#include <iostream>
using namespace std;

void nhap_mang(int a[], int &n)
{
	cout << "Nhap so phan tu cua mang: ";
	cin >> n;
	for (int i = 0; i < n; i++)
	{
		cout << "Nhap phan tu arr[" << i + 1 << "] = ";
		cin >> a[i];
	}
}

void xuat_mang(int a[], int n)
{
	for (int i = 0; i < n; i++)
		cout << "arr[" << i + 1 << "] = " << a[i] << endl;
}

void liet_ke(int a[], int n, int k)
{
	for (int i = 0; i < n; i++)
	if (a[i] == k)
		cout << i << "\t";
}

void nhap_mang_2c(int a[][100], int &n, int &m)
{
	cout << "Nhap n: ";
	cin >> n;
	cout << "Nhap m: ";
	cin >> m;

	for (int i = 0; i < m; i++)
	{
		for (int j = 0; j < n; j++)
		{
			cout << "arr[" << i << "][" << j << "] = ";
			cin >> a[i][j];
		}
	}
}


void xuat_mang_2c(int a[][100], int n, int m)
{
	for (int i = 0; i < m; i++)
	{
		for (int j = 0; j < n; j++)
		{
			cout << a[i][j] << "\t";
		}
		cout << "\n";
	}
}

void main()
{
	// khai bao mang a kieu int kich thuoc la 1000
	int arr[1000]; 
	// khai bao mang 2 chieu
	int arr2[100][100];
	// chi so mang trong c danh tu 0 di
	// n - 1 la chi so phan tu cuoi cung

	int n, m;

	nhap_mang_2c(arr2, n, m);
	xuat_mang_2c(arr2, n, m);
}