update

src/test.cpp

@@ -1,22 +1,41 @@
 #include <iostream>
-#include <vector>
+using namespace std;
-#include <algorithm>
+
+const int N = 1000;
+int c[N];
+
+int logic(int x, int y) {
+    return (x & y) ^ ((x ^ y) | (~x & y));
+}
+
+void generate(int a, int b, int *c) {
+    for (int i = 0; i < b; i++)
+        c[i] = logic(a, i) % (b + 1);
+}
+
+void recursion(int depth, int *arr, int size) {
+    if (depth <= 0 || size <= 1) return;
+    int pivot = arr[0];
+    int i = 0, j = size - 1;
+    while (i <= j) {
+        while (arr[i] < pivot) i++;
+        while (arr[j] > pivot) j--;
+        if (i <= j) {
+            int temp = arr[i];
+            arr[i] = arr[j];
+            arr[j] = temp;
+            i++; j--;
+        }
+    }
+    recursion(depth - 1, arr, j + 1);
+    recursion(depth - 1, arr + i, size - i);
+}
 
 int main() {
-    // 降序序列
+    int a, b, d;
-    std::vector<int> nums = {9, 7, 5, 3, 1};
+    cin >> a >> b >> d;
-    int x = 4;
+    generate(a, b, c);
-    
+    recursion(d, c, b);
-    // 使用upper_bound查找第一个比x大的元素
+    for (int i = 0; i < b; ++i) cout << c[i] << " ";
-    // 第三个参数是目标值x
+    cout << endl;
-    // 第四个参数是自定义比较函数，保持降序的比较逻辑
-    auto it = std::upper_bound(nums.begin(), nums.end(), x, std::greater<int>());
-    
-    if (it != nums.end()) {
-        std::cout << "第一个比" << x << "大的数是: " << *it << std::endl;
-    } else {
-        std::cout << "没有比" << x << "大的数" << std::endl;
-    }
-    
-    return 0;
 }