Basic C# Programming Problem and Solutions: Part 1

Output

Problem 6

In a company, worker efficiency is determined on the basis of the time required for a worker to complete a specific job. If the time taken by the worker is between 2 - 3 hours, then the worker is said to be highly efficient. If the time required by the worker is 3 - 4 hours, then the worker is ordered to increase their speed. If the time taken is 4 - 5 hours then the worker is given training to improve his speed and if the time taken by the worker is more than 5 hours then the worker must leave the company. If the time taken by the worker is input through the keyboard then find the efficiency of the worker.

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace Problem6
{
  class Problem6
  {
    static void Main(string[] args)
    {
      Console.WriteLine("\t\tName: Ehtesham Mehmood\n\t\tRoll No: 11014119-131\n\t\tSection: AE\n \t\t        UOG\n");
      int time;
      Console.WriteLine("Enter Time Required For A Worker To Complete A Particular Job In Hours");
      time = Convert.ToInt32(Console.ReadLine());
      if (time >= 2 && time >= 3)
      {
        Console.WriteLine("Worker Efficiency Is Highly Efficient.");
      }
      if (time >= 3 && time >= 4)
      {
        Console.WriteLine("Worker Should Improve His Speed.");
      }
      if (time >= 4 && time >= 5)
      {
        Console.WriteLine("Worker Is Given Training To Improve His Speed.");
      }
      if (time > 5)
      {
        Console.WriteLine("Worker Should Leave The Company.");
      }
      Console.ReadKey();
    }
  }
}

Output

Problem 7

Write a program using conditional operators to determine whether a year entered through the keyboard is a leap year or not.

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace Problem7
{
  class Problem7
  {
    static void Main(string[] args)
    {
      Console.WriteLine("\t\tName: Ehtesham Mehmood\n\t\tRoll No: 11014119-131\n\t\tSection: AE\n \t\t        UOG\n");
      int year;
      string a;
      Console.WriteLine("Enter A Year:");
      year = Convert.ToInt32(Console.ReadLine());
      a = year % 4 == 0 ? "Year Is Leap" : "It Is Not A Leap Year:";
      Console.WriteLine(a);
      Console.ReadKey();
    }
  }
}

Output

Problem 8

Write a program using a switch statement that takes one character value from the user and checks whether the entered value is an arithmetic operator, logical operator, conditional operator, relational operator or something else.

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace Problem8
{
  class Problem8
  {
    static void Main(string[] args)
    {
      Console.WriteLine("\t\tName: Ehtesham Mehmood\n\t\tRoll No: 11014119-131\n\t\tSection: AE\n \t\t        UOG\n");
      string value;
      Console.WriteLine("Enter A Operator:");
      value = Console.ReadLine();
      switch (value)
      {
      case "+":
        Console.WriteLine("This Is Arithmatic Operator:");
        break;
      case "-":
        Console.WriteLine("This Is Arithmatic Operator:");
        break;
      case "*":
        Console.WriteLine("This Is Arithmatic Operator:");
        break;
      case "%":
        Console.WriteLine("This Is Arithmatic Operator:");
        break;
      case "/":
        Console.WriteLine("This Is Arithmatic Operator:");
        break;
      case "&":
        Console.WriteLine("This Is Arithmatic Operator:");
        break;
      case "--":
        Console.WriteLine("This Is Arithmatic Operator:");
        break;
      case "++":
        Console.WriteLine("This Is Arithmatic Operator:");
        break;
      case "|":
        Console.WriteLine("This Is Logical Operator:");
        break;
      case "!":
        Console.WriteLine("This Is Logical Operator:");
        break;
      case "^":
        Console.WriteLine("This Is Logical Operator:");
        break;
      case "&&":
        Console.WriteLine("This Is Logical Operator:");
        break;
      case "||":
        Console.WriteLine("This Is Logical Operator:");
        break;
      case "==":
        Console.WriteLine("This Is Relational Operator:");
        break;
      case "!=":
        Console.WriteLine("This Is Logical Operator:");
        break;
      case "<":
        Console.WriteLine("This Is Logical Operator:");
        break;
      case ">":
        Console.WriteLine("This Is Logical Operator:");
        break;
      case "<=":
        Console.WriteLine("This Is Logical Operator:");
        break;
      case ">=":
        Console.WriteLine("This Is Logical Operator:");
        break;
      case "?":
        Console.WriteLine("This Is Conditional Operator:");
        break;
      default:
        Console.WriteLine("This Is Something Else Operator:");
        break;
      }
      Console.ReadKey();
    }
  }
}

Output

Problem 9

Write a program that prints an identity matrix using a for loop, in other words takes a value n from the user and shows the identity table of size n * n.

