static void Main() { Console.WriteLine("Please enter your username"); string usrname = Console.ReadLine(); while (usrname != username) { Console.WriteLine("Incorrect username, please try again."); Console.WriteLine("Please enter your username"); string usrname = Console.ReadLine(); } if (usrname == username) { Console.WriteLine("Authorized"); } Console.WriteLinne("Now Please enter your password"); string password = Console.ReadLine(); while (password != password) { Cosole.WriteLine("Incorrect password, please try again."); Console.WriteLine("Please enter your Password"); string password = Console.ReadLine(); } if (password == password) { Console.WriteLine("You are in!!); } if (usrname == username && password == password) { Console.WriteLine("Hello, welcome to the prgram"); } else { break; } //To terminatethe program Console.WriteLine("Press any key to exit."); Console.ReadKey(); }
static void Main(string[] args) { int i, n, k, left = 0, pos = 0; Console.WriteLine("enter the number of people\n"); n = int.Parse(Console.Readline()); int[] a = new int[n + 1]; Console.WriteLine("enter the step at which person should be executed \n"); k = int.Parse(Cosole.ReadLine()); for (i = 1; i <= n; i++) { a[i] = i; } i = 1; while (left != n - 1) { if (a[i] != 0) { pos++; if (pos == k) { a[i] = 0; left++; pos = 0; } } i++; if (i > n) { i = 1; } for (i = 1; i < n; i++) { Console.WriteLine("\n"); Console.WriteLine(a[i] + "is the person alive\n"); break; } } }
static void Main(string[] args) { int i = 1; while (i <= 10) { Console.WriteLine(i); i++; } // for ( (1) int i = 1; (2, 6)i <= 10; (5) i++ ) // { // (3) // (4) // ... // } for (int i = 1; i <= 10; i++) { Console.WriteLine(i); } int a = Convert.ToInt32(Console.ReadLine()); int atz = 1; for (int i = 2; i <= a; i++) { atz = atz * i; } Console.WriteLine(atz); int sum = 0; for (int i = 1; i <= 100; i++) { sum = sum + i; } Cosole.WriteLine(sum); /* * for ([1] int i = 1; [2] i <= 5; i++) * { * [3] * for ([4] int j = 1; [5, 8, 11] j <= i; [7,10] j++) * { * [6,9] Console.Write( j ); * } * ... * Console.WriteLine(); * * //Console.WriteLine( i ); * * } */ for (int i = 5; i <= 5; i++) { for (int j = 1; j <= i; j++) { Console.Write(j); } Console.WriteLine(); //Console.WriteLine( i ); } //int i = 5; Console.WriteLine("Select your option:"); Console.WriteLine("1. Add"); Console.WriteLine("2. Subtract"); Console.WriteLine("3. Multiply"); Console.WriteLine("4. Divide"); Console.WriteLine("5. Exit"); int opt = Convert.ToInt32(Console.ReadLine()); while (opt != 5) { Console.WriteLine("Please enter a:"); int a = Convert.ToInt32(Console.ReadLine()); Console.WriteLine("Please enter b:"); int b = Convert.ToInt32(Console.ReadLine()); if (opt == 1) { Console.WriteLine(a + b); } else if (opt == 2) { Console.WriteLine(a - b); } else if (opt == 3) { Console.WriteLine(a * b); } else if (opt == 4) { Console.WriteLine(a / b); } else { Console.WriteLine("Wrong option!"); } Console.WriteLine("Select your option:"); Console.WriteLine("1. Add"); Console.WriteLine("2. Subtract"); Console.WriteLine("3. Multiply"); Console.WriteLine("4. Divide"); Console.WriteLine("5. Exit"); opt = Convert.ToInt32(Console.ReadLine()); } }