From 5294e73a21f3402e14fcf3379c721275e2dd19c2 Mon Sep 17 00:00:00 2001
From: Syndamia <kamen@syndamia.com>
Date: Sun, 23 Nov 2025 15:25:29 +0200
Subject: feat(Week08): Add solutions

---
 Week08/Exercise06.cpp | 40 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 40 insertions(+)
 create mode 100644 Week08/Exercise06.cpp

(limited to 'Week08/Exercise06.cpp')

diff --git a/Week08/Exercise06.cpp b/Week08/Exercise06.cpp
new file mode 100644
index 0000000..30ef172
--- /dev/null
+++ b/Week08/Exercise06.cpp
@@ -0,0 +1,40 @@
+#include <iostream>
+
+void swap(double &a, double &b) {
+	double temp = a;
+	a = b;
+	b = temp;
+}
+
+void swapColumns(double* mat, unsigned int rows, unsigned int cols, unsigned int column1, unsigned int column2) {
+	if (column1 >= cols || column2 >= cols)
+		return;
+
+	for (unsigned int row = 0; row < rows; row++)
+		/* За повече информация защо така индексираме в матриците, вижте
+		 * https://syndamia.com/teaching/upp-2025/cpp-pitfalls/#-int73-vs-int3-vs-int
+		 */
+		swap(mat[row * cols + column1], mat[row * cols + column2]);
+}
+
+int main() {
+	const unsigned int ROWS = 3, COLS = 5;
+	double mat[ROWS][COLS];
+
+	for (unsigned int i = 0; i < ROWS; i++)
+		for (unsigned int j = 0; j < COLS; j++)
+			std::cin >> mat[i][j];
+
+	unsigned int col1, col2;
+	std::cin >> col1 >> col2;
+
+	swapColumns((double*)mat, ROWS, COLS, col1, col2);
+
+	for (unsigned int row = 0; row < ROWS; row++) {
+		for (unsigned int col = 0; col < COLS; col++)
+			std::cout << mat[row][col] << ' ';
+		std::cout << std::endl;
+	}
+
+	return 0;
+}
-- 
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