This commit is contained in:
Zengtudor 2025-08-25 17:25:22 +08:00
parent a8ea175f77
commit 797976b853

View File

@ -1,22 +1,41 @@
#include <iostream>
#include <vector>
#include <algorithm>
using namespace std;
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
std::vector<int> nums = {9, 7, 5, 3, 1};
int x = 4;
// 使用upper_bound查找第一个比x大的元素
// 第三个参数是目标值x
// 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;
int a, b, d;
cin >> a >> b >> d;
generate(a, b, c);
recursion(d, c, b);
for (int i = 0; i < b; ++i) cout << c[i] << " ";
cout << endl;
}