How to find second highest number in array by c programming

How to find second highest number in array by c programming

if you are using turbo c compiler please use #include<conio.h> header file. and if you are using devc++ or any other compiler than simply go through the given program below.

#include <stdio.h>

int main(){

    

    char a[20],i,n,temp;

    printf("enter size of array\n");

    scanf("%d",&n);

    printf("enter elements of array\n");

    for(i=0;i<n;i++){

       scanf("%d",&a[i]); 

        

    }

    

    for(i=0;i<n;i++){

        

        if(a[i]>a[0])

        {

           temp=a[0]; 

           a[0]=a[i];

           a[i]=temp;

           

           

            

        }

    }

    

    for(i=1;i<n;i++){

        

        if(a[i]>a[1]){

            a[1]=a[i];

        }

    }

    printf("second highest number is %d\n",a[1]);

    

}