// Multiplication of Two Matrices
#include <stdio.h>
// Function to perform matrix multiplication
void multiplyMatrices(int A[10][10], int B[10][10], int result[10][10], int rowA, int colA, int rowB, int colB) {
int i,j,k;
for (i = 0; i < rowA; i++) {
for (j = 0; j < colB; j++) {
result[i][j] = 0; // Initializing the result matrix with 0
for (k = 0; k < colA; k++) {
result[i][j] += A[i][k] * B[k][j];
}
}
}
}
// Function to input matrix elements
void inputMatrix(int matrix[10][10], int rows, int cols) {
int i,j;
printf("Enter elements of the matrix (%dx%d):\n", rows, cols);
for (i = 0; i < rows; i++) {
for (j = 0; j < cols; j++) {
scanf("%d", &matrix[i][j]);
}
}
}
// Function to display a matrix
void displayMatrix(int matrix[10][10], int rows, int cols) {
int i,j;
for (i = 0; i < rows; i++) {
for (j = 0; j < cols; j++) {
printf("%d ", matrix[i][j]);
}
printf("\n");
}
}
int main() {
int A[10][10], B[10][10], result[10][10];
int rowA, colA, rowB, colB;
// Input matrix dimensions
printf("Enter the number of rows and columns for Matrix A: ");
scanf("%d %d", &rowA, &colA);
printf("Enter the number of rows and columns for Matrix B: ");
scanf("%d %d", &rowB, &colB);
// Check if multiplication is possible (columns of A must be equal to rows of B)
if (colA != rowB) {
printf("Matrix multiplication is not possible. The number of columns of A must be equal to the number of rows of B.\n");
return 1; // Exit the program if multiplication is not possible
}
// Input matrices A and B
printf("Input matrix A:\n");
inputMatrix(A, rowA, colA);
printf("Input matrix B:\n");
inputMatrix(B, rowB, colB);
// Perform matrix multiplication
multiplyMatrices(A, B, result, rowA, colA, rowB, colB);
// Display the result
printf("\nMatrix A:\n");
displayMatrix(A, rowA, colA);
printf("\nMatrix B:\n");
displayMatrix(B, rowB, colB);
printf("\nResultant Matrix (A * B):\n");
displayMatrix(result, rowA, colB);
return 0;
} |
