【C】矩阵翻转(上下翻转、左右翻转)

#include <stdio.h>
 
void matrix (int m, int n, int t)
{
    int arr[m][n];
    int i, j, k;
 
    for (i = 0; i < m; i++){
        for (j = 0; j < n; j++){
            scanf("%d", &arr[i][j]);
        }
    }
    if (t == 0){//左右翻转
            for (i = 0; i < m; i++){
                for (j = n-1; j >= 0; j--){
                    if ( j == 0 ) {
                        printf("%d", arr[i][j]);
                    }
                    else {
                        printf("%d ", arr[i][j]);
                    }
                }
                printf("\n");
            }
    }
    else if (t == 1){//上下翻转
        for (i = m-1; i >= 0; i--){
            for (j = 0; j < n; j++){
                if ( j == n - 1 ) {
                    printf("%d", arr[i][j]);
                }
                else {
                    printf("%d ", arr[i][j]);
                }
            }
            printf("\n");
        }
    }
}
 
int main()
{
    int m, n, t;
 
    scanf("%d %d %d", &m, &n, &t);
    matrix (m, n, t);
 
    return 0;
}#include <stdio.h>
 
void matrix (int m, int n,