C# Sharp Exercises: Find the second largest element in an array

C# Sharp Array: Exercise-16 with Solution

Write a program in C# Sharp to find the second largest element in an array.

Sample Solution:-

C# Sharp Code:

using System;  
public class Exercise16  
{  
    public static void Main() 
  {
    int n,i,j=0,lrg,lrg2nd;
  	int[] arr1 = new int[50];
  
       Console.Write("\n\nFind the second largest element in an array :\n");
       Console.Write("-----------------------------------------\n");  
  
       Console.Write("Input the size of array : ");
	   n = Convert.ToInt32(Console.ReadLine()); 	   
    /* Stored values into the array*/
       Console.Write("Input {0} elements in the array :\n",n);
       for(i=0;i<n;i++)
            {
	      Console.Write("element - {0} : ",i);
		  arr1[i] = Convert.ToInt32(Console.ReadLine()); 		  
	    }
/* find location of the largest element in the array */		
   lrg=0;

  for(i=0;i<n;i++)
  {
      if(lrg<arr1[i])
	  {
           lrg=arr1[i];
           j = i;
      }
  }
/* ignore the largest element and find the 2nd largest element in the array */		
   lrg2nd=0;
  for(i=0;i<n;i++)
  {
     if(i==j)
        {
          i++;  /* ignoring the largest element */
          i--;
        }
      else
        {
           if(lrg2nd<arr1[i])
	         {
               lrg2nd=arr1[i];
             }
        }
  }

  Console.Write("The Second largest element in the array is :  {0} \n\n", lrg2nd);
}
}

Sample Output:

Find the second largest element in an array :                                                                 
-----------------------------------------                                                                     
Input the size of array : 5                                                                                   
Input 5 elements in the array :                                                                               
element - 0 : 2                                                                                               
element - 1 : 4                                                                                               
element - 2 : 6                                                                                               
element - 3 : 8                                                                                               
element - 4 : 10                                                                                              
The Second largest element in the array is :  8 

Flowchart:

C# Sharp Code Editor:

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