Transpose of Matrix

#include <stdio.h>
int main() {
  int a[10][10], transpose[10][10], r, c, i, j;
  printf("Enter rows and columns: ");
  scanf("%d %d", &r, &c);

  // Assigning elements to the matrix
  printf("\nEnter matrix elements:\n");
  for (i = 0; i < r; ++i)
    for (j = 0; j < c; ++j) {
      printf("Enter element a%d%d: ", i + 1, j + 1);
      scanf("%d", &a[i][j]);
    }

  // Displaying the matrix a[][]
  printf("\nEntered matrix: \n");
  for (i = 0; i < r; ++i)
    for (j = 0; j < c; ++j) {
      printf("%d  ", a[i][j]);
      if (j == c - 1)
        printf("\n");
    }

  // Finding the transpose of matrix a
  for (i = 0; i < r; ++i)
    for (j = 0; j < c; ++j) {
      transpose[j][i] = a[i][j];
    }

  // Displaying the transpose of matrix a
  printf("\nTranspose of the matrix:\n");
  for (i = 0; i < c; ++i)
    for (j = 0; j < r; ++j) {
      printf("%d  ", transpose[i][j]);
      if (j == r - 1)
        printf("\n");
    }
  return 0;
}