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace Problem9
{
  class Problem9
  {
    static void Main(string[] args)
    {
      Console.WriteLine("\t\tName: Ehtesham Mehmood\n\t\tRoll No: 11014119-131\n\t\tSection: AE\n \t\t        UOG\n");
      int size;
      Console.WriteLine("Enter The Size Of The Identity Matrix:");
      size = Convert.ToInt32(Console.ReadLine());
      Console.WriteLine("\n\n Identity Matrix\n\n");
      for (int i = 0; i < size; i++)
      {
        for (int j = 0; j < size; j++)
        {
          if (i == j)
          {
            Console.Write(1);
          } else
          {
            Console.Write(0);
          }
        }
        Console.WriteLine("\n");
      }
      Console.ReadKey();
    }
  }
}

Output

Problem 10

Write a program using a for loop that prints the following series.

1 2 4 8 16 21 64 128 …nth iteration.

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace Problem10
{
  class Problem10
  {
    static void Main(string[] args)
    {
      Console.WriteLine("\t\tName: Ehtesham Mehmood\n\t\tRoll No: 11014119-131\n\t\tSection: AE\n \t\t        UOG\n");
      int value;
      double result;
      Console.WriteLine("Enter Some Value:");
      value = Convert.ToInt32(Console.ReadLine());
      Console.WriteLine("\nSeries Is:\n");
      for (int i = 0; i <= value; i++)
      {
        result = Math.Pow(2, i);
        Console.Write(result);
        Console.Write(" ");
      }
      Console.ReadKey();
    }
  }
}

Output

Problem 11

Write a program using a for loop that prints the following output (you need to find a pattern to print letters in this order):

A B D H P

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace Problem11
{
  class Problem11
  {
    static void Main(string[] args)
    {
      char ch;
      int i = 1;
      int j = 0;
      while (i <= 16)
      {
        j = i + 64;
        ch = (char) j;
        Console.Write(ch);
        Console.Write(" ");
        i = i * 2;
      }
      Console.ReadKey();
    }
  }
}

Output

Problem 12

Write a program using a loop that prints the following output.

1 2 2 3 3 3 4 4 4 4 5 5 5 5 5 6 6 6 6 6 6 . . . nth iteration.

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace Problem12
{
  class Problem12
  {
    static void Main(string[] args)
    {
      int value;
      Console.WriteLine("Enter A Value:");
      value = Convert.ToInt32(Console.ReadLine());
      Console.WriteLine("\n");
      for (int i = 1; i <= value; i++)
      {
        for (int j = 1; j <= i; j++)
        {
          Console.Write(i);
        }
        Console.Write(" ");
      }
      Console.ReadKey();
    }
  }
}

Output

Problem 13

Write a program to print all the ASCII values and their equivalent characters using a while loop. The ASCII values vary from 0 to 255.

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace Problem13
{
  class Problem13
  {
    static void Main(string[] args)
    {
      char ch;
      int i = 0;
      while (i <= 255)
      {
        Console.Write(i);
        Console.Write(" ");
        ch = (char) i;
        Console.WriteLine(ch);
        i++;
      }
      Console.ReadKey();
    }
  }
}

Output

Problem 14

Write a program to print all the ASCII values and their equivalent characters using a do-while loop. The ASCII values vary from 10 to 255.

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace Problem15
{
  class Problem15
  {
    static void Main(string[] args)
    {
      Console.WriteLine("\t\tName: Ehtesham Mehmood\n\t\tRoll No: 11014119-131\n\t\tSection: AE\n \t\t        UOG\n");
      char ch;
      int i = 10;
      do
      {
        Console.Write(i);
        Console.Write(" ");
        ch = (char) i;
        Console.WriteLine(ch);
        i++;
      } while (i <= 255);
      Console.ReadKey();
    }
  }
}

Output