C语言实现矩阵翻转(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,t); 
  
  return 0; 
} 

void matrix (int m,int t) 
{ 
  int i,j; 
  int **arr=(int**)malloc(m*sizeof(int*)); 
  for(i = 0; i < m; i++) 
  { 
    arr[i] = (int*)malloc(n * sizeof(int)); 
    for(j = 0; j < n;j++) 
    { 
      scanf("%d",&arr[i][j]); 
    } 
  } 
  /* 
  int **arr = new int*[m]; 
  for(i=0;i<m;i++) 
  { 
    arr[i] = new int[n]; 
    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]); 
        } 
      } 
      printf("n"); 
    } 
  } 
}