From d383762daabcd4cc5914fdfd173d9748c459469d Mon Sep 17 00:00:00 2001
From: Saksham Gupta <cutesakshamgupta@gmail.com>
Date: Thu, 1 Oct 2020 23:15:30 +0530
Subject: [PATCH] added Armstrong_Number

---
 Leetcode/Armstrong_Number.cpp | 10 ++++++++++
 1 file changed, 10 insertions(+)
 create mode 100644 Leetcode/Armstrong_Number.cpp

diff --git a/Leetcode/Armstrong_Number.cpp b/Leetcode/Armstrong_Number.cpp
new file mode 100644
index 0000000..f49d63e
--- /dev/null
+++ b/Leetcode/Armstrong_Number.cpp
@@ -0,0 +1,10 @@
+class Solution {
+public:
+    bool isArmstrong(int N) {
+        const auto& n_str = to_string(N);
+        return accumulate(n_str.cbegin(), n_str.cend(), 0,
+                          [&](const auto& x, const auto& y) {
+                              return x + pow(y - '0', n_str.length());
+                          }) == N;
+    }
+}