华为机试C语言-整形数组按个位值排序

题目描述：https://pycoder.blog.csdn.net/article/details/124600540

#include 
#include 
#include 
#include 


int myCmp(const void *a, const void *b)
{
    char *aa = (char *)a;
    char *bb = (char *)b;
    
    return aa[strlen(aa) - 1] - bb[strlen(bb) - 1];
}

int main(void)
{
    char str[10000] = {0};
    int arr_inx = 0;
    char arr[1000][10] = {0};
    
    scanf("%s", str);
    
    char *tmp;
    tmp = strtok(str, ",");
    strcpy(arr[arr_inx++], tmp);
    
    while (1) {
        tmp = strtok(NULL, ",");
        if (tmp == NULL) break;
        
        strcpy(arr[arr_inx++], tmp);
    }
    
    qsort(arr, arr_inx, sizeof(arr[0]), myCmp);
    
    for (int i = 0; i < arr_inx - 1; i++) {
        printf("%s,", arr[i]);
    }
    
    printf("%s\n", arr[arr_inx - 1]);
    
    return 0;
}