From a74616df6e443a0fbffde83f33bd82d889509cea Mon Sep 17 00:00:00 2001
From: YeonguChoe <yeongu.choe@icloud.com>
Date: Sat, 10 Aug 2024 23:47:30 -0400
Subject: [PATCH 1/2] Create yeongu.cpp

---
 contains-duplicate/yeongu.cpp | 13 +++++++++++++
 1 file changed, 13 insertions(+)
 create mode 100644 contains-duplicate/yeongu.cpp

diff --git a/contains-duplicate/yeongu.cpp b/contains-duplicate/yeongu.cpp
new file mode 100644
index 000000000..2afd5659b
--- /dev/null
+++ b/contains-duplicate/yeongu.cpp
@@ -0,0 +1,13 @@
+class Solution {
+public:
+    bool containsDuplicate(vector<int>& nums) {
+        set<int> unique;
+        for (int i : nums) {
+            if (unique.find(i) != unique.end()) {
+                return true;
+            }
+            unique.insert(i);
+        }
+        return false;
+    }
+};

From ec54f9bad9f2259ac2d6b3c08bd47520c66a5449 Mon Sep 17 00:00:00 2001
From: YeonguChoe <yeongu.choe@icloud.com>
Date: Sat, 10 Aug 2024 23:55:12 -0400
Subject: [PATCH 2/2] Create yeongu.cpp

---
 number-of-1-bits/yeongu.cpp | 12 ++++++++++++
 1 file changed, 12 insertions(+)
 create mode 100644 number-of-1-bits/yeongu.cpp

diff --git a/number-of-1-bits/yeongu.cpp b/number-of-1-bits/yeongu.cpp
new file mode 100644
index 000000000..1951308b7
--- /dev/null
+++ b/number-of-1-bits/yeongu.cpp
@@ -0,0 +1,12 @@
+class Solution {
+public:
+    int hammingWeight(int n) {
+        int cnt = 0;
+        while(n>0){
+            int val = n%2;
+            cnt+=val;
+            n/=2;
+        }
+        return cnt;
+    }
+};