From 0e8f9b9065dc278f9bbd78eb1049a140a7d2733f Mon Sep 17 00:00:00 2001
From: Eat-Swap <root@eatswap.org>
Date: Thu, 26 May 2022 20:22:59 +0800
Subject: [PATCH] add: 220526 [cpp]

---
 cpp/2205/220526.cpp | 13 +++++++++++++
 1 file changed, 13 insertions(+)
 create mode 100644 cpp/2205/220526.cpp

diff --git a/cpp/2205/220526.cpp b/cpp/2205/220526.cpp
new file mode 100644
index 0000000..3e6b024
--- /dev/null
+++ b/cpp/2205/220526.cpp
@@ -0,0 +1,13 @@
+#include <cstdint>
+
+/**
+ * 191. Number of 1 Bits
+ * Write a function that takes an unsigned integer and returns the number of '1' bits it has (also known as the Hamming weight).
+ */
+
+class Solution {
+public:
+	int hammingWeight(uint32_t n) {
+		return __builtin_popcount(n);
+	}
+};