nyoj-812-水题~~

#include<stdio.h>
int main()
{
    int n,a[33];
    while(scanf("%d",&n)!=EOF)
    {
        int i,k,sum=0,t,m;
        for(i=0;i<n;i++)
        {
            scanf("%d",&m);
            k=0;
            t=m;
            while(t)
            {
                if(t&1) k++;
                t>>=1;
            }
            if(k%2==0&&k)
            sum+=m;
        }
        k=0;
        while(sum)
        {
            a[k++]=sum%2;
            sum/=2;
        }
        if(k)
        {
          for(i=k-1;i>=0;i--)
          printf("%d",a[i]);
        }
        else printf("0");
        printf("\n");
    }
    return 0;
}