MatrixTriangularSwap

#include <iostream>
using namespace std;

int** AllocateMemory(int& rows, int& cols) {

	int** matrix;
	matrix = new int* [rows];

	for (int i = 0; i < rows; i++)
		matrix[i] = new int[cols];

	return matrix;
}

void InputMatrix(int** matrix, const int rows, const int cols) {

	for (int i = 0; i < rows; i++) {

		for (int j = 0; j < cols; j++) {

			cout << "Enter elements for matrix m[" << i << "][" << j << "]   :";
			cin >> matrix[i][j];

		}

	}
}
void DisplayMatrix(int** matrix, const int& rows, const int& cols) {

	for (int i = 0; i < rows; i++) {

		for (int j = 0; j < cols; j++) {

			cout << matrix[i][j] << " ";
		}
		cout << endl;
	}
}

void swapTriangular(int** matrix, const int& rows, const int& cols) {

	if (rows == cols) {

		for (int i = 0; i < rows; i++) {

			int temp;

			for (int j = 0; j < cols / 2; j++) {

				temp = matrix[i][j];
				matrix[i][j] = matrix[i][cols - j - 1];
				matrix[i][cols - j - 1] = temp;

			}

		}

		for (int i = 0, j = rows - i - 1; i < rows / 2; i++, j--) {

			int tem;

			for (int k = 0; k < cols; k++) {

				tem = matrix[i][k];
				matrix[i][k] = matrix[j][k];
				matrix[j][k] = tem;

			}

		}
	}
	else {
		return;
	}
}

int main() {
	int rows, cols;
	cout << "Enter the number of rows: ";
	cin >> rows;
	cout << "Enter the number of columns: ";
	cin >> cols;

	//Allocate memory for matrix
	int** matrix = AllocateMemory(rows, cols);

	// Input matrix elements from the user
	InputMatrix(matrix, rows, cols);

	// Display the input matrix
	DisplayMatrix(matrix, rows, cols);
	cout << "\n\n";

	swapTriangular(matrix, rows, cols);
	DisplayMatrix(matrix, rows, cols);
	return 0;
}