Write a program to find out second largest element of an unsorted array.

 /*Program to calculate second largest number using array

Author:Priyanshu, Date: April 21,2021*/

#include<stdio.h>

#include<conio.h>

main()

  {

     int arr[10000],size,i,temp,second;

     clrscr();

     printf("Enter number (1 to 10000) : ");

     scanf("%d",&size);

     for(i=0;i<size;++i)

{

   printf("Enter element of array: ");

   scanf("%d",&arr[i]);

}

     temp = second = arr[0];

     for(i=1;i<size;++i)

{

   if(temp < arr[i])

      {

second = temp;

temp = arr[i];

      }

   else

      {

if(temp > arr[i] && arr[i] > second)

    {

       second = arr[i];

    }

      }

}

     printf("\nSecond largest number : %d",second);

     getch();

     return(0);

  }