c program to perform transpose of a matrix

1#include <stdio.h>
2int main() {
3    int a[10][10], transpose[10][10], r, c, i, j;
4    printf("Enter rows and columns: ");
5    scanf("%d %d", &r, &c);
6
7    // Assigning elements to the matrix
8    printf("\nEnter matrix elements:\n");
9    for (i = 0; i < r; ++i)
10        for (j = 0; j < c; ++j) {
11            printf("Enter element a%d%d: ", i + 1, j + 1);
12            scanf("%d", &a[i][j]);
13        }
14
15    // Displaying the matrix a[][]
16    printf("\nEntered matrix: \n");
17    for (i = 0; i < r; ++i)
18        for (j = 0; j < c; ++j) {
19            printf("%d  ", a[i][j]);
20            if (j == c - 1)
21                printf("\n");
22        }
23
24    // Finding the transpose of matrix a
25    for (i = 0; i < r; ++i)
26        for (j = 0; j < c; ++j) {
27            transpose[j][i] = a[i][j];
28        }
29
30    // Displaying the transpose of matrix a
31    printf("\nTranspose of the matrix:\n");
32    for (i = 0; i < c; ++i)
33        for (j = 0; j < r; ++j) {
34            printf("%d  ", transpose[i][j]);
35            if (j == r - 1)
36                printf("\n");
37        }
38    return 0;
39}
40