#include <stdio.h>
// 交换两个元素的值
void swap(int *a, int *b) {
int temp = *a;
*a = *b;
*b = temp;
}
// 冒泡排序
void bubbleSort(int arr[], int n) {
for (int i = 0; i < n - 1; i++) {
for (int j = 0; j < n - i - 1; j++) {
if (arr[j] > arr[j + 1]) {
swap(&arr[j], &arr[j + 1]);
}
}
}
}
// 选择排序
void selectionSort(int arr[], int n) {
for (int i = 0; i < n - 1; i++) {
int minIndex = i;
for (int j = i + 1; j < n; j++) {
if (arr[j] < arr[minIndex]) {
minIndex = j;
}
}
swap(&arr[minIndex], &arr[i]);
}
}
// 插入排序
void insertionSort(int arr[], int n) {
for (int i = 1; i < n; i++) {
int key = arr[i];
int j = i - 1;
while (j >= 0 && arr[j] > key) {
arr[j + 1] = arr[j];
j--;
}
arr[j + 1] = key;
}
}
// 希尔排序
void shellSort(int arr[], int n) {
for (int gap = n / 2; gap > 0; gap /= 2) {
for (int i = gap; i < n; i++) {
int temp = arr[i];
int j;
for (j = i; j >= gap && arr[j - gap] > temp; j -= gap) {
arr[j] = arr[j - gap];
}
arr[j] = temp;
}
}
}
// 快速排序的分区函数
int partition(int arr[], int low, int high) {
int pivot = arr[high];
int i = low - 1;
for (int j = low; j < high; j++) {
if (arr[j] < pivot) {
i++;
swap(&arr[i], &arr[j]);
}
}
swap(&arr[i + 1], &arr[high]);
return i + 1;
}
// 快速排序
void quickSort(int arr[], int low, int high) {
if (low < high) {
int pi = partition(arr, low, high);
quickSort(arr, low, pi - 1);
quickSort(arr, pi + 1, high);
}
}
// 归并排序的合并函数
void merge(int arr[], int l, int m, int r) {
int n1 = m - l + 1;
int n2 = r - m;
int L[n1], R[n2];
for (int i = 0; i < n1; i++) {
L[i] = arr[l + i];
}
for (int j = 0; j < n2; j++) {
R[j] = arr[m + 1 + j];
}
int i = 0, j = 0, k = l;
while (i < n1 && j < n2) {
if (L[i] <= R[j]) {
arr[k] = L[i];
i++;
} else {
arr[k] = R[j];
j++;
}
k++;
}
while (i < n1) {
arr[k] = L[i];
i++;
k++;
}
while (j < n2) {
arr[k] = R[j];
j++;
k++;
}
}
// 归并排序
void mergeSort(int arr[], int l, int r) {
if (l < r) {
int m = l + (r - l) / 2;
mergeSort(arr, l, m);
mergeSort(arr, m + 1, r);
merge(arr, l, m, r);
}
}
// 打印数组
void printArray(int arr[], int n) {
for (int i = 0; i < n; i++) {
printf("%d ", arr[i]);
}
printf("\n");
}
int main() {
int arr[] = {12, 11, 13, 5, 6, 7};
int n = sizeof(arr) / sizeof(arr[0]);
printf("Original array: ");
printArray(arr, n);
// 冒泡排序
int arr1[n];
for (int i = 0; i < n; i++) {
arr1[i] = arr[i];
}
bubbleSort(arr1, n);
printf("Bubble sorted array: ");
printArray(arr1, n);
// 选择排序
int arr2[n];
for (int i = 0; i < n; i++) {
arr2[i] = arr[i];
}
selectionSort(arr2, n);
printf("Selection sorted array: ");
printArray(arr2, n);
// 插入排序
int arr3[n];
for (int i = 0; i < n; i++) {
arr3[i] = arr[i];
}
insertionSort(arr3, n);
printf("Insertion sorted array: ");
printArray(arr3, n);
// 希尔排序
int arr4[n];
for (int i = 0; i < n; i++) {
arr4[i] = arr[i];
}
shellSort(arr4, n);
printf("Shell sorted array: ");
printArray(arr4, n);
// 快速排序
int arr5[n];
for (int i = 0; i < n; i++) {
arr5[i] = arr[i];
}
quickSort(arr5, 0, n - 1);
printf("Quick sorted array: ");
printArray(arr5, n);
// 归并排序
int arr6[n];
for (int i = 0; i < n; i++) {
arr6[i] = arr[i];
}
mergeSort(arr6, 0, n - 1);
printf("Merge sorted array: ");
printArray(arr6, n);
return 0;
}
根据这个代码重新生成生500、10000、50000、100000 四个量级的随机整型关键字,按 “每行一个” 规范写入文件,完成正整数输入校验及文件打开、内存分配等异常处理,适配 VS2022 Preview 环境的代码
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