Nguyễn Huỳnh Minh Đức _23DH110814
Bài 1
namespace _23Dh110814_NguyenHuynhMinhDuc
{
internal class Program
{
Main( [] args)static void string
{
Console.Write("Hay nhap n: ");
n = int int.Parse(Console.ReadLine());
( i = 0; i < n; i++)for int
{
(i % 2 != 0)if
{
Console.Write(i + " ");
}
}
Console.WriteLine();
}
}
}
Bài 2:
namespace ConsoleApp1
{
internal class Program
{
Main( [] args)static void string
{
Console.Write("nhap n: ");
n = int int.Parse(Console.ReadLine());
sum = 0;int
sodu = 0;int
(n > 0)while
{
sodu = n % 10;
n = n / 10;
( sodu % 2 == 0)if
{
sum += sodu;
}
}
Console.WriteLine(sum);
}
}
}
Bài 4
namespace ConsoleApp1
{
internal class Program
{
Main( [] args)static void string
{
Console.Write("nhap n: ");
n = Console.ReadLine();string
soChan(n);
}
soChan( n)static void string
{
count = 0;int
( i = 0; i < n.Length; i++)for int
{
(n[i] % 2 == 0)if
count++;
}
(count == n.Length)if
{
Console.WriteLine($" cac chu so {n} la so chan");
}
else
Console.WriteLine($" cac chu so {n}khong la so chan ");
}
}
}

Preview text:

Nguyễn Huỳnh Minh Đức _23DH110814 Bài 1
namespace _23Dh110814_NguyenHuynhMinhDuc { internal class Program {
static void Main(string[] args) {
Console.Write("Hay nhap n: ");
int n = int.Parse(Console.ReadLine());
for (int i = 0; i < n; i++) { if (i % 2 != 0) { Console.Write(i + " "); } } Console.WriteLine(); } } } Bài 2: namespace ConsoleApp1 { internal class Program {
static void Main(string[] args) { Console.Write("nhap n: ");
int n = int.Parse(Console.ReadLine()); int sum = 0; int sodu = 0; while (n > 0) { sodu = n % 10; n = n / 10; if ( sodu % 2 == 0) { sum += sodu; } } Console.WriteLine(sum); } } } Bài 4 namespace ConsoleApp1 { internal class Program {
static void Main(string[] args) { Console.Write("nhap n: ");
string n = Console.ReadLine(); soChan(n); } static void soChan(string n) { int count = 0;
for (int i = 0; i < n.Length; i++) { if (n[i] % 2 == 0) count++; } if (count == n.Length) {
Console.WriteLine($" cac chu so {n} la so chan"); } else
Console.WriteLine($" cac chu so {n}khong la so chan "); } } }