UVA - 900 - Brick Wall Patterns

//Just Fibonacci series

#include <stdio.h>

int main()
{   int cases,i;
    long long add[51];
        add[0]=1;
        add[1]=1;
        for(i=2;i<51;i++){
            add[i]=add[i-2]+add[i-1];

        }
    while(1){
        scanf("%d",&cases);
        if(cases==0)
            break;
        printf("%lld\n",add[cases]);
    }
       return 0;
}