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Lab: Data Types and Variables
I. Integer and Real Numbers
Integer Operations
using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Threading.Tasks; namespace Lab { internal class Program { static void Main(string[] args) { Console.Write("First number: "); int a = Convert.ToInt32(Console.ReadLine()); Console.Write("Second number: "); int b = Convert.ToInt32(Console.ReadLine()); Console.Write("Third number: "); int c = Convert.ToInt32(Console.ReadLine()); Console.Write("Fourth number: "); int d = Convert.ToInt32(Console.ReadLine()); Console.WriteLine("Result: {0}", (((a+b)/c)*d)); Console.ReadKey(); } } }
Circle Area
using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Threading.Tasks; namespace CircleArea { internal class Program { static void Main(string[] args)
double r = double.Parse(Console.ReadLine()); Console.WriteLine("{0:F12}", Math.PI * r * r); Console.ReadLine(); } } }
Exact Sum of Real Numbers
using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Threading.Tasks; namespace SumofRealNum { internal class Program { static void Main(string[] args) { int n = int.Parse(Console.ReadLine()); decimal sum = 0; for (int i = 0; i < n; i++) { decimal num = decimal.Parse(Console.ReadLine()); sum = sum + num; } Console.WriteLine(sum); Console.ReadLine(); } } } II. Data Types and Type Conversion
Elevator
using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Threading.Tasks; namespace Elevator {
namespace SpecialNumbers { internal class Program { static void Main(string[] args) { int n = int.Parse(Console.ReadLine()); int digits = 0; for (int num = 1; num <= n; num++) { digits = num; int sumOfDigits = 0; while (num > 0) { sumOfDigits += num % 10; num = num / 10; } bool isSpecialNumbers = false; isSpecialNumbers = (sumOfDigits == 5) || (sumOfDigits == 7) || (sumOfDigits == 11); Console.WriteLine($"{digits} -> {isSpecialNumbers}"); sumOfDigits = 0; num = digits; } Console.ReadLine(); } } }
Triples of Latin Letters
using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Threading.Tasks; namespace TriplesofLatinLetters { internal class Program { static void Main(string[] args) { int n = int.Parse(Console.ReadLine()); for (int i = 0; i < n; i++) for (int j = 0; j < n; j++) for (int k = 0; k < n; k++) {
char letter1 = (char)('a' + i); char letter2 = (char)('a' + j); char letter3 = (char)('a' + k); Console.WriteLine("{0}{1}{2}", letter1, letter2, letter3); } Console.ReadLine(); } } }
Concat Names
using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Threading.Tasks; namespace ConcaNames { internal class Program { static void Main(string[] args) { string name1 = Console.ReadLine(); string name2 = Console.ReadLine(); string delimiter = Console.ReadLine(); Console.WriteLine($"{name1} {delimiter} {name2}"); Console.ReadLine(); } } } III. Variables
Refactor Volume of Pyramid
using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Threading.Tasks; namespace Pyramid
isSpecialNumbers = (sumOfDigits == 5) || (sumOfDigits == 7) || (sumOfDigits == 11); Console.WriteLine($"{digits} -> {isSpecialNumbers}"); sumOfDigits = 0; num = digits; } Console.ReadLine(); } } }
