Example: Transpose of Matrix With Function in C

// Transpose of Matrix With Function
#include <stdio.h>

#define MAX_ROWS 10
#define MAX_COLS 10

// Function to calculate and store the transpose of a matrix
void transposeMatrix(int original[MAX_ROWS][MAX_COLS], int rows, int cols, int result[MAX_COLS][MAX_ROWS]) {
    for (int i = 0; i < rows; i++) {
        for (int j = 0; j < cols; j++) {
            result[j][i] = original[i][j];
        }
    }
}

// Function to print a matrix
void printMatrix(int matrix_to_print[][MAX_COLS], int rows, int cols) {
    for (int i = 0; i < rows; i++) {
        for (int j = 0; j < cols; j++) {
            printf("%d ", matrix_to_print[i][j]);
        }
        printf("\n");
    }
}

int main() {
    int actual_rows = 3;
    int actual_cols = 2;
    int matrix[MAX_ROWS][MAX_COLS] = {{1, 2}, {3, 4}, {5, 6}}; // Original matrix
    int transpose[MAX_COLS][MAX_ROWS];                       // Transposed matrix

    // Step 1: Print the original matrix
    printf("Original Matrix (%dx%d):\n", actual_rows, actual_cols);
    printMatrix(matrix, actual_rows, actual_cols);

    // Step 2: Calculate the transpose using the function
    transposeMatrix(matrix, actual_rows, actual_cols, transpose);

    // Step 3: Print the transposed matrix
    printf("\nTransposed Matrix (%dx%d):\n", actual_cols, actual_rows);
    // Note: For printMatrix, the matrix_to_print argument needs to be cast or adjusted
    // when passing 'transpose' because its column size is actual_rows, not MAX_COLS.
    // A more robust print function would handle arbitrary 2D array dimensions
    // or take a base pointer and dimensions. For simplicity, we'll print manually here.
    for (int i = 0; i < actual_cols; i++) {
        for (int j = 0; j < actual_rows; j++) {
            printf("%d ", transpose[i][j]);
        }
        printf("\n");
    }

    return 0;
}