我如何得到二维矩阵的总和？

#include < stdio.h >
#define n 10

int main()
{

    float A[n][n], B[n][n], C[n][n], m;
    int i,j;
  char answer;

    printf ("\xB1\xB1 total 2 matriks \xB1\xB1");

  /*Input dimensi matriks*/

    printf ("\n\nInput dimensi matriks(1-10) :");
    scanf ("%f",&m);

    /*Input elemen matriks A */

    printf ("\n\nMatriks A :");

    for (i=0;i<m;i++)
  {
      printf ("\nBaris ke-%d\n",i+1);
         for (j=0;j<m;j++)
         {
          printf ("\tElemen [%d][%d] :",i+1,j+1);
              scanf ("%f",&A[i][j]);
          }
    }

    /*Input elemen matriks B */

    printf ("\n\nMatriks B :");

    for (i=0;i<m;i++)
    {
      printf ("\nLine ke-%d\n",i+1);
         for (j=0;j<m;j++)
      {
              printf ("\tElemen [%d][%d] :",i+1,j+1);
          scanf ("%f",&B[i][j]);
              }
  }
    /*total matriks A dan B */

    for (i=0;i<m;i++)
  for (j=0;j<m;j++)
    C[i][j]=A[i][j]+B[i][j];

  /*Print Output*/

    printf ("\n\nTotal Matriks A dan B adalah :");
  for (i=0;i<m;i++)
    {
         printf ("\n");
         for (j=0;j<m;j++)
         printf ("%12.3f",C[i][j]);
         }

         printf ("\n\nPress any button");


         return 0;
}
#include < stdio.h >
#define n 10

int main()
{