#include <iostream>

#include "pch.h"
#include <vector>
#include <string>



int main() {

	//Task4
	float a, n;
	int b;
	cin >> a;
	whole(a);
	cout << a << endl;
	whole(&a);
	cout << a << endl;

	//Task7
	cout << "Task7 " << endl;
	cin >> n;
	inverse(n);
	cout << n << endl;
	inverse(&n);
	cout << n << endl;
	inverse(b);
	cout << b << endl;
	inverse(&b);
	cout << b << endl;




	//Task15
	cout << "Task15" << endl;
	vector<vector<float>> M(3, vector<float>(3));
	string str;
	for (int i = 0; i < 3; i++) {
		for (int j = 0; j < 3; j++) {
			cout << "[" << i << "][" << j << "] = ";
			cin >> M[i][j];
		}
	}

	matrix(M);

	cout << "Res1:" << endl;
	for (int i = 0; i < 3; i++) {
		for (int j = 0; j < 3; j++) {
			cout << M[i][j] << " ";
		}
		cout << endl;
	}

	matrix(&M);

	cout << "Res2:" << endl;
	for (int i = 0; i < 3; i++) {
		for (int j = 0; j < 3; j++) {
			cout << M[i][j] << " ";
		}
		cout << endl;
	}
	return 0;
}

#include "pch.h"

//Task4
void whole(float *a) {
	*a = *a / 10;
}

void whole(float& a) {
	a = a / 10;
}


//Task #7
void inverse(float* n) {
	*n = -*n;
}

void inverse(int* b) {
	*b = -*b;
}

void inverse(float& n) {
	n = -n;
}

void inverse(int& b) {
	b = -b;
}

//Task15
void matrix(vector<vector<float>>* M) {
	for (vector<float>& line : *M) {
		for (float& element : line)
			element *= 3;
	}
}

void matrix(vector<vector<float>>& M) {
	for (vector<float>& line : M) {
		for (float& element : line)
			element *= 3;
	}
}



#ifndef PCH_H
#define PCH_H

#pragma once
#include <vector>

using namespace std;
//Task4
void whole(float* a);
void whole(float& a);

//Task7
void inverse(float* n);
void inverse(int* b);
void inverse(float& n);
void inverse(int& b);

//Task15
void matrix(vector<vector<float>>* M);
void matrix(vector<vector<float>>& M);



#endif //PCH_H