Question

我对使用数组有点新意，所以我会尽力评论我所知道的代码的哪些部分，然后我希望你能帮助我解释并澄清其余部分。目标是获得10个元素（数字）然后按顺序排序（从最大到最小，反之亦然）

#include <stdio.h>
#include <stdlib.h>

void input();
void sort();

int array[10];

int main()

{
  char ans='y';
  while(ans=='y'||ans=='Y')  /// Run the program while 'y' is entered
{

input(); // run the input function
sort(); // run the sort function

printf("\n Run Program Again?"); // ask user for input (char ans)
scanf("%s",&ans);

}
} 

void input()
{
  int x;

  for (x = 0; x < 10 ; x++)
{ //This is where I get confused. If my int x is =0, less than 10, I don't know what "++ means
    printf("\nInput: ");  //ask for input
    scanf("%d", &array[x]); //get the input typed in and place in array x
  }
}

void sort()

{
{
int x = 0;
int y = 0;
int z = 0;
int biggerNum = 0;
int smallerNum = 0;  //set values for integers



for (z = 10; z > 0; z--) {  // can someone explain this part?
    for (x = 0; x <= 10; x++) {
        if (array[z] < array[x])
            continue;
        else {
            biggerNum = array[z];
            smallerNum= array[x];
            array[z] = smallerNum;
            array[x] = biggerNum;
            printf("\n%d\t%d",array[z],array[x]);
         }
     }
   }

     printf("\nDescending order:");  

     for (x = 0; x < 10; x++)  // this is the algorithm for going down
         printf("\n %d",array[x]);

     printf("\nAscending Order:"); // same for going up
     for (x = 10; x > 0; x--)
         printf("\n %d",array[x]);
 }

}

Answer 1

我正在描述。我认为这对你有所帮助。

第一部分：

    char ans='y';
    while(ans=='y'||ans=='Y')  /// Run the program while 'y' is entered
    {

        input(); // run the input function
        sort(); // run the sort function

        printf("\n Run Program Again?"); // ask user for input (char ans)
        scanf("%s",&ans);

    }

首先，您按ans初始化'y'（它是一种字符数据类型）。因此，它将进入while循环。然后通过input()函数获取10个数字。然后通过sort()函数，您将这10个数字从最大到最低排序，反之亦然。然后再次输入ans。如果您（用户）再次访问'y'或'Y'，则会继续。否则while循环将中断，程序将终止。

第二部分：

void input()
{
    int x;

    for (x = 0; x < 10 ; x++)
    {
        //This is where I get confused. If my int x is =0, less than 10, I dont
       //know what "++ means
        printf("\nInput: ");  //ask for input
        scanf("%d", &array[x]); //get the input typed in and place in array x
    }
}

此代码实际上用于获取10个数字。这里＆＃39; x++＆＃39;表示x的增量。这意味着x=x+1。您按scanf将这10个数字存储在数组中。

第三部分：

void sort()
{
    {
        int x = 0;
        int y = 0;
        int z = 0;
        int biggerNum = 0;
        int smallerNum = 0;  //set values for integers

        for (z = 10; z > 0; z--)    // can someone explain this part?
        {
            for (x = 0; x <= 10; x++)
            {
                if (array[z] < array[x])
                    continue;
                else
                {
                    biggerNum = array[z];
                    smallerNum= array[x];
                    array[z] = smallerNum;
                    array[x] = biggerNum;
                    printf("\n%d\t%d",array[z],array[x]);
                }
            }
        }

        printf("\nDescending order:");

        for (x = 0; x < 10; x++)  // this is the algorithm for going down
            printf("\n %d",array[x]);

        printf("\nAscending Order:"); // same for going up
        for (x = 10; x > 0; x--)
            printf("\n %d",array[x]);
    }

它是10个数字的分类。实际上它被称为bubble sort。

你能解释一下这段代码对我有用吗？

1 个答案: