C / C++ / MFC

#include <iostream>
using namespace std;


void transp_v1( char tgt[3][3], char src[3][3] );
void transp_v2( char tgt[3][3], char src[3][3] );
void dump( char m[3][3] );


int main()
{
  char a[3][3] =
  {
    { 'a', 'b', 'c' },
    { 'd', 'e', 'f' },
    { 'g', 'h', 'i' },
  };

  char b[3][3];
  char c[3][3];

  transp_v1( b, a);
  transp_v2( c, a);


  dump(a);
  cout << "--------\n";
  dump(b);
  cout << "--------\n";
  dump(c);
  cout << "--------\n";
}
void transp_v1( char tgt[3][3], char src[3][3] )
{
  for (int i=0; i<3; ++i)
    for (int j=0; j<3; ++j)
      tgt[i][j] = src[j][i];
}

void transp_v2( char tgt[3][3], char src[3][3] )
{
  for (int i=0; i<3; ++i)
    for (int j=0; j<3; ++j)
      tgt[j][i] = src[i][j];
}

void dump( char m[3][3] )
{
  for (int i=0; i<3; ++i)
  {
    for (int j=0; j<3; ++j)
      cout << m[i][j] << " ";
    cout << "\n";
  }
}

a b c 
d e f 
g h i 
--------
a d g 
b e h 
c f i 
--------
a d g 
b e h 
c f i 
--------

#include <stdio.h>
  

int main()
{
  int a[3][3],b[3][3],i,j;
  for(i=0;i<3;i++)
    for(j=0;j<3;j++)
      scanf("%d",&a[i][j]);

  for(i=0;i<3;i++)
  {
    for(j=0;j<3;j++)
    {
      printf("%d ",a[i][j]);
    }
    printf("\n");
  }
  for(i=0;i<3;i++)
  {
    for(j=0;j<3;j++)
    {
      b[j][i]=a[i][j];
    }
    printf("\n");
  }
  for(i=0;i<3;i++)
  {
    for(j=0;j<3;j++)
    {
      printf("%d ",b[i][j]);
    }
    printf("\n");
  }
  return 0;
}

b[j][i]=a[i][j];
printf("%d ",b[i][j]);