find second largest element of an unsorted array

c program to find out second largest element of an unsorted array

#include<stdio.h>

int main(){

int a[50],size,i,j=0,big,secondbig;

printf("Enter the size of the array: ");

scanf("%d",&size);

printf("Enter %d elements in to the array: ", size);

for(i=0;i<size;i++)

scanf("%d",&a[i]);

big=a[0];

for(i=1;i<size;i++){

if(big<a[i]){

big=a[i];

j = i;

}

secondbig=a[size-j-1];

for(i=1;i<size;i++){

if(secondbig <a[i] && j != i)

secondbig =a[i];

}

printf("Second largest element is: %d", secondbig);

return 0;

}