在陣列中插入元素的代碼錯誤

在這里，我撰寫了一個代碼，它接受一個適合用戶的任何大小的陣列，來自用戶同意在集合中插入新整數的位置，并與要插入的整數坐標。

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

void insert(int barray_size, int *A, int new_place, int new_int)
{
    for (int i = barray_size; i >= new_place; i = i - 1)
    {
        *(A   i) = *(A   i - 1); //copies value of cell A[i-1] to cell A[i]
        *(A   i - 1) = 0; //empties cell A[i-1] so that it can take the value A[i-2] in next loop
    }

    *(A   new_place - 1) = new_int; //putting the required integer at A[k]
}

int main()
{
    int n, k, l;
    printf("Please enter array size: ");
    scanf("%d", &n);
    printf("\n");
    int A[n   1];

    for (int i = 0; i < n; i  )
    {
        int temp;
        printf("Enter [%d] element: ", i);
        scanf("%d", &temp);
        A[i] = temp;
        printf("\n");
    }

    A[n] = 0;
    printf("Enter the place where new integer is to be inserted: ");
    scanf("%d", &k);

    if (k < n   1)
    {
        printf("Enter the integer to be inserted: ");
        scanf("%d", &l);
        int t = n   1;
        insert(t, A, k, l);
        printf("The new array is: ");

        for (int i = 0; i < t;   i)
        {
            printf("%d ", A[i]);
        }
    }
    else
    {
        printf("Please enter a valid address.");
    }
}

但是當我運行這段代碼時，它在接受整數位置后終止，但不接受要插入的整數。你介意幫助檢測錯誤嗎？

謝謝

編輯 1：更正了 scanf 中地址的瑣碎錯誤。

現在程式或多或少正確地將整數添加到陣列中（盡管k 1如果在 處請求k，但可以更正）。但是它會A[i 1]用垃圾值列印超出陣列的所有值，盡管最后使用了應該停止列印回圈的 for 回圈A[n 1]。為什么會這樣？

（如果我的疑問是微不足道的或愚蠢的，我深表歉意。我最近開始學習 C 語言，由于缺乏練習，我很容易出現這樣的微不足道的錯誤，并且在練習時需要幫助澄清這些疑問，我在 SO 尋求幫助）

編輯 2：初始化之后A[n] = 0，之前缺少的，程式運行完美并正常終止。

感謝大家的幫助。

uj5u.com熱心網友回復：

你忘記指定變數的地址k和linscanf和你的

改變：

scanf("%d", k);
scanf("%d", l);

到：

scanf("%d", &k);
scanf("%d", &l);

改變：

for (int i = 0; i < n 1; i  )

到：

for (int i = 0; i < t; i  )

下面是修改后的代碼：

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

void insert(int barray_size, int *A, int new_place, int new_int)
{
    for(int i=barray_size; i>new_place; i=i-1)
    {
        *(A i)=*(A i-1);
        *(A i-1)=0; 
    }
    *(A new_place)=new_int; 
}

int main()
{
    int n, k, l;
    printf("Please enter array size: ");
    scanf("%d", &n);
    printf("\n");
    int A[n - 1];
    for (int i=0; i<n; i  )
    {
        int temp;
        printf("Enter [%d] element: ", i);
        scanf("%d", &temp);
        A[i]=temp;
        printf("\n");
    }
    
    printf("Enter the place where new integer is to be inserted: ");
    scanf("%d", &k);
    
    if(k < n)
    {
        printf("Enter the integer to be inserted: ");
        scanf("%d", &l);
        int t=n 1;
        insert(t, A, k, l);
        printf("The new array is: ");
        for (int i = 0; i < t; i  )
        {
            printf("%d ", A[i]);
        }
    }
    else
    {
        printf("Please enter a valid address.");
    }
}

輸出

Please enter array size: 7

Enter [0] element: 1

Enter [1] element: 2

Enter [2] element: 3

Enter [3] element: 4

Enter [4] element: 5

Enter [5] element: 6

Enter [6] element: 7

Enter the place where new integer is to be inserted: 5
Enter the integer to be inserted: 10
The new array is: 1 2 3 4 5 10 6 7 

uj5u.com熱心網友回復：

在你的代碼中，當你這樣做時scanf("%d", )，你需要傳入變數的地址。不是變數本身。您可以嘗試以下操作，看看它是否有效：

int main()
{
    // CODE TO READ ARRAY AS YOU HAVE ALREADY WRITTEN
    printf(("Enter the place where new integer is to be inserted: ");
    scanf("%d", &k); // CHANGE HERE from k to &k
    printf("Enter the integer to be inserted: ");
    scanf("%d", &l); // CHANGE HERE FROM l to &l
    /* CHANGE HERE. 
    You don't need n 1 because when you create an array of size n 1, the indices are from 0 to n. 
    You are reading values only for 0 to n-1 in your loop.
    In your insert function, you are starting at i=n which is the last free space in the array.
    */
    insert(n, A, k, l)
    // REST OF YOUR CODE TO PRINT THE ARRAY
}

標籤：数组 C

上一篇：如何使用python和C列印字符“\n”而不是空格？[復制]

下一篇：組合不同的arityX宏