searching in a array

#include<stdio.h>

int main()

{

    int a[' '],n,i,s,p=0;

    printf("enter size of your array ");

    scanf("%d",&n);

    for(i=0;i<n;i++)

    {

        printf("enter a value in a[%d]",i+1);

        scanf("%d",&a[i]);

    }

 for(i=0;i<n;i++)

 printf("%3d",a[i]);

 printf("\nenter the number you want to search ");

 scanf("%d",&s);

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

{

if (s==a[i])

{

printf("item found at %d position",i+1);

p=1;

break;

}

}

if (p==0)

printf("item not found");

return 0;

}