From 5bb68053ebcb5eae7f756b11672326e601c59da6 Mon Sep 17 00:00:00 2001
From: Angel Dimitriev <achi_d@abv.bg>
Date: Wed, 22 Dec 2021 18:52:10 +0200
Subject: Create example4.cpp

---
 Sem. 10/example4.cpp | 85 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 85 insertions(+)
 create mode 100644 Sem. 10/example4.cpp

(limited to 'Sem. 10/example4.cpp')

diff --git a/Sem. 10/example4.cpp b/Sem. 10/example4.cpp
new file mode 100644
index 0000000..8d2105e
--- /dev/null
+++ b/Sem. 10/example4.cpp	
@@ -0,0 +1,85 @@
+#include <iostream>
+using namespace std;
+
+
+unsigned input(int**& matrix, int*& sizes)
+{
+	unsigned N;
+	cin >> N;
+
+	matrix = new int*[N];
+	sizes = new int[N];
+
+	for (unsigned i = 0; i < N; i++)
+	{
+		unsigned currentRowSize;
+		cin >> currentRowSize;
+
+		matrix[i] = new int[currentRowSize];
+		sizes[i] = currentRowSize;
+
+		for (unsigned j = 0; j < currentRowSize; j++)
+			cin >> matrix[i][j];
+	}
+
+	return N;
+}
+
+
+int* concat(const int* row1, unsigned row1Size, const int* row2, unsigned row2Size)
+{
+	int* result = new int[row1Size + row2Size];
+
+	for (unsigned i = 0; i < row2Size; i++)
+		result[i] = row2[i];
+	
+	for (unsigned i = 0; i < row1Size; i++)
+		result[row2Size + i] = row1[i];
+
+	return result;
+}
+
+void freeMatrix(int** matrix, unsigned rowsSize)
+{
+	for (int i = 0; i < rowsSize; i++)
+		delete[] matrix[i];
+	delete[] matrix;
+}
+
+void task(int** matrix, unsigned N, int* sizes)
+{
+	unsigned resultRowsCount = (N + 1) / 2;
+	int** resultMatrix = new int*[resultRowsCount];
+
+	int* resultSizes = new int[resultRowsCount];
+
+	for (unsigned i = 0; i < resultRowsCount; i++)
+	{
+		resultSizes[i] = sizes[i] + sizes[N - i - 1];
+		resultMatrix[i] = concat(matrix[i], sizes[i], matrix[N - i - 1], sizes[N - i - 1]);
+	}
+
+	//print
+	for (unsigned i = 0; i < resultRowsCount; i++)
+	{
+		for (unsigned j = 0; j < resultSizes[i]; j++)
+			cout << resultMatrix[i][j] << " ";
+		cout << endl;
+	}
+
+	delete[] resultSizes;
+	freeMatrix(resultMatrix, resultRowsCount);
+
+	delete[] sizes;
+	freeMatrix(matrix, N);
+}
+
+int main()
+{
+	int** matrix;
+	int* sizes;
+
+	unsigned N = input(matrix, sizes); //not sure if I need this func
+
+	task(matrix, N, sizes);
+}
-- 
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