2728 solved.

liuyubobobo · liuyubobobo · commit 39b33d4f4635 · 2023-06-08T15:49:37.000-07:00
diff --git a/2501-3000/2728-Count-Houses-in-a-Circular-Street/cpp-2728/CMakeLists.txt b/2501-3000/2728-Count-Houses-in-a-Circular-Street/cpp-2728/CMakeLists.txt
@@ -0,0 +1,6 @@
+cmake_minimum_required(VERSION 3.25)
+project(cpp_2728)
+
+set(CMAKE_CXX_STANDARD 17)
+
+add_executable(cpp_2728 main.cpp)
diff --git a/2501-3000/2728-Count-Houses-in-a-Circular-Street/cpp-2728/main.cpp b/2501-3000/2728-Count-Houses-in-a-Circular-Street/cpp-2728/main.cpp
@@ -0,0 +1,49 @@
+/// Source : https://leetcode.com/problems/count-houses-in-a-circular-street/description/
+/// Author : liuyubobobo
+/// Time   : 2023-06-08
+
+#include <iostream>
+
+using namespace std;
+
+
+/// Ad-Hoc
+/// Time Complexity: O(k)
+/// Space Complexity: O(1)
+
+/// Definition for a street.
+class Street {
+public:
+    Street(vector<int> doors);
+    void openDoor();
+    void closeDoor();
+    bool isDoorOpen();
+    void moveRight();
+    void moveLeft();
+};
+
+class Solution {
+public:
+    int houseCount(Street* street, int k) {
+
+        for(int i = 0; i < k; i ++, street->moveRight())
+            if(street->isDoorOpen())
+                street->closeDoor();
+
+        street->openDoor();
+        street->moveRight();
+
+        int res = 1;
+        while(!street->isDoorOpen()){
+            res ++;
+            street->moveRight();
+        }
+        return res;
+    }
+};
+
+
+int main() {
+
+    return 0;
+}
diff --git a/readme.md b/readme.md
@@ -2620,6 +2620,15 @@ email: [liuyubobobo@gmail.com](mailto:liuyubobobo@gmail.com)
 | 2717 | [Semi-Ordered Permutation](https://leetcode.com/problems/semi-ordered-permutation/) | [无] | [C++](2001-2500/2717-Semi-Ordered-Permutation/cpp-2717/) | | |
 | 2718 | [Sum of Matrix After Queries](https://leetcode.com/problems/sum-of-matrix-after-queries/) | [无] | [C++](2001-2500/2718-Sum-of-Matrix-After-Queries/cpp-2718/) | | |
 | 2719 | [Count of Integers](https://leetcode.com/problems/count-of-integers/) | [无] | [C++](2001-2500/2719-Count-of-Integers/cpp-2719/) | | |
+| 2720 | Database Problem: [Link](https://github.com/liuyubobobo/Play-Leetcode-Database/) | - | - | - | - |
+| 2721 | JavaScript Problem | - | - | - | - |
+| 2722 | JavaScript Problem | - | - | - | - |
+| 2723 | JavaScript Problem | - | - | - | - |
+| 2724 | JavaScript Problem | - | - | - | - |
+| 2725 | JavaScript Problem | - | - | - | - |
+| 2726 | JavaScript Problem | - | - | - | - |
+| 2727 | JavaScript Problem | - | - | - | - |
+| 2728 | [Count Houses in a Circular Street](https://leetcode.com/problems/count-houses-in-a-circular-street/description/) | [无] | [C++](2001-2500/2728-Count-Houses-in-a-Circular-Street/cpp-2728/) | | |
 | | | | | | |
 
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