devc++输出魔方阵

以下是使用Dev-C++输出魔方阵的代码：

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

int main()
{
    int n, i, j, k, row, col;
    int **a;

    printf("请输入一个奇数：");
    scanf("%d", &n);

    if (n <= 0 || n % 2 == 0)
    {
        printf("输入错误！\n");
        return 0;
    }

    a = (int **)malloc(n * sizeof(int *));
    for (i = 0; i < n; i++)
    {
        a[i] = (int *)malloc(n * sizeof(int));
    }

    for (i = 0; i < n; i++)
    {
        for (j = 0; j < n; j++)
        {
            a[i][j] = 0;
        }
    }

    row = 0;
    col = n / 2;
    a[row][col] = 1;

    for (k = 2; k <= n * n; k++)
    {
        if (a[(row - 1 + n) % n][(col + 1) % n] == 0)
        {
            row = (row - 1 + n) % n;
            col = (col + 1) % n;
        }
        else
        {
            row = (row + 1) % n;
        }
        a[row][col] = k;
    }

    printf("魔方阵如下：\n");
    for (i = 0; i < n; i++)
    {
        for (j = 0; j < n; j++)
        {
            printf("%5d", a[i][j]);
        }
        printf("\n");
    }

    for (i = 0; i < n; i++)
    {
        free(a[i]);
    }
    free(a);

    return 0;
}