C Program to check entered value is character integer or special symbol

C# Program to check entered value is character, integer or special symbol

Program Statement:

Write a program which takes one value from user and check whether the entered value is character, integer or special symbol.

Solution:

 static void Main(string[] args)
 {
 char value;
 int a;
 Console.WriteLine("Enter value to check Character, integer or special symbols ");
 value = Convert.ToChar(Console.ReadLine());
 a=(int)value;
 if (a >= 65 && a <= 90 || a >= 97 && a <= 122)
 Console.WriteLine("Entered Value is Character");
 else if(a>=48 && a<=57)
 Console.WriteLine("Entered Value is Integer");
 else if(a>=0 && a<=47 || a>=58&&a<=64 || a>=91&&a<=96 || a>=123&&a<=127)
 Console.WriteLine("Entered Value is Special Symbols");
 else
 Console.WriteLine("Invlaid input :(");
 Console.ReadLine();
 }
 

C Program should be able to search a value in the array using binary search algorithm

C# Program which takes n values in an array and then program should be able to search a value in the array using binary search algorithm

Program Statement:

Write a program which takes n values in an array and then program should be able to search a value in the array using binary search algorithm. Hint: You have to sort that array first because binary search can be applied only on sorted array

Solution:

 public class search
 {
 int n, num, s = 1, e, mid;
 public void show()
 {
 Console.Write(" Enter length of array : ");
 n = Convert.ToInt32(Console.ReadLine());
 int[] array = new int[n];
 Console.WriteLine(" Enter {0} numbers : ", n);
 for (int i = 0; i < n; i++)
 {
 array[i] = Convert.ToInt32(Console.ReadLine());
 }
 for (int x = 0; x < n; x++)
 {
 for (int y = x + 1; y < n; y++)
 {
 if (array[x] > array[y])
 {
 int temp;
 temp = array[y];
 array[y] = array[x];
 array[x] = temp;
 }
 }
 }
 Console.Write(" Enter number to search : ");
 num = Convert.ToInt32(Console.ReadLine());
 e = n;
 mid = (s + e) / 2;
 if (num == array[mid])
 { Console.Write(" Element {0} found! ", array[mid]); }
 else if (num < array[mid])
 {
 for (int x = 0; x < mid; x++)
 {
 if (num == array[x])
 { Console.Write(" Element {0} found! ", array[x]); }
 }
 }
 else if (num < array[mid])
 {
 for (int y = mid; y < n; y++)
 {
 if (num == array[y])
 { Console.Write(" Element {0} found! ", array[y]); }
 }
 }
 else
 Console.WriteLine(" Element not found! ");
 }
 } 

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