feat(Week08): Add solutions

1 files changed, 39 insertions, 0 deletions

diff --git a/Week08/Exercise08.cpp b/Week08/Exercise08.cpp
new file mode 100644
index 0000000..1baef7c
--- /dev/null
+++ b/Week08/Exercise08.cpp
@@ -0,0 +1,39 @@
+#include <iostream>
+
+const unsigned int SIZE = 3;
+
+void inputMatrix(unsigned int mat[SIZE][SIZE]) {
+	for (unsigned int i = 0; i < SIZE; i++)
+		for (unsigned int j = 0; j < SIZE; j++)
+			std::cin >> mat[i][j];
+}
+
+unsigned int multiplyRowCol(const unsigned int matA[SIZE][SIZE], const unsigned int matB[SIZE][SIZE], unsigned int rowA, unsigned int colB) {
+	unsigned int result = 0;
+	for (unsigned int i = 0; i < SIZE; i++)
+		result += matA[rowA][i] * matB[i][colB];
+	return result;
+}
+
+void multiplyMatrices(const unsigned int matA[SIZE][SIZE], const unsigned int matB[SIZE][SIZE], unsigned int out[SIZE][SIZE]) {
+	for (unsigned int row = 0; row < SIZE; row++)
+		for (unsigned int col = 0; col < SIZE; col++)
+			out[row][col] = multiplyRowCol(matA, matB, row, col);
+}
+
+int main() {
+	unsigned int matA[SIZE][SIZE], matB[SIZE][SIZE];
+	inputMatrix(matA);
+	inputMatrix(matB);
+
+	unsigned int mult[SIZE][SIZE];
+	multiplyMatrices(matA, matB, mult);
+
+	for (unsigned int row = 0; row < SIZE; row++) {
+		for (unsigned int col = 0; col < SIZE; col++)
+			std::cout << mult[row][col] << ' ';
+		std::cout << std::endl;
+	}
+
+	return 0;
+}