')

diff --git a/cses/BitStrings/main.cpp b/cses/BitStrings/main.cpp
new file mode 100644
index 0000000..db812c5
--- /dev/null
+++ b/cses/BitStrings/main.cpp
@@ -0,0 +1,16 @@
+#include<bits/stdc++.h>
+
+using namespace std;
+
+int main () {
+	ios_base::sync_with_stdio(false);
+	cin.tie(NULL);
+  int n;
+  int m = 1e9 + 7;
+  cin >> n;
+  long long ans = 0;
+  while(n--) {
+    ans += ((2 % m) * (2 % m)) % m;
+  }
+  cout << ans << '\n';
+}
-- 
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