实验八第一题

homework8/CMakeLists.txt

@@ -0,0 +1,6 @@
+cmake_minimum_required(VERSION 3.30)
+project(homework8)
+
+set(CMAKE_CXX_STANDARD 20)
+
+add_executable(test1 test1.cpp)

homework8/test1.cpp

@@ -0,0 +1,46 @@
+#include<iostream>
+#include<vector>
+
+using namespace std;
+
+template<typename T>
+void ShellSort(vector<T> &v) {
+    int gap = v.size() / 2;
+
+    while (gap > 0) {
+        for (int i = gap; i < v.size(); i++) {
+            T temp = v[i];
+            int j;
+            for (j = i; j >= gap && v[j - gap] > temp; j -= gap) {
+                v[j] = v[j - gap];
+            }
+            v[j] = temp;
+        }
+        cout << "间隔：" << gap << endl << "排序后：";
+        for (int k = 0; k < v.size(); ++k) {
+            cout << v[k] << " ";
+        }
+        cout << endl;
+        gap = gap / 2;
+    }
+}
+
+int main() {
+    vector<int> v = {1, 3, 2, 4, 6, 5, 7, 10, 9, 8};
+    vector<int>::iterator it;
+    cout << "排序前" << endl;
+    for (it = v.begin(); it != v.end(); it++) {
+        cout << *it << " ";
+    }
+    cout << endl;
+
+    ShellSort(v);
+
+    cout << "排序后：" << endl;
+    for (it = v.begin(); it != v.end(); it++) {
+        cout << *it << " ";
+    }
+    cout << endl;
+
+    return 0;
+}