矩陣的翻轉

#include <stdio.h>

int arr[100][100];

int main(void)
{
    int row, column, i, j;

    while (scanf("%d%d", &row, &column) == 2)
    {
        for (i = 0; i < row; i++)
            for (j = 0; j < column; j++)
                scanf("%d", &arr[j][i]);

        for (i = 0; i < column; i++)
        {
            printf("%d", arr[i][0]);
            for (j = 1; j < row; j++)
                printf(" %d", arr[i][j]);
            printf("\n");
        }
    }
    return 0;
}