Example: Find Transpose of a Matrix in C language using Array

// Find Transpose of a Matrix in C language using Array
#include <stdio.h>

int main() {
    int r, c, i, j;
   	// r - denotes the matrix's rows
   	// c - dentes the matrix's columns

    printf("-----Enter the number of rows & columns of the matrix-----\n");
    scanf("%d %d", &r, &c);

    int a[r][c], t[c][r];
   	// a - denotes the input matrix
   	// t - denotes the transpose matrix

    printf("\n-----Enter the matrix's elements-----\n");
    for (i = 0; i < r; ++i) {
        for (j = 0; j < c; ++j) {
            printf("Enter element at position[%d%d]: ", i + 1, j + 1);
            scanf("%d", &a[i][j]);
        }
        printf("\n");
    }

   	// It will display the input matrix
    printf("\n-----The entered matrix-----\n");
    for (i = 0; i < r; ++i) {
        printf("\t");
        for (j = 0; j < c; ++j) {
            printf("%d\t", a[i][j]);
            if (j == c - 1)
                printf("\n");
        }
        printf("\n");
    }

   	// It will transposes matrix
    for (i = 0; i < r; ++i) {
        for (j = 0; j < c; ++j) {
            t[j][i] = a[i][j];
        }
    }

   	// It will display the transposed matrix
    printf("\n-----The transpose of the matrix-----\n");
    for (i = 0; i < c; ++i) {
        printf("\t");
        for (j = 0; j < r; ++j) {
            printf("%d\t", t[i][j]);
            if (j == r - 1)
                printf("\n");
        }
        printf("\n");
    }
    return 0;
}