使用vim进行文本编辑、保存并退出

Question

任务描述
1）读取文件“sort.txt”，文件第一行是十个数字“65,43,79,21,298,12,3,54,44,1”；
2）对读取的“sort.txt”中的十个数字使用冒泡排序进行排序
3）将排序结果写到“result.txt”目录下。

用ubantu完成

Answer 1

#include <stdio.h>
#include<stdlib.h>
#define swap(a, b) \
    {              \
        a ^= b;    \
        b ^= a;    \
        a ^= b;    \
    }
void bubbleSort(int *array, int n)
{
    int i, j, flag;
    for (i = 0; i < n - 1; i++)
    {
        flag = 0;
        for (j = n - 1; j > i; j--)
        {
            if (array[j - 1] > array[j])
            {
                swap(array[j - 1], array[j]);
                flag = 1;
            }
        }
        if (flag == 0)
            break;
    }
}
int main()
{
    FILE *from_fd,*to_fd;
    char *filename = "./sort.txt", *filename1="./result.txt";
    from_fd = fopen(filename, "r+");
    to_fd = fopen(filename1, "w+");
    if (from_fd == NULL)
    {
        printf("open source  file failed!\n");
        return -1;
    }
    if (to_fd == NULL)
    {
        printf("open source  file failed!\n");
        return -1;
    }
    int Array[10];
    int i;
    for(i=0;i<10;i++){
        fscanf(from_fd,"%d",&Array[i]);       
    }
    printf("\n");
    bubbleSort(Array,sizeof(Array)/sizeof(int));
    for(i=0;i<10;i++){
        fprintf(to_fd,"%d ",Array[i]);
    }    
    close(to_fd);
    close(from_fd);
